/* ============================================================
 * Shiwake Admin — stylesheet
 * Layout: sidebar (220px) + main content (max-width 1400px)
 * ============================================================ */

:root {
  --bg: #0e1116;
  --panel: #161b22;
  --panel2: #1c232c;
  --border: #2a323c;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #58a6ff;
  --green: #3fb950;
  --orange: #d29922;
  --pink: #f778ba;
  --red: #f85149;
  --purple: #bc8cff;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
  --sidebar-w: 220px;
}
* { box-sizing: border-box; }
body {
  margin: 0; padding: 0;
  background: var(--bg); color: var(--text);
  font: 14px/1.55 -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  min-height: 100vh;
  display: flex; align-items: stretch;
}

/* ─────────── Sidebar ─────────── */
.sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 20px 14px;
  position: sticky; top: 0; height: 100vh;
  overflow-y: auto;
  display: flex; flex-direction: column;
}
.sidebar .brand {
  font-size: 15px; font-weight: 700; letter-spacing: -0.01em;
  margin: 0 0 4px; padding: 0 4px;
}
.sidebar .brand-sub { color: var(--muted); font-size: 11px; margin: 0 4px 18px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.sidebar nav { display: flex; flex-direction: column; gap: 2px; }
.sidebar .tab-link {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; border-radius: 8px;
  color: var(--muted); text-decoration: none; font-size: 13px;
  transition: background .15s, color .15s;
  cursor: pointer;
}
.sidebar .tab-link:hover { color: var(--text); background: rgba(255, 255, 255, 0.03); }
.sidebar .tab-link.active { color: var(--accent); background: rgba(88, 166, 255, 0.12); }
.sidebar .tab-link .icon { font-size: 15px; width: 18px; text-align: center; }
.sidebar .tab-link .count {
  margin-left: auto; font-size: 10px; font-family: var(--mono);
  background: var(--border); color: var(--muted); padding: 1px 6px; border-radius: 8px;
}
.sidebar .tab-link.active .count { background: var(--accent); color: #0d1117; }
.sidebar .tab-link.danger .count { background: var(--red); color: #0d1117; }
.sidebar .footer { margin-top: auto; padding-top: 20px; }
.sidebar .footer .updated { display: block; color: var(--muted); font-size: 10.5px; margin: 0 4px 8px; word-break: break-all; }
.sidebar .footer .refresh-btn {
  width: 100%; padding: 8px 12px; margin: 0; font-size: 12px;
  background: transparent; border: 1px solid var(--border); color: var(--muted);
  border-radius: 8px; cursor: pointer; font-family: inherit;
}
.sidebar .footer .refresh-btn:hover { color: var(--text); border-color: var(--accent); }
.sidebar .footer .external {
  margin-top: 14px; padding: 0 4px;
  font-size: 10.5px; color: var(--muted); line-height: 1.6;
}
.sidebar .footer .external a { color: var(--muted); display: block; }
.sidebar .footer .external a:hover { color: var(--accent); }

/* ─────────── Main content area + tabs ─────────── */
.main {
  flex: 1; padding: 24px 32px;
  min-width: 0; max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}
.tab-content { display: none; }
.tab-content.active { display: block; }
.tab-content h1 { font-size: 22px; margin: 0 0 6px; letter-spacing: -0.01em; }
.tab-content > .lead { color: var(--muted); margin: 0 0 22px; font-size: 12.5px; }
.tab-content h2 {
  font-size: 13px; margin: 36px 0 12px; padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
  color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em;
  font-weight: 600;
}
.tab-content h2:first-of-type { margin-top: 0; }
.tab-content h2 .q { color: var(--text); font-size: 14px; text-transform: none; letter-spacing: 0; margin-left: 10px; }

