/* Shell: luminous background, floating glass navigation, view container, mobile tab bar. */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  min-height: 100vh;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg-0);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: #b6aaff; text-decoration: none; }
a:hover { color: #d7cfff; }
button, input, select, textarea { font: inherit; color: inherit; }
::selection { background: rgba(143, 124, 255, 0.35); }
[hidden] { display: none !important; }
.mono { font-family: var(--mono); }
.display { font-family: var(--display); }
.muted { color: var(--muted); }
.faint { color: var(--faint); }

/* Luminous background: drifting light fields + star dust + vignette */
.sky { position: fixed; inset: 0; z-index: -1; overflow: hidden; background: radial-gradient(120% 90% at 50% 0%, var(--bg-2) 0%, var(--bg-0) 60%); }
.sky::before, .sky::after { content: ""; position: absolute; inset: -20%; }
.sky::before {
  background:
    radial-gradient(38% 34% at 18% 12%, rgba(143, 124, 255, 0.28), transparent 70%),
    radial-gradient(30% 30% at 86% 18%, rgba(92, 225, 255, 0.16), transparent 70%),
    radial-gradient(40% 36% at 70% 92%, rgba(46, 230, 182, 0.10), transparent 70%),
    radial-gradient(34% 30% at 10% 80%, rgba(255, 107, 74, 0.07), transparent 70%);
  filter: blur(10px);
  animation: drift 48s ease-in-out infinite alternate;
}
.sky::after {
  background-image:
    radial-gradient(1px 1px at 12% 22%, rgba(255,255,255,0.55), transparent 60%),
    radial-gradient(1px 1px at 72% 12%, rgba(255,255,255,0.4), transparent 60%),
    radial-gradient(1.2px 1.2px at 42% 68%, rgba(255,255,255,0.35), transparent 60%),
    radial-gradient(1px 1px at 88% 58%, rgba(255,255,255,0.45), transparent 60%),
    radial-gradient(1px 1px at 28% 88%, rgba(255,255,255,0.3), transparent 60%),
    radial-gradient(1px 1px at 58% 38%, rgba(255,255,255,0.25), transparent 60%);
  background-size: 420px 420px, 520px 520px, 380px 380px, 610px 610px, 460px 460px, 300px 300px;
  opacity: 0.55;
}
@keyframes drift { from { transform: translate3d(-2%, -1%, 0) scale(1); } to { transform: translate3d(2%, 2%, 0) scale(1.06); } }
@media (prefers-reduced-motion: reduce) { .sky::before { animation: none; } }

/* Floating top navigation */
.topnav {
  position: fixed; top: 14px; left: 50%; transform: translateX(-50%);
  width: min(var(--max-w), calc(100% - 28px)); height: var(--nav-h); z-index: 50;
  display: flex; align-items: center; gap: 14px; padding: 0 10px 0 14px;
  background: rgba(10, 13, 26, 0.62); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border); border-radius: 20px; box-shadow: var(--shadow-soft);
}
.topnav::before { content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; pointer-events: none;
  background: linear-gradient(180deg, rgba(255,255,255,0.12), transparent 40%); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); white-space: nowrap; }
.brand:hover { color: var(--text); }
.brand-mark { width: 34px; height: 34px; flex: none; filter: drop-shadow(0 0 12px rgba(143,124,255,0.45)); }
.brand-name { font-family: var(--display); font-weight: 600; font-size: 16px; letter-spacing: 0.01em; line-height: 1; }
.brand-sub { display: block; font-family: var(--mono); font-size: 10px; color: var(--muted); letter-spacing: 0.14em; text-transform: uppercase; margin-top: 3px; }
.nav-links { display: flex; gap: 2px; margin: 0 auto; padding: 4px; border-radius: 14px; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.04); }
.nav-link {
  position: relative; display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 10px;
  color: var(--text-2); font-weight: 500; font-size: 13.5px; transition: color .2s, background .2s;
}
.nav-link svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.8; }
.nav-link:hover { color: var(--text); background: rgba(255,255,255,0.05); }
.nav-link.active { color: #fff; background: var(--brand-soft); box-shadow: inset 0 0 0 1px rgba(160,150,255,0.28); }
.nav-link .count { font-family: var(--mono); font-size: 10.5px; padding: 1px 6px; border-radius: 999px; background: var(--violet-2); color: #fff; }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.kbd-btn { display: inline-flex; align-items: center; gap: 10px; height: 38px; padding: 0 10px 0 12px; border-radius: 12px; border: 1px solid var(--glass-border); background: rgba(255,255,255,0.03); color: var(--muted); cursor: pointer; transition: border-color .2s, color .2s; }
.kbd-btn:hover { color: var(--text); border-color: var(--glass-border-strong); }
.kbd-btn svg { width: 15px; height: 15px; stroke: currentColor; fill: none; stroke-width: 2; }
kbd { font-family: var(--mono); font-size: 10.5px; padding: 2px 6px; border-radius: 6px; border: 1px solid var(--glass-border-strong); color: var(--text-2); background: rgba(255,255,255,0.04); }

/* View container */
.main { padding: calc(var(--nav-h) + 36px) 0 40px; }
.view { width: min(var(--max-w), calc(100% - 40px)); margin: 0 auto; animation: view-in .55s var(--ease) both; }
@keyframes view-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.view-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; flex-wrap: wrap; margin: 12px 0 26px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: #b3a8ff; }
.eyebrow::before { content: ""; width: 18px; height: 1px; background: var(--brand); }
.view-title { font-family: var(--display); font-size: clamp(28px, 3.4vw, 42px); font-weight: 600; letter-spacing: -0.02em; line-height: 1.08; margin-top: 10px; }
.view-sub { color: var(--text-2); margin-top: 10px; max-width: 760px; font-size: 15px; }
.view-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.grad-text { background: var(--brand); -webkit-background-clip: text; background-clip: text; color: transparent; }

.footer { width: min(var(--max-w), calc(100% - 40px)); margin: 48px auto 0; padding: 18px 4px; border-top: 1px solid rgba(255,255,255,0.06); color: var(--faint); font-size: 12px; display: flex; gap: 14px; flex-wrap: wrap; justify-content: space-between; }
.footer b { color: var(--warn); font-weight: 600; }

/* Mobile */
.tabbar { display: none; }
@media (max-width: 920px) {
  .nav-links { display: none; }
  .kbd-btn kbd, .kbd-btn .label { display: none; }
  .topnav { top: 10px; height: 56px; }
  .main { padding-top: calc(56px + 26px); padding-bottom: 96px; }
  .view, .footer { width: calc(100% - 28px); }
  .tabbar {
    display: grid; grid-template-columns: repeat(5, 1fr); position: fixed; left: 10px; right: 10px; bottom: 10px; z-index: 50;
    height: 64px; padding: 6px; border-radius: 20px; background: rgba(10, 13, 26, 0.78); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border); box-shadow: var(--shadow);
  }
  .tabbar a { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; border-radius: 14px; color: var(--muted); font-size: 10.5px; font-weight: 500; }
  .tabbar a svg { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 1.8; }
  .tabbar a.active { color: #fff; background: var(--brand-soft); }
}