:root {
  --ink: #17213a; --muted: #5d6680; --line: #dde2ec; --bg: #f3f5f9; --card: #fff;
  --navy: #182c54; --amber: #f5bd41; --accent: #1f5fd6; --ok: #1a7f4b; --warn: #b4530a;
  --radius: 14px;
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 system-ui, -apple-system, 'Segoe UI', sans-serif; color: var(--ink); background: var(--bg); }
.top { background: var(--navy); color: #fff; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 20px; position: sticky; top: 0; z-index: 5; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand small { display: block; color: #c7d0e6; font-size: 13px; }
.logo { width: 42px; height: 42px; border-radius: 10px; background: var(--amber); color: var(--navy); display: grid; place-items: center; font-weight: 700; font-size: 18px; }
.tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.tab { background: transparent; color: #dfe5f3; border: 1px solid rgba(255,255,255,.25); border-radius: 999px; padding: 8px 16px; font: inherit; cursor: pointer; }
.tab.active { background: var(--amber); color: var(--navy); border-color: var(--amber); font-weight: 700; }
main { max-width: 1400px; margin: 0 auto; padding: 20px; }
.pane { display: none; } .pane.active { display: block; }
.cols { display: grid; grid-template-columns: minmax(320px, 470px) 1fr; gap: 20px; align-items: start; }
@media (max-width: 900px) { .cols { grid-template-columns: 1fr; } }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; margin-bottom: 16px; }
.card.narrow { max-width: 820px; margin: 0 auto 16px; }
.sticky { position: sticky; top: 84px; }
h2 { font-size: 19px; margin: 0 0 10px; }
h2 small { font-weight: 400; font-size: 14px; }
.muted { color: var(--muted); font-size: 14px; margin: 0 0 10px; }
.note { color: var(--muted); font-size: 13px; margin: 6px 0 0; }
.note.warn { color: var(--warn); }
label { display: block; font-weight: 700; font-size: 14px; margin: 10px 0 4px; }
input, select, textarea { width: 100%; font: inherit; font-weight: 400; padding: 9px 11px; border: 1px solid #c9d0de; border-radius: 9px; background: #fff; color: var(--ink); margin-top: 4px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.seedrow { align-items: end; }
.seg { display: flex; flex-wrap: wrap; gap: 6px; }
.seg button { flex: 1; min-width: 90px; font: inherit; padding: 8px 10px; border-radius: 9px; border: 1px solid #c9d0de; background: #fff; cursor: pointer; color: var(--ink); }
.seg button small { display: block; color: var(--muted); font-size: 12px; }
.seg button.on { border-color: var(--accent); background: #eaf1ff; font-weight: 700; box-shadow: inset 0 0 0 1px var(--accent); }
.seg button:disabled { opacity: .4; cursor: not-allowed; }
.types { display: grid; gap: 8px; }
.type { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 10px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 10px; }
.type b { display: block; }
.type span { color: var(--muted); font-size: 13px; }
.stepper { display: flex; align-items: center; gap: 4px; }
.stepper button { width: 34px; height: 34px; border-radius: 8px; border: 1px solid #c9d0de; background: #fff; font-size: 18px; cursor: pointer; color: var(--ink); }
.stepper input { width: 64px; text-align: center; margin: 0; }
.total { margin: 12px 0 0; font-size: 15px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chipgroup { width: 100%; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-top: 8px; }
.chip { font: inherit; font-size: 14px; padding: 6px 12px; border-radius: 999px; border: 1px solid #c9d0de; background: #fff; cursor: pointer; color: var(--ink); }
.chip.on { background: var(--navy); color: #fff; border-color: var(--navy); }
.custom summary { cursor: pointer; font-weight: 700; margin-top: 12px; color: var(--accent); }
.checks { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 12px; }
.checks label { font-weight: 400; display: flex; align-items: center; gap: 8px; margin: 4px 0; }
.checks input { width: auto; margin: 0; }
.presets { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.preset { text-align: left; font: inherit; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: #fafbfd; cursor: pointer; color: var(--ink); }
.preset b { display: block; font-size: 15px; }
.preset span { color: var(--muted); font-size: 13px; }
.preset:hover { border-color: var(--accent); }
.btn { font: inherit; font-weight: 700; padding: 10px 18px; border-radius: 10px; border: 1px solid var(--navy); background: #fff; color: var(--navy); cursor: pointer; }
.btn.big { background: var(--amber); border-color: #d99c17; color: var(--navy); font-size: 17px; padding: 12px 22px; }
.btn.ghost { background: #fff; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.buildbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.progress[hidden] { display: none; }
.progress { margin-top: 12px; display: flex; align-items: center; gap: 12px; }
.bar { flex: 1; height: 10px; background: #e7ebf3; border-radius: 99px; overflow: hidden; }
.bar i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), #48a0ff); transition: width .2s; }
.progress span { font-size: 13px; color: var(--muted); min-width: 170px; }
.stats { margin-top: 10px; font-size: 14px; }
.stats .pill { display: inline-block; background: #eef2f9; border-radius: 99px; padding: 3px 10px; margin: 2px 4px 2px 0; }
.stats .warn { color: var(--warn); font-weight: 700; }
.preview { margin-top: 14px; height: calc(100vh - 260px); min-height: 480px; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: #e9ecf2; }
.preview iframe { width: 100%; height: 100%; border: 0; }
.preview .empty { height: 100%; display: grid; place-content: center; text-align: center; padding: 30px; color: var(--muted); max-width: 520px; margin: 0 auto; }
.swatches { display: flex; gap: 8px; flex-wrap: wrap; }
.swatch { width: 44px; height: 44px; border-radius: 10px; border: 3px solid transparent; cursor: pointer; }
.swatch.on { border-color: var(--accent); }
.out-block { margin-top: 16px; border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.out-block h3 { margin: 0 0 6px; font-size: 15px; display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.out-block pre { white-space: pre-wrap; margin: 0; font: inherit; font-size: 15px; }
.copy { font: inherit; font-size: 13px; padding: 4px 10px; border-radius: 8px; border: 1px solid #c9d0de; background: #fff; cursor: pointer; }
.help li { margin-bottom: 6px; }
.foot { text-align: center; color: var(--muted); font-size: 13px; padding: 20px; }