:root {
  --bg: #07080a;
  --bg-2: #0c1014;
  --surface: #111318;
  --elevated: #181b21;
  --fg: #e8eaed;
  --muted: #8b919a;
  --line: rgba(255,255,255,.08);
  --teal: #5eead4;
  --teal-2: #2dd4bf;
  --teal-dim: rgba(94,234,212,.14);
  --danger: #f87171;
  --ok: #86efac;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(94,234,212,.12), transparent 55%),
    radial-gradient(800px 400px at 90% 0%, rgba(45,212,191,.06), transparent 50%),
    var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  min-height: 100%;
}
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.nav {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
  color: var(--fg);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: -.02em;
}
.brand small { color: var(--muted); font-weight: 500; letter-spacing: .08em; text-transform: uppercase; font-size: 10px; }
.nav-links { margin-left: auto; display: flex; gap: 10px; align-items: center; }
.btn, button, input[type=submit] {
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  font: inherit;
  cursor: pointer;
}
.btn-primary, button.primary { background: var(--teal); color: #04221c; font-weight: 650; }
.btn-ghost, button.ghost { background: var(--elevated); color: var(--fg); }
.btn-danger { background: rgba(248,113,113,.16); color: var(--danger); }
.hero { padding: 72px 0 48px; }
.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  letter-spacing: -.04em;
  line-height: 1.02;
  margin: 12px 0 16px;
}
.lede { color: var(--muted); font-size: 18px; max-width: 640px; line-height: 1.5; }
.grid { display: grid; gap: 16px; }
.cards { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.card {
  background: linear-gradient(180deg, rgba(255,255,255,.02), transparent 40%), var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
}
.card h3 { margin: 0 0 8px; font-size: 16px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.5; }
code, .mono { font-family: var(--mono); font-size: 13px; }
pre {
  background: var(--elevated);
  border-radius: 12px;
  padding: 14px;
  overflow: auto;
  border: 1px solid var(--line);
}
label { display: block; font-size: 13px; color: var(--muted); margin: 12px 0 6px; }
input, textarea, select {
  width: 100%;
  background: var(--elevated);
  color: var(--fg);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px 12px;
  font: inherit;
}
textarea { min-height: 110px; resize: vertical; }
.auth-box { width: min(420px, calc(100% - 32px)); margin: 64px auto; }
.err { color: var(--danger); font-size: 13px; min-height: 1.2em; }
.ok { color: var(--ok); }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th { text-align: left; color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
.table td, .table th { padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
.pill {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--teal-dim);
  color: var(--teal);
  font-size: 12px;
}
.footer { color: var(--muted); font-size: 13px; padding: 40px 0 24px; }
.chat-shell { height: calc(100vh - 72px); display: grid; grid-template-rows: 1fr auto; min-width: 0; }
.messages { overflow: auto; padding: 20px 0 12px; display: flex; flex-direction: column; gap: 12px; }
.bubble { max-width: min(720px, 92%); padding: 12px 14px; border-radius: 14px; line-height: 1.5; white-space: pre-wrap; }
.bubble.user { margin-left: auto; background: #12352e; }
.bubble.assistant { background: var(--surface); border: 1px solid var(--line); }
.composer { display: flex; gap: 8px; padding: 12px 0 20px; }
.composer textarea { min-height: 48px; }
.stack { display: flex; gap: 10px; flex-wrap: wrap; }
.kicker { letter-spacing: .14em; text-transform: uppercase; font-size: 11px; color: var(--teal); margin: 0; }
.swatches { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
.swatches label { margin: 0; }
.swatches input[type=color] { height: 40px; padding: 4px; cursor: pointer; }
.field-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 8px;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}
.field-row .move { display: flex; flex-direction: column; gap: 4px; }
.field-row .move button { padding: 4px 8px; font-size: 12px; }
.preview-frame {
  background: #eceff1;
  border-radius: 16px;
  padding: 18px;
  min-height: 220px;
}
.two-col { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 42%); gap: 18px; align-items: start; }
@media (max-width: 860px) {
  .studio { grid-template-columns: 1fr !important; }
  .chat-shell { height: 62vh; }
  .two-col { grid-template-columns: 1fr; }
}