/* ============================================
   ADVANCE MEDICAL LABORATORY - CUSTOM STYLES
   Design System: Alpine Frost + Medical Precision
   ============================================ */

/* CSS Variables */
:root {
    /* Alpine Frost Color Palette - Medical/Healthcare */
    --primary-dark: #0A1929;
    --primary: #2E5090;
    --primary-light: #4A7FC1;
    --accent: #00D4AA;
    --accent-light: #7FFFD4;
    
    /* Neutrals */
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #E3EDF7;
    --gray-200: #A8C4E0;
    --gray-300: #8FA3B0;
    --gray-400: #6B7B8A;
    --gray-500: #4A5568;
    --gray-600: #2D3748;
    --gray-700: #1A202C;
    --gray-800: #0D1117;
    
    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(10, 25, 41, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(10, 25, 41, 0.1), 0 2px 4px -1px rgba(10, 25, 41, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(10, 25, 41, 0.1), 0 4px 6px -2px rgba(10, 25, 41, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(10, 25, 41, 0.1), 0 10px 10px -5px rgba(10, 25, 41, 0.04);
    --shadow-glow: 0 0 40px rgba(0, 212, 170, 0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--gray-600);
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--primary-dark);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
    margin-bottom: var(--space-sm);
}

/* Section Headers */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-2xl);
}

.section-tag {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: var(--space-sm);
    position: relative;
}

.section-tag::after {
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background: var(--accent);
    margin: var(--space-xs) auto 0;
}

.section-title {
    margin-bottom: var(--space-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-400);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

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

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

/* ============================================
   NAVIGATION
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-sm) 0;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
    padding: var(--space-xs) 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    transition: transform var(--transition-base);
}

.logo:hover .logo-icon {
    transform: rotate(15deg) scale(1.05);
}

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

.logo-main {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-dark);
    line-height: 1;
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--gray-400);
    letter-spacing: 0.05em;
}

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

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-600);
    position: relative;
    padding: var(--space-xs) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--transition-base);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

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

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 50%, var(--white) 100%);
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-particle {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 100%);
    opacity: 0.1;
    animation: float 20s infinite ease-in-out;
}

.hero-particle:nth-child(1) {
    width: 400px;
    height: 400px;
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.hero-particle:nth-child(2) {
    width: 300px;
    height: 300px;
    bottom: -50px;
    left: -50px;
    animation-delay: -5s;
}

.hero-particle:nth-child(3) {
    width: 200px;
    height: 200px;
    top: 50%;
    right: 20%;
    animation-delay: -10s;
}

.hero-particle:nth-child(4) {
    width: 150px;
    height: 150px;
    bottom: 30%;
    left: 10%;
    animation-delay: -15s;
}

.hero-particle:nth-child(5) {
    width: 100px;
    height: 100px;
    top: 20%;
    left: 30%;
    animation-delay: -7s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(30px, -30px) rotate(5deg); }
    50% { transform: translate(-20px, 20px) rotate(-5deg); }
    75% { transform: translate(20px, 10px) rotate(3deg); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    background: rgba(0, 212, 170, 0.1);
    color: var(--accent);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    animation: fadeInUp 0.6s ease;
}

.hero-title {
    margin-bottom: var(--space-md);
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-title .highlight {
    display: block;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--gray-400);
    max-width: 600px;
    margin-bottom: var(--space-xl);
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-stats {
    display: flex;
    gap: var(--space-2xl);
    animation: fadeInUp 0.6s ease 0.4s both;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    color: var(--gray-400);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scrollPulse 2s infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.5; transform: scaleY(0.8); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   SERVICES SECTION
   ============================================ */

.services {
    padding: var(--space-3xl) 0;
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.service-card {
    background: var(--white);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--primary);
    margin-bottom: var(--space-md);
    transition: all var(--transition-base);
}

.service-card:hover .service-icon {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    transform: scale(1.1);
}

.service-title {
    margin-bottom: var(--space-sm);
    font-size: 1.25rem;
}

.service-description {
    color: var(--gray-400);
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9375rem;
}

.service-link i {
    transition: transform var(--transition-base);
}

.service-link:hover i {
    transform: translateX(4px);
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about {
    padding: var(--space-3xl) 0;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
}

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

.about-content .section-tag {
    margin-bottom: var(--space-sm);
}

.about-content .section-title {
    margin-bottom: var(--space-lg);
}

.about-text {
    font-size: 1.0625rem;
    color: var(--gray-500);
    margin-bottom: var(--space-md);
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

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

.feature-icon {
    width: 32px;
    height: 32px;
    background: rgba(0, 212, 170, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 0.875rem;
    flex-shrink: 0;
}

.feature-text h4 {
    font-size: 1rem;
    margin-bottom: 2px;
    color: var(--primary-dark);
}

.feature-text p {
    font-size: 0.875rem;
    color: var(--gray-400);
    margin: 0;
}