/* ─────────── Mobile (sidebar on top) ─────────── */
@media (max-width: 720px) {
  body { flex-direction: column; }
  .sidebar {
    width: 100%; height: auto; position: static;
    border-right: none; border-bottom: 1px solid var(--border);
    padding: 12px 16px;
  }
  .sidebar .brand-sub { display: none; }
  .sidebar .brand { padding-bottom: 8px; margin-bottom: 8px; border-bottom: 1px solid var(--border); }
  .sidebar nav { flex-direction: row; flex-wrap: wrap; gap: 4px; }
  .sidebar .tab-link { padding: 6px 10px; font-size: 12px; }
  .sidebar .footer { display: none; }
  .main { padding: 16px 14px; }
}

/* ─────────── Actions ─────────── */
.actions { display: flex; flex-direction: column; gap: 8px; margin-bottom: 28px; }
.action {
  display: flex; align-items: start; gap: 12px;
  padding: 12px 16px; border-radius: 10px; border: 1px solid;
}
.action.danger { border-color: var(--red); background: rgba(248, 81, 73, 0.08); }
.action.warn { border-color: var(--orange); background: rgba(210, 153, 34, 0.06); }
.action.info { border-color: var(--green); background: rgba(63, 185, 80, 0.05); }
.action .title { font-weight: 600; font-size: 14px; }
.action .detail { color: var(--muted); font-size: 12.5px; margin-top: 3px; }

/* ─────────── Cards ─────────── */
.hero {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px; margin-bottom: 14px;
}
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px 16px;
}
.card .label { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; }
.card .value { font-size: 24px; font-weight: 700; margin-top: 4px; font-family: var(--mono); letter-spacing: -0.02em; }
.card .sub { color: var(--muted); font-size: 11.5px; margin-top: 6px; }
.card.warn .value { color: var(--orange); }
.card.danger .value { color: var(--red); }
.card.good .value { color: var(--green); }
.card.accent .value { color: var(--accent); }
.card.purple .value { color: var(--purple); }
.delta-up { color: var(--green); }
.delta-down { color: var(--red); }

/* ─────────── Tables ─────────── */
table { border-collapse: collapse; width: 100%; font-size: 12.5px; margin-top: 4px; }
th, td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; vertical-align: top; }
th { background: var(--panel2); color: var(--muted); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; }
td.num { text-align: right; font-family: var(--mono); }
td.cost { text-align: right; font-family: var(--mono); color: var(--accent); }
td.warn { color: var(--orange); }
td.err { color: var(--red); }

/* ─────────── Caller mix bar ─────────── */
.mix-bar { display: flex; height: 16px; border-radius: 8px; overflow: hidden; margin-bottom: 8px; }
.mix-seg { transition: opacity .15s; }
.mix-seg:hover { opacity: 0.7; }
.mix-legend { display: flex; flex-wrap: wrap; gap: 10px; font-size: 11.5px; color: var(--muted); }
.mix-legend .sw { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 4px; vertical-align: middle; }

/* ─────────── Bar chart (daily) ─────────── */
.bar-chart { display: flex; align-items: flex-end; gap: 3px; height: 100px; padding: 6px 0; }
.bar { flex: 1; min-width: 6px; border-radius: 2px 2px 0 0; transition: opacity .15s; }
.bar:hover { opacity: 0.7; }
.bar-labels { display: flex; gap: 3px; font-size: 9px; color: var(--muted); }
.bar-labels span { flex: 1; text-align: center; }

/* ─────────── Tree (unit economics) ─────────── */
.tree-card { padding: 14px 16px; }
.tree-node {
  display: grid;
  grid-template-columns: 1fr 110px 60px;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
  font-size: 12.5px;
  border-bottom: 1px dashed transparent;
}
.tree-node.lvl0 { font-weight: 700; font-size: 14px; padding: 8px 0 10px; border-bottom-color: var(--border); margin-bottom: 4px; }
.tree-node.lvl1 { padding-left: 18px; }
.tree-node.lvl2 { padding-left: 36px; color: var(--muted); }
.tree-node .tn-label { display: flex; align-items: center; gap: 6px; min-width: 0; }
.tree-node .tn-label .branch { color: var(--border); font-family: var(--mono); }
.tree-node .tn-label .name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tree-node .tn-label .meta { color: var(--muted); font-size: 11px; margin-left: 6px; }
.tree-node .tn-value { font-family: var(--mono); text-align: right; white-space: nowrap; }
.tree-node .tn-pct {
  text-align: right; font-family: var(--mono); font-size: 11px; color: var(--muted);
  position: relative; padding-right: 4px;
}
.tree-node .tn-bar-bg {
  display: inline-block; width: 100%; height: 4px; background: var(--border);
  border-radius: 2px; margin-bottom: 3px; position: relative; overflow: hidden;
}
.tree-node .tn-bar-fill { position: absolute; left: 0; top: 0; height: 100%; border-radius: 2px; }
.rev-fill { background: var(--green); }
.cost-fill { background: var(--orange); }
.ded-fill { background: var(--red); }
.lvl0 .tn-value { color: var(--text); font-size: 16px; }

