:root {
  --bg: #f4f6fa;
  --panel: #ffffff;
  --ink: #0f1b2d;
  --muted: #5b6678;
  --line: #dde3ec;
  --accent: #ff6415;
  --accent-ink: #ffffff;
  --focus: #2f6fdb;
  --s-none: #8a94a6;
  --s-progress: #2f6fdb;
  --s-pass: #1f9d55;
  --s-fail: #d64545;
  --s-blocked: #c98a00;
  --s-waived: #7b5cd6;
  --p0: #d64545;
  --p1: #c98a00;
  --p2: #6b7a90;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1424;
    --panel: #121e33;
    --ink: #e8eef8;
    --muted: #9aa8bd;
    --line: #23324d;
    --focus: #6ea0ff;
    --s-none: #7d889c;
    --s-progress: #5b8ff0;
    --s-pass: #38b673;
    --s-fail: #ef6464;
    --s-blocked: #e0a92a;
    --s-waived: #a08bf0;
    --p0: #ef6464;
    --p1: #e0a92a;
    --p2: #8d9ab0;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
[hidden] { display: none !important; }
a { color: var(--focus); }
code { font: 0.9em ui-monospace, SFMono-Regular, Menlo, monospace; background: color-mix(in srgb, var(--line) 60%, transparent); padding: 1px 4px; border-radius: 4px; }
.muted { color: var(--muted); }
.error { color: var(--s-fail); min-height: 1.2em; margin: 4px 0; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; }

input, select, textarea, button { font: inherit; color: inherit; }
input, select, textarea {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 7px 9px;
  min-width: 0;
}
input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; }
.btn {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 7px 12px;
  cursor: pointer;
}
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.btn.small { padding: 4px 10px; font-size: 13px; }
.link { background: none; border: 0; color: var(--focus); cursor: pointer; padding: 6px 0; }

.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; }
.brand-mark {
  width: 26px; height: 26px; border-radius: 6px; background: var(--accent); color: #fff;
  display: inline-grid; place-items: center; font-weight: 800;
}

/* Sign in */
.signin { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.signin-card { width: 100%; max-width: 380px; padding: 24px; display: grid; gap: 12px; }
.signin-card label { display: grid; gap: 4px; font-size: 14px; }
.row-buttons { display: flex; gap: 8px; flex-wrap: wrap; }

/* App shell */
.topbar {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 16px; background: var(--panel); border-bottom: 1px solid var(--line);
}
.topbar-right { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.me { font-size: 13px; }
.sync { font-size: 12px; }
.layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 20px; max-width: 1500px; margin: 0 auto; padding: 16px; }
.toc { position: sticky; top: 64px; align-self: start; max-height: calc(100vh - 80px); overflow: auto; font-size: 14px; }
.toc a { display: flex; justify-content: space-between; gap: 8px; padding: 6px 8px; border-radius: 6px; color: var(--ink); text-decoration: none; }
.toc a:hover { background: var(--panel); }
.toc .toc-count { color: var(--muted); font-size: 12px; white-space: nowrap; }
main { min-width: 0; }

/* Summary */
.summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 14px; }
.stat { padding: 14px; }
.stat .label { font-size: 13px; color: var(--muted); }
.stat .value { font-size: 26px; font-weight: 700; margin-top: 2px; }
.stat .sub { font-size: 12px; color: var(--muted); }
.bar { display: flex; height: 8px; border-radius: 4px; overflow: hidden; background: var(--line); margin-top: 8px; }
.bar span { display: block; height: 100%; }
.legend { display: flex; flex-wrap: wrap; gap: 4px 12px; font-size: 12px; color: var(--muted); margin-top: 8px; }
.legend i { display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin-right: 4px; vertical-align: -1px; }

.filters { display: flex; flex-wrap: wrap; gap: 8px; padding: 10px; margin-bottom: 18px; align-items: center; position: sticky; top: 52px; z-index: 4; }
.filters input[type=search] { flex: 1 1 220px; }
.check { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; }

/* Content */
.section { margin: 0 0 34px; scroll-margin-top: 120px; }
.section h2 { font-size: 21px; margin: 0 0 8px; display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.section h2 .sec-progress { font-size: 13px; font-weight: 500; color: var(--muted); }
.section p { margin: 8px 0; max-width: 80ch; }
.section ul, .section ol { margin: 8px 0; padding-left: 22px; max-width: 80ch; }
.static-table { width: 100%; border-collapse: collapse; margin: 8px 0 14px; font-size: 14px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.static-table th, .static-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.static-table th { font-size: 13px; color: var(--muted); font-weight: 600; }
.static-table tr:last-child td { border-bottom: 0; }

