/* ==========================================================================
   Частный мастер по кондиционерам — Алексей Смирнов
   style.css — Профессиональный, чистый и современный CSS3 код без фреймворков
   ========================================================================== */

:root {
    --primary: #0f172a; /* Slate 900 - Глубокий темно-синий */
    --primary-light: #1e293b; /* Slate 800 */
    --accent-cool: #0ea5e9; /* Sky 500 - Ледяной/климатический синий */
    --accent-cool-glow: rgba(14, 165, 233, 0.15);
    --accent-warm: #f97316; /* Orange 500 - Оранжевый акцент для кнопок (CTA) */
    --accent-warm-hover: #ea580c;
    --text-main: #334155; /* Slate 700 */
    --text-muted: #64748b; /* Slate 500 */
    --bg-light: #f8fafc; /* Slate 50 */
    --bg-card: #ffffff;
    --success: #10b981; /* Зеленый - доступность мастера */
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 1. Сброс стилей и базовые правила */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-main);
    background-color: var(--bg-light);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--primary);
    font-weight: 700;
    line-height: 1.25;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

button, input, textarea, select {
    font-family: inherit;
    outline: none;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 2. Вспомогательные классы */
.section-padding {
    padding: 100px 0;
}

@media (max-width: 768px) {
    .section-padding {
        padding: 60px 0;
    }
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px auto;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--accent-cool);
    border-radius: 2px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Кнопки и значки */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    font-weight: 700;
    font-family: var(--font-heading);
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
}

.btn-primary {
    background-color: var(--accent-warm);
    color: white;
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
}

.btn-primary:hover {
    background-color: var(--accent-warm-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.45);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background-color: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.btn-cool {
    background-color: var(--accent-cool);
    color: white;
    box-shadow: 0 4px 14px rgba(14, 165, 233, 0.3);
}

.btn-cool:hover {
    background: #0284c7;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.4);
}

.badge-installment {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
    padding: 6px 14px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
    animation: pulse-badge 2s infinite alternate;
}

@keyframes pulse-badge {
    0% { transform: scale(1); }
    100% { transform: scale(1.05); }
}

/* 3. Шапка сайта (Header & Navigation) */
header {
    position: sticky;
    top: 0;
    background-color: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--accent-cool), #0284c7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--primary);
    line-height: 1.1;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--accent-cool);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-links a {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
    position: relative;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--accent-cool);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-cool);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.header-contact {
    display: flex;
    align-items: center;
    gap: 20px;
}

.contact-phone {
    display: flex;
    flex-direction: column;
    text-align: right;
}

.phone-number {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.phone-number:hover {
    color: var(--accent-cool);
}

.working-hours {
    font-size: 0.75rem;
    color: var(--success);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
}

.pulse-dot {
    width: 7px;
    height: 7px;
    background-color: var(--success);
    border-radius: 50%;
    animation: pulse-dot-anim 1.5s infinite;
}

@keyframes pulse-dot-anim {
    0% { transform: scale(0.8); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 1; }
    100% { transform: scale(0.8); opacity: 0.5; }
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2.5px;
    background-color: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* 4. Главный экран (Hero Section) */
.hero {
    position: relative;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #f8fafc 100%);
    overflow: hidden;
    padding: 80px 0 100px 0;
    border-bottom: 1px solid var(--border-color);
}

.hero::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
    pointer-events: none;
    animation: drift 20s infinite alternate linear;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -5%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
    pointer-events: none;
    animation: drift 15s infinite alternate-reverse linear;
}

@keyframes drift {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(50px, 30px) rotate(10deg); }
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-master-card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.master-intro-badge {
    align-self: flex-start;
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(14, 165, 233, 0.2);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.master-title {
    font-size: 3rem;
    letter-spacing: -1px;
    line-height: 1.15;
}

.master-title span {
    color: var(--accent-cool);
    background: linear-gradient(to right, var(--accent-cool), #0284c7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.master-tagline {
    font-size: 1.15rem;
    color: var(--text-main);
    max-width: 540px;
}

.master-visual-wrapper {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-top: 16px;
}

.master-frame {
    position: relative;
    width: 220px;
    height: 270px;
    border-radius: var(--radius-lg);
    padding: 10px;
    background: white;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.master-frame::before {
    content: '';
    position: absolute;
    inset: -6px;
    border: 2px dashed var(--accent-cool);
    border-radius: calc(var(--radius-lg) + 6px);
    z-index: -1;
    opacity: 0.6;
}

.master-photo-container {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: #f1f5f9;
    position: relative;
}

.master-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
}

.master-photo-placeholder {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0ea5e9 0%, #1e3a8a 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    padding: 16px;
}

.master-photo-placeholder svg {
    width: 48px;
    height: 48px;
    margin-bottom: 12px;
    opacity: 0.9;
    animation: air-blow 3s ease-in-out infinite alternate;
}

@keyframes air-blow {
    0% { transform: translateY(0); }
    100% { transform: translateY(-8px); }
}

.master-photo-placeholder span {
    font-size: 0.85rem;
    font-weight: 700;
    font-family: var(--font-heading);
}

.master-photo-placeholder p {
    font-size: 0.7rem;
    opacity: 0.7;
}

.master-credentials {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.credential-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.credential-icon {
    background: rgba(14, 165, 233, 0.1);
    color: var(--accent-cool);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.credential-text h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.credential-text p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Форма быстрой заявки справа */
.hero-form-container {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(226, 232, 240, 0.8);
    position: relative;
}

.form-header-badge {
    position: absolute;
    top: -18px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 6px 18px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 700;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.2);
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-pulse {
    width: 8px;
    height: 8px;
    background-color: var(--success);
    border-radius: 50%;
    animation: pulse-dot-anim 1.2s infinite;
}

.form-heading {
    text-align: center;
    margin-bottom: 24px;
    margin-top: 8px;
}

.form-heading h3 {
    font-size: 1.35rem;
    margin-bottom: 6px;
}

.form-heading p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.form-group {
    margin-bottom: 18px;
    position: relative;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    background-color: #f8fafc;
    border: 1px solid #cbd5e1;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--primary);
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--accent-cool);
    background-color: white;
    box-shadow: 0 0 0 3px var(--accent-cool-glow);
}

textarea.form-control {
    resize: none;
    height: 80px;
}

.form-submit-btn {
    width: 100%;
    margin-top: 10px;
    padding: 16px;
    font-size: 0.95rem;
}

.form-secure-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 14px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* 5. Доверие / Цифры (Trust Bar) */
.trust-bar {
    background-color: var(--primary);
    color: white;
    padding: 28px 0;
    border-bottom: 4px solid var(--accent-cool);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}

.trust-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.trust-number {
    font-size: 2.2rem;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--accent-cool);
    line-height: 1;
}

