:root {
  --bg: #0b0b0e;
  --panel: #121216;
  --card: #16161c;
  --line: #26262e;
  --ink: #f4f4f5;
  --mute: #8b8b96;
  --mint: #5ee9a4;
  --font: Inter, ui-sans-serif, system-ui, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
}
.skip { position: absolute; left: -999px; }
.skip:focus { left: 1rem; top: 1rem; z-index: 9; background: var(--mint); color: #000; padding: 0.4rem; }
.shell { display: grid; grid-template-columns: 16.5rem 1fr; min-height: 100%; }
.sidebar {
  border-right: 1px solid var(--line);
  padding: 1.1rem 0.85rem;
  display: flex;
  flex-direction: column;
  background: #0d0d11;
}
.brand {
  display: flex;
  gap: 0.65rem;
  align-items: center;
  color: inherit;
  text-decoration: none;
  padding: 0 0.4rem 1rem;
}
.brand strong { display: block; font-size: 0.95rem; }
.brand small { display: block; color: var(--mute); font-size: 0.68rem; }
.mark {
  width: 2rem; height: 2rem; border-radius: 0.55rem;
  display: grid; place-items: center; font-weight: 700; color: #08110d;
  background: linear-gradient(135deg, #5ee9a4, #a78bfa);
}
#nav { display: flex; flex-direction: column; gap: 0.15rem; overflow: auto; }
#nav a {
  color: #c4c4cc;
  text-decoration: none;
  border-radius: 0.55rem;
  padding: 0.42rem 0.65rem;
  font-size: 0.88rem;
}
#nav a:hover { background: #1a1a22; color: var(--ink); }
#nav a.active { background: #1e1e26; color: #fff; }
.side-foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--mute);
  font-size: 0.75rem;
  padding: 0.8rem 0.4rem 0;
}
.badge {
  border: 1px solid var(--mint);
  color: var(--mint);
  border-radius: 999px;
  padding: 0.1rem 0.5rem;
}
.os-hero-video {
  display: block;
  width: 100%;
  max-height: min(62vh, 640px);
  object-fit: cover;
  background: #08080c;
  border-radius: 0.55rem;
  border: 1px solid var(--line);
  margin-top: 0.7rem;
}
button:disabled { opacity: 0.45; cursor: not-allowed; }
h1 { font-family: Inter, ui-sans-serif, system-ui, sans-serif; letter-spacing: -0.04em; }
.walk-thumb {
  display: block;
  margin-top: 0.85rem;
  max-width: min(100%, 20rem);
  height: auto;
  border-radius: 0.55rem;
  border: 1px solid var(--line);
  background: #08080c;
}
.main { display: flex; flex-direction: column; min-width: 0; }
.bar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 1.5rem 0.4rem;
  align-items: flex-start;
}
h1 { margin: 0; font-size: 1.7rem; }
#sub { margin: 0.2rem 0 0; color: var(--mute); font-size: 0.9rem; }
.actions { display: flex; gap: 0.55rem; flex-wrap: wrap; }
button, .btn {
  font: inherit;
  cursor: pointer;
  border-radius: 0.55rem;
}
.cmd {
  background: #1a1a22;
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 0.45rem 0.7rem;
}
.primary {
  background: var(--mint);
  border: 0;
  color: #06110c;
  font-weight: 700;
  padding: 0.45rem 0.85rem;
}
.ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 0.4rem 0.7rem;
}
.workspace { padding: 1rem 1.5rem 2rem; }
.grid { display: grid; gap: 0.75rem; }
.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  padding: 0.95rem 1rem;
}
.card.glow { border-color: rgba(62, 230, 160, 0.55); box-shadow: 0 0 0 1px rgba(62, 230, 160, 0.12); }
.label { color: var(--mute); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; }
.value { font-size: 1.55rem; font-weight: 650; margin: 0.15rem 0; }
.value.mint { color: var(--mint); }
.hint { color: var(--mute); font-size: 0.82rem; }
.feed { display: grid; gap: 0.7rem; }
.feed-item { display: flex; justify-content: space-between; gap: 1rem; font-size: 0.92rem; }
.feed-item time { color: var(--mute); white-space: nowrap; }
.pills { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.pill {
  border: 1px solid rgba(62, 230, 160, 0.45);
  color: var(--mint);
  border-radius: 999px;
  padding: 0.22rem 0.65rem;
  font-size: 0.8rem;
}
button.pill {
  background: transparent;
  font: inherit;
  cursor: pointer;
}
.pill.on { background: var(--mint); color: #06110c; border-color: transparent; }
.row { display: flex; justify-content: space-between; gap: 1rem; padding: 0.7rem 0; border-bottom: 1px solid var(--line); }
.row:last-child { border-bottom: 0; }
.field { margin: 0 0 0.75rem; }
