/* ============================================================
 * style.css · Credential Expiry Hub
 * 纯本地样式，零外链（无字体、无图标库、无 CDN）
 * 无障碍：正文对比度 ≥ WCAG AA；所有可交互元素 ≥44px；打印专用版式
 * ============================================================ */

:root {
  --bg: #f5f6f9;
  --surface: #ffffff;
  --surface-2: #eceff5;
  --ink: #14181f;
  --ink-2: #4a5468;
  --line: #d7dce6;
  --brand: #1c3f8f;
  --brand-ink: #ffffff;
  --expired: #a3121b;
  --expired-bg: #fdeced;
  --critical: #8a4b00;
  --critical-bg: #fdf1e3;
  --warning: #6b5a00;
  --warning-bg: #fbf6e0;
  --ok: #14653a;
  --ok-bg: #e9f6ee;
  --muted: #5b6478;
  --muted-bg: #eef0f4;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 8px 24px rgba(16, 24, 40, .05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f131a;
    --surface: #171d27;
    --surface-2: #1f2734;
    --ink: #eef2f8;
    --ink-2: #c3ccdb;
    --line: #2c3543;
    --brand: #8fb4ff;
    --brand-ink: #0c1220;
    --expired: #ff9aa2;
    --expired-bg: #35191d;
    --critical: #ffc27a;
    --critical-bg: #33240f;
    --warning: #f0dd8a;
    --warning-bg: #2e2a10;
    --ok: #7fd6a1;
    --ok-bg: #10291c;
    --muted: #aeb8c8;
    --muted-bg: #1e2531;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35);
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  overflow-x: hidden;
}

h1, h2, h3 { line-height: 1.25; margin: 0 0 8px; }
h1 { font-size: 22px; }
h2 { font-size: 18px; }
h3 { font-size: 16px; }
p { margin: 0 0 10px; }

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }

/* ---------------------------------------------------------- 可点击元素 */
a, button, select, input, summary, label.btn {
  font: inherit;
  min-height: 44px;
}
a, button, select, summary {
  display: inline-flex;
  align-items: center;
}
a { color: var(--brand); }
button { cursor: pointer; }

:focus-visible {
  outline: 3px solid #0b63d6;
  outline-offset: 2px;
}

.skip {
  position: absolute;
  top: -70px;
  left: 8px;
  z-index: 40;
  background: var(--brand);
  color: var(--brand-ink);
  padding: 10px 14px;
  border-radius: 0 0 10px 10px;
  text-decoration: none;
  min-height: 44px;
}
.skip:focus { top: 0; }

/* ------------------------------------------------------------- header */
.top {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}
.top-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: center;
  justify-content: space-between;
  padding-top: 8px;
  padding-bottom: 8px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  min-height: 44px;
  overflow-wrap: anywhere;
}
.brand img { flex: none; }
.lang-group { display: inline-flex; align-items: center; gap: 6px; }
.lang-lab { font-size: 13px; color: var(--ink-2); }
.lang-btn {
  min-height: 44px;
  min-width: 48px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  border-radius: 10px;
}
.lang-btn.is-on { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); font-weight: 700; }

/* ---------------------------------------------------------------- hero */
.hero { padding: 22px 16px 6px; }
.hero .lead { color: var(--ink-2); max-width: 68ch; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0 0 6px; }
.badges li {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 6px 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  color: var(--ink-2);
}
.price-line { font-size: 14px; color: var(--ink-2); }

/* ------------------------------------------------------------- 汇总条 */
.summary { display: flex; flex-wrap: wrap; gap: 10px; margin: 14px 0 6px; }
.chip {
  flex: 1 1 150px;
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--muted);
  border-radius: var(--radius);
  padding: 10px 12px;
  box-shadow: var(--shadow);
}
.chip-val { display: block; font-size: 24px; font-weight: 700; }
.chip-lab { display: block; font-size: 13px; color: var(--ink-2); overflow-wrap: anywhere; }
.chip--expired { border-left-color: var(--expired); background: var(--expired-bg); }
.chip--critical { border-left-color: var(--critical); background: var(--critical-bg); }
.chip--info { border-left-color: var(--brand); }

