/* ========================================
   CSS Variables
   ======================================== */
:root {
    --white: #ffffff;
    --black: #000000;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --accent-light: #818cf8;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 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;
    
    --line-height-tight: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.7;
    
    --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-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* ========================================
   Reset & Base Styles
   ======================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--gray-800);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

input,
button,
textarea,
select {
    font: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
    overflow-wrap: break-word;
}

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

.header {
    position: sticky;
    top: 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    z-index: 100;
    padding: var(--spacing-md) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
}

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

.nav-link {
    text-decoration: none;
    color: var(--gray-600);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--accent);
}

.nav-link[aria-current="page"] {
    color: var(--accent);
}

.nav-link[aria-current="page"]::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
}

.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-3xl) 0 var(--spacing-md);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.footer-info {
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-relaxed);
}

.footer-nav {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-link {
    color: var(--gray-300);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-link:hover,
.footer-link:focus {
    color: var(--white);
}

/* ========================================
   Page Components
   ======================================== */
.page-header {
    text-align: center;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
}

.page-header h1 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

.page-header p {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Button Components
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--accent);
    color: var(--white);
    text-decoration: none;
    border: none;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn:hover,
.btn:focus {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background: var(--gray-200);
    color: var(--gray-800);
    transform: translateY(-2px);
}

/* ========================================
   Feature Cards
   ======================================== */
.features {
    padding: var(--spacing-3xl) 0;
}

.features h2 {
    text-align: center;
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

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

.feature-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-2xl);
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

.feature-description {
    color: var(--gray-600);
    line-height: var(--line-height-relaxed);
}

/* ========================================
   Timeline Components
   ======================================== */
.timeline-section {
    padding: var(--spacing-3xl) 0;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gray-300);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-3xl);
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-slow);
}

.timeline-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.timeline-item:nth-child(odd) .timeline-content {
    padding-right: calc(50% + 2rem);
}

.timeline-item:nth-child(even) .timeline-content {
    padding-left: calc(50% + 2rem);
}

.timeline-year {
    position: absolute;
    left: 50%;
    top: 0;
    background: var(--accent);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: var(--font-size-sm);
    transform: translateX(-50%);
    z-index: 2;
}

.timeline-content {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    margin-top: var(--spacing-lg);
}

.timeline-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

.timeline-content img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
}

.timeline-content p {
    color: var(--gray-600);
    line-height: var(--line-height-relaxed);
}

/* ========================================
   Spotlight Components
   ======================================== */
.future-content {
    padding: var(--spacing-3xl) 0;
}

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

.spotlight-section h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--gray-900);
    text-align: center;
}

.spotlight-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.spotlight-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.spotlight-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.spotlight-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.spotlight-content {
    padding: var(--spacing-lg);
}

.spotlight-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

.spotlight-content p {
    color: var(--gray-600);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-md);
}

.spotlight-content p:last-of-type {
    margin-bottom: var(--spacing-lg);
}

.spotlight-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.spotlight-link:hover,
.spotlight-link:focus {
    color: var(--accent-hover);
}

/* ========================================
   Contact Components
   ======================================== */
.contact-section {
    padding: var(--spacing-3xl) 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

.contact-form {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-700);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.error-message {
    display: block;
    color: var(--error);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

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

.info-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.info-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

.info-card p {
    color: var(--gray-600);
    line-height: var(--line-height-relaxed);
}

.map-container {
    margin-top: var(--spacing-3xl);
}

.map-container h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
    text-align: center;
}

.map-container iframe {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

/* ========================================
   Legal Content Components
   ======================================== */
.legal-content {
    padding: var(--spacing-3xl) 0;
}

.legal-document {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    padding: var(--spacing-3xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.legal-document h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-top: var(--spacing-3xl);
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
}

.legal-document h2:first-child {
    margin-top: 0;
}

.legal-document h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

.legal-document p {
    color: var(--gray-600);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-lg);
}

.legal-document ul {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-lg);
}

.legal-document li {
    color: var(--gray-600);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-sm);
}

.legal-document a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.legal-document a:hover,
.legal-document a:focus {
    color: var(--accent-hover);
    text-decoration: underline;
}

/* ========================================
   Cookie Table
   ======================================== */
.cookie-table {
    margin: var(--spacing-xl) 0;
    overflow-x: auto;
}

.cookie-table table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.cookie-table th,
.cookie-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.cookie-table th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-900);
}

.cookie-table td {
    color: var(--gray-600);
    line-height: var(--line-height-relaxed);
}

.cookie-table tr:last-child td {
    border-bottom: none;
}

/* ========================================
   Modal Components
   ======================================== */
.modal,
.cookie-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-md);
}

.modal-content,
.cookie-modal-content {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.cookie-modal-content {
    max-width: 600px;
}

.modal-content h3,
.cookie-modal-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

.modal-content p,
.cookie-modal-content p {
    color: var(--gray-600);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-lg);
}

.cookie-options {
    margin: var(--spacing-xl) 0;
}

.cookie-option {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-md);
}

.cookie-option label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--gray-900);
    cursor: pointer;
}

.cookie-option input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.cookie-option input[type="checkbox"]:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.cookie-option p {
    margin-top: var(--spacing-sm);
    margin-bottom: 0;
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.cookie-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* ========================================
   Utility Classes
   ======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-slow);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

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

.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;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .timeline::before {
        left: 2rem;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        padding-left: 4rem;
        padding-right: var(--spacing-lg);
    }
    
    .timeline-year {
        left: 2rem;
    }
    
    .spotlight-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 640px) {
    .page-header h1 {
        font-size: var(--font-size-3xl);
    }
    
    .page-header p {
        font-size: var(--font-size-base);
    }
    
    .nav-menu {
        gap: var(--spacing-md);
    }
    
    .nav-link {
        font-size: var(--font-size-sm);
    }
    
    .features h2 {
        font-size: var(--font-size-3xl);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 1rem;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        padding-left: 2.5rem;
        padding-right: var(--spacing-md);
    }
    
    .timeline-year {
        left: 1rem;
        font-size: var(--font-size-xs);
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .spotlight-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-nav {
        gap: var(--spacing-sm);
    }
    
    .footer-link {
        font-size: var(--font-size-xs);
    }
    
    .cookie-buttons {
        flex-direction: column;
    }
    
    .cookie-buttons .btn,
    .cookie-buttons .btn-secondary {
        width: 100%;
    }
    
    .legal-document {
        padding: var(--spacing-xl);
    }
}

/* ========================================
   Focus Styles & Accessibility
   ======================================== */
:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--accent);
    color: var(--white);
    padding: 8px;
    text-decoration: none;
    border-radius: var(--border-radius-md);
    z-index: 9999;
}

.skip-link:focus {
    top: 6px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --gray-600: #000000;
        --gray-700: #000000;
        --gray-800: #000000;
        --gray-900: #000000;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Print styles */
@media print {
    .header,
    .footer,
    .cookie-modal,
    .modal {
        display: none !important;
    }
    
    body {
        background: var(--white) !important;
        color: var(--black) !important;
    }
    
    .page-header {
        background: var(--white) !important;
    }
    
    .feature-card,
    .spotlight-card,
    .info-card,
    .legal-document {
        box-shadow: none !important;
        border: 1px solid var(--gray-300) !important;
    }
}