/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #1e293b;
    background-color: #ffffff;
    overflow-x: hidden;
}

.code {
    font-family: 'Source Code Pro', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
}

/* Color System */
:root {
    /* Primary Colors */
    --primary-50: #f8fafc;
    --primary-100: #f1f5f9;
    --primary-200: #e2e8f0;
    --primary-300: #cbd5e1;
    --primary-400: #94a3b8;
    --primary-500: #64748b;
    --primary-600: #475569;
    --primary-700: #334155;
    --primary-800: #1e293b;
    --primary-900: #0f172a;

    /* Accent Colors */
    --accent-cyan-500: #0ea5e9;
    --accent-cyan-600: #0284c7;
    --accent-green-500: #10b981;
    --accent-green-600: #059669;
    --accent-orange-500: #f97316;
    --accent-orange-600: #ea580c;

    /* Status Colors */
    --success-500: #22c55e;
    --warning-500: #eab308;
    --error-500: #ef4444;

    /* Spacing System */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;

    /* Typography */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-medium: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--primary-900);
}

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

p {
    font-size: var(--text-base);
    line-height: 1.5;
    color: var(--primary-600);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-medium);
}

.nav {
    padding: var(--space-4) 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
}

.nav-logo {
    width: 32px;
    height: 32px;
    filter: invert(1);
}

.nav-title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: white;
}

.nav-menu {
    display: flex;
    gap: var(--space-8);
}

.nav-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-cyan-500);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-cyan-500);
    border-radius: 1px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

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

.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(7px, -6px);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-base);
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-cyan-500);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--accent-cyan-600);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--accent-cyan-500);
    border: 2px solid var(--accent-cyan-500);
}

.btn-secondary:hover {
    background: var(--accent-cyan-500);
    color: white;
}

.btn-outline {
    background: transparent;
    color: var(--primary-600);
    border: 2px solid var(--primary-300);
}

.btn-outline:hover {
    background: var(--primary-900);
    color: white;
    border-color: var(--primary-900);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-900) 0%, var(--primary-800) 50%, var(--accent-cyan-600) 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(14, 165, 233, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(249, 115, 22, 0.2) 0%, transparent 50%);
    animation: gradientShift 8s ease-in-out infinite;
}

@keyframes gradientShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-24) 0 var(--space-16);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-2xl);
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--text-sm);
    font-weight: 500;
    margin-bottom: var(--space-6);
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: white;
    margin-bottom: var(--space-4);
    background: linear-gradient(45deg, white, var(--accent-cyan-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--text-2xl);
    color: var(--accent-cyan-500);
    font-weight: 500;
    margin-bottom: var(--space-6);
}

.hero-description {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-16);
}

.hero-stats {
    display: flex;
    gap: var(--space-8);
    justify-content: center;
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--accent-cyan-500);
    display: block;
}

.stat-label {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Sections */
.page-header {
    background: linear-gradient(135deg, var(--primary-900) 0%, var(--primary-800) 100%);
    padding: var(--space-20) 0 var(--space-16);
    margin-top: 80px;
    text-align: center;
}

.page-title {
    font-size: var(--text-4xl);
    font-weight: 700;
    color: white;
    margin-bottom: var(--space-4);
}

.page-subtitle {
    font-size: var(--text-xl);
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--primary-900);
    margin-bottom: var(--space-4);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--primary-600);
    max-width: 600px;
    margin: 0 auto;
}

.section-footer {
    text-align: center;
    margin-top: var(--space-12);
}

/* Featured Repos Section */
.featured-repos {
    padding: var(--space-24) 0;
    background: var(--primary-50);
}

.repos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-8);
}

.repo-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-medium);
    border: 1px solid var(--primary-200);
    position: relative;
    overflow: hidden;
}

.repo-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-cyan-500), var(--accent-green-500));
    transform: scaleX(0);
    transition: transform var(--transition-medium);
}

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

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

.repo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent-cyan-500), var(--accent-green-500));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
    color: white;
}

.repo-name {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--primary-900);
    margin-bottom: var(--space-3);
}

.repo-description {
    color: var(--primary-600);
    margin-bottom: var(--space-6);
    line-height: 1.5;
}

.repo-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.repo-language {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--primary-600);
}

.language-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.repo-stars {
    font-size: var(--text-sm);
    color: var(--primary-600);
}

.repo-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--accent-cyan-500);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.repo-link:hover {
    color: var(--accent-cyan-600);
}

/* Filters Section */
.filters-section {
    background: white;
    padding: var(--space-8) 0;
    border-bottom: 1px solid var(--primary-200);
    position: sticky;
    top: 80px;
    z-index: 100;
}

.filters {
    display: flex;
    gap: var(--space-6);
    align-items: center;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    flex: 1;
    min-width: 300px;
}