/* Tracked rows */
.rows { display: grid; gap: 8px; margin: 8px 0 16px; }
.trow {
  display: grid;
  grid-template-columns: 92px minmax(0, 1.3fr) minmax(0, 1fr) 44px 150px 150px;
  gap: 12px; align-items: start; padding: 12px; border-left: 4px solid var(--s-none);
}
.trow[data-status="In progress"] { border-left-color: var(--s-progress); }
.trow[data-status="Pass"] { border-left-color: var(--s-pass); }
.trow[data-status="Fail"] { border-left-color: var(--s-fail); }
.trow[data-status="Blocked"] { border-left-color: var(--s-blocked); }
.trow[data-status="Waived"] { border-left-color: var(--s-waived); }
.tid { font-weight: 700; font-size: 13px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.tcell .k { display: none; font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.tcell.extra { grid-column: 2 / 4; font-size: 14px; color: var(--muted); }
.pri { font-size: 12px; font-weight: 700; padding: 2px 6px; border-radius: 5px; border: 1px solid currentColor; justify-self: start; }
.pri.P0 { color: var(--p0); } .pri.P1 { color: var(--p1); } .pri.P2 { color: var(--p2); }
.status-select { width: 100%; font-weight: 600; }
.status-select.s-pass { color: var(--s-pass); } .status-select.s-fail { color: var(--s-fail); }
.status-select.s-progress { color: var(--s-progress); } .status-select.s-blocked { color: var(--s-blocked); }
.status-select.s-waived { color: var(--s-waived); }
.owner-input { width: 100%; }
.notes { grid-column: 2 / -1; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; align-items: start; }
.notes textarea { width: 100%; min-height: 36px; resize: vertical; font-size: 14px; }
.meta { grid-column: 2 / -1; display: flex; gap: 12px; flex-wrap: wrap; font-size: 12px; color: var(--muted); }
.save-state.err { color: var(--s-fail); }
.head-row { display: grid; grid-template-columns: 92px minmax(0, 1.3fr) minmax(0, 1fr) 44px 150px 150px; gap: 12px; padding: 0 12px; font-size: 12px; color: var(--muted); font-weight: 600; }

/* Checklists */
.checklist { list-style: none; padding: 0 !important; display: grid; gap: 6px; }
.checklist li { display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: start; padding: 10px 12px; }
.checklist input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--s-pass); }
.checklist .who { display: block; font-size: 12px; color: var(--muted); }
.checklist li.done .text { text-decoration: line-through; color: var(--muted); }

/* Gates flow */
.gates { display: grid; gap: 0; max-width: 720px; margin: 12px 0; }
.phase { padding: 12px 14px; }
.phase b { display: block; }
.gate { display: grid; grid-template-columns: 140px 1fr; gap: 12px; align-items: center; padding: 10px 0 10px 18px; border-left: 2px solid var(--line); margin-left: 40px; }
.gate .diamond { justify-self: start; padding: 6px 12px; border: 1.5px solid var(--muted); border-radius: 6px; transform: none; font-weight: 700; font-size: 13px; }
.gate.final .diamond { border-color: var(--accent); color: var(--accent); }
.connector { height: 20px; border-left: 2px solid var(--line); margin-left: 40px; }
.gate .crit b { display: block; font-size: 14px; }
.gate .crit span { font-size: 13px; color: var(--muted); }

/* Drawer */
.scrim { position: fixed; inset: 0; background: rgba(0, 0, 0, .35); z-index: 20; }
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: min(460px, 100vw); z-index: 21;
  background: var(--panel); border-left: 1px solid var(--line); display: grid; grid-template-rows: auto 1fr;
}
.drawer-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.drawer-head h2 { margin: 0; font-size: 17px; }
.drawer-body { overflow: auto; padding: 14px 16px; }
.hist { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; font-size: 14px; }
.hist li { border-bottom: 1px solid var(--line); padding-bottom: 8px; }
.hist .when { font-size: 12px; color: var(--muted); }
.drawer textarea { width: 100%; min-height: 220px; }

.empty { padding: 24px; text-align: center; color: var(--muted); }

@media (max-width: 1100px) {
  .trow, .head-row { grid-template-columns: 84px minmax(0, 1fr) minmax(0, 1fr) 44px; }
  .trow .status-cell, .trow .owner-cell { grid-column: span 2; }
  .head-row .h-status, .head-row .h-owner { display: none; }
}
@media (max-width: 860px) {
  .layout { grid-template-columns: minmax(0, 1fr); padding: 12px 16px; }
  .summary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .filters select { flex: 1 1 140px; }
  .topbar { flex-wrap: wrap; }
  .toc { position: static; max-height: none; display: flex; overflow-x: auto; gap: 4px; padding-bottom: 4px; }
  .toc a { white-space: nowrap; background: var(--panel); border: 1px solid var(--line); }
  .filters { position: static; }
  .section { scroll-margin-top: 16px; }
  .trow .tid, .trow .pri-cell { grid-row: 1; }
  .head-row { display: none; }
  .trow { grid-template-columns: 1fr 1fr; }
  .trow .tid { grid-column: 1; }
  .trow .pri-cell { grid-column: 2; justify-self: end; }
  .trow .tcell { grid-column: 1 / -1; }
  .tcell .k { display: block; }
  .trow .status-cell { grid-column: 1; }
  .trow .owner-cell { grid-column: 2; }
  .notes, .meta { grid-column: 1 / -1; }
  .topbar .me { display: none; }
  .gate { grid-template-columns: 1fr; margin-left: 16px; }
}