/* ============================================
   AI RECON — Premium Dark Magazine Design
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=Playfair+Display:wght@700;800&display=swap');

:root {
  --bg: #0a0a12;
  --bg-card: #111122;
  --bg-hover: #1a1a30;
  --bg-glass: rgba(17, 17, 34, 0.82);
  --text: #e8e8f0;
  --text-dim: #7878a0;
  --text-muted: #505070;
  --accent-blue: #4a8aff;
  --accent-gold: #ffcc44;
  --accent-purple: #9966ff;
  --accent-green: #4ac878;
  --accent-red: #ff5050;
  --border: #222244;
  --border-light: #2a2a50;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
  --radius: 16px;
  --radius-sm: 10px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --transition: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* === Subtle background noise === */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

/* === HEADER === */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-icon {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: white;
}

.logo span { color: var(--accent-gold); }

.tagline {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: 12px;
  display: none;
}

@media (min-width: 640px) {
  .tagline { display: inline; }
}

nav {
  display: flex;
  gap: 1rem;
  align-items: center;
}

nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color var(--transition);
  padding: 6px 12px;
  border-radius: 8px;
}

nav a:hover { color: var(--text); background: rgba(255,255,255,0.05); }

/* === MAIN CONTAINER === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  position: relative;
  z-index: 1;
}

/* === HERO SECTION === */
.hero {
  text-align: center;
  padding: 3rem 0 3.5rem;
  position: relative;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-blue), var(--accent-gold), transparent);
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent-blue) 30%, var(--accent-gold) 70%, var(--accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
}

.hero p {
  font-size: 1.1rem;
  color: var(--text-dim);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* === FEATURED ARTICLE === */
.featured-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 2.5rem;
  transition: box-shadow var(--transition);
  text-decoration: none;
  color: var(--text);
}

.featured-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(74, 138, 255, 0.3);
}

.featured-image {
  height: 100%;
  min-height: 300px;
  background: linear-gradient(135deg, #1a1a3a, #0a0a20);
  position: relative;
  overflow: hidden;
}

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

.featured-card:hover .featured-image img {
  transform: scale(1.03);
}

.featured-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 50%, var(--bg-card) 100%);
}

.featured-body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.featured-body .meta {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 1rem;
  font-size: 0.8rem;
}

.featured-body .tag {
  background: linear-gradient(135deg, var(--accent-gold), #ff9900);
  color: #000;
  padding: 0.2rem 0.7rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.featured-body .tag.purple {
  background: linear-gradient(135deg, var(--accent-purple), #7744cc);
  color: white;
}

.featured-body h2 {
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.75rem;
  font-family: var(--font-display);
}

.featured-body .excerpt {
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.6;
}

.featured-body .read-more {
  margin-top: 1.25rem;
  font-size: 0.85rem;
  color: var(--accent-blue);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.featured-body .read-more .arrow {
  transition: transform var(--transition);
}

.featured-card:hover .read-more .arrow {
  transform: translateX(4px);
}

/* === TRACK TABS === */
.tracks {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.track-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition);
  position: relative;
}

.track-btn:hover {
  color: var(--text);
  background: rgba(255,255,255,0.04);
}

.track-btn.active {
  color: var(--text);
  background: linear-gradient(135deg, rgba(74,138,255,0.15), rgba(153,102,255,0.08));
  font-weight: 600;
}

.track-btn .count {
  display: inline-block;
  background: var(--border);
  color: var(--text-dim);
  font-size: 0.7rem;
  padding: 1px 7px;
  border-radius: 10px;
  margin-left: 6px;
  font-weight: 500;
}

.track-btn.active .count {
  background: rgba(74,138,255,0.25);
  color: var(--accent-blue);
}

/* === ARTICLE GRID === */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.25rem;
  min-height: 200px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-decoration: none;
  color: var(--text);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.article-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  padding: 1px;
  background: linear-gradient(135deg, transparent, transparent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  transition: background var(--transition);
  pointer-events: none;
}

.article-card:hover {
  background: var(--bg-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: rgba(74,138,255,0.2);
}

.article-card:hover::before {
  background: linear-gradient(135deg, rgba(74,138,255,0.2), rgba(153,102,255,0.1));
}

.article-card .card-image {
  width: calc(100% + 3rem);
  margin: -1.5rem -1.5rem 1.25rem -1.5rem;
  height: 180px;
  background: linear-gradient(135deg, #1a1a3a, #0a0a20);
  overflow: hidden;
  position: relative;
}

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

.article-card:hover .card-image img {
  transform: scale(1.05);
}

.article-card .meta {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 0.75rem;
  font-size: 0.78rem;
}

.article-card .tag {
  background: rgba(74,138,255,0.12);
  color: var(--accent-blue);
  padding: 0.2rem 0.65rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.article-card .tag.gold {
  background: rgba(255,204,68,0.12);
  color: var(--accent-gold);
}