.trust-text {
    font-size: 0.85rem;
    font-weight: 600;
    opacity: 0.85;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 6. Баннер Рассрочки и Сетка Услуг */
.services-section {
    background-color: var(--bg-light);
}

.installment-banner {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border-radius: var(--radius-lg);
    padding: 40px;
    color: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 36px;
    margin-bottom: 60px;
    border: 1px solid rgba(14, 165, 233, 0.2);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.installment-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
    pointer-events: none;
}

.installment-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 700px;
}

.installment-title-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.installment-title-row h3 {
    color: white;
    font-size: 1.8rem;
}

.installment-desc {
    font-size: 0.95rem;
    opacity: 0.85;
    line-height: 1.5;
}

.installment-advantages {
    display: flex;
    gap: 24px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.inst-adv-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
}

.inst-adv-item svg {
    color: var(--accent-cool);
}

.installment-cta {
    flex-shrink: 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(14, 165, 233, 0.4);
}

.service-img-box {
    height: 200px;
    background-color: #e2e8f0;
    position: relative;
    overflow: hidden;
}

.service-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.service-card:hover .service-img {
    transform: scale(1.08);
}

.service-img-placeholder {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #334155 0%, #0f172a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.service-img-placeholder svg {
    opacity: 0.35;
    width: 64px;
    height: 64px;
    transition: var(--transition);
}

.service-card:hover .service-img-placeholder svg {
    transform: scale(1.1) rotate(5deg);
    opacity: 0.5;
}

.service-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background-color: var(--accent-cool);
    color: white;
    padding: 6px 12px;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 700;
    z-index: 5;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.service-card-body {
    padding: 28px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.service-title {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.service-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 20px;
    flex-grow: 1;
    line-height: 1.5;
}

.service-price-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    border-top: 1px solid var(--border-color);
    padding-top: 18px;
    margin-bottom: 20px;
}

.service-price-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
}

.service-price-value {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary);
    font-family: var(--font-heading);
}

.service-price-value span {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
}

.service-btn {
    width: 100%;
    font-size: 0.8rem;
    padding: 12px;
}

.service-installment-note {
    font-size: 0.75rem;
    color: #d97706;
    font-weight: 700;
    text-align: center;
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

/* 7. Калькулятор неисправностей */
.calc-section {
    background-color: white;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.calc-box {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 40px;
    box-shadow: var(--shadow-sm);
}

.calc-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
}

.calc-steps h3 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.calc-subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 24px;
}

.symptoms-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.symptom-card {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px 16px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.symptom-card:hover {
    border-color: var(--accent-cool);
    transform: translateY(-2px);
}

.symptom-card.active {
    border-color: var(--accent-cool);
    background-color: rgba(14, 165, 233, 0.04);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.1);
}

.symptom-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: var(--transition);
}

.symptom-card.active .symptom-icon {
    background-color: var(--accent-cool);
    color: white;
}

.symptom-card:hover .symptom-icon {
    color: var(--accent-cool);
}

.symptom-title {
    font-size: 0.85rem;
    font-weight: 700;
    font-family: var(--font-heading);
    line-height: 1.3;
}

.symptom-checkbox {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-size: 10px;
    color: white;
}

.symptom-card.active .symptom-checkbox {
    border-color: var(--accent-cool);
    background-color: var(--accent-cool);
}

.calc-result-pane {
    background-color: white;
    border-radius: var(--radius-md);
    padding: 32px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
}

.result-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 16px;
    margin-bottom: 20px;
}

.result-title {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.result-symptom-name {
    font-weight: 700;
    color: var(--accent-cool);
}

.price-range-box {
    background-color: var(--bg-light);
    border-radius: var(--radius-sm);
    padding: 16px;
    text-align: center;
    margin-bottom: 20px;
}

.price-range-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    font-weight: 700;
    margin-bottom: 4px;
}

.price-range-val {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
    font-family: var(--font-heading);
}

.price-range-includes {
    font-size: 0.75rem;
    color: var(--success);
    font-weight: 600;
    margin-top: 4px;
}

.calc-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.calc-form h4 {
    font-size: 0.9rem;
    margin-bottom: 2px;
}

.calc-submit-btn {
    width: 100%;
    margin-top: 8px;
}

.calc-installment-promo {
    font-size: 0.75rem;
    text-align: center;
    color: #d97706;
    font-weight: 700;
    margin-top: 12px;
    background-color: #fffbeb;
    padding: 8px;
    border-radius: var(--radius-sm);
    border: 1px dashed #fcd34d;
}

/* 8. Преимущества */
.advantages-section {
    background-color: var(--bg-light);
}

.adv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.adv-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 36px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.adv-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(14, 165, 233, 0.3);
}

.adv-header {
    display: flex;
    align-items: center;
    gap: 16px;
}

.adv-icon-box {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background-color: rgba(14, 165, 233, 0.1);
    color: var(--accent-cool);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.adv-title {
    font-size: 1.15rem;
    font-weight: 700;
}

.adv-text {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.adv-comparison {
    margin-top: auto;
    border-top: 1px dashed var(--border-color);
    padding-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.comparison-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    font-weight: 600;
}

.comp-label {
    color: var(--text-muted);
}

.comp-val-master {
    color: var(--success);
    display: flex;
    align-items: center;
    gap: 4px;
}

.comp-val-company {
    color: #ef4444;
    text-decoration: line-through;
    opacity: 0.65;
}

/* 9. Слайдер До / После */
.slider-container {
    max-width: 750px;
    margin: 0 auto;
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 4px solid white;
    aspect-ratio: 16/10;
}

.slider-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
}

.slider-before, .slider-after {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.slider-before {
    z-index: 1;
}

.slider-after {
    z-index: 2;
    clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
}

.slider-placeholder-content {
    position: absolute;
    bottom: 20px;
    background-color: rgba(15, 23, 42, 0.85);
    color: white;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 700;
    z-index: 5;
    font-family: var(--font-heading);
    letter-spacing: 0.5px;
}

.label-before {
    left: 20px;
}

.label-after {
    right: 20px;
}

.slider-range {
    position: absolute;
    z-index: 10;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    opacity: 0;
    cursor: ew-resize;
    -webkit-appearance: none;
}

.slider-handle-bar {
    position: absolute;
    z-index: 5;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 4px;
    background-color: white;
    transform: translateX(-50%);
    pointer-events: none;
    box-shadow: 0 0 10px rgba(0,0,0,0.3);
}

.slider-handle-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
    background-color: var(--accent-cool);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(14, 165, 233, 0.5);
    border: 3px solid white;
    font-weight: bold;
}

.slider-instructions {
    text-align: center;
    margin-top: 24px;
    font-size: 0.9rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
}

/* 10. Отзывы клиентов */
.reviews-section {
    background-color: var(--bg-light);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.review-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 18px;
    position: relative;
    transition: var(--transition);
}

.review-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(14, 165, 233, 0.25);
}