.profit-summary {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 16px 20px;
  display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: center; gap: 14px;
  margin-bottom: 14px;
}
.profit-summary .ps-block { text-align: center; }
.profit-summary .ps-label { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; }
.profit-summary .ps-value { font-family: var(--mono); font-size: 22px; font-weight: 700; margin-top: 4px; letter-spacing: -0.02em; }
.profit-summary .ps-op { font-size: 26px; color: var(--muted); font-family: var(--mono); }
.profit-summary .ps-rev { color: var(--green); }
.profit-summary .ps-cost { color: var(--orange); }
.profit-summary .ps-profit-pos { color: var(--green); }
.profit-summary .ps-profit-neg { color: var(--red); }

/* ─────────── Unit Economics headline ─────────── */
.ue-headline { padding: 20px 24px; }
.ue-grid {
  display: grid; grid-template-columns: 280px 1fr;
  gap: 28px; align-items: center;
}
.ue-hero { text-align: center; border-right: 1px solid var(--border); padding-right: 28px; }
.ue-hero .ue-label { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; }
.ue-hero .ue-value {
  font-family: var(--mono); font-size: 42px; font-weight: 700; letter-spacing: -0.02em;
  margin: 8px 0 4px; line-height: 1;
}
.ue-hero .ue-sub { color: var(--muted); font-size: 12px; }
.ue-pos { color: var(--green); }
.ue-neg { color: var(--red); }

.ue-formula {
  font-family: var(--mono); font-size: 12px; color: var(--muted);
  background: #0d1117; padding: 10px 14px; border-radius: 8px;
  margin-bottom: 14px; line-height: 1.7;
}
.ue-formula b { color: var(--text); }
.ue-formula .ue-rev { color: var(--green); }
.ue-formula .ue-cost { color: var(--orange); }

.ue-scale {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px;
  margin-top: 8px;
}
.ue-scale .ue-scale-cell {
  background: #0d1117; border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; text-align: center;
}
.ue-scale .label { color: var(--muted); font-size: 10px; }
.ue-scale .val { font-family: var(--mono); font-size: 16px; font-weight: 600; margin-top: 4px; }

/* ─────────── Funnel EV simulator ─────────── */
.funnel-sim { display: grid; grid-template-columns: 1.3fr 1fr; gap: 20px; padding: 18px 20px; }
.funnel-sim .sliders { display: flex; flex-direction: column; gap: 10px; }
.funnel-sim .sliders-subheader {
  font-size: 10.5px; color: var(--muted);
  text-transform: uppercase; letter-spacing: 0.06em;
  margin: 6px 0 -2px;
  border-top: 1px dashed var(--border);
  padding-top: 10px;
  font-weight: 600;
}
.funnel-sim .slider-row {
  display: grid; grid-template-columns: 130px 1fr 70px; gap: 10px; align-items: center;
  font-size: 12.5px;
}
.funnel-sim .slider-row label { color: var(--muted); }
.funnel-sim .slider-row input[type=range] {
  accent-color: var(--accent); width: 100%; margin: 0;
}
.funnel-sim .slider-row .value {
  font-family: var(--mono); font-size: 13px; text-align: right; color: var(--text);
  font-weight: 600;
}
.funnel-sim .results { background: #0d1117; border-radius: 10px; padding: 14px 16px; }
.funnel-sim .result-row {
  display: grid; grid-template-columns: 1fr auto; gap: 10px; padding: 5px 0;
  font-size: 12.5px; border-bottom: 1px dashed var(--border);
}
.funnel-sim .result-row:last-child { border-bottom: none; }
.funnel-sim .result-row .lbl { color: var(--muted); }
.funnel-sim .result-row .val { font-family: var(--mono); font-weight: 600; text-align: right; }
.funnel-sim .result-row.headline { padding: 8px 0; }
.funnel-sim .result-row.headline .lbl { color: var(--text); font-weight: 600; }
.funnel-sim .result-row.headline .val { font-size: 18px; }
.ratio-good { color: var(--green); }
.ratio-warn { color: var(--orange); }
.ratio-bad { color: var(--red); }