.search-box svg {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-400);
}

.search-input {
    width: 100%;
    padding: var(--space-3) var(--space-4) var(--space-3) var(--space-12);
    border: 2px solid var(--primary-200);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    transition: border-color var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-cyan-500);
}

.filter-buttons {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-2) var(--space-4);
    background: transparent;
    border: 2px solid var(--primary-200);
    border-radius: var(--radius-lg);
    color: var(--primary-600);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent-cyan-500);
    color: white;
    border-color: var(--accent-cyan-500);
}

/* Repos Section */
.repos-section {
    padding: var(--space-16) 0;
    background: var(--primary-50);
}

.load-more-container {
    text-align: center;
    margin-top: var(--space-12);
}

/* Repository Detail Styles */
.repo-header {
    background: white;
    padding: var(--space-12) 0 var(--space-8);
    margin-top: 80px;
    border-bottom: 1px solid var(--primary-200);
}

.repo-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--primary-500);
    margin-bottom: var(--space-6);
}

.repo-breadcrumb a {
    color: var(--accent-cyan-500);
    text-decoration: none;
}

.repo-breadcrumb a:hover {
    text-decoration: underline;
}

.repo-title-section {
    display: flex;
    align-items: flex-start;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.repo-icon-large {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--accent-cyan-500), var(--accent-green-500));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.repo-title-content {
    flex: 1;
    min-width: 300px;
}

.repo-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--primary-900);
    margin-bottom: var(--space-3);
}

.repo-description {
    font-size: var(--text-lg);
    color: var(--primary-600);
    margin-bottom: var(--space-4);
}

.repo-meta-badges {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.badge {
    padding: var(--space-1) var(--space-3);
    background: var(--primary-100);
    color: var(--primary-700);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 500;
}

.badge-stars {
    background: var(--accent-green-500);
    color: white;
}

.badge-forks {
    background: var(--accent-cyan-500);
    color: white;
}

.repo-actions {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

/* Repository Content */
.repo-content {
    padding: var(--space-16) 0;
    background: var(--primary-50);
}

.repo-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--space-8);
}

.repo-main {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.content-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--primary-200);
}

.card-header {
    padding: var(--space-6) var(--space-8);
    border-bottom: 1px solid var(--primary-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--primary-900);
}

.card-description {
    color: var(--primary-600);
    margin-top: var(--space-2);
}

.readme-content {
    padding: var(--space-8);
    line-height: 1.7;
}

.readme-content h1 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-4);
}

.readme-content h2 {
    font-size: var(--text-xl);
    margin: var(--space-6) 0 var(--space-3);
}

.readme-content p {
    margin-bottom: var(--space-4);
}

.readme-content ul, .readme-content ol {
    margin-left: var(--space-6);
    margin-bottom: var(--space-4);
}

.readme-content li {
    margin-bottom: var(--space-2);
}

.code-preview {
    position: relative;
}

.code-language {
    padding: var(--space-1) var(--space-3);
    background: var(--accent-cyan-500);
    color: white;
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.code-preview pre {
    background: var(--primary-900);
    color: #e2e8f0;
    padding: var(--space-6);
    margin: 0;
    overflow-x: auto;
    font-family: 'Source Code Pro', monospace;
    font-size: var(--text-sm);
    line-height: 1.6;
}

.copy-btn {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* Sidebar */
.repo-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.sidebar-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--primary-200);
}

.sidebar-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--primary-900);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--primary-200);
}

.repo-stats {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--primary-600);
}

.stat-value {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--primary-900);
}

.contributors-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.contributor-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.contributor-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.contributor-info {
    flex: 1;
}

.contributor-name {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--primary-900);
}

.contributor-commits {
    font-size: var(--text-xs);
    color: var(--primary-500);
}

.topics-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.topic-tag {
    padding: var(--space-1) var(--space-3);
    background: var(--accent-cyan-500);
    color: white;
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    font-weight: 500;
    text-decoration: none;
    transition: background-color var(--transition-fast);
}

.topic-tag:hover {
    background: var(--accent-cyan-600);
}

/* Team Styles */
.team-section {
    padding: var(--space-16) 0;
    background: white;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
}

.team-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--primary-200);
    text-align: center;
    transition: all var(--transition-medium);
}

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

.team-avatar {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto var(--space-6);
}

.avatar-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--primary-100);
}

.avatar-status {
    position: absolute;
    bottom: 8px;
    right: 8px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 3px solid white;
}

.avatar-status.online {
    background: var(--success-500);
}

.avatar-status.away {
    background: var(--warning-500);
}

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

.team-name {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--primary-900);
    margin-bottom: var(--space-2);
}

.team-role {
    font-size: var(--text-base);
    color: var(--accent-cyan-500);
    font-weight: 500;
    margin-bottom: var(--space-4);
}

