/* ═══════════════════════════════════════════════════════════════════════════
   ENTROPY AI — Shared CSS for main-theme pages
   Extracted from: portfolio.html, terraform.html, swap.html, identity.html,
                   qing.html, explorer.html, learn.html, glossary.html
   NOT for: chat.html (void theme), cockpit/langlands/compute/map (academic)
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

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

/* ── Variables — cosmic design system (see design/CHROME-MISSION.md) ── */
:root {
  /* Deep space ground. Depth comes from lib/cosmic-bg.js where present;
     surfaces are frosted glass so they read over the nebula and stay legible
     on pages without the canvas. */
  --bg-primary:#04050b;
  --bg-secondary:rgba(16,20,34,0.62);
  --bg-tertiary:rgba(255,255,255,0.045);
  --bg-card:rgba(16,20,34,0.55);
  --bg-elevated:rgba(255,255,255,0.08);
  --border-color:rgba(180,200,255,0.16);
  --border-subtle:rgba(180,200,255,0.09);
  --text-primary:#eaf0ff;
  --text-secondary:#9aa6c8;
  --text-muted:#6b7699;
  /* Accent — ice (links/live/focus) */
  --accent-primary:#8fd0ff;
  --accent-secondary:#b9deff;
  --accent-glow:rgba(143,208,255,0.15);
  --success:#4be0b0;
  --success-muted:rgba(75,224,176,0.15);
  --warning:#ffb46e;
  --error:#ff6b8f;
  /* Chrome-ice for prime controls; cosmic display gradient for majestic headings */
  --gradient-primary:linear-gradient(135deg,#eaf2ff 0%,#a9c6ff 100%);
  --gradient-subtle:linear-gradient(135deg,rgba(143,208,255,0.1) 0%,rgba(123,79,224,0.12) 100%);
  --gradient-display:linear-gradient(180deg,#ffffff 0%,#dfe8ff 42%,#9db4ff 100%);
  --font-sans:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  --font-serif:'Iowan Old Style',Georgia,'Times New Roman',serif;
  --font-mono:'JetBrains Mono',ui-monospace,monospace;
}

/* ── Body ── */
body {
  font-family:var(--font-sans);
  background:var(--bg-primary);
  color:var(--text-primary);
  min-height:100vh;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

/* ── Header ── */
.header {
  background:var(--bg-secondary);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border-color);
  padding:0 32px;
  height:64px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  position:sticky;
  top:0;
  z-index:100;
}

/* ── Logo ── */
.logo {
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
}
.logo-icon {
  width:40px;
  height:40px;
  background:var(--gradient-primary);
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  box-shadow:0 4px 18px rgba(143,208,255,0.35);
}
.logo-text {
  font-size:20px;
  font-weight:700;
  background:var(--gradient-primary);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  letter-spacing:-0.02em;
}

/* ── Header Nav ── */
.header-nav {
  display:flex;
  align-items:center;
  gap:8px;
}
.header-nav .status-item {
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-secondary);
}

/* ── Status Dots ── */
.status-dot {
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--text-muted);
  box-shadow:none;
}
.status-dot.connected {
  background:var(--success);
  box-shadow:0 0 8px var(--success);
}
.status-dot.disconnected {
  background:var(--error);
  box-shadow:0 0 8px var(--error);
}

/* ── Buttons ── */
.btn {
  padding:10px 20px;
  border-radius:10px;
  font-size:14px;
  font-weight:500;
  cursor:pointer;
  border:none;
  transition:all 0.15s;
  display:inline-flex;
  align-items:center;
  gap:8px;
  text-decoration:none;
  font-family:var(--font-sans);
}
.btn:disabled {
  opacity:0.4;
  cursor:not-allowed;
  transform:none !important;
}
.btn-primary {
  background:var(--gradient-primary);
  color:#08101f;
  font-weight:700;
  box-shadow:0 6px 22px rgba(120,160,255,0.32);
}
.btn-primary:hover:not(:disabled) {
  transform:translateY(-1px);
  box-shadow:0 10px 30px rgba(120,160,255,0.42);
}
.btn-secondary {
  background:var(--bg-tertiary);
  color:var(--text-primary);
  border:1px solid var(--border-color);
}
.btn-secondary:hover:not(:disabled) {
  background:var(--bg-elevated);
  border-color:var(--accent-primary);
}
.btn-ghost {
  background:transparent;
  color:var(--text-secondary);
  padding:8px 12px;
}
.btn-ghost:hover {
  color:var(--text-primary);
  background:var(--bg-tertiary);
}
.btn-ghost.active {
  color:var(--accent-secondary);
  background:var(--accent-glow);
}
.btn-danger {
  background:transparent;
  color:var(--error);
  border:1px solid rgba(239,68,68,0.3);
}
.btn-danger:hover:not(:disabled) {
  background:rgba(239,68,68,0.1);
}
.btn-sm {
  padding:6px 12px;
  font-size:12px;
  border-radius:8px;
}
.btn-lg {
  padding:14px 24px;
  font-size:16px;
  border-radius:12px;
}

/* ── Page Container ── */
.page {
  max-width:1400px;
  margin:0 auto;
  padding:32px 24px 120px;
  animation:fadeIn 0.3s ease;
  /* Float content above the fixed cosmic-bg canvas (z-0) where present. */
  position:relative;
  z-index:1;
}
@keyframes fadeIn {
  from { opacity:0; transform:translateY(8px); }
  to { opacity:1; transform:translateY(0); }
}
.page-header {
  margin-bottom:32px;
}
.page-title {
  font-family:var(--font-serif);
  font-size:34px;
  font-weight:400;
  letter-spacing:-0.01em;
  margin-bottom:4px;
  background:var(--gradient-display);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.page-subtitle {
  font-size:14px;
  color:var(--text-muted);
}

/* ── Cards ── */
.card {
  background:var(--bg-card);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border:1px solid var(--border-color);
  border-radius:14px;
  overflow:hidden;
  transition:border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}
.card:hover {
  border-color:rgba(143,208,255,0.32);
}
.card-header {
  padding:16px 20px;
  border-bottom:1px solid var(--border-color);
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.card-title {
  font-size:16px;
  font-weight:600;
}
.card-body {
  padding:16px 20px;
}

/* ── Section Patterns ── */
.section-title {
  font-size:16px;
  font-weight:600;
  margin-bottom:16px;
  display:flex;
  align-items:center;
  gap:8px;
}
.section-badge {
  font-size:10px;
  font-weight:500;
  padding:3px 8px;
  border-radius:6px;
  background:var(--accent-glow);
  color:var(--accent-secondary);
  text-transform:uppercase;
  letter-spacing:0.06em;
}

/* ── Connect Prompt ── */
.connect-prompt {
  text-align:center;
  padding:80px 40px;
  background:var(--bg-card);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border:1px solid var(--border-color);
  border-radius:16px;
}
.connect-prompt .icon {
  font-size:48px;
  margin-bottom:16px;
}
.connect-prompt h2 {
  font-size:22px;
  margin-bottom:8px;
}

/* ── Focus Ring ── */
:focus-visible {
  outline:2px solid var(--accent-primary);
  outline-offset:2px;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background:transparent; }
::-webkit-scrollbar-thumb { background:var(--bg-elevated); border-radius:3px; }
::-webkit-scrollbar-thumb:hover { background:var(--text-muted); }

/* ── Responsive ── */
@media(max-width:900px) {
  body { padding-bottom:64px !important; }
  .header { padding:0 16px; }
  .page { padding:24px 16px 120px; }
  .page-title { font-size:24px; }
}