.preset-buttons { display: flex; gap: 8px; margin-bottom: 10px; }
.preset-btn {
  flex: 1; background: var(--panel2); border: 1px solid var(--border); color: var(--text);
  padding: 8px 12px; border-radius: 8px; font-size: 12px; cursor: pointer;
  font-family: inherit;
}
.preset-btn:hover { border-color: var(--accent); }
.preset-btn.active { border-color: var(--accent); background: rgba(88, 166, 255, 0.12); color: var(--accent); }

.scale-projection {
  margin-top: 12px; padding: 12px 14px; background: #0d1117;
  border-radius: 8px; border: 1px solid var(--border);
}
.scale-projection h4 { margin: 0 0 8px; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }

/* ─────────── Scenario charts ─────────── */
.scenario-chart { background: #0d1117; border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; }
.scenario-chart .title { font-size: 13px; color: var(--muted); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.05em; }
.scenario-chart svg { width: 100%; height: auto; display: block; }
.scenario-chart .legend { display: flex; gap: 14px; font-size: 11.5px; margin-top: 8px; flex-wrap: wrap; }
.scenario-chart .legend .item { display: flex; align-items: center; gap: 6px; }
.scenario-chart .legend .swatch { width: 12px; height: 3px; border-radius: 2px; }
.scenario-chart .key-values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin-top: 8px; font-size: 11px; }
.scenario-chart .key-values .col { padding: 6px 8px; border-radius: 6px; background: rgba(255, 255, 255, 0.02); }
.scenario-chart .key-values .col .h { color: var(--muted); }
.scenario-chart .key-values .col .v { font-family: var(--mono); margin-top: 2px; }

/* ─────────── Misc layout ─────────── */
.row { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 14px; }

code { background: #21262d; padding: 1px 6px; border-radius: 4px; font-size: 11.5px; font-family: var(--mono); }
.small { font-size: 11.5px; color: var(--muted); }
.pill { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 11px; font-family: var(--mono); border: 1px solid; }
.pill.free { color: var(--muted); border-color: var(--border); }
.pill.premium { color: var(--orange); border-color: var(--orange); background: rgba(210, 153, 34, 0.08); }

/* ─────────── Login overlay ─────────── */
.login { position: fixed; inset: 0; background: var(--bg); display: flex; align-items: center; justify-content: center; padding: 24px; z-index: 200; }
.login-card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 28px 32px; max-width: 360px; width: 100%; }
.login h1 { font-size: 18px; margin-bottom: 16px; }
.login input { width: 100%; padding: 10px 12px; background: #0d1117; border: 1px solid var(--border); border-radius: 8px; color: var(--text); font-size: 14px; margin-top: 4px; font-family: var(--mono); }
.login button { width: 100%; padding: 10px; background: var(--accent); color: #0d1117; border: none; border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer; margin-top: 14px; }
.login .err { color: var(--red); font-size: 12px; margin-top: 10px; }

.refresh-btn { background: transparent; border: 1px solid var(--border); color: var(--muted); padding: 4px 12px; border-radius: 6px; font-size: 12px; cursor: pointer; }
.refresh-btn:hover { color: var(--text); border-color: var(--accent); }
.help { color: var(--muted); font-size: 11px; margin-top: 2px; font-style: italic; }