.about-visual {
    position: relative;
}

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

.about-image {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-xl);
    aspect-ratio: 4/5;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.image-placeholder {
    font-size: 8rem;
    color: rgba(255, 255, 255, 0.3);
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--white);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    text-align: center;
}

.exp-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}

.exp-text {
    font-size: 0.875rem;
    color: var(--gray-400);
    font-weight: 500;
}

/* ============================================
   TESTS SECTION
   ============================================ */

.tests {
    padding: var(--space-3xl) 0;
    background: var(--white);
}

.tests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.test-card {
    background: var(--white);
    border: 2px solid var(--gray-100);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    position: relative;
    transition: all var(--transition-base);
}

.test-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.test-card.featured {
    border-color: var(--accent);
    background: linear-gradient(135deg, var(--white) 0%, var(--gray-50) 100%);
    transform: scale(1.02);
}

.test-card.featured:hover {
    transform: scale(1.02) translateY(-4px);
}

.test-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    color: var(--primary-dark);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.test-name {
    text-align: center;
    margin-bottom: var(--space-md);
    font-size: 1.375rem;
}

.test-price {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.test-price .currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary);
    vertical-align: top;
}

.test-price .amount {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}

.test-features {
    margin-bottom: var(--space-xl);
}

.test-features li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) 0;
    color: var(--gray-500);
    font-size: 0.9375rem;
}

.test-features li i {
    color: var(--accent);
    font-size: 0.875rem;
}

/* ============================================
   WHY US SECTION
   ============================================ */

.why-us {
    padding: var(--space-3xl) 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: var(--white);
}

.why-us-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.why-us .section-tag {
    color: var(--accent-light);
}

.why-us .section-tag::after {
    background: var(--accent-light);
}

.why-us .section-title {
    color: var(--white);
}

.why-us-text {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-xl);
}

.why-us-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.why-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: all var(--transition-base);
}

.why-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}

.why-icon {
    width: 48px;
    height: 48px;
    background: var(--accent);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-dark);
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.why-card h4 {
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
    font-family: var(--font-body);
    font-weight: 600;
}

.why-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    margin: 0;
}

.trust-badges {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: all var(--transition-base);
}

.trust-badge:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(8px);
}

.trust-badge i {
    font-size: 2rem;
    color: var(--accent);
}

.trust-badge span {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--white);
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact {
    padding: var(--space-3xl) 0;
    background: var(--gray-50);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-3xl);
    align-items: start;
}

.contact-info .section-tag {
    margin-bottom: var(--space-sm);
}

.contact-info .section-title {
    margin-bottom: var(--space-md);
}

.contact-text {
    font-size: 1.0625rem;
    color: var(--gray-500);
    margin-bottom: var(--space-xl);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.contact-item {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.125rem;
    flex-shrink: 0;
}

.contact-text-content h4 {
    font-size: 1.0625rem;
    margin-bottom: 4px;
    color: var(--primary-dark);
    font-family: var(--font-body);
    font-weight: 600;
}

.contact-text-content p {
    color: var(--gray-400);
    font-size: 0.9375rem;
    margin: 0;
    line-height: 1.6;
}

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

.form-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-lg);
    color: var(--primary-dark);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-600);
    margin-bottom: var(--space-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--gray-100);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    color: var(--gray-600);
    transition: all var(--transition-fast);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* ============================================
   FOOTER
   ============================================ */

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.footer-logo .logo-main {
    color: var(--white);
}

.footer-logo .logo-sub {
    color: rgba(255, 255, 255, 0.6);
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.social-links {
    display: flex;
    gap: var(--space-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1rem;
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--accent);
    color: var(--primary-dark);
    transform: translateY(-3px);
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--white);
    font-family: var(--font-body);
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    transition: all var(--transition-fast);
}

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

.footer-contact p {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    margin-bottom: var(--space-sm);
}

.footer-contact i {
    color: var(--accent);
    margin-top: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    margin: 0;
}

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

.footer-legal a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

.footer-legal a:hover {
    color: var(--accent);
}

/* ============================================
   MODAL
   ============================================ */

.modal {
    position: fixed;
    inset: 0;
    background: rgba(10, 25, 41, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    max-width: 400px;
    transform: scale(0.9);
    transition: transform var(--transition-base);
}

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

.modal-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    font-size: 2.5rem;
    color: var(--primary-dark);
}

.modal-content h3 {
    margin-bottom: var(--space-sm);
    color: var(--primary-dark);
}

.modal-content p {
    color: var(--gray-400);
    margin-bottom: var(--space-lg);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .about-grid,
    .why-us-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .about-visual {
        order: -1;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: var(--space-2xl);
        box-shadow: var(--shadow-xl);
        transition: right var(--transition-base);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .about-features,
    .why-us-cards {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .experience-badge {
        right: 10px;
        bottom: -10px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-sm);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .test-price .amount {
        font-size: 2.5rem;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}