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

:root {
    /* Light Theme Colors */
    --primary-color: #6366f1;
    --secondary-color: #f59e0b;
    --accent-color: #ec4899;
    --text-primary: #1f2937;
    --text-secondary: #262121cf;
    --text-muted: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --border-color: #e5e7eb;
    --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);
}

/* Dark Theme Colors */
[data-theme="dark"] {
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-muted: #9ca3af;
    --bg-primary: #000611;
    --bg-secondary: oklch(12% .03 280);
    --bg-tertiary: #020202;
    --border-color: #374151;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.3), 0 8px 10px -6px rgb(0 0 0 / 0.3);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: 2.25rem;
    color: var(--text-primary);
}

h3 {
    font-size: 1.875rem;
    color: var(--text-primary);
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* Header */
.header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.8);
}

[data-theme="dark"] .header {
    background-color: rgba(17, 24, 39, 0.8);
}


.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
    font-family: "Arial";
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

/* Hero Section */
:root[data-theme="dark"] {
  --hero-overlay: linear-gradient(
    to right,
    rgba(0, 0, 0, 0.6),
    transparent 20%,
    transparent 80%,
    rgba(0, 0, 0, 0.6)
  );
  --hero-brightness: brightness(0.3);
}

:root[data-theme="light"] {
  --hero-overlay: linear-gradient(
    to right,
    rgba(255, 255, 255, 0.774),
    transparent 20%,
    transparent 80%,
    rgba(255, 255, 255, 0.815)
  );
  --hero-brightness: brightness(1); /* full bright */
}

.hero {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  /* background-image: var(--hero-overlay), */
    /* url("https://images.ctfassets.net/s5n2t79q9icq/7jxoKHHVuiWkSz7bRRI7Lp/f776b2389f086bd660ccc77c1ce05498/Vvvbbsi3774hfiaoolfb_1920x1040.jpg?q=80"); */
  background-size: cover;
  background-position: center;
  filter: var(--hero-brightness);
  transition: background-image 0.5s ease, filter 0.5s ease;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23000" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    width: 80%;
    margin: 0 auto;
    padding: 0 1rem;
    position: relative;
    z-index: 1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.hero-description {
    font-size: 1.225rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: #4f46e5;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    transform: translateY(-2px);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Stats Section */
.stats {
    background: var(--bg-secondary);
    padding: 4rem 0;
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Content Sections */
.section {
    padding: 4rem 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--bg-primary);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.card-content {
    padding: 1.5rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.card-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
    max-height: 150px;
    overflow: hidden;
    font-size: 0.85rem;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.card-tag {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    width: fit-content;
    margin-bottom: 10px;
}

/* Search */
.search-container {
    max-width: 600px;
    margin: 0 auto 3rem;
    position: relative;
    margin-bottom: 20px;
}

.search-input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

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

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

/* Filter Buttons */
.filter-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    border-radius: 9999px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

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

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 1rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-section h3 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: var(--bg-primary);
    border-radius: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
}

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

.footer-bottom {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}


.ta.table {
  width: 100%;
  border-collapse: collapse;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

.table th, .table td {
  padding: 0.75rem 1rem;
  text-align: left;
  vertical-align: middle;
  background-color: transparent;
  border: none;
}

.table th {
  font-weight: 600;
  border-bottom: 2px solid #ddd; /* only underline the header */
}

.table tr + tr td {
  border-top: 1px solid #eee; /* subtle row divider */
}

.table img {
  display: block;
  margin: 0 auto;
}

    .card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

.card {
  display: flex;
  flex-direction: column;
  /* background: #fff; */
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  overflow: hidden;
}

.card-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.card-content {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background-color: var(--bg-primary);
}

.card-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: #555;
}
.table th, .table td {
  padding: 0.75rem 1rem;
  text-align: left;
  vertical-align: middle;
}

.table img {
  display: block;
  margin: 0 auto;
}
.table-scroll {
  max-height: 800px; /* about 10 rows */
  overflow-y: auto;
  overflow-x: hidden;
}

/* Hide scrollbar for Chrome, Safari and Opera */
.table-scroll::-webkit-scrollbar {
  width: 6px; /* thin scrollbar */
}
.table-scroll::-webkit-scrollbar-track {
  background: transparent;
}
.table-scroll::-webkit-scrollbar-thumb {
  background: #ccc;
  border-radius: 10px;
}
.table-scroll::-webkit-scrollbar-thumb:hover {
  background: #999;
}

/* Hide scrollbar for Firefox */
.table-scroll {
  scrollbar-width: thin;
  scrollbar-color: #ccc transparent;
}

@media (max-width: 600px) {
  .card-grid {
    grid-template-columns: 1fr;
  }

  .table {
    font-size: 0.85rem;
  }

  .table th, .table td {
    padding: 0.5rem;
    font-size: 0.65rem;
  }
}


/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    .hero {
        padding: 4rem 0;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
    }
    .table th, .table td {
        padding: 0.5rem;
        font-size: 0.65rem;
    }
}

@media (max-width: 480px) {
    .stats-container {
        grid-template-columns: 1fr;
    }
    
    .filter-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-btn {
        width: 100%;
        max-width: 200px;
        text-align: center;
    }
    .table th, .table td {
        padding: 0.5rem;
        font-size: 0.55rem;
    }
}

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

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

/* Lazy Loading */
.lazy-image {
    /* opacity: 0;*/
    object-fit: cover; 
    transition: opacity 0.3s ease;
}

.lazy-image.loaded {
    opacity: 1;
}

/* Video Styles */
.video-container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    overflow: hidden;
    border-radius: 0.75rem;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-duration {
    position: absolute;
    bottom: 0.5rem;
    right: 0.5rem;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 500;
}

/* Blog Content Styles */
.blog-content {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.blog-content h2,
.blog-content h3,
.blog-content h4 {
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.blog-content p {
    margin-bottom: 1.5rem;
}

.blog-content img {
    width: 100%;
    height: auto;
    border-radius: 0.5rem;
    margin: 1.5rem 0;
}

.blog-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 1rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: var(--text-secondary);
}

.blog-content code {
    background: var(--bg-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-family: 'Fira Code', monospace;
    font-size: 0.875rem;
}

.blog-content pre {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 0.5rem;
    overflow-x: auto;
    margin: 1.5rem 0;
}

.blog-content pre code {
    background: none;
    padding: 0;
}

/* Related Articles */
.related-articles {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.related-articles h3 {
    margin-bottom: 2rem;
    text-align: center;
}

/* Loading States */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.spinner {
    width: 2rem;
    height: 2rem;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Error States */
.error-message {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: 1rem;
    border-radius: 0.5rem;
    text-align: center;
    margin: 2rem 0;
}

[data-theme="dark"] .error-message {
    background: #1f1f1f;
    border-color: #dc2626;
    color: #fca5a5;
}

/* Success States */
.success-message {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #16a34a;
    padding: 1rem;
    border-radius: 0.5rem;
    text-align: center;
    margin: 2rem 0;
}

[data-theme="dark"] .success-message {
    background: #1f1f1f;
    border-color: #16a34a;
    color: #86efac;
}


/* Desktop default */
.nav-menu {
    display: flex;
    gap: 2rem;
}

/* Hide hamburger on desktop */
.menu-toggle {
    display: none;
    font-size: 2rem;
    background: none;
    border: none;
    cursor: pointer;
}

/* Mobile styles */
@media (max-width: 768px) {
.menu-toggle {
    display: block;
    color: var(--primary-color);
}

.nav-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 60px;
    right: 20px;
    background: var(--bg-primary);
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.nav-menu.active {
    display: flex;
}
}