/* ─────────── Waitlist table + email send ─────────── */
.wl-toolbar { display: flex; gap: 8px; align-items: center; margin-bottom: 8px; flex-wrap: wrap; }
.wl-toolbar .selected-count { color: var(--muted); font-size: 12px; margin-left: 4px; }
.wl-toolbar .primary-btn {
  background: var(--accent); color: #0d1117; border: none; padding: 6px 14px;
  border-radius: 6px; font-size: 12px; font-weight: 600; cursor: pointer;
  font-family: inherit;
}
.wl-toolbar .primary-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.wl-toolbar .primary-btn:hover:not(:disabled) { background: #79b8ff; }
.wl-toolbar .danger-btn {
  background: transparent; color: var(--red); border: 1px solid var(--red);
  padding: 6px 14px; border-radius: 6px; font-size: 12px; font-weight: 600; cursor: pointer;
  font-family: inherit;
}
.wl-toolbar .danger-btn:disabled { opacity: 0.35; cursor: not-allowed; border-color: var(--border); color: var(--muted); }
.wl-toolbar .danger-btn:hover:not(:disabled) { background: rgba(248, 81, 73, 0.1); }

/* Preview modal の中身 */
.preview-subject {
  padding: 10px 12px; background: #0d1117; border: 1px solid var(--border); border-radius: 6px;
  font-size: 13.5px; font-weight: 600; color: var(--text); word-break: break-all;
}
.preview-meta-line {
  padding: 6px 12px; background: #0d1117; border: 1px solid var(--border); border-radius: 6px;
  font-family: var(--mono); font-size: 12px; color: var(--muted);
}
.preview-iframe-wrap {
  margin-top: 4px; background: #fff; border-radius: 8px; overflow: hidden;
}
.badge { display: inline-block; padding: 1px 7px; border-radius: 999px; font-size: 10px; font-family: var(--mono); border: 1px solid; }
.badge.unsub { color: var(--red); border-color: var(--red); background: rgba(248, 81, 73, 0.08); }
.badge.sent { color: var(--green); border-color: var(--green); background: rgba(63, 185, 80, 0.06); }
.wl-row.unsub { opacity: 0.55; }
#waitlistTable td.checkbox-col, #waitlistTable th.checkbox-col { width: 28px; text-align: center; padding: 4px 6px; }
#waitlistTable input[type=checkbox] { accent-color: var(--accent); cursor: pointer; }

/* ─────────── Email send modal ─────────── */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.7);
  display: none; align-items: flex-start; justify-content: center;
  padding: 60px 20px 20px; z-index: 100; overflow-y: auto;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  max-width: 640px; width: 100%; padding: 24px 28px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.modal h2 { font-size: 16px; margin: 0 0 8px; padding: 0; border: none; text-transform: none; letter-spacing: 0; color: var(--text); }
.modal .modal-lead { color: var(--muted); font-size: 12px; margin: 0 0 18px; }
.modal label { display: block; font-size: 12px; color: var(--muted); margin: 12px 0 4px; text-transform: uppercase; letter-spacing: 0.05em; }
.modal select, .modal input[type=text], .modal input[type=url], .modal textarea {
  width: 100%; padding: 8px 10px;
  background: #0d1117; border: 1px solid var(--border); border-radius: 6px;
  color: var(--text); font-size: 13px; font-family: inherit;
}
.modal textarea { min-height: 120px; resize: vertical; font-family: var(--mono); }
.modal .template-desc { font-size: 11.5px; color: var(--muted); margin-top: 4px; }
.modal .recipients-summary {
  background: #0d1117; border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; font-size: 12px; margin-bottom: 8px;
  max-height: 120px; overflow-y: auto;
}
.modal .recipients-summary .em { color: var(--accent); font-weight: 600; }
.modal .modal-actions { display: flex; gap: 8px; margin-top: 22px; justify-content: flex-end; }
.modal .btn {
  padding: 8px 16px; border-radius: 6px; font-size: 13px; cursor: pointer;
  border: 1px solid var(--border); background: transparent; color: var(--text); font-family: inherit;
}
.modal .btn:hover { border-color: var(--muted); }
.modal .btn.primary { background: var(--accent); color: #0d1117; border-color: var(--accent); font-weight: 600; }
.modal .btn.primary:hover { background: #79b8ff; border-color: #79b8ff; }
.modal .btn.danger { background: var(--red); color: #0d1117; border-color: var(--red); font-weight: 600; }
.modal .btn:disabled { opacity: 0.4; cursor: not-allowed; }
.modal .progress-line { font-size: 12px; color: var(--muted); margin-top: 12px; font-family: var(--mono); }
.modal .result-summary { margin-top: 12px; }
.modal .result-summary .summary-line { font-size: 13px; padding: 8px 12px; border-radius: 6px; }
.modal .result-summary .summary-line.ok { background: rgba(63, 185, 80, 0.1); color: var(--green); }
.modal .result-summary .summary-line.warn { background: rgba(210, 153, 34, 0.1); color: var(--orange); }
.modal .result-summary .summary-line.fail { background: rgba(248, 81, 73, 0.1); color: var(--red); }
.modal .result-list {
  margin-top: 8px; max-height: 240px; overflow: auto;
  background: #0d1117; border: 1px solid var(--border); border-radius: 6px;
  font-family: var(--mono); font-size: 11px;
}
.modal .result-list .ri { padding: 4px 10px; border-bottom: 1px solid var(--border); }
.modal .result-list .ri:last-child { border: none; }
.modal .result-list .ri.sent { color: var(--green); }
.modal .result-list .ri.skipped { color: var(--muted); }
.modal .result-list .ri.failed { color: var(--red); }

