/* ================================
   MD-Med Redesign - Styles
   ================================ */

/* CSS Variables */
:root {
    /* Colors */
    --primary-dark: #0f2942;
    --primary: #1e4d7b;
    --primary-light: #4a90c2;
    --primary-lighter: #e8f4fc;
    --accent: #22c55e;
    --accent-hover: #16a34a;
    --background: #f8fafc;
    --surface: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --shadow: rgba(15, 41, 66, 0.08);
    --shadow-strong: rgba(15, 41, 66, 0.15);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    --gradient-hero: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
}

/* Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    overflow-x: hidden;
    width: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text);
    background-color: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    width: 100%;
    position: relative;
}

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

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

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 14px rgba(30, 77, 123, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(30, 77, 123, 0.45);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-size-base);
}

.btn-sm {
    padding: var(--space-xs) var(--space-md);
    font-size: var(--font-size-xs);
}

.btn-block {
    width: 100%;
}

/* Section Header */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
}

.section-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--primary-lighter);
    color: var(--primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--primary-dark);
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
}

/* ================================
   Header
   ================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    transition: all var(--transition-base);
}

.header.scrolled {
    box-shadow: 0 4px 20px var(--shadow);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-dark);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-lg);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary);
}

.nav-cta {
    margin-left: var(--space-md);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--primary-dark);
    transition: all var(--transition-base);
}

/* ================================
   Hero Section
   ================================ */
.hero {
    position: relative;
    padding: calc(80px + var(--space-4xl)) 0 var(--space-4xl);
    background: var(--gradient-hero);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(74, 144, 194, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(34, 197, 94, 0.15) 0%, transparent 50%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: rgba(255, 255, 255, 0.15);
    color: white;
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-full);
    backdrop-filter: blur(10px);
    margin-bottom: var(--space-lg);
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    color: white;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
}

.gradient-text {
    background: linear-gradient(135deg, #ffffff 0%, var(--primary-lighter) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--space-xl);
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.hero .btn-primary {
    background: white;
    color: var(--primary);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.hero .btn-primary:hover {
    background: var(--background);
}

.hero .btn-outline {
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
}

.hero .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

.hero-stats {
    display: flex;
    gap: var(--space-2xl);
}

.stat {
    text-align: left;
}

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: white;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
}

.hero-image {
    position: relative;
}

.hero-image-wrapper {
    position: relative;
}

.hero-img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--radius-2xl);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.hero-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary-dark);
    animation: float 3s ease-in-out infinite;
}

.hero-card i {
    color: var(--accent);
    font-size: var(--font-size-lg);
}

.hero-card-1 {
    top: 20px;
    left: -30px;
}

.hero-card-2 {
    bottom: 40px;
    right: -30px;
    animation-delay: 1.5s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
}

.hero-wave svg {
    display: block;
    width: 100%;
    height: 80px;
}

/* ================================
   About Section
   ================================ */
.about {
    padding: var(--space-4xl) 0;
    background: var(--background);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--radius-2xl);
    box-shadow: 0 20px 40px var(--shadow-strong);
}

.about-experience {
    position: absolute;
    bottom: -30px;
    right: -30px;
    padding: var(--space-xl);
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    text-align: center;
    color: white;
    box-shadow: 0 15px 30px rgba(30, 77, 123, 0.4);
}

.experience-number {
    display: block;
    font-size: var(--font-size-4xl);
    font-weight: 800;
}

.experience-text {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.about-features {
    display: grid;
    gap: var(--space-xl);
}

.feature {
    display: flex;
    gap: var(--space-lg);
}

.feature-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--primary-lighter);
    color: var(--primary);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-xl);
}

.feature-text h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: var(--space-xs);
}

.feature-text p {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* ================================
   Services Section
   ================================ */
.services {
    padding: var(--space-4xl) 0;
    background: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.service-card {
    padding: var(--space-xl);
    background: var(--background);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px var(--shadow);
    border-color: transparent;
}

.service-card-featured {
    background: var(--gradient-primary);
    border: none;
    color: white;
}

.service-card-featured .service-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.service-card-featured .service-title {
    color: white;
}

.service-card-featured .service-description {
    color: rgba(255, 255, 255, 0.85);
}

.service-card-featured .service-features li {
    color: rgba(255, 255, 255, 0.9);
}

.service-card-featured .service-features i {
    color: white;
}

.service-card-featured .btn {
    background: white;
    color: var(--primary);
}

.service-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--primary-lighter);
    color: var(--primary);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-lg);
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: var(--space-sm);
}

.service-description {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
}

.service-features {
    margin-bottom: var(--space-lg);
}

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.service-features i {
    color: var(--accent);
}

/* ================================
   Pricing Section
   ================================ */
.pricing {
    padding: var(--space-4xl) 0;
    background: var(--background);
}

.pricing-search {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.search-wrapper {
    position: relative;
    max-width: 400px;
    margin: 0 auto;
}

.search-wrapper i {
    position: absolute;
    left: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-input {
    width: 100%;
    padding: var(--space-md) var(--space-md) var(--space-md) var(--space-2xl);
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-lighter);
}

.pricing-filters {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-sm) var(--space-lg);
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.pricing-table-wrapper {
    overflow-x: auto;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: 0 10px 40px var(--shadow);
}

.pricing-table {
    width: 100%;
    border-collapse: collapse;
}

.pricing-table th,
.pricing-table td {
    padding: var(--space-lg);
    text-align: left;
}