.review-quote {
    color: var(--accent-cool);
    opacity: 0.15;
    position: absolute;
    top: 20px;
    right: 20px;
}

.stars-row {
    display: flex;
    gap: 4px;
    color: #f59e0b;
}

.review-text {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-main);
    flex-grow: 1;
}

.review-client-row {
    display: flex;
    align-items: center;
    gap: 16px;
    border-top: 1px solid var(--border-color);
    padding-top: 18px;
}

.client-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--bg-light);
    overflow: hidden;
    flex-shrink: 0;
}

.client-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.client-avatar-fallback {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #cbd5e1 0%, #94a3b8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
}

.client-info h4 {
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.client-info p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.review-tag {
    background-color: var(--bg-light);
    color: var(--accent-cool);
    padding: 4px 10px;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 700;
    align-self: flex-start;
}

/* 11. Вопросы и ответы (FAQ) */
.faq-section {
    background-color: white;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--accent-cool);
}

.faq-header {
    padding: 20px 24px;
    background-color: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
    transition: var(--transition);
}

.faq-item.active .faq-header {
    background-color: rgba(14, 165, 233, 0.02);
}

.faq-question {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary);
    padding-right: 20px;
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--text-muted);
    transition: var(--transition);
    line-height: 1;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
    color: var(--accent-cool);
}

.faq-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
}

.faq-item.active .faq-body {
    max-height: 1000px;
    transition: max-height 0.5s cubic-bezier(1, 0, 1, 0);
}

.faq-content {
    padding: 0 24px 20px 24px;
    font-size: 0.95rem;
    color: var(--text-main);
    border-top: 1px solid transparent;
    line-height: 1.6;
}

.faq-item.active .faq-content {
    border-color: #f1f5f9;
}

/* 12. Контакты и Карта */
.contacts-section {
    background-color: var(--bg-light);
    position: relative;
}

.contacts-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 48px;
}

.contacts-info-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 40px;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contacts-title-block h3 {
    font-size: 1.8rem;
    margin-bottom: 8px;
}

.contacts-title-block p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.contacts-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-detail-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.detail-icon {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background-color: rgba(14, 165, 233, 0.1);
    color: var(--accent-cool);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.detail-text h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.detail-text p, .detail-text a {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary);
}

.detail-text a:hover {
    color: var(--accent-cool);
}

.messengers-cta {
    background-color: #f8fafc;
    border-radius: var(--radius-md);
    padding: 24px;
    border: 1px dashed var(--border-color);
}

.messengers-cta h4 {
    font-size: 0.95rem;
    margin-bottom: 12px;
    text-align: center;
}

.messenger-buttons {
    display: flex;
    gap: 12px;
}

.msg-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.85rem;
    color: white;
    transition: var(--transition);
}

.msg-btn-whatsapp {
    background-color: #25d366;
}

.msg-btn-whatsapp:hover {
    background-color: #128c7e;
    transform: translateY(-2px);
}

.msg-btn-telegram {
    background-color: #0088cc;
}

.msg-btn-telegram:hover {
    background-color: #006699;
    transform: translateY(-2px);
}

.map-container {
    width: 100%;
    height: 100%;
    min-height: 450px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    position: relative;
    background-color: #e2e8f0;
}

.map-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle, #f1f5f9 0%, #cbd5e1 100%);
    color: var(--primary);
    text-align: center;
    padding: 24px;
}

.map-placeholder svg {
    width: 64px;
    height: 64px;
    color: var(--accent-cool);
    margin-bottom: 16px;
}

.map-placeholder h4 {
    font-size: 1.15rem;
    margin-bottom: 4px;
}

.map-placeholder p {
    font-size: 0.85rem;
    color: var(--text-muted);
    max-width: 320px;
}

/* 13. Подвал (Footer) */
footer {
    background-color: var(--primary);
    color: white;
    padding: 60px 0 30px 0;
    border-top: 4px solid var(--accent-cool);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 1fr;
    gap: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 40px;
    margin-bottom: 30px;
}

.footer-about {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-about p {
    font-size: 0.85rem;
    opacity: 0.75;
    line-height: 1.6;
}

.footer-links h4, .footer-contact-info h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: white;
    position: relative;
}

.footer-links h4::after, .footer-contact-info h4::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--accent-cool);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.85rem;
    opacity: 0.75;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent-cool);
    padding-left: 4px;
}

.footer-contact-info ul {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.85rem;
}

.footer-contact-item svg {
    color: var(--accent-cool);
    flex-shrink: 0;
}

.footer-contact-item p {
    opacity: 0.8;
}

.footer-contact-item a {
    font-weight: 700;
}

.footer-contact-item a:hover {
    color: var(--accent-cool);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    opacity: 0.6;
    flex-wrap: wrap;
    gap: 16px;
}

/* 14. Модальные окна (Popups / Overlay) */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    padding: 16px;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-box {
    background-color: white;
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 460px;
    box-shadow: var(--shadow-lg);
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.active .modal-box {
    transform: scale(1);
}

.modal-close-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
    transition: var(--transition);
}

.modal-close-btn:hover {
    color: var(--primary);
}

.modal-title {
    text-align: center;
    margin-bottom: 10px;
    font-size: 1.4rem;
}

.modal-desc {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 24px;
}

/* 15. Адаптивность и медиа-запросы (Responsive) */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 56px;
    }

    .hero-master-card {
        align-items: center;
        text-align: center;
    }

    .master-intro-badge {
        align-self: center;
    }

    .master-visual-wrapper {
        justify-content: center;
        width: 100%;
    }

    .hero-form-container {
        max-width: 540px;
        margin: 0 auto;
        width: 100%;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

@media (max-width: 960px) {
    .calc-grid {
        grid-template-columns: 1fr;
    }

    .adv-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .contacts-grid {
        grid-template-columns: 1fr;
    }

    .map-container {
        min-height: 350px;
    }
}

@media (max-width: 900px) {
    nav {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: white;
        flex-direction: column;
        justify-content: flex-start;
        padding: 40px 24px;
        gap: 40px;
        transition: var(--transition);
        z-index: 999;
        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
        border-top: 1px solid var(--border-color);
    }

    nav.active {
        left: 0;
    }

    .nav-links {
        flex-direction: column;
        gap: 24px;
        width: 100%;
        align-items: center;
    }

    .nav-links a {
        font-size: 1.1rem;
    }

    .header-contact {
        flex-direction: column;
        width: 100%;
        align-items: center;
        gap: 16px;
    }

    .contact-phone {
        text-align: center;
    }

    .menu-toggle {
        display: flex;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: translateY(8.5px) rotate(45deg);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: translateY(-8.5px) rotate(-45deg);
    }

    .installment-banner {
        flex-direction: column;
        text-align: center;
        padding: 32px 20px;
    }

