:root {
  --bg: #F4F5F7; --surface: #FFFFFF; --line: #DDE1E7; --line-soft: #E6E9EE;
  --ink: #161B26; --muted: #4A5262; --faint: #5B6474;
  --accent: #1D5FAD; --accent-ink: #164A87; --accent-bg: #EAF1FA;
  --ok-bg: #E6F4EC; --ok: #1E6B45;
  --wait-bg: #FFF1E0; --wait: #9A4A00; --wait-line: #C76A12;
  --late-bg: #FDECEC; --late: #A12A2A;
  --todo-bg: #EEF0F3;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-size: 14px; line-height: 1.5;
  font-family: "Noto Sans TC", "Microsoft JhengHei", "PingFang TC", system-ui, sans-serif; }
a { color: var(--accent); } a:hover { color: var(--accent-ink); }
h1 { font-size: 22px; margin: 0; } h2 { font-size: 15px; margin: 0; } h3 { font-size: 14px; margin: 0; }
.mono { font-family: "IBM Plex Mono", Consolas, ui-monospace, monospace; }
.muted { color: var(--faint); } .small { font-size: 12px; }
.pre { white-space: pre-wrap; word-break: break-word; }

/* 頂部 */
.top { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; padding: 8px 24px;
  background: var(--surface); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 16px; color: var(--ink); text-decoration: none; }
.nav { display: flex; flex-wrap: wrap; gap: 4px; }
.nav a { display: inline-flex; align-items: center; min-height: 40px; padding: 0 12px; border-radius: 6px;
  text-decoration: none; color: var(--muted); }
.nav a.on { color: var(--accent); background: var(--accent-bg); font-weight: 500; }
.top form.search { flex: 0 1 320px; margin-left: auto; }
.top .search input { width: 100%; }

main { max-width: 1360px; margin: 0 auto; padding: 20px 24px 48px; display: flex; flex-direction: column; gap: 16px; }
.row { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; }
.spacer { flex: 1 1 auto; }
.cols { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-start; }
.cols > .main { flex: 999 1 640px; min-width: 0; display: flex; flex-direction: column; gap: 16px; }
.cols > .side { flex: 1 1 320px; min-width: 0; display: flex; flex-direction: column; gap: 12px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr)); gap: 12px; }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 16px; }
.card.flush { padding: 0; overflow: hidden; }
.card-head { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--line-soft); }
.card.dashed { border-style: dashed; }
.kpi .label { color: var(--faint); font-size: 13px; }
.kpi .value { font-size: 30px; font-weight: 700; line-height: 1.2; }
.kpi .value.wait { color: var(--wait); } .kpi .value.late { color: var(--late); }

/* 標籤 */
.pill { display: inline-flex; align-items: center; gap: 4px; padding: 1px 8px; border-radius: 999px;
  font-size: 12px; font-weight: 500; white-space: nowrap; line-height: 20px; }
.pill.ok { background: var(--ok-bg); color: var(--ok); }
.pill.wait { background: var(--wait-bg); color: var(--wait); }
.pill.late { background: var(--late-bg); color: var(--late); }
.pill.todo, .pill.muted { background: var(--todo-bg); color: var(--muted); }
.tag { display: inline-flex; padding: 0 8px; border: 1px solid #C9D7EA; background: #F3F7FC; color: #1D4F8F;
  border-radius: 4px; font-size: 12px; white-space: nowrap; }
.chip { display: inline-flex; align-items: center; gap: 4px; padding: 0 8px; border: 1px solid var(--line);
  border-radius: 4px; font-size: 12px; white-space: nowrap; }
.chip.miss { border-style: dashed; color: var(--late); }
.tags { display: flex; flex-wrap: wrap; gap: 4px; }

/* 階段色塊 */
.segs { display: flex; gap: 3px; margin-bottom: 4px; }
.seg { width: 14px; height: 6px; border-radius: 2px; background: #D3D8E0; }
.seg.st-done { background: var(--accent); } .seg.st-progress { background: #7FA6D6; }
.seg.st-waiting { background: var(--wait-line); } .seg.st-empty { background: #EEF0F3; }

/* 表格 */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--line-soft); text-align: left; vertical-align: top; }
thead th { background: #F9FAFB; color: var(--muted); font-size: 12px; font-weight: 500; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
tr.target { background: #F3F7FC; }