.article-card .tag.purple {
  background: rgba(153,102,255,0.12);
  color: var(--accent-purple);
}

.article-card .date {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.article-card h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card .excerpt {
  color: var(--text-dim);
  font-size: 0.85rem;
  line-height: 1.55;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card .card-footer {
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.article-card .card-footer .read-link {
  color: var(--accent-blue);
  font-weight: 600;
  font-size: 0.78rem;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition);
}

.article-card:hover .card-footer .read-link {
  gap: 8px;
}

/* === ARTICLE PAGE === */
.article-page {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem;
}

.article-page .back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-dim);
  text-decoration: none;
  margin-bottom: 2rem;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color var(--transition);
}

.article-page .back:hover { color: var(--accent-blue); }

.article-page h1 {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.75rem;
  font-family: var(--font-display);
  letter-spacing: -0.5px;
}

.article-page .subtitle {
  font-size: 1.1rem;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.article-page .article-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-dim);
  align-items: center;
}

.article-page .content {
  font-size: 1.05rem;
  line-height: 1.8;
}

.article-page .content p {
  margin-bottom: 1.25rem;
}

.article-page .content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  color: var(--text);
  letter-spacing: -0.3px;
}

.article-page .content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
  color: var(--accent-blue);
}

.article-page .content blockquote {
  border-left: 3px solid var(--accent-gold);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  background: linear-gradient(90deg, rgba(255,204,68,0.06), transparent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-dim);
  font-style: italic;
  line-height: 1.7;
}

.article-page .content ul, .article-page .content ol {
  margin: 1.25rem 0;
  padding-left: 1.5rem;
}

.article-page .content li {
  margin-bottom: 0.5rem;
  line-height: 1.7;
}

.article-page .content img {
  max-width: 100%;
  border-radius: var(--radius);
  margin: 1.5rem 0;
  border: 1px solid var(--border);
}

.article-page .content .caption {
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: -1rem;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.article-page .content strong {
  color: var(--text);
}

.article-page .content code {
  background: rgba(255,255,255,0.06);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.9em;
  border: 1px solid var(--border);
}

/* === NEWSLETTER SIGNUP === */
.newsletter-box {
  background: linear-gradient(135deg, var(--bg-card), #15152e);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 2.5rem;
  margin-top: 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.newsletter-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 50% 50%, rgba(74,138,255,0.03) 0%, transparent 60%);
  pointer-events: none;
}

.newsletter-box h3 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
  position: relative;
}

.newsletter-box p {
  color: var(--text-dim);
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
  position: relative;
}

.subscribe-inline {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  position: relative;
}

.subscribe-inline input {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.8rem 1.2rem;
  border-radius: var(--radius-sm);
  width: 300px;
  max-width: 100%;
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition);
}

.subscribe-inline input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(74,138,255,0.1);
}

.subscribe-inline button {
  background: linear-gradient(135deg, var(--accent-blue), #3366dd);
  color: white;
  border: none;
  padding: 0.8rem 1.8rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition);
  letter-spacing: 0.3px;
}

.subscribe-inline button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(74,138,255,0.3);
}

.subscribe-inline button:active {
  transform: translateY(0);
}

/* === FOOTER === */
footer {
  text-align: center;
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.82rem;
  position: relative;
  z-index: 1;
}

footer a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color var(--transition);
}

footer a:hover { color: var(--text); }

/* === ANIMATIONS === */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.article-card, .featured-card {
  animation: fadeUp 0.4s ease both;
}

.article-card:nth-child(1) { animation-delay: 0.05s; }
.article-card:nth-child(2) { animation-delay: 0.1s; }
.article-card:nth-child(3) { animation-delay: 0.15s; }
.article-card:nth-child(4) { animation-delay: 0.2s; }
.article-card:nth-child(5) { animation-delay: 0.25s; }
.article-card:nth-child(6) { animation-delay: 0.3s; }

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; }
  .hero { padding: 2rem 0 2.5rem; }
  .featured-card { grid-template-columns: 1fr; }
  .featured-image { min-height: 200px; }
  .featured-gradient { background: linear-gradient(0deg, var(--bg-card) 20%, transparent 60%); }
  .featured-body { padding: 1.5rem; }
  .featured-body h2 { font-size: 1.3rem; }
  .article-grid { grid-template-columns: 1fr; }
  .article-page { padding: 1.5rem; }
  .article-page h1 { font-size: 1.7rem; }
  .newsletter-box { padding: 1.5rem; }
  header { padding: 0 1rem; }
  .container { padding: 1rem; }
  .subscribe-inline input { width: 100%; }
  .subscribe-inline button { width: 100%; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .article-grid { grid-template-columns: repeat(2, 1fr); }
}