    .installment-title-row {
        justify-content: center;
    }

    .installment-advantages {
        justify-content: center;
    }

    .installment-cta {
        width: 100%;
    }

    .installment-cta button {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .trust-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 700px) {
    .reviews-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 650px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .symptoms-grid {
        grid-template-columns: 1fr;
    }

    .calc-box {
        padding: 24px 16px;
    }
}

@media (max-width: 560px) {
    .master-title {
        font-size: 2.2rem;
    }

    .master-visual-wrapper {
        flex-direction: column;
        gap: 20px;
    }

    .master-frame {
        width: 180px;
        height: 220px;
    }

    .hero-form-container {
        padding: 24px 16px;
    }
}









/* ==========================================================================
   ПОЛНЫЙ ФИКС: ОДНОВРЕМЕННАЯ РАБОТА КАРУСЕЛИ И КАЛЬКУЛЯТОРА (СТРОГО ДЛЯ <= 768px)
   ========================================================================== */
@media (max-width: 768px) {
    
    /* ----------------------------------------------------------------------
       1. СТИЛИ ДЛЯ БЕСКОНЕЧНОЙ КАРУСЕЛИ УСЛУГ
       ---------------------------------------------------------------------- */
    
    /* Окно видимости карусели */
    .services-carousel-window {
        overflow: hidden !important;
        display: block !important;
        width: 100% !important;
        position: relative !important;
        padding: 10px 0 25px 0 !important;
    }

    /* Горизонтальный трек для прокрутки */
    .services-grid {
        display: flex !important;
        flex-direction: row !important;
        flex-wrap: nowrap !important;
        grid-template-columns: none !important; /* Отключаем сетку ПК */
        gap: 0 !important;
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
        will-change: transform;
    }

    /* Каждая карточка услуги строго на 1 экран */
    .services-grid .service-card {
        display: flex !important;
        flex-direction: column !important;
        flex: 0 0 100% !important;
        width: 100% !important;
        max-width: 100% !important;
        min-width: 100% !important;
        box-sizing: border-box !important;
        margin: 0 !important;
        padding: 0 16px !important; 
        background-clip: content-box !important;
    }

    /* Стили точек навигации НАД каруселью */
    .services-carousel-dots {
        display: flex !important;
        justify-content: center !important;
        align-items: center !important;
        gap: 8px !important;
        margin-top: 0 !important;
        margin-bottom: 20px !important;
        width: 100% !important;
    }

    .services-carousel-dots .dot {
        width: 10px !important;
        height: 10px !important;
        border-radius: 50% !important;
        background-color: var(--text-muted, #64748b) !important;
        opacity: 0.3 !important;
        cursor: pointer !important;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    }

    .services-carousel-dots .dot.active {
        background-color: var(--accent-cool, #0ea5e9) !important;
        opacity: 1 !important;
        width: 26px !important;
        border-radius: 6px !important;
    }


    /* ----------------------------------------------------------------------
       2. СТИЛИ ДЛЯ КОМПАКТНОГО КАЛЬКУЛЯТОРА (2 РЯДА ПО 3 КНОПКИ)
       ---------------------------------------------------------------------- */
    
    /* Сетка симптомов: строго 3 колонки (3 кнопки в ряд) */
    .symptoms-grid {
        display: grid !important;
        grid-template-columns: repeat(3, 1fr) !important; 
        gap: 6px !important; /* Узкий зазор, чтобы влезло на любой экран */
        margin-bottom: 16px !important;
        width: 100% !important;
    }

    /* Сжатая по высоте кнопка симптома */
    .symptom-card {
        padding: 10px 4px !important;
        min-height: 65px !important; /* Ультракомпактный размер */
        display: flex !important;
        flex-direction: column !important;
        justify-content: center !important;
        align-items: center !important;
        gap: 4px !important;
        border-width: 1px !important;
        border-radius: 8px !important;
        box-sizing: border-box !important;
    }

    /* Прячем огромные иконки, чекбоксы и SVG внутри кнопок калькулятора */
    .symptom-card .symptom-icon,
    .symptom-card .symptom-checkbox,
    .symptom-card svg {
        display: none !important;
    }

    /* Компактный шрифт для названий поломок */
    .symptom-title {
        font-size: 11px !important;
        line-height: 1.2 !important;
        margin: 0 !important;
        text-align: center !important;
        display: -webkit-box !important;
        -webkit-line-clamp: 2 !important; /* Перенос максимум в две строки */
        -webkit-box-orient: vertical !important;
        overflow: hidden !important;
    }

    /* Делаем блок вывода стоимости компактным */
    .calc-result-pane {
        margin-top: 8px !important;
        padding: 16px !important;
    }

    .price-range-val {
        font-size: 22px !important;
        margin: 4px 0 !important;
    }
}

/* Скрытие точек карусели на ПК */
@media (min-width: 769px) {
    .services-carousel-dots {
        display: none !important;
    }
}


  /* ----------------------------------------------------------------------
      ЗАКРЕПЛЕННЫЙ ТЕЛЕФОН В ШАПКЕ МОБИЛЬНОЙ ВЕРСИИ
       ---------------------------------------------------------------------- */

/* Полностью скрываем этот блок на всех компьютерах и ноутбуках */
.mobile-header-contact {
    display: none !important;
}

/* Включаем правила ТОЛЬКО для mobile */
@media (max-width: 768px) {
    header {
        position: relative;
        /* Резервируем место под кнопку внизу хедера */
        padding-bottom: 70px !important; 
    }

    /* Возвращаем оригинальные настройки контейнера хедера */
    .header-container {
        flex-direction: row !important;
        align-items: center !important;
        justify-content: space-between !important;
        padding: 15px 20px !important;
    }

    /* Бургер-меню справа */
    .menu-toggle {
        position: static !important;
    }

    /* Логотип слева */
    .logo-wrapper {
        text-align: left !important;
    }

    /* Позиционируем блок телефона абсолютно по центру внизу хедера */
    .mobile-header-contact {
        display: flex !important;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;
        
        position: absolute;
        bottom: 12px;
        left: 50%;
        transform: translateX(-50%);
        width: 100%;
        z-index: 10;
    }

    /* Текст "в Челябинске" */
    .mobile-city-label {
        font-size: 0.7rem;
        color: #64748b;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        font-weight: 600;
        line-height: 1;
    }

    /* КНОПКА ТЕЛЕФОНА ОДИН В ОДИН КАК "ЗАКАЗАТЬ ЧИСТКУ" */
    .mobile-phone-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        
        /* Ставим точный оранжевый цвет, как у кнопок заказа услуг */
        background-color: #f97316 !important; /* Насыщенный оранжевый */
        background: linear-gradient(135deg, #ff7e40 0%, #ff5200 100%) !important; /* Если там градиент */
        
        color: #ffffff !important;
        font-weight: 700;
        font-size: 0.9rem;
        text-decoration: none !important;
        
