/* Fonts */
@font-face {
    font-family: 'Inter';
    src: url('../fonts/inter-regular.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Inter';
    src: url('../fonts/inter-semibold.woff2') format('woff2');
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Inter';
    src: url('../fonts/inter-bold.woff2') format('woff2');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

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

/* CSS Variables */
:root {
    --primary-color: #4CCACC;
    --secondary-color: #2C3E50;
    --accent-color: #34495E;
    --success-color: #27AE60;
    --warning-color: #F39C12;
    --error-color: #E74C3C;
    
    --text-primary: #2C3E50;
    --text-secondary: #7F8C8D;
    --text-light: #BDC3C7;
    
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --bg-accent: #E8F8F7;
    
    --border-color: #E1E8ED;
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.12);
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --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: 2rem;
    --font-size-4xl: 2.5rem;
    
    --line-height-tight: 1.2;
    --line-height-base: 1.5;
    --line-height-relaxed: 1.6;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;
    
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

/* Base Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
}

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

a:hover {
    opacity: 0.8;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background-color: #3BBABE;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

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

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

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

.btn-outline:hover {
    background-color: var(--bg-secondary);
    border-color: var(--primary-color);
}

.btn-play {
    background-color: transparent;
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
}

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

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

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

/* Header */
.header {
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-light);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-md);
    min-height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo {
    width: 32px;
    height: 32px;
}

.brand-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.nav-menu {
    display: flex;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    list-style: none;
}

.nav-link {
    color: var(--text-primary);
    font-weight: 500;
    position: relative;
    padding: var(--spacing-sm) 0;
    transition: var(--transition-fast);
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
}

.nav-contact {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.hamburger-line {
    width: 24px;
    height: 3px;
    background-color: var(--text-primary);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 120px 0 var(--spacing-3xl);
    background: linear-gradient(135deg, var(--bg-accent) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

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

.hero-title {
    font-size: clamp(var(--font-size-3xl), 5vw, 3.5rem);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    line-height: var(--line-height-tight);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: var(--line-height-relaxed);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-visual {
    position: relative;
}

.hero-illustration {
    width: 100%;
    max-width: 400px;
    height: auto;
    margin: 0 auto;
    display: block;
}

.stats-card {
    position: absolute;
    bottom: 20px;
    left: -20px;
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-medium);
    min-width: 200px;
}

.stats-card h3 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.stat-item {
    margin-bottom: var(--spacing-md);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    display: block;
}

.stat-bar {
    background-color: var(--bg-secondary);
    border-radius: 10px;
    height: 8px;
    position: relative;
    overflow: hidden;
}

.stat-fill {
    background-color: var(--primary-color);
    height: 100%;
    border-radius: 10px;
    transition: var(--transition);
}

.stat-value {
    position: absolute;
    right: 0;
    top: -20px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary-color);
}

.team-badge {
    position: absolute;
    top: 20px;
    right: -20px;
    background: var(--secondary-color);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    text-align: center;
}

.team-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.team-avatars {
    display: flex;
    gap: -var(--spacing-xs);
}

.avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--primary-color);
    border: 2px solid white;
    margin-left: -4px;
}

.avatar:first-child {
    margin-left: 0;
}

/* Features Section */
.features {
    padding: var(--spacing-3xl) 0;
    background-color: var(--bg-primary);
}

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

.features-illustration {
    width: 100%;
    max-width: 350px;
    height: auto;
}

.section-title {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
}

.feature-list {
    margin-bottom: var(--spacing-2xl);
}

.feature-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    align-items: flex-start;
}

.feature-icon {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    flex-shrink: 0;
}

.feature-content h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.feature-content p {
    margin-bottom: 0;
}

.expert-profile {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
}

.expert-avatar {
    flex-shrink: 0;
}

.expert-info h4 {
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.expert-info p {
    margin-bottom: 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* Gallery Section */
.gallery {
    padding: var(--spacing-3xl) 0;
    background-color: var(--bg-secondary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.gallery-item {
    background-color: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.gallery-item svg {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
}

/* Services Section */
.services {
    padding: var(--spacing-3xl) 0;
    background-color: var(--bg-primary);
}

.section-header {
    margin-bottom: var(--spacing-3xl);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.service-card {
    background-color: white;
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-light);
    text-align: center;
    position: relative;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
}

.service-icon {
    background-color: var(--primary-color);
    color: white;
    width: 80px;
    height: 80px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.service-number {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.service-title {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.service-description {
    margin-bottom: var(--spacing-lg);
}

.service-link {
    color: var(--primary-color);
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.service-link:hover {
    text-decoration: underline;
}

/* Testimonials Section */
.testimonials {
    padding: var(--spacing-3xl) 0;
    background-color: var(--bg-secondary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.testimonial-card {
    background-color: white;
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-light);
}

.testimonial-card blockquote {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.testimonial-card blockquote::before {
    content: '"';
    font-size: 2em;
    color: var(--primary-color);
    line-height: 0;
}

.testimonial-card blockquote::after {
    content: '"';
    font-size: 2em;
    color: var(--primary-color);
    line-height: 0;
}

.testimonial-card cite {
    font-style: normal;
}

.testimonial-card cite strong {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.testimonial-card cite span {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* CTA Section */
.cta {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #3BBABE 100%);
    color: white;
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    color: white;
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-lg);
}

.cta-description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-2xl);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
}

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

.cta .btn-primary:hover {
    background-color: var(--bg-secondary);
}

.cta .btn-outline {
    color: white;
    border-color: white;
}

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

/* Footer */
.footer {
    background-color: var(--secondary-color);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: var(--font-size-lg);
}

.footer-logo {
    width: 32px;
    height: 32px;
}

.footer-nav {
    display: flex;
    gap: var(--spacing-xl);
}

.footer-nav a {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

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

.footer-legal {
    text-align: center;
}

.footer-legal p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.8);
}

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

/* Mobile Styles */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: white;
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--spacing-2xl);
        transform: translateX(-100%);
        transition: var(--transition);
        box-shadow: var(--shadow-medium);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-list {
        flex-direction: column;
        gap: var(--spacing-2xl);
        align-items: flex-start;
        width: 100%;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active .hamburger-line:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active .hamburger-line:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .hamburger-line:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .nav-contact {
        display: none;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .features-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero {
        padding: 100px 0 var(--spacing-2xl);
    }
    
    .stats-card {
        position: static;
        margin-top: var(--spacing-xl);
    }
    
    .team-badge {
        position: static;
        margin-bottom: var(--spacing-xl);
    }
}

/* Utility Classes */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.no-scroll {
    overflow: hidden;
}

/* Focus Styles */
.btn:focus,
.nav-link:focus,
.nav-toggle:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

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

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}