@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --bg: #060a13;
  --bg-secondary: #0b1120;
  --bg-card: #0d1525;
  --bg-card-hover: #111d33;
  --text: #e2e8f0;
  --text-secondary: #8b97b0;
  --text-muted: #3e4c63;
  --accent: #3b82f6;
  --accent-light: #60a5fa;
  --accent-dim: #2563eb;
  --cyan: #22d3ee;
  --cyan-dim: #0891b2;
  --purple: #a78bfa;
  --gold: #f59e0b;
  --green: #10b981;
  --red: #ef4444;
  --border: #141e30;
  --border-light: #1e2d45;
  --glow-blue: rgba(59, 130, 246, 0.12);
  --glow-cyan: rgba(34, 211, 238, 0.08);
  --radius: 14px;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: var(--accent-light); text-decoration: none; transition: all 0.2s; }
a:hover { color: var(--cyan); }

/* ── Animated Grid Background ── */
.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
}

/* ── Scanline effect ── */
.scanline {
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(59, 130, 246, 0.008) 2px,
    rgba(59, 130, 246, 0.008) 4px
  );
  pointer-events: none;
  z-index: 0;
}

/* ── Floating orbs ── */
.orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
  animation: float 20s ease-in-out infinite;
}
.orb-1 {
  width: 400px; height: 400px;
  background: rgba(59, 130, 246, 0.08);
  top: -100px; left: -100px;
}
.orb-2 {
  width: 350px; height: 350px;
  background: rgba(34, 211, 238, 0.06);
  top: 30%; right: -80px;
  animation-delay: -7s;
}
.orb-3 {
  width: 300px; height: 300px;
  background: rgba(167, 139, 250, 0.05);
  bottom: 10%; left: 20%;
  animation-delay: -14s;
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}

/* ── Header ── */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 0.9rem 2rem;
  position: sticky;
  top: 0;
  background: rgba(6, 10, 19, 0.85);
  backdrop-filter: blur(20px) saturate(1.2);
  z-index: 100;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  color: white;
  font-weight: 800;
  font-family: 'Space Grotesk', sans-serif;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.brand-dot { color: var(--accent-light); }

/* ── Tabs ── */
.tabs { display: flex; gap: 0.3rem; }

.tab {
  padding: 0.4rem 1rem;
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: default;
  transition: all 0.2s;
  border: 1px solid transparent;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: -0.01em;
}

.tab.active {
  background: linear-gradient(135deg, rgba(59,130,246,0.15), rgba(34,211,238,0.08));
  color: var(--cyan);
  border-color: rgba(34, 211, 238, 0.25);
  cursor: pointer;
  box-shadow: 0 0 15px rgba(34, 211, 238, 0.08);
}

.tab.coming-soon { font-size: 0.7rem; opacity: 0.3; }
.tab.coming-soon::after {
  content: ' // soon';
  font-weight: 400;
  font-size: 0.6rem;
  color: var(--text-muted);
}

/* ── Hero ── */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 6rem 2rem 3rem;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59,130,246,0.15) 0%, rgba(34,211,238,0.05) 40%, transparent 70%);
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
  z-index: -1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: rgba(34, 211, 238, 0.06);
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--cyan);
  margin-bottom: 2rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.hero-badge .pulse {
  width: 7px; height: 7px;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulse 2s infinite;
  box-shadow: 0 0 8px rgba(34, 211, 238, 0.6);
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px rgba(34, 211, 238, 0.6); }
  50% { opacity: 0.5; box-shadow: 0 0 20px rgba(34, 211, 238, 0); }
}

.hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 1.25rem;
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, #ffffff 0%, var(--accent-light) 40%, var(--cyan) 80%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero h1 .outline-text {
  -webkit-text-stroke: 1.5px rgba(59, 130, 246, 0.4);
  -webkit-text-fill-color: transparent;
}