        /* Размеры и скругление один в один */
        padding: 10px 24px;
        border-radius: 8px;
        
        width: auto;
        line-height: 1.2;
        letter-spacing: 0.03em;
        transition: opacity 0.1s ease, transform 0.1s ease;
    }

    /* Эффект при нажатии пальцем (кнопка слегка реагирует на клик) */
    .mobile-phone-btn:active {
        opacity: 0.9 !important;
        transform: scale(0.98);
    }
}






/* Custom Modern CSS Variables & Styling for Instant Standalone Performance */
        :root {
            --primary: #0f172a; /* Slate 900 - Deep professional dark */
            --primary-light: #1e293b; /* Slate 800 */
            --accent-cool: #0ea5e9; /* Sky 500 - Ice/cooling blue */
            --accent-cool-glow: rgba(14, 165, 233, 0.15);
            --accent-warm: #f97316; /* Orange 500 - Warm/trust/CTA */
            --accent-warm-hover: #ea580c;
            --text-main: #334155; /* Slate 700 */
            --text-muted: #64748b; /* Slate 500 */
            --bg-light: #f8fafc; /* Slate 50 */
            --bg-card: #ffffff;
            --success: #10b981; /* Green - availability, success */
            --border-color: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
            --font-heading: 'Montserrat', sans-serif;
            --font-body: 'Open Sans', sans-serif;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* Reset & Base Styles */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-main);
            background-color: var(--bg-light);
            line-height: 1.6;
            overflow-x: hidden;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            color: var(--primary);
            font-weight: 700;
            line-height: 1.25;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }

        button, input, textarea, select {
            font-family: inherit;
            outline: none;
        }

        ul {
            list-style: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Layout Helpers */
        .section-padding {
            padding: 100px 0;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 60px 0;
            }
        }

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 60px auto;
        }

        .section-header h2 {
            font-size: 2.5rem;
            margin-bottom: 16px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: var(--accent-cool);
            border-radius: 2px;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 1.1rem;
        }

        /* Buttons & Badges */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 28px;
            font-weight: 700;
            font-family: var(--font-heading);
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-transform: uppercase;
            font-size: 0.875rem;
            letter-spacing: 0.5px;
        }

        .btn-primary {
            background-color: var(--accent-warm);
            color: white;
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
        }

        .btn-primary:hover {
            background-color: var(--accent-warm-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(249, 115, 22, 0.45);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-secondary:hover {
            background-color: var(--primary);
            color: white;
            transform: translateY(-2px);
        }

        .btn-cool {
            background-color: var(--accent-cool);
            color: white;
            box-shadow: 0 4px 14px rgba(14, 165, 233, 0.3);
        }

        .btn-cool:hover {
            background: #0284c7;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(14, 165, 233, 0.4);
        }

        .badge-installment {
            background: linear-gradient(135deg, #f59e0b, #d97706);
            color: white;
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 1px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
            animation: pulse-badge 2s infinite alternate;
        }

        @keyframes pulse-badge {
            0% { transform: scale(1); }
            100% { transform: scale(1.05); }
        }

        /* Header / Navigation */
        header {
            position: sticky;
            top: 0;
            background-color: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: var(--transition);
        }

        .header-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 80px;
        }

        .logo-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent-cool), #0284c7);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
        }

        .logo-text {
            display: flex;
            flex-direction: column;
        }

        .logo-title {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--primary);
            line-height: 1.1;
        }

        .logo-subtitle {
            font-size: 0.75rem;
            color: var(--accent-cool);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-links a {
            font-family: var(--font-heading);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-main);
            position: relative;
        }

        .nav-links a:hover, .nav-links a.active {
            color: var(--accent-cool);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-cool);
            transition: var(--transition);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .header-contact {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .contact-phone {
            display: flex;
            flex-direction: column;
            text-align: right;
        }

        .phone-number {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .phone-number:hover {
            color: var(--accent-cool);
        }

        .working-hours {
            font-size: 0.75rem;
            color: var(--success);
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 4px;
        }

        .pulse-dot {
            width: 7px;
            height: 7px;
            background-color: var(--success);
            border-radius: 50%;
            animation: pulse-dot-anim 1.5s infinite;
        }

        @keyframes pulse-dot-anim {
            0% { transform: scale(0.8); opacity: 0.5; }
            50% { transform: scale(1.2); opacity: 1; }
            100% { transform: scale(0.8); opacity: 0.5; }
        }

        /* Hamburger Menu */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px;
        }

        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2.5px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* Hero Section */
        .hero {
            position: relative;
            background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #f8fafc 100%);
            overflow: hidden;
            padding: 80px 0 100px 0;
            border-bottom: 1px solid var(--border-color);
        }

        /* Ambient cooling air flow effect */
        .hero::before {
            content: '';
            position: absolute;
            top: -10%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(14, 165, 233, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
            pointer-events: none;
            animation: drift 20s infinite alternate linear;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -5%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(6, 182, 212, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
            pointer-events: none;
            animation: drift 15s infinite alternate-reverse linear;
        }

        @keyframes drift {
            0% { transform: translate(0, 0) rotate(0deg); }
            100% { transform: translate(50px, 30px) rotate(10deg); }
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        /* Hero Left Side: Master Frame */
        .hero-master-card {
            position: relative;
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .master-intro-badge {
            align-self: flex-start;
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(14, 165, 233, 0.2);
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .master-title {
            font-size: 3rem;
            letter-spacing: -1px;
            line-height: 1.15;
        }

        .master-title span {
            color: var(--accent-cool);
            background: linear-gradient(to right, var(--accent-cool), #0284c7);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .master-tagline {
            font-size: 1.15rem;
            color: var(--text-main);
            max-width: 540px;
        }

        /* Premium Photo Frame */
        .master-visual-wrapper {
            display: flex;
            align-items: center;
            gap: 28px;
            margin-top: 16px;
        }

        .master-frame {
            position: relative;
            width: 220px;
            height: 270px;
            border-radius: var(--radius-lg);
            padding: 10px;
            background: white;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
        }

        /* Geometric decorative background for the photo */
        .master-frame::before {
            content: '';
            position: absolute;
            inset: -6px;
            border: 2px dashed var(--accent-cool);
            border-radius: calc(var(--radius-lg) + 6px);
            z-index: -1;
            opacity: 0.6;
        }

        .master-photo-container {
            width: 100%;
            height: 100%;
            border-radius: var(--radius-md);
            overflow: hidden;
            background-color: #f1f5f9;
            position: relative;
        }

        .master-photo {
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: top center;
        }

        /* Fallback graphic if image not loaded */
        .master-photo-placeholder {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, #0ea5e9 0%, #1e3a8a 100%);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: white;
            text-align: center;
            padding: 16px;
        }