/* ─────────── Architecture review tab ─────────── */
.arch-toc {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin: 0 0 28px;
  padding: 14px 16px;
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
}
.arch-toc a {
  font-size: 12px; color: var(--muted); text-decoration: none;
  padding: 4px 10px; border-radius: 6px; background: var(--panel2);
  white-space: nowrap;
}
.arch-toc a:hover { color: var(--accent); background: rgba(88, 166, 255, 0.08); }

.tab-content h2 + .arch-card,
.arch-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 18px 22px; margin: 0 0 24px;
}
.arch-card h3 {
  font-size: 12px; font-weight: 600; color: var(--muted);
  text-transform: uppercase; letter-spacing: 0.08em;
  margin: 18px 0 8px; padding-bottom: 4px; border-bottom: 1px dashed var(--border);
}
.arch-card h3:first-child { margin-top: 0; }
.arch-card ul { margin: 6px 0 0; padding-left: 22px; font-size: 13px; line-height: 1.7; }
.arch-card ul li { margin-bottom: 4px; }
.arch-card ul li b { color: var(--text); }
.arch-card p { margin: 0 0 8px; font-size: 13px; }
.arch-card table { font-size: 12px; }
.arch-card table td { padding: 6px 10px; vertical-align: top; }

/* Mermaid container — dark theme friendly */
.arch-card .mermaid {
  background: #0d1117; border: 1px solid var(--border); border-radius: 8px;
  padding: 18px 14px; margin: 8px 0 16px;
  text-align: center; overflow: auto;
  /* before mermaid renders, show source as monospace */
  font-family: var(--mono); font-size: 11px; color: var(--muted);
  white-space: pre;
  line-height: 1.5;
}
.arch-card .mermaid[data-processed="true"] {
  white-space: normal; font-family: inherit;
}
.arch-card .mermaid svg {
  max-width: 100%; height: auto;
}

/* ─────────── Stage timeline cards ─────────── */
.stage-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
  margin-bottom: 14px;
}
.stage-card {
  background: var(--panel); border: 1px solid var(--border);
  border-left: 3px solid var(--border);
  border-radius: 10px; padding: 14px 16px;
}
.stage-card .stage-head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 4px;
}
.stage-card .stage-name { font-weight: 700; font-size: 14px; }
.stage-card .stage-months { color: var(--muted); font-size: 11px; font-family: var(--mono); }
.stage-card .stage-meta { color: var(--muted); font-size: 11px; margin-bottom: 10px; line-height: 1.5; }
.stage-card .slider-row {
  display: grid; grid-template-columns: 90px 1fr 80px;
  gap: 8px; align-items: center;
  font-size: 12px; padding: 4px 0;
}
.stage-card .slider-row label { color: var(--muted); }
.stage-card .slider-row input[type=range] { accent-color: var(--accent); width: 100%; margin: 0; }
.stage-card .slider-row .value {
  font-family: var(--mono); font-size: 12px; text-align: right;
  color: var(--text); font-weight: 600;
}
.stage-card .stage-budget {
  margin-top: 8px; padding-top: 8px; border-top: 1px dashed var(--border);
  font-size: 11px; color: var(--muted); font-family: var(--mono); text-align: right;
}
@media (max-width: 900px) {
  .stage-grid { grid-template-columns: 1fr; }
}