.hero p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── Terminal decoration ── */
.terminal-bar {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  padding: 0.6rem 1.2rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 2rem;
}
.terminal-bar .prompt { color: var(--cyan); }
.terminal-bar .cmd { color: var(--accent-light); }
.terminal-bar .cursor {
  display: inline-block;
  width: 7px; height: 14px;
  background: var(--cyan);
  animation: blink 1s step-end infinite;
  margin-left: 2px;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

/* ── Stats bar ── */
.stats-bar {
  display: flex;
  justify-content: center;
  gap: 3rem;
  padding: 1.5rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.stat { text-align: center; }

.stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-light), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.2rem;
}

/* ── Section Headers ── */
.section-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.section-header h2 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.section-header h2::before {
  content: '//';
  color: var(--accent);
  margin-right: 0.4rem;
}

.section-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border-light), transparent);
}

/* ── Edition Grid ── */
.editions {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 2rem 2rem;
  position: relative;
  z-index: 1;
}

.editions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1rem;
}

.edition-card {
  background: linear-gradient(160deg, var(--bg-card), rgba(13, 21, 37, 0.6));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: all 0.35s ease;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  position: relative;
  overflow: hidden;
}

.edition-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--cyan), transparent);
  opacity: 0;
  transition: opacity 0.35s;
}

.edition-card::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 100px; height: 100px;
  background: radial-gradient(circle at top right, rgba(59,130,246,0.06), transparent 70%);
  pointer-events: none;
}

.edition-card:hover {
  background: linear-gradient(160deg, var(--bg-card-hover), rgba(17, 29, 51, 0.8));
  border-color: rgba(59, 130, 246, 0.3);
  transform: translateY(-4px);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(59, 130, 246, 0.1),
    0 0 30px rgba(59, 130, 246, 0.05);
}

.edition-card:hover::before { opacity: 1; }

.edition-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--cyan);
  font-weight: 500;
}

.edition-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text);
}

.edition-meta {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--text-muted);
}

.edition-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.badge-ia {
  background: linear-gradient(135deg, rgba(59,130,246,0.15), rgba(34,211,238,0.1));
  color: var(--cyan);
  border: 1px solid rgba(34, 211, 238, 0.2);
}

.edition-topics {
  color: var(--text-secondary);
  font-size: 0.82rem;
  line-height: 1.6;
}

/* ── Data stream decoration ── */
.data-stream {
  position: relative;
  overflow: hidden;
  padding: 2rem;
  margin: 1rem auto;
  max-width: 1200px;
  z-index: 1;
}

.data-stream-inner {
  display: flex;
  gap: 2rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: var(--border-light);
  overflow: hidden;
  white-space: nowrap;
  mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}

.data-stream-inner span {
  animation: scroll 30s linear infinite;
}

@keyframes scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: 5rem 2rem;
  color: var(--text-muted);
}

.empty-state .icon {
  font-size: 3.5rem;
  margin-bottom: 1.25rem;
  opacity: 0.25;
}

.empty-state p { font-size: 1rem; }

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-top: 5rem;
  position: relative;
  z-index: 1;
}

.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-secondary);
  letter-spacing: -0.01em;
}

.footer-tagline {
  margin-top: 0.4rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.footer-line {
  width: 40px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--cyan));
  margin: 1rem auto;
  border-radius: 1px;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .header-inner { flex-direction: column; gap: 0.75rem; }
  .hero { padding: 3.5rem 1.25rem 2rem; }
  .hero-glow { width: 350px; height: 350px; }
  .editions { padding: 1.25rem; }
  .editions-grid { grid-template-columns: 1fr; }
  .tabs { flex-wrap: wrap; justify-content: center; }
  .stats-bar { gap: 1.5rem; flex-wrap: wrap; }
  .stat-value { font-size: 1.4rem; }
  .terminal-bar { font-size: 0.62rem; padding: 0.5rem 0.8rem; }
  .data-stream { display: none; }
}