        .master-photo-placeholder svg {
            width: 48px;
            height: 48px;
            margin-bottom: 12px;
            opacity: 0.9;
            animation: air-blow 3s ease-in-out infinite alternate;
        }

        @keyframes air-blow {
            0% { transform: translateY(0); }
            100% { transform: translateY(-8px); }
        }

        .master-photo-placeholder span {
            font-size: 0.85rem;
            font-weight: 700;
            font-family: var(--font-heading);
        }

        .master-photo-placeholder p {
            font-size: 0.7rem;
            opacity: 0.7;
        }

        /* Master Credentials Box (Next to the photo) */
        .master-credentials {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .credential-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }

        .credential-icon {
            background: rgba(14, 165, 233, 0.1);
            color: var(--accent-cool);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .credential-text h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 2px;
        }

        .credential-text p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Hero Right Side: Rapid Conversion Form */
        .hero-form-container {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(226, 232, 240, 0.8);
            position: relative;
        }

        /* Form top badge */
        .form-header-badge {
            position: absolute;
            top: -18px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: white;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 700;
            white-space: nowrap;
            box-shadow: 0 4px 12px rgba(15, 23, 42, 0.2);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .status-pulse {
            width: 8px;
            height: 8px;
            background-color: var(--success);
            border-radius: 50%;
            animation: pulse-dot-anim 1.2s infinite;
        }

        .form-heading {
            text-align: center;
            margin-bottom: 24px;
            margin-top: 8px;
        }

        .form-heading h3 {
            font-size: 1.35rem;
            margin-bottom: 6px;
        }

        .form-heading p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .form-group {
            margin-bottom: 18px;
            position: relative;
        }

        .form-group label {
            display: block;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .form-control {
            width: 100%;
            background-color: #f8fafc;
            border: 1px solid #cbd5e1;
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            color: var(--primary);
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--accent-cool);
            background-color: white;
            box-shadow: 0 0 0 3px var(--accent-cool-glow);
        }

        textarea.form-control {
            resize: none;
            height: 80px;
        }

        .form-submit-btn {
            width: 100%;
            margin-top: 10px;
            padding: 16px;
            font-size: 0.95rem;
        }

        .form-secure-note {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            margin-top: 14px;
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* Responsive adjustments for Hero */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 56px;
            }

            .hero-master-card {
                align-items: center;
                text-align: center;
            }

            .master-intro-badge {
                align-self: center;
            }

            .master-visual-wrapper {
                justify-content: center;
                width: 100%;
            }

            .hero-form-container {
                max-width: 540px;
                margin: 0 auto;
                width: 100%;
            }
        }

        @media (max-width: 560px) {
            .master-title {
                font-size: 2.2rem;
            }

            .master-visual-wrapper {
                flex-direction: column;
                gap: 20px;
            }

            .master-frame {
                width: 180px;
                height: 220px;
            }

            .hero-form-container {
                padding: 24px 16px;
            }
        }

        /* Trust Bar */
        .trust-bar {
            background-color: var(--primary);
            color: white;
            padding: 28px 0;
            border-bottom: 4px solid var(--accent-cool);
        }

        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .trust-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
        }

        .trust-number {
            font-size: 2.2rem;
            font-weight: 800;
            font-family: var(--font-heading);
            color: var(--accent-cool);
            line-height: 1;
        }

        .trust-text {
            font-size: 0.85rem;
            font-weight: 600;
            opacity: 0.85;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        @media (max-width: 768px) {
            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
        }

        /* Services Section & Installment Block */
        .services-section {
            background-color: var(--bg-light);
        }

        /* Special Installment Hero Banner inside Services */
        .installment-banner {
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            border-radius: var(--radius-lg);
            padding: 40px;
            color: white;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 36px;
            margin-bottom: 60px;
            border: 1px solid rgba(14, 165, 233, 0.2);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .installment-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(14, 165, 233, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
            pointer-events: none;
        }

        .installment-content {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 700px;
        }

        .installment-title-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .installment-title-row h3 {
            color: white;
            font-size: 1.8rem;
        }

        .installment-desc {
            font-size: 0.95rem;
            opacity: 0.85;
            line-height: 1.5;
        }

        .installment-advantages {
            display: flex;
            gap: 24px;
            margin-top: 8px;
            flex-wrap: wrap;
        }

        .inst-adv-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: 600;
        }

        .inst-adv-item svg {
            color: var(--accent-cool);
        }

        .installment-cta {
            flex-shrink: 0;
        }

        @media (max-width: 900px) {
            .installment-banner {
                flex-direction: column;
                text-align: center;
                padding: 32px 20px;
            }

            .installment-title-row {
                justify-content: center;
            }

            .installment-advantages {
                justify-content: center;
            }

            .installment-cta {
                width: 100%;
            }

            .installment-cta button {
                width: 100%;
            }
        }

        /* Services Grid */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background-color: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(14, 165, 233, 0.4);
        }

        .service-img-box {
            height: 200px;
            background-color: #e2e8f0;
            position: relative;
            overflow: hidden;
        }

        .service-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .service-card:hover .service-img {
            transform: scale(1.08);
        }

        .service-img-placeholder {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, #334155 0%, #0f172a 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
        }

        .service-img-placeholder svg {
            opacity: 0.35;
            width: 64px;
            height: 64px;
            transition: var(--transition);
        }

        .service-card:hover .service-img-placeholder svg {
            transform: scale(1.1) rotate(5deg);
            opacity: 0.5;
        }

        .service-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background-color: var(--accent-cool);
            color: white;
            padding: 6px 12px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 700;
            z-index: 5;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .service-card-body {
            padding: 28px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .service-title {
            font-size: 1.25rem;
            margin-bottom: 12px;
        }

        .service-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-grow: 1;
            line-height: 1.5;
        }

        .service-price-row {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            border-top: 1px solid var(--border-color);
            padding-top: 18px;
            margin-bottom: 20px;
        }

        .service-price-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 600;
        }

        .service-price-value {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            font-family: var(--font-heading);
        }

        .service-price-value span {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
        }

        .service-btn {
            width: 100%;
            font-size: 0.8rem;
            padding: 12px;
        }

        /* Service Installment note inside the card */
        .service-installment-note {
            font-size: 0.75rem;
            color: #d97706;
            font-weight: 700;
            text-align: center;
            margin-top: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 4px;
        }

        @media (max-width: 1024px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }

        @media (max-width: 650px) {
            .services-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Interactive Troubleshooting & Cost Calculator */
        .calc-section {
            background-color: white;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .calc-box {
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 40px;
            box-shadow: var(--shadow-sm);
        }

        .calc-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }

        .calc-steps h3 {
            font-size: 1.5rem;
            margin-bottom: 8px;
        }

        .calc-subtitle {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 24px;
        }

        /* Grid of Symptoms */
        .symptoms-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .symptom-card {
            background: white;
            border: 2px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            text-align: center;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
        }