/* ─────────── Docs (spec) tab ─────────── */
.doc-gap {
  background: rgba(248, 81, 73, 0.06);
  border: 1px solid rgba(248, 81, 73, 0.5);
  border-radius: 10px; padding: 12px 16px; margin: 0 0 22px;
}
.doc-gap h3 { margin: 0 0 6px; font-size: 11px; color: var(--red); text-transform: uppercase; letter-spacing: 0.06em; border: none; padding: 0; }
.doc-gap ul { margin: 4px 0 0; padding-left: 20px; font-size: 12.5px; line-height: 1.6; }
.doc-gap li { margin: 3px 0; }
.doc-gap code { background: rgba(0,0,0,0.4); padding: 1px 5px; border-radius: 3px; font-family: var(--mono); font-size: 11.5px; color: var(--orange); }

.doc-screen { margin-bottom: 18px; }
.doc-screen-head {
  background: linear-gradient(180deg, var(--panel2) 0%, var(--panel) 100%);
  border: 1px solid var(--border); border-radius: 10px 10px 0 0;
  border-bottom: none; padding: 12px 16px;
}
.doc-screen-head h3 {
  margin: 0 0 4px; font-size: 15px; color: var(--text);
  text-transform: none; letter-spacing: 0; border: none; padding: 0;
  font-weight: 700;
  display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap;
}
.doc-screen-head h3 .file { font-family: var(--mono); font-size: 10.5px; color: var(--muted); font-weight: 400; }
.doc-screen-head .role { color: var(--muted); font-size: 12.5px; margin: 4px 0 0; }
.doc-screen-head .trigger {
  color: var(--text); font-size: 11.5px; margin-top: 6px;
  background: rgba(88, 166, 255, 0.08); padding: 3px 8px; border-radius: 5px;
  display: inline-block;
}
.doc-screen-head .trigger b { color: var(--accent); font-weight: 600; margin-right: 6px; font-size: 10px; }

.doc-screen-body {
  background: var(--panel); border: 1px solid var(--border); border-radius: 0 0 10px 10px;
  padding: 14px 16px; display: grid; grid-template-columns: 1fr; gap: 16px;
}
@media (min-width: 1100px) {
  .doc-screen-body { grid-template-columns: 1fr 1fr; }
  .doc-screen-body .full { grid-column: 1 / -1; }
}

.doc-req h4 {
  margin: 0 0 6px; font-size: 10px; color: var(--muted);
  text-transform: uppercase; letter-spacing: 0.08em; font-weight: 600;
  border-bottom: 1px dashed var(--border); padding-bottom: 4px;
}
.doc-req h4 .sw { display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }
.doc-req ul { list-style: none; margin: 0; padding: 0; }
.doc-req li {
  padding: 4px 0 4px 4px; font-size: 12.5px; line-height: 1.5;
  display: grid; grid-template-columns: 78px 1fr; gap: 8px;
  border-bottom: 1px dashed var(--border);
}
.doc-req li:last-child { border-bottom: none; }
.doc-req li .tag {
  font-family: var(--mono); font-size: 10px;
  background: var(--panel2); padding: 1px 5px; border-radius: 3px;
  text-align: center; align-self: start; margin-top: 1px;
}
.doc-req li.fr .tag { color: var(--accent); }
.doc-req li.nfr .tag { color: var(--purple); }
.doc-req li code { background: var(--panel2); padding: 0 4px; border-radius: 3px; font-family: var(--mono); font-size: 11px; color: var(--text); }