.pricing-table th {
    background: var(--primary-dark);
    color: white;
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-table th:first-child {
    border-radius: var(--radius-xl) 0 0 0;
}

.pricing-table th:last-child {
    border-radius: 0 var(--radius-xl) 0 0;
}

.pricing-table tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background var(--transition-fast);
}

.pricing-table tbody tr:hover {
    background: var(--primary-lighter);
}

.pricing-table tbody tr:last-child {
    border-bottom: none;
}

.service-name {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-weight: 500;
}

.service-name i {
    color: var(--primary);
}

.category-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
}

.category-badge.basic {
    background: #dcfce7;
    color: #166534;
}

.category-badge.specialized {
    background: #dbeafe;
    color: #1e40af;
}

.category-badge.lab {
    background: #fef3c7;
    color: #92400e;
}

.price {
    font-weight: 700;
    color: var(--primary-dark);
}

.price-firm {
    color: var(--accent);
}

.pricing-note {
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-top: var(--space-xl);
}

/* ================================
   Schedule Section
   ================================ */
.schedule {
    padding: var(--space-4xl) 0;
    background: white;
}

.schedule-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
}

.schedule-card {
    background: var(--gradient-primary);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    color: white;
}

.schedule-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.schedule-header i {
    font-size: var(--font-size-2xl);
}

.schedule-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.schedule-table {
    display: grid;
    gap: var(--space-md);
}

.schedule-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
}

.schedule-row.weekend {
    opacity: 0.6;
}

.day {
    font-weight: 500;
}

.hours {
    font-weight: 700;
}

.schedule-info {
    display: grid;
    gap: var(--space-lg);
}

.info-card {
    display: flex;
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: var(--background);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    transition: all var(--transition-base);
}

.info-card:hover {
    border-color: var(--primary);
    box-shadow: 0 10px 30px var(--shadow);
}

.info-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--primary-lighter);
    color: var(--primary);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-xl);
}

.info-content h4 {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: var(--space-xs);
}

.info-content p {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.info-link {
    font-weight: 600;
    color: var(--primary);
}

.info-link:hover {
    color: var(--primary-light);
}

.info-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: var(--accent);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
}

/* ================================
   FAQ Section
   ================================ */
.faq {
    padding: var(--space-4xl) 0;
    background: var(--background);
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    gap: var(--space-md);
}

.faq-item {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: var(--primary-light);
}

.faq-item.active {
    border-color: var(--primary);
    box-shadow: 0 10px 30px var(--shadow);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg) var(--space-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--primary-dark);
    text-align: left;
    transition: all var(--transition-fast);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question i {
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--space-xl) var(--space-lg);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    line-height: 1.7;
}

/* ================================
   Contact Section
   ================================ */
.contact {
    padding: var(--space-4xl) 0;
    background: white;
}

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

.contact-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.contact-card {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--background);
    border-radius: var(--radius-lg);
}

/* ... existing styles ... */
.contact-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--primary-lighter);
    color: var(--primary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-lg);
}

.contact-details h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: var(--space-xs);
}

.contact-details p {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.contact-details a:hover {
    color: var(--primary);
}

.contact-map {
    grid-column: 1 / -1;
    margin-top: var(--space-md);
    height: 400px;
}

.contact-map iframe {
    height: 100%;
}

.contact-form-wrapper {
    background: var(--background);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
}

.contact-form {
    display: grid;
    gap: var(--space-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: var(--space-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-lighter);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.form-checkbox input {
    width: auto;
    margin-top: 4px;
}

.form-checkbox label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    font-weight: 400;
}

.form-checkbox a {
    color: var(--primary);
    text-decoration: underline;
}

/* ================================
   Footer
   ================================ */
.footer {
    background: var(--primary-dark);
    color: white;
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand .logo {
    color: white;
    margin-bottom: var(--space-md);
}

.footer-brand .logo-icon {
    background: rgba(255, 255, 255, 0.2);
}

.footer-brand p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--space-lg);
}

.footer-social {
    display: flex;
    gap: var(--space-md);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--primary);
}

.footer-links h4 {
    font-size: var(--font-size-sm);
    font-weight: 700;
    margin-bottom: var(--space-lg);
}

.footer-links ul {
    display: grid;
    gap: var(--space-sm);
}

.footer-links a {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
}

/* ================================
   Back to Top
   ================================ */
.back-to-top {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(30, 77, 123, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: var(--z-dropdown);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* ================================
   Responsive Design
   ================================ */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        order: 1;
    }

    .hero-image {
        order: 2;
    }

    .hero-description {
        margin: 0 auto var(--space-xl);
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-img {
        height: 400px;
    }

    .hero-card-1 {
        left: 20px;
    }

    .hero-card-2 {
        right: 20px;
    }

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

    .about-experience {
        right: 20px;
        bottom: -20px;
    }

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

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

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

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: white;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding: var(--space-xl);
        gap: var(--space-lg);
        transform: translateX(100%);
        transition: transform var(--transition-base);
        z-index: 999;
        overflow-y: auto;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-cta {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }

    .hero-card {
        display: none;
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-social {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }

    .hero {
        padding-top: calc(80px + var(--space-2xl));
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn-lg {
        width: 100%;
    }

    .pricing-table th,
    .pricing-table td {
        padding: var(--space-md);
        font-size: var(--font-size-sm);
    }

    .category-badge {
        display: none;
    }
}