/* assets/css/style.css - Futuristic Modern Tech & Science Theme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --bg-dark: #090d16;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(56, 189, 248, 0.3);
  
  --primary: #38bdf8;
  --primary-glow: rgba(56, 189, 248, 0.25);
  --secondary: #818cf8;
  --accent-pink: #f472b6;
  --accent-green: #34d399;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --font-heading: 'Outfit', -apple-system, sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(56, 189, 248, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 60%, rgba(129, 140, 248, 0.08) 0%, transparent 45%);
  background-attachment: fixed;
}

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

a:hover {
  color: #7dd3fc;
}

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

/* Layout Containers */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  max-width: 840px;
}

/* Glass Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9, 13, 22, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1rem 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--text-main);
  letter-spacing: -0.02em;
  flex-wrap: wrap;
}

.brand-logo span.badge {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-domain {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
  padding: 0.2rem 0.6rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.45rem 0.7rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.mobile-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--primary);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
}

.btn-admin {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #090d16 !important;
  font-weight: 700;
  border-radius: var(--radius-full);
  padding: 0.45rem 1.1rem;
  box-shadow: 0 0 15px var(--primary-glow);
}

.btn-admin:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 25px rgba(56, 189, 248, 0.4);
}

/* Hero Section */
.hero-section {
  padding: 4rem 0 3rem;
  text-align: center;
  position: relative;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-full);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  font-family: var(--font-mono);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  background: linear-gradient(180deg, #ffffff 0%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-bio {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 2rem;
}

/* Category Filter Bar */
.category-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3rem;
}

.cat-chip {
  padding: 0.5rem 1.1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.cat-chip:hover, .cat-chip.active {
  color: var(--text-main);
  border-color: var(--primary);
  background: rgba(56, 189, 248, 0.12);
  transform: translateY(-2px);
}

/* Posts Grid */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

.post-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.5), 0 0 20px var(--primary-glow);
}

.card-img-wrap {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
  background: #0f172a;
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.post-card:hover .card-img-wrap img {
  transform: scale(1.05);
}

.card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
  font-family: var(--font-mono);
  flex-wrap: wrap;
}

.card-cat-badge {
  padding: 0.15rem 0.6rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.75rem;
  color: #fff;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.75rem;
}

.card-title a {
  color: var(--text-main);
}

.card-title a:hover {
  color: var(--primary);
}

.card-excerpt {
  color: var(--text-muted);
  font-size: 0.925rem;
  line-height: 1.55;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
  font-size: 0.825rem;
  color: var(--text-dim);
}

/* Single Post Page */
.post-header {
  padding: 3rem 0 2rem;
  text-align: center;
}

.post-meta-top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.post-main-title {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.author-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  border: 2px solid var(--primary);
}

.author-info {
  text-align: left;
}

.author-name {
  font-weight: 700;
  color: var(--text-main);
  font-size: 1rem;
}

.author-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.post-featured-image {
  margin: 2rem 0 3rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.post-content {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #e2e8f0;
}

.post-content h2 {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  color: #ffffff;
}

.post-content h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 600;
  margin: 2rem 0 0.8rem;
  color: #f1f5f9;
}

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

.post-content ul, .post-content ol {
  margin: 0 0 1.5rem 1.5rem;
}

.post-content li {
  margin-bottom: 0.5rem;
}

.post-content blockquote {
  border-left: 4px solid var(--primary);
  padding: 1rem 1.5rem;
  background: rgba(56, 189, 248, 0.05);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  font-size: 1.15rem;
  color: #f8fafc;
  margin: 2rem 0;
}

.post-content code {
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.08);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
  color: #7dd3fc;
  word-break: break-word;
}

/* Multi-Image Gallery */
.post-gallery-section {
  margin: 3.5rem 0;
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

.gallery-heading {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-main);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border-subtle);
  aspect-ratio: 4 / 3;
  background: #0f172a;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.75rem 1rem;
  background: linear-gradient(to top, rgba(9, 13, 22, 0.95), transparent);
  color: #f1f5f9;
  font-size: 0.8rem;
}

/* Lightbox Modal */
.lightbox-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(9, 13, 22, 0.95);
  backdrop-filter: blur(20px);
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.lightbox-modal.active {
  display: flex;
}

.lightbox-content {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius-md);
  box-shadow: 0 25px 50px rgba(0,0,0,0.8);
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  font-size: 2rem;
  color: #fff;
  cursor: pointer;
}

/* Social Share Bar */
.share-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  margin: 3rem 0;
}

.share-buttons {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid var(--border-subtle);
  transition: var(--transition-fast);
}

.share-btn:hover {
  background: var(--primary);
  color: #090d16;
  border-color: var(--primary);
}

/* Footer */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-subtle);
  background: rgba(9, 13, 22, 0.95);
  padding: 3rem 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-socials {
  display: flex;
  gap: 1rem;
}

/* Responsive Media Queries */
@media (max-width: 768px) {
  .mobile-toggle {
    display: inline-flex;
  }

  .nav-container {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(9, 13, 22, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 1rem 1.5rem;
    display: none;
    box-shadow: 0 20px 40px rgba(0,0,0,0.8);
  }

  .nav-container.active {
    display: block;
  }

  .nav-menu {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .nav-link {
    width: 100%;
    padding: 0.6rem 1rem;
    font-size: 1rem;
  }

  .hero-section {
    padding: 2.5rem 0 2rem;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-bio {
    font-size: 1rem;
  }

  .category-bar {
    justify-content: flex-start;
    overflow-x: auto;
    white-space: nowrap;
    flex-wrap: nowrap;
    padding-bottom: 0.5rem;
    -webkit-overflow-scrolling: touch;
  }

  .posts-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
  }

  .post-main-title {
    font-size: 2rem;
  }

  .post-content {
    font-size: 1rem;
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 0.75rem;
  }

  .share-section {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }

  .share-buttons {
    flex-wrap: wrap;
    width: 100%;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 540px) {
  .container {
    padding: 0 1rem;
  }

  .hero-title {
    font-size: 1.85rem;
  }

  .posts-grid {
    grid-template-columns: 1fr;
  }

  .post-main-title {
    font-size: 1.65rem;
  }

  .post-featured-image {
    margin: 1.5rem 0 2rem;
  }

  .post-gallery-section {
    padding: 1.25rem;
    margin: 2rem 0;
  }
}