:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1d212b;
  --line: #2a2f3a;
  --ink: #e8ebf0;
  --ink-soft: #aab2c0;
  --ink-mute: #717a8a;
  --accent: #4f8cff;
  --accent-soft: #1e2c47;
  --gold: #f0b429;
  --good: #3ad29f;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: radial-gradient(1200px 600px at 80% -10%, #1a2030 0%, var(--bg) 55%) fixed;
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  background: rgba(15, 17, 21, 0.82);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { font-size: 26px; line-height: 1; }
.brand-name { font-weight: 700; font-size: 17px; letter-spacing: .2px; }
.brand-sub { font-size: 12px; color: var(--ink-mute); }
.ghost-link { color: var(--ink-soft); text-decoration: none; font-size: 14px; padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; }
.ghost-link:hover { color: var(--ink); border-color: var(--accent); }

/* ---------- Layout ---------- */
.layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 22px;
  padding-top: 28px;
  padding-bottom: 28px;
  align-items: start;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.picker { padding: 22px; position: sticky; top: 84px; }
.output { padding: 8px 6px; min-height: 60vh; }

.picker-title { font-size: 20px; margin: 0 0 6px; }
.picker-lead { margin: 0 0 18px; color: var(--ink-soft); font-size: 14px; }
.picker-lead strong { color: var(--ink); }

.field { margin-bottom: 18px; }
.field > label { display: block; font-size: 13px; color: var(--ink-soft); margin-bottom: 8px; font-weight: 600; }
.field-hint { margin: 8px 2px 0; font-size: 12px; color: var(--ink-mute); min-height: 16px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  appearance: none; cursor: pointer;
  border: 1px solid var(--line); background: var(--panel-2);
  color: var(--ink-soft);
  padding: 7px 12px; border-radius: 999px; font-size: 13px;
  transition: all .15s ease; font-family: inherit;
}
.chip:hover { border-color: var(--accent); color: var(--ink); }
.chip[aria-pressed="true"] {
  background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600;
  box-shadow: 0 4px 14px rgba(79, 140, 255, .35);
}

.actions { display: flex; gap: 8px; margin-top: 22px; flex-wrap: wrap; }
.btn {
  flex: 1 1 auto; cursor: pointer; font-family: inherit;
  border: 1px solid var(--line); background: var(--panel-2); color: var(--ink);
  padding: 10px 12px; border-radius: 10px; font-size: 13px; font-weight: 600;
  transition: all .15s ease; white-space: nowrap;
}
.btn:hover { border-color: var(--accent); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); }
.save-note { margin: 12px 2px 0; font-size: 11px; color: var(--ink-mute); }

/* ---------- Output content ---------- */
.summary-bar {
  display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center;
  padding: 16px 18px; margin: 6px; border-radius: 10px;
  background: linear-gradient(120deg, var(--accent-soft), transparent);
  border: 1px solid var(--line);
}
.summary-bar .tag { font-size: 12px; color: var(--ink-soft); }
.summary-bar .tag b { color: var(--ink); font-weight: 700; }
.summary-bar .time { margin-left: auto; font-size: 12px; color: var(--gold); font-weight: 600; }

.mission { margin: 6px; padding: 12px 16px; border-left: 3px solid var(--accent); color: var(--ink-soft); font-size: 13.5px; background: var(--panel-2); border-radius: 0 8px 8px 0; }
.mission .lens { display: block; margin-top: 6px; color: var(--ink-mute); }

.block { margin: 18px 6px 6px; }
.block-head { display: flex; align-items: baseline; gap: 10px; padding: 0 12px 8px; border-bottom: 1px solid var(--line); margin-bottom: 12px; }
.block-num { width: 24px; height: 24px; flex: 0 0 24px; border-radius: 7px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; font-size: 13px; font-weight: 700; }
.block-title { font-size: 15px; font-weight: 700; margin: 0; }
.block-desc { font-size: 12px; color: var(--ink-mute); margin-left: auto; }

.q-list { list-style: none; margin: 0; padding: 0 12px; display: flex; flex-direction: column; gap: 8px; }
.q-item { background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.q-item.simple { display: flex; gap: 10px; align-items: flex-start; }
.q-item.simple .dot { color: var(--accent); flex: 0 0 auto; margin-top: 2px; }

.q-main { display: flex; gap: 10px; align-items: flex-start; cursor: pointer; }
.q-idx { flex: 0 0 auto; color: var(--ink-mute); font-weight: 700; font-variant-numeric: tabular-nums; }
.q-text { font-size: 14.5px; font-weight: 600; }
.q-star { color: var(--gold); font-size: 12px; margin-left: 4px; }
.q-why { margin: 8px 0 0 26px; font-size: 12.5px; color: var(--ink-mute); }
.q-why::before { content: "🎯 "; }
.q-sub { margin: 10px 0 0 26px; }
.q-sub h4 { font-size: 11.5px; text-transform: uppercase; letter-spacing: .6px; color: var(--ink-mute); margin: 8px 0 4px; }
.q-sub ul { margin: 0; padding-left: 18px; }
.q-sub li { font-size: 13px; color: var(--ink-soft); margin: 2px 0; }
.q-sub.follow li::marker { color: var(--accent); }

/* checklists */
.check-list { list-style: none; margin: 0; padding: 0 12px; display: flex; flex-direction: column; gap: 6px; }
.check-item { display: flex; gap: 10px; align-items: flex-start; background: var(--panel-2); border: 1px solid var(--line); border-radius: 9px; padding: 10px 12px; cursor: pointer; }
.check-item input { margin-top: 3px; width: 16px; height: 16px; accent-color: var(--good); cursor: pointer; flex: 0 0 auto; }
.check-item span { font-size: 13.5px; color: var(--ink-soft); }
.check-item.done span { color: var(--ink-mute); text-decoration: line-through; }
.hypo .check-item input { accent-color: var(--gold); }

.empty { text-align: center; color: var(--ink-mute); padding: 80px 20px; }
.empty .big { font-size: 40px; }

/* ---------- How section ---------- */
.how { padding: 14px 20px 40px; }
.how h2 { font-size: 18px; margin: 0 0 16px; }
.how-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.how-card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; }
.how-card h3 { margin: 0 0 8px; font-size: 14.5px; color: var(--accent); }
.how-card p { margin: 0; font-size: 13px; color: var(--ink-soft); }
.disclaimer { margin: 18px 0 0; font-size: 12px; color: var(--ink-mute); }

.footer { border-top: 1px solid var(--line); padding: 20px 0; color: var(--ink-mute); font-size: 12px; text-align: center; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(20px);
  background: var(--good); color: #06231a; font-weight: 700; font-size: 13px;
  padding: 10px 18px; border-radius: 999px; opacity: 0; pointer-events: none;
  transition: all .25s ease; z-index: 50; box-shadow: var(--shadow);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .picker { position: static; }
  .how-grid { grid-template-columns: 1fr; }
  .brand-sub { display: none; }
}
@media (max-width: 480px) {
  .wrap { padding: 0 14px; }
  .actions .btn { flex: 1 1 100%; }
  .summary-bar .time { margin-left: 0; }
}

/* ---------- Print ---------- */
@media print {
  body { background: #fff; color: #111; }
  .topbar, .picker, .how, .footer, .toast, .block-desc { display: none !important; }
  .layout { display: block; padding: 0; }
  .panel { box-shadow: none; border: none; background: #fff; }
  .q-item, .check-item, .summary-bar, .mission { background: #f6f7f9 !important; border-color: #ddd !important; color: #111; }
  .q-text, .q-why, .q-sub li, .check-item span, .summary-bar .tag b { color: #111 !important; }
}