.doc-meta {
  display: grid; grid-template-columns: 64px 1fr; gap: 8px 12px;
  font-size: 12px;
}
.doc-meta dt { color: var(--muted); padding-top: 2px; font-weight: 600; font-size: 10px; text-transform: uppercase; letter-spacing: 0.05em; }
.doc-meta dd { margin: 0; }
.doc-meta dd .pill {
  display: inline-block; background: var(--panel2); border: 1px solid var(--border);
  padding: 1px 7px; border-radius: 9px; font-size: 10.5px; margin: 2px 3px 2px 0;
  font-family: var(--mono); color: var(--text);
}
.doc-meta dd .pill.api { color: var(--teal, #56d4dd); }
.doc-meta dd .pill.tbl { color: var(--green); }
.doc-meta dd .edge { color: var(--orange); font-size: 11.5px; }

/* API catalog */
.doc-api-toolbar {
  display: flex; gap: 8px; align-items: center; margin: 0 0 14px; flex-wrap: wrap;
}
.doc-api-toolbar input[type=text] {
  flex: 1; min-width: 220px;
  background: var(--panel2); border: 1px solid var(--border); color: var(--text);
  padding: 7px 12px; border-radius: 8px; font: inherit; font-size: 12.5px;
}
.doc-api-toolbar input[type=text]:focus { outline: none; border-color: var(--accent); }
.doc-api-toolbar .chip {
  background: var(--panel2); border: 1px solid var(--border); color: var(--muted);
  padding: 4px 10px; border-radius: 13px; font-size: 11px; cursor: pointer;
  font: inherit; font-weight: 600;
}
.doc-api-toolbar .chip:hover { color: var(--text); }
.doc-api-toolbar .chip.active { background: rgba(88, 166, 255, 0.12); border-color: var(--accent); color: var(--accent); }
.doc-api-toolbar .chip .n { font-weight: 400; margin-left: 4px; opacity: 0.7; }

.doc-api-group { margin-bottom: 18px; }
.doc-api-group h3 {
  font-size: 11px; color: var(--muted); margin: 0 0 6px;
  text-transform: uppercase; letter-spacing: 0.08em;
  border-bottom: 1px dashed var(--border); padding-bottom: 4px; font-weight: 600;
}
table.doc-api {
  width: 100%; border-collapse: collapse; font-size: 12px;
  background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
  overflow: hidden;
}
table.doc-api th, table.doc-api td {
  padding: 6px 10px; text-align: left; vertical-align: top;
  border-bottom: 1px solid var(--border);
}
table.doc-api tr:last-child td { border-bottom: none; }
table.doc-api th {
  background: var(--panel2); color: var(--muted); font-size: 10px;
  text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600;
}
table.doc-api tr.hidden { display: none; }
table.doc-api .method {
  font-family: var(--mono); font-size: 10px; font-weight: 700;
  padding: 2px 6px; border-radius: 3px; display: inline-block; min-width: 46px; text-align: center;
}
table.doc-api .method.GET { background: rgba(63, 185, 80, 0.12); color: var(--green); }
table.doc-api .method.POST { background: rgba(88, 166, 255, 0.12); color: var(--accent); }
table.doc-api .method.PUT { background: rgba(210, 153, 34, 0.12); color: var(--orange); }
table.doc-api .method.DELETE { background: rgba(248, 81, 73, 0.12); color: var(--red); }
table.doc-api .path { font-family: var(--mono); font-size: 11.5px; color: var(--teal, #56d4dd); }
table.doc-api .auth {
  font-family: var(--mono); font-size: 10px; padding: 1px 5px; border-radius: 3px;
}
table.doc-api .auth.bearer { background: rgba(86, 212, 221, 0.12); color: var(--teal, #56d4dd); }
table.doc-api .auth.basic { background: rgba(188, 140, 255, 0.12); color: var(--purple); }
table.doc-api .auth.none { color: var(--muted); }
table.doc-api .note { color: var(--orange); font-size: 10.5px; }