        .symptom-card:hover {
            border-color: var(--accent-cool);
            transform: translateY(-2px);
        }

        .symptom-card.active {
            border-color: var(--accent-cool);
            background-color: rgba(14, 165, 233, 0.04);
            box-shadow: 0 4px 12px rgba(14, 165, 233, 0.1);
        }

        .symptom-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .symptom-card.active .symptom-icon {
            background-color: var(--accent-cool);
            color: white;
        }

        .symptom-card:hover .symptom-icon {
            color: var(--accent-cool);
        }

        .symptom-title {
            font-size: 0.85rem;
            font-weight: 700;
            font-family: var(--font-heading);
            line-height: 1.3;
        }

        .symptom-checkbox {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            border: 2px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            font-size: 10px;
            color: white;
        }

        .symptom-card.active .symptom-checkbox {
            border-color: var(--accent-cool);
            background-color: var(--accent-cool);
        }

        /* Calc Right Side - Live Calculation Output */
        .calc-result-pane {
            background-color: white;
            border-radius: var(--radius-md);
            padding: 32px;
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            box-shadow: var(--shadow-sm);
        }

        .result-header {
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 16px;
            margin-bottom: 20px;
        }

        .result-title {
            font-size: 1.1rem;
            margin-bottom: 4px;
        }

        .result-symptom-name {
            font-weight: 700;
            color: var(--accent-cool);
        }

        .price-range-box {
            background-color: var(--bg-light);
            border-radius: var(--radius-sm);
            padding: 16px;
            text-align: center;
            margin-bottom: 20px;
        }

        .price-range-label {
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--text-muted);
            font-weight: 700;
            margin-bottom: 4px;
        }

        .price-range-val {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            font-family: var(--font-heading);
        }

        .price-range-includes {
            font-size: 0.75rem;
            color: var(--success);
            font-weight: 600;
            margin-top: 4px;
        }

        .calc-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .calc-form h4 {
            font-size: 0.9rem;
            margin-bottom: 2px;
        }

        .calc-submit-btn {
            width: 100%;
            margin-top: 8px;
        }

        .calc-installment-promo {
            font-size: 0.75rem;
            text-align: center;
            color: #d97706;
            font-weight: 700;
            margin-top: 12px;
            background-color: #fffbeb;
            padding: 8px;
            border-radius: var(--radius-sm);
            border: 1px dashed #fcd34d;
        }

        @media (max-width: 960px) {
            .calc-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 600px) {
            .symptoms-grid {
                grid-template-columns: 1fr;
            }

            .calc-box {
                padding: 24px 16px;
            }
        }

        /* Advantages Section */
        .advantages-section {
            background-color: var(--bg-light);
        }

        .adv-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .adv-card {
            background-color: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 36px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .adv-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(14, 165, 233, 0.3);
        }

        .adv-header {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .adv-icon-box {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background-color: rgba(14, 165, 233, 0.1);
            color: var(--accent-cool);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .adv-title {
            font-size: 1.15rem;
            font-weight: 700;
        }

        .adv-text {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .adv-comparison {
            margin-top: auto;
            border-top: 1px dashed var(--border-color);
            padding-top: 16px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .comparison-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .comp-label {
            color: var(--text-muted);
        }

        .comp-val-master {
            color: var(--success);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .comp-val-company {
            color: #ef4444;
            text-decoration: line-through;
            opacity: 0.65;
        }

        @media (max-width: 960px) {
            .adv-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* Pure CSS & JS Interactive Before/After Filter Comparison Slider */
        .comparison-section {
            background-color: white;
        }

        .slider-container {
            max-width: 750px;
            margin: 0 auto;
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 4px solid white;
            aspect-ratio: 16/10;
        }

        .slider-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            pointer-events: none;
        }

        .slider-before, .slider-after {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
        }

        .slider-before {
            z-index: 1;
        }

        .slider-after {
            z-index: 2;
            /* Clean crop achieved with JS clip-path */
            clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
        }

        /* The fallback representation if images aren't loaded */
        .slider-placeholder-content {
            position: absolute;
            bottom: 20px;
            background-color: rgba(15, 23, 42, 0.85);
            color: white;
            padding: 8px 16px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 700;
            z-index: 5;
            font-family: var(--font-heading);
            letter-spacing: 0.5px;
        }

        .label-before {
            left: 20px;
        }

        .label-after {
            right: 20px;
        }

        /* Slider control overlay range input */
        .slider-range {
            position: absolute;
            z-index: 10;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: transparent;
            opacity: 0;
            cursor: ew-resize;
            -webkit-appearance: none;
        }

        /* Custom slider line and handle */
        .slider-handle-bar {
            position: absolute;
            z-index: 5;
            top: 0;
            bottom: 0;
            left: 50%;
            width: 4px;
            background-color: white;
            transform: translateX(-50%);
            pointer-events: none;
            box-shadow: 0 0 10px rgba(0,0,0,0.3);
        }

        .slider-handle-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 48px;
            height: 48px;
            background-color: var(--accent-cool);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 10px rgba(14, 165, 233, 0.5);
            border: 3px solid white;
            font-weight: bold;
        }

        .slider-instructions {
            text-align: center;
            margin-top: 24px;
            font-size: 0.9rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
        }

        /* Reviews Block */
        .reviews-section {
            background-color: var(--bg-light);
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background-color: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            gap: 18px;
            position: relative;
            transition: var(--transition);
        }

        .review-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(14, 165, 233, 0.25);
        }

        .review-quote {
            color: var(--accent-cool);
            opacity: 0.15;
            position: absolute;
            top: 20px;
            right: 20px;
        }

        .stars-row {
            display: flex;
            gap: 4px;
            color: #f59e0b;
        }

        .review-text {
            font-size: 0.9rem;
            line-height: 1.6;
            color: var(--text-main);
            flex-grow: 1;
        }

        .review-client-row {
            display: flex;
            align-items: center;
            gap: 16px;
            border-top: 1px solid var(--border-color);
            padding-top: 18px;
        }

        .client-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: var(--bg-light);
            overflow: hidden;
            flex-shrink: 0;
        }

        .client-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .client-avatar-fallback {
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #cbd5e1 0%, #94a3b8 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 700;
            font-size: 1.1rem;
        }

        .client-info h4 {
            font-size: 0.95rem;
            margin-bottom: 2px;
        }

        .client-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .review-tag {
            background-color: var(--bg-light);
            color: var(--accent-cool);
            padding: 4px 10px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 700;
            align-self: flex-start;
        }

        @media (max-width: 1024px) {
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }

        @media (max-width: 700px) {
            .reviews-grid {
                grid-template-columns: 1fr;
            }
        }

        /* FAQ Accordions */
        .faq-section {
            background-color: white;
        }

        .faq-container {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--accent-cool);
        }