/* 表單 */
input[type=text], input[type=search], input[type=date], input[type=number], input[type=email],
input[type=password], select, textarea {
  font: inherit; color: var(--ink); border: 1px solid #C9CFD8; border-radius: 6px; padding: 8px 10px; background: #fff; min-height: 38px; }
textarea { resize: vertical; width: 100%; }
label.field, div.field { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
label.field input, label.field select, label.field textarea { width: 100%; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr)); gap: 12px 16px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 38px; padding: 0 14px;
  border-radius: 6px; border: 1px solid var(--line); background: #fff; color: var(--ink); font: inherit;
  text-decoration: none; cursor: pointer; white-space: nowrap; }
.btn:hover { background: #F6F7F9; color: var(--ink); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 500; }
.btn.primary:hover { background: var(--accent-ink); color: #fff; }
.btn.danger { color: var(--late); }
.btn.small { min-height: 30px; padding: 0 10px; font-size: 13px; }
.linkbtn { background: none; border: 0; padding: 0; color: var(--accent); font: inherit; cursor: pointer; text-decoration: underline; }
form.inline { display: inline; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filters a { display: inline-flex; align-items: center; min-height: 36px; padding: 0 14px; border-radius: 999px;
  border: 1px solid var(--line); background: #fff; color: var(--ink); text-decoration: none; }
.filters a.on { border-color: var(--accent); background: var(--accent-bg); color: var(--accent); font-weight: 500; }
.radios { display: flex; flex-wrap: wrap; gap: 6px; }
.radios label { display: inline-flex; align-items: center; gap: 6px; min-height: 38px; padding: 0 12px;
  border: 1px solid var(--line); border-radius: 6px; cursor: pointer; }
.radios label:has(input:checked) { border-color: var(--accent); background: var(--accent-bg); color: var(--accent); font-weight: 500; }
.checks { display: flex; flex-wrap: wrap; gap: 8px; }
.checks label { display: inline-flex; align-items: center; gap: 6px; min-height: 36px; padding: 0 10px;
  border: 1px solid var(--line); border-radius: 6px; cursor: pointer; }

/* 專案頁 */
.tabs { display: flex; flex-wrap: wrap; gap: 4px; margin: 4px -16px -16px; padding: 0 16px; border-top: 1px solid var(--line-soft); }
.tabs a { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 0 12px; text-decoration: none;
  color: var(--muted); border-bottom: 2px solid transparent; }
.tabs a.on { color: var(--accent); font-weight: 500; border-bottom-color: var(--accent); }
.stepper { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(190px, 100%), 1fr)); gap: 8px; }
.stepper li { background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; display: flex; gap: 10px; }
.stepper li.current { border: 2px solid var(--accent); padding: 9px 11px; }
.stepper .num { flex: 0 0 26px; height: 26px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; background: var(--todo-bg); color: var(--muted); }
.stepper .st-done .num { background: var(--accent); color: #fff; }
.stepper .st-waiting .num { background: var(--wait-bg); color: var(--wait); border: 1px solid var(--wait-line); }
.stepper .st-progress .num { background: var(--accent-bg); color: var(--accent); border: 1px solid var(--accent); }
.waitbox { padding: 10px 12px; border-radius: 6px; background: var(--wait-bg); }
.waitbox.late { background: var(--late-bg); }
.waitbox strong { color: var(--wait); } .waitbox.late strong { color: var(--late); }
.side ul { margin: 0; padding-left: 18px; display: flex; flex-direction: column; gap: 6px; }

/* 信件 */
.drop { border: 2px dashed #C9CFD8; border-radius: 8px; padding: 14px; background: #F9FAFB; }
.drop.over { border-color: var(--accent); background: var(--accent-bg); }
.mail-row { display: block; padding: 10px 14px; border-bottom: 1px solid var(--line-soft); text-decoration: none; color: var(--ink); }
.mail-row:hover { background: #F9FAFB; color: var(--ink); }
.meta-grid { display: grid; grid-template-columns: 72px minmax(0, 1fr); gap: 4px 8px; font-size: 13px; }

.flash { padding: 10px 14px; border-radius: 6px; }
.flash.ok { background: var(--ok-bg); color: var(--ok); }
.flash.error { background: var(--late-bg); color: var(--late); }
.empty { padding: 24px; text-align: center; color: var(--faint); }
details summary { cursor: pointer; color: var(--accent); }

@media (max-width: 640px) {
  main { padding: 16px; }
  .top { padding: 8px 16px; }
  .top form.search { flex: 1 1 100%; margin-left: 0; }
}