.team-description {
    font-size: var(--text-sm);
    color: var(--primary-600);
    line-height: 1.6;
    margin-bottom: var(--space-6);
}

.team-skills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    justify-content: center;
    margin-bottom: var(--space-6);
}

.skill-tag {
    padding: var(--space-1) var(--space-3);
    background: var(--primary-100);
    color: var(--primary-700);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    font-weight: 500;
}

.team-social {
    display: flex;
    gap: var(--space-3);
    justify-content: center;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-100);
    color: var(--primary-600);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--accent-cyan-500);
    color: white;
    transform: translateY(-2px);
}

/* Join Team CTA */
.join-team-cta {
    background: linear-gradient(135deg, var(--primary-900), var(--accent-cyan-600));
    padding: var(--space-20) 0;
    text-align: center;
}

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

.cta-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: white;
    margin-bottom: var(--space-4);
}

.cta-description {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-8);
}

/* Contact Styles */
.contact-section {
    padding: var(--space-16) 0;
    background: white;
}

.contact-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-12);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--primary-700);
}

.form-input,
.form-select,
.form-textarea {
    padding: var(--space-3) var(--space-4);
    border: 2px solid var(--primary-200);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    transition: border-color var(--transition-fast);
    font-family: inherit;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-cyan-500);
}

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

.form-error {
    color: var(--error-500);
    font-size: var(--text-sm);
    display: none;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.form-checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-cyan-500);
}

.checkbox-label {
    font-size: var(--text-sm);
    color: var(--primary-600);
    cursor: pointer;
}

.btn-loading {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.animate-spin {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-cyan-500);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.contact-details {
    flex: 1;
}

.contact-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--primary-900);
    margin-bottom: var(--space-1);
}

.contact-value {
    font-size: var(--text-sm);
    color: var(--primary-600);
}

.contact-value a {
    color: var(--accent-cyan-500);
    text-decoration: none;
}

.contact-value a:hover {
    text-decoration: underline;
}

.quick-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.quick-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--primary-50);
    border-radius: var(--radius-lg);
    color: var(--primary-700);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.quick-link:hover {
    background: var(--accent-cyan-500);
    color: white;
}

/* FAQ Styles */
.faq-section {
    padding: var(--space-16) 0;
    background: var(--primary-50);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--primary-200);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: var(--space-6) var(--space-8);
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--primary-900);
    transition: background-color var(--transition-fast);
}

.faq-question:hover {
    background: var(--primary-50);
}

.faq-icon {
    transition: transform var(--transition-fast);
}

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

.faq-answer {
    padding: 0 var(--space-8) var(--space-6);
    color: var(--primary-600);
    line-height: 1.6;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
    animation: fadeInDown 0.3s ease-out;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Footer */
.footer {
    background: var(--primary-900);
    color: white;
    padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.footer-logo {
    width: 32px;
    height: 32px;
    filter: invert(1);
}

.footer-title {
    font-size: var(--text-xl);
    font-weight: 600;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-heading {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-4);
    color: white;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-cyan-500);
}

.social-links {
    display: flex;
    gap: var(--space-3);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--primary-800);
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .repo-layout {
        grid-template-columns: 1fr;
    }
    
    .contact-layout {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
        text-align: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary-900);
        flex-direction: column;
        padding: var(--space-6);
        gap: var(--space-4);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-medium);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        gap: var(--space-6);
    }
    
    .repos-grid {
        grid-template-columns: 1fr;
    }
    
    .repo-title-section {
        flex-direction: column;
        text-align: center;
    }
    
    .repo-actions {
        justify-content: center;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box {
        min-width: auto;
    }
    
    .filter-buttons {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-3);
    }
    
    .hero-content {
        padding: var(--space-20) 0 var(--space-12);
    }
    
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .page-title {
        font-size: var(--text-3xl);
    }
    
    .section-title {
        font-size: var(--text-2xl);
    }
    
    .repo-card,
    .team-card,
    .content-card,
    .sidebar-card {
        padding: var(--space-6);
    }
}

/* Animation Utilities */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

/* Loading States */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

/* Success/Error Messages */
.message {
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    font-weight: 500;
}

.message-success {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success-500);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.message-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-500);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

.hidden { display: none; }
.visible { display: block; }

.mt-4 { margin-top: var(--space-4); }
.mb-4 { margin-bottom: var(--space-4); }
.mr-4 { margin-right: var(--space-4); }
.ml-4 { margin-left: var(--space-4); }

.pt-4 { padding-top: var(--space-4); }
.pb-4 { padding-bottom: var(--space-4); }
.pr-4 { padding-right: var(--space-4); }
.pl-4 { padding-left: var(--space-4); }