        .faq-header {
            padding: 20px 24px;
            background-color: white;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            user-select: none;
            transition: var(--transition);
        }

        .faq-item.active .faq-header {
            background-color: rgba(14, 165, 233, 0.02);
        }

        .faq-question {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            padding-right: 20px;
        }

        .faq-icon {
            font-size: 1.5rem;
            color: var(--text-muted);
            transition: var(--transition);
            line-height: 1;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--accent-cool);
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
        }

        .faq-item.active .faq-body {
            max-height: 1000px;
            transition: max-height 0.5s cubic-bezier(1, 0, 1, 0);
        }

        .faq-content {
            padding: 0 24px 20px 24px;
            font-size: 0.95rem;
            color: var(--text-main);
            border-top: 1px solid transparent;
            line-height: 1.6;
        }

        .faq-item.active .faq-content {
            border-color: #f1f5f9;
        }

        /* Contacts Section & Map */
        .contacts-section {
            background-color: var(--bg-light);
            position: relative;
        }

        .contacts-grid {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 48px;
        }

        .contacts-info-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 40px;
            box-shadow: var(--shadow-md);
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .contacts-title-block h3 {
            font-size: 1.8rem;
            margin-bottom: 8px;
        }

        .contacts-title-block p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .contacts-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .contact-detail-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .detail-icon {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background-color: rgba(14, 165, 233, 0.1);
            color: var(--accent-cool);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .detail-text h4 {
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            color: var(--text-muted);
            margin-bottom: 4px;
        }

        .detail-text p, .detail-text a {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
        }

        .detail-text a:hover {
            color: var(--accent-cool);
        }

        /* Direct Messengers Block */
        .messengers-cta {
            background-color: #f8fafc;
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px dashed var(--border-color);
        }

        .messengers-cta h4 {
            font-size: 0.95rem;
            margin-bottom: 12px;
            text-align: center;
        }

        .messenger-buttons {
            display: flex;
            gap: 12px;
        }

        .msg-btn {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.85rem;
            color: white;
            transition: var(--transition);
        }

        .msg-btn-whatsapp {
            background-color: #25d366;
        }

        .msg-btn-whatsapp:hover {
            background-color: #128c7e;
            transform: translateY(-2px);
        }

        .msg-btn-telegram {
            background-color: #0088cc;
        }

        .msg-btn-telegram:hover {
            background-color: #006699;
            transform: translateY(-2px);
        }

        /* Right Side Map / Embed Container */
        .map-container {
            width: 100%;
            height: 100%;
            min-height: 450px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-md);
            position: relative;
            background-color: #e2e8f0;
        }

        .map-container iframe {
            width: 100%;
            height: 100%;
            border: none;
        }

        /* Fallback Map Graphic */
        .map-placeholder {
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: radial-gradient(circle, #f1f5f9 0%, #cbd5e1 100%);
            color: var(--primary);
            text-align: center;
            padding: 24px;
        }

        .map-placeholder svg {
            width: 64px;
            height: 64px;
            color: var(--accent-cool);
            margin-bottom: 16px;
            filter: drop-shadow(0 4px 6px rgba(14, 165, 233, 0.2));
        }

        .map-placeholder h4 {
            font-size: 1.15rem;
            margin-bottom: 4px;
        }

        .map-placeholder p {
            font-size: 0.85rem;
            color: var(--text-muted);
            max-width: 320px;
        }

        @media (max-width: 960px) {
            .contacts-grid {
                grid-template-columns: 1fr;
            }

            .map-container {
                min-height: 350px;
            }
        }

        /* Footer */
        footer {
            background-color: var(--primary);
            color: white;
            padding: 60px 0 30px 0;
            border-top: 4px solid var(--accent-cool);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 1fr;
            gap: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 40px;
            margin-bottom: 30px;
        }

        .footer-about {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .footer-about p {
            font-size: 0.85rem;
            opacity: 0.75;
            line-height: 1.6;
        }

        .footer-links h4, .footer-contact-info h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: white;
            position: relative;
        }

        .footer-links h4::after, .footer-contact-info h4::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 30px;
            height: 2px;
            background-color: var(--accent-cool);
        }

        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            font-size: 0.85rem;
            opacity: 0.75;
        }

        .footer-links a:hover {
            opacity: 1;
            color: var(--accent-cool);
            padding-left: 4px;
        }

        .footer-contact-info ul {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .footer-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.85rem;
        }

        .footer-contact-item svg {
            color: var(--accent-cool);
            flex-shrink: 0;
        }

        .footer-contact-item p {
            opacity: 0.8;
        }

        .footer-contact-item a {
            font-weight: 700;
        }

        .footer-contact-item a:hover {
            color: var(--accent-cool);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.75rem;
            opacity: 0.6;
            flex-wrap: wrap;
            gap: 16px;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* Modal Overlay & Popups */
        .modal-overlay {
            position: fixed;
            inset: 0;
            background-color: rgba(15, 23, 42, 0.7);
            backdrop-filter: blur(4px);
            z-index: 2000;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
            padding: 16px;
        }

        .modal-overlay.active {
            opacity: 1;
            pointer-events: all;
        }

        .modal-box {
            background-color: white;
            border-radius: var(--radius-lg);
            padding: 40px;
            width: 100%;
            max-width: 460px;
            box-shadow: var(--shadow-lg);
            position: relative;
            transform: scale(0.9);
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .modal-overlay.active .modal-box {
            transform: scale(1);
        }

        .modal-close-btn {
            position: absolute;
            top: 16px;
            right: 16px;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .modal-close-btn:hover {
            color: var(--primary);
        }

        .modal-title {
            text-align: center;
            margin-bottom: 10px;
            font-size: 1.4rem;
        }

        .modal-desc {
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 24px;
        }

        /* Mobile Navigation Overlay */
        @media (max-width: 900px) {
            nav {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background-color: white;
                flex-direction: column;
                justify-content: flex-start;
                padding: 40px 24px;
                gap: 40px;
                transition: var(--transition);
                z-index: 999;
                box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
                border-top: 1px solid var(--border-color);
            }

            nav.active {
                left: 0;
            }

            .nav-links {
                flex-direction: column;
                gap: 24px;
                width: 100%;
                align-items: center;
            }

            .nav-links a {
                font-size: 1.1rem;
            }

            .header-contact {
                flex-direction: column;
                width: 100%;
                align-items: center;
                gap: 16px;
            }

            .contact-phone {
                text-align: center;
            }

            .menu-toggle {
                display: flex;
            }

            /* Active menu icon morph */
            .menu-toggle.active span:nth-child(1) {
                transform: translateY(8.5px) rotate(45deg);
            }
            .menu-toggle.active span:nth-child(2) {
                opacity: 0;
            }
            .menu-toggle.active span:nth-child(3) {
                transform: translateY(-8.5px) rotate(-45deg);
            }
        }