.field label { display: block; color: var(--mute); font-size: 0.68rem; letter-spacing: 0.12em; margin-bottom: 0.3rem; }
.field input {
  width: 100%;
  background: #101014;
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: 0.5rem;
  padding: 0.55rem 0.65rem;
  font: inherit;
}
.wide { grid-column: 1 / -1; }
.muted { color: var(--mute); }
.chain { display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; }
.chain span {
  background: #1a1a22;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.28rem 0.65rem;
  font-size: 0.82rem;
}
.chain .end { border-color: var(--mint); color: var(--mint); }
.arrow { color: var(--mute); }
#cmd-dialog {
  background: #121216;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  width: min(32rem, 92vw);
  padding: 1rem;
}
#cmd-dialog::backdrop { background: rgba(0,0,0,0.55); }
#cmd-input {
  width: 100%;
  margin: 0.6rem 0;
  background: #0b0b0e;
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: 0.5rem;
  padding: 0.55rem;
  font: inherit;
}
#cmd-list { list-style: none; padding: 0; margin: 0; }
#cmd-list button {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  color: inherit;
  padding: 0.45rem 0.2rem;
}
#cmd-list button:hover { color: var(--mint); }
@media (max-width: 980px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { border-right: 0; border-bottom: 1px solid var(--line); }
  #nav { flex-direction: row; flex-wrap: wrap; }
  .cols-4, .cols-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .cols-4, .cols-3, .cols-2 { grid-template-columns: 1fr; }
  .bar { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* Window chrome + dock (console OS shell) */
.os-chrome {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.45rem 0.85rem;
  background: #101014;
  border-bottom: 1px solid var(--line, #26262e);
}
.os-dots { display: flex; gap: 0.35rem; }
.os-dots i {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: #3f3f46;
  display: block;
}
.os-dots i:nth-child(1) { background: #f87171; }
.os-dots i:nth-child(2) { background: #fbbf24; }
.os-dots i:nth-child(3) { background: #5ee9a4; }
.os-chrome-title { font-size: 0.78rem; font-weight: 650; }
.os-chrome-meta { margin-left: auto; color: var(--mute, #8b8b96); font-size: 0.72rem; }
.os-dock {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  padding: 0.45rem 0.75rem 0.65rem;
  border-top: 1px solid var(--line, #26262e);
  background: #0d0d11;
}
.os-dock a {
  color: #c4c4cc;
  text-decoration: none;
  border: 1px solid var(--line, #26262e);
  border-radius: 999px;
  padding: 0.28rem 0.65rem;
  font-size: 0.75rem;
  transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}
.os-dock a:hover, .os-dock a.active {
  color: #06110c;
  background: var(--mint, #5ee9a4);
  border-color: transparent;
}
.kg-svg, .analytics-svg {
  display: block;
  width: 100%;
  height: 22rem;
  background: #0b0b10;
  border-radius: 0.7rem;
  border: 1px solid var(--line, #26262e);
}
.kg-empty { padding: 2rem 1rem; text-align: center; }
.kg-tooltip {
  position: absolute;
  pointer-events: none;
  background: #16161c;
  border: 1px solid var(--line, #26262e);
  border-radius: 0.45rem;
  padding: 0.35rem 0.55rem;
  font-size: 0.78rem;
  max-width: 18rem;
  z-index: 4;
}
.orch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr));
  gap: 0.55rem;
  margin-top: 0.75rem;
}
.orch-card {
  border: 1px solid var(--line, #26262e);
  border-radius: 0.7rem;
  padding: 0.65rem 0.75rem;
  background: #14141a;
}
.orch-card strong { display: block; font-size: 0.85rem; }
.studio-timeline {
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  padding: 0.4rem 0;
}
.studio-beat {
  flex: 1 0 6.5rem;
  min-height: 4.2rem;
  border-radius: 0.55rem;
  border: 1px solid var(--line, #26262e);
  background: linear-gradient(180deg, #1a1a22, #121216);
  padding: 0.5rem;
  font-size: 0.78rem;
  transition: transform 0.18s ease;
}
.fly-loop { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.fly-loop .pill.on, .fly-loop button.on { background: var(--mint, #5ee9a4); color: #06110c; }
@media (prefers-reduced-motion: reduce) {
  .os-dock a, .studio-beat, .kg-svg circle { transition: none !important; }
}