:root {
  --ink: #1a1b1e;
  --ink-soft: #4a4e57;
  --cream: #f7f4ee;
  --paper: #ffffff;
  --line: #e4ded3;
  --blue: #1b63e0;
  --blue-dark: #1550bd;
  --green: #1c7c54;
  --amber: #b4690e;
  --red: #b42318;
  --shadow: 0 1px 2px rgba(26,27,30,.06), 0 8px 24px rgba(26,27,30,.06);
  --radius: 14px;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { line-height: 1.2; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; background: var(--paper); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
}
.brand-mark { font-weight: 800; font-size: 20px; letter-spacing: -.01em; }
.brand-sub { color: var(--ink-soft); font-size: 13px; margin-left: 8px; }
.badge {
  font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 999px;
}
.badge-demo { background: #fde9c8; color: var(--amber); }
.badge-live { background: #d6f0e3; color: var(--green); }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.demo-date { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ink-soft); }
.demo-date input { font: inherit; padding: 3px 6px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); color: var(--ink); }

.headline {
  display: flex; gap: 28px; flex-wrap: wrap;
  padding: 22px 20px; max-width: 1040px; margin: 0 auto;
}
.headline-stat { display: flex; flex-direction: column; }
.stat-num { font-size: 30px; font-weight: 800; letter-spacing: -.02em; }
.stat-label { font-size: 13px; color: var(--ink-soft); }
.headline-due .stat-num { color: var(--blue); }

.tabs {
  display: flex; gap: 4px; padding: 0 20px; max-width: 1040px; margin: 0 auto;
  border-bottom: 1px solid var(--line);
}
.tab {
  background: none; border: none; padding: 12px 14px; font-size: 15px; font-weight: 600;
  color: var(--ink-soft); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab.is-active { color: var(--ink); border-bottom-color: var(--blue); }
.pill { background: var(--blue); color: #fff; border-radius: 999px; font-size: 11px; padding: 1px 7px; margin-left: 4px; }

main { max-width: 1040px; margin: 0 auto; padding: 20px; }
.view { display: none; }
.view.is-active { display: block; }

.board-actions { margin-bottom: 16px; }
.lanes { display: flex; flex-direction: column; gap: 22px; }
.lane h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-soft); margin: 0 0 10px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }

.bidcard {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 8px;
}
.bidcard .facility { font-weight: 700; }
.bidcard .meta { font-size: 13px; color: var(--ink-soft); display: flex; flex-wrap: wrap; gap: 8px; }
.bidcard .price { font-weight: 800; font-size: 18px; }
.bidcard .actions { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 4px; }
.due-flag { color: var(--blue); font-weight: 700; font-size: 12px; }
.tag { font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 999px; background: #eef1f5; color: var(--ink-soft); }
.tag-type { background: #eaf1fd; color: var(--blue-dark); }

.btn {
  font: inherit; font-weight: 600; font-size: 14px; padding: 8px 14px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--paper); color: var(--ink); cursor: pointer;
}
.btn:hover { border-color: #cfc8ba; }
.btn-primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); }
.btn-ghost { background: transparent; }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-block { width: 100%; margin-top: 8px; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.form label { display: block; font-size: 13px; font-weight: 600; margin: 10px 0 0; }
.form input, .form select {
  width: 100%; font: inherit; padding: 8px 10px; margin-top: 4px;
  border: 1px solid var(--line); border-radius: 10px; background: #fff;
}
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.addons { margin-top: 12px; border-top: 1px solid var(--line); padding-top: 8px; }
.addons summary { cursor: pointer; font-weight: 600; font-size: 14px; }
.muted { color: var(--ink-soft); font-size: 14px; }
.note { font-size: 12px; color: var(--amber); background: #fdf6e7; padding: 8px 10px; border-radius: 8px; }

.proposal-pane .empty { color: var(--ink-soft); padding: 30px 6px; text-align: center; }
.price-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.price-num { font-size: 34px; font-weight: 800; letter-spacing: -.02em; }
.price-unit { color: var(--ink-soft); font-weight: 600; }
.sow { margin-top: 14px; font-size: 14px; }
.sow h1, .sow h2, .sow h3 { font-size: 15px; margin: 14px 0 4px; }
.sow p { margin: 6px 0; }
.sow ul { margin: 6px 0; padding-left: 18px; }
.proposal-actions { display: flex; gap: 8px; margin-top: 16px; }

.outbox-list { display: flex; flex-direction: column; gap: 12px; }
.outbox-item { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; box-shadow: var(--shadow); }
.outbox-item .subject { font-weight: 700; }
.outbox-item .to { font-size: 13px; color: var(--ink-soft); }
.outbox-item textarea { width: 100%; min-height: 120px; font: inherit; font-size: 13px; margin-top: 8px; padding: 10px; border: 1px solid var(--line); border-radius: 10px; }
.outbox-item .actions { display: flex; gap: 8px; margin-top: 8px; }
.outbox-empty { color: var(--ink-soft); padding: 20px 0; }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  background: var(--ink); color: #fff; padding: 11px 16px; border-radius: 10px; font-size: 14px;
  box-shadow: var(--shadow); z-index: 50; max-width: 90vw;
}

@media (max-width: 720px) {
  .split { grid-template-columns: 1fr; }
  .headline { gap: 20px; }
  .stat-num { font-size: 24px; }
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #ececec; --ink-soft: #a6abb5; --cream: #16181d; --paper: #1e2128;
    --line: #2d313a; --blue: #4f8bf0; --blue-dark: #3f78db;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.3);
  }
  :root:not([data-theme="light"]) .badge-demo { background: #3a2f16; }
  :root:not([data-theme="light"]) .tag { background: #2a2e37; }
  :root:not([data-theme="light"]) .tag-type { background: #223150; color: #9fc0f7; }
  :root:not([data-theme="light"]) .note { background: #332a14; }
  :root:not([data-theme="light"]) .form input, :root:not([data-theme="light"]) .form select, :root:not([data-theme="light"]) .outbox-item textarea { background: #15171c; color: var(--ink); }
}
:root[data-theme="dark"] {
  --ink: #ececec; --ink-soft: #a6abb5; --cream: #16181d; --paper: #1e2128;
  --line: #2d313a; --blue: #4f8bf0; --blue-dark: #3f78db;
}