/* ---------------------------------------------------------------- panel */
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  margin: 14px 0;
  box-shadow: var(--shadow);
}
.panel > h2 { margin-bottom: 10px; }

/* ---------------------------------------------------------------- form */
.field { display: block; margin: 0 0 12px; min-width: 0; }
.field-lab { display: block; font-size: 13px; color: var(--ink-2); margin-bottom: 4px; }
.field-in {
  width: 100%;
  max-width: 100%;
  min-height: 44px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
}
textarea.field-in { min-height: 84px; resize: vertical; line-height: 1.4; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 0 14px; }
.form-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 4px; }
details.more { margin: 4px 0 12px; }
details.more > summary {
  color: var(--brand);
  min-height: 44px;
  cursor: pointer;
}
.form-err, .form-ok { font-size: 14px; min-height: 0; margin: 6px 0 0; }
.form-err { color: var(--expired); }
.form-ok { color: var(--ok); }
.form-err.is-on, .form-ok.is-on { min-height: 22px; }

/* --------------------------------------------------------------- 按钮 */
.btn {
  min-height: 44px;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  text-decoration: none;
}
.btn:hover { filter: brightness(.97); }
.btn--primary { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); font-weight: 600; }
.btn--sm { padding: 8px 12px; font-size: 14px; }
.btn--chip {
  border-radius: 999px;
  padding: 8px 13px;
  font-size: 14px;
  background: var(--surface-2);
  color: var(--ink);
  text-align: left;
  overflow-wrap: anywhere;
}
.btn--chip.is-on { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); font-weight: 600; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 4px; }
.hint { font-size: 13px; color: var(--ink-2); margin: 6px 0 0; overflow-wrap: anywhere; }

/* ------------------------------------------------------------- 看板控件 */
.board-head { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; justify-content: space-between; }
.board-ctl { display: flex; flex-wrap: wrap; gap: 10px; margin: 8px 0 12px; }
.board-ctl .field { margin: 0; flex: 1 1 200px; }
.board-scroll { max-height: 70vh; overflow-y: auto; overflow-x: hidden; padding-right: 2px; }
.board-count { font-size: 13px; color: var(--ink-2); }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 6px 0; }

/* ---------------------------------------------------------------- card */
.card {
  border: 1px solid var(--line);
  border-left: 5px solid var(--muted);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 12px;
  margin: 0 0 10px;
  min-width: 0;
}
.card--expired { border-left-color: var(--expired); }
.card--critical { border-left-color: var(--critical); }
.card--warning { border-left-color: var(--warning); }
.card--ok { border-left-color: var(--ok); }
.card--none { border-left-color: var(--muted); }
.card--archived { opacity: .78; }
.card-head { display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-start; justify-content: space-between; }
.card-name { margin: 0; font-size: 16px; min-width: 0; overflow-wrap: anywhere; }
.card-days { margin: 6px 0 8px; font-weight: 700; font-size: 15px; }
.card-days--muted { font-weight: 400; color: var(--ink-2); font-size: 13px; }
.card-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 6px 14px;
  margin: 0 0 8px;
}
.meta-row { min-width: 0; }
.meta-k { font-size: 12px; color: var(--ink-2); margin: 0; }
.meta-v { margin: 0; font-size: 14px; overflow-wrap: anywhere; }
.card-notes { font-size: 14px; color: var(--ink-2); overflow-wrap: anywhere; margin: 0 0 8px; }
.card-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.card-inline {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: flex-end;
}
.inline-q { width: 100%; margin: 0; font-weight: 600; }
.inline-help { width: 100%; margin: 0; font-size: 13px; color: var(--ink-2); }
.card-inline .field { flex: 0 1 220px; margin: 0; }

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  background: var(--muted-bg);
  color: var(--ink);
  white-space: nowrap;
}
.badge--expired { background: var(--expired-bg); color: var(--expired); }
.badge--critical { background: var(--critical-bg); color: var(--critical); }
.badge--warning { background: var(--warning-bg); color: var(--warning); }
.badge--ok { background: var(--ok-bg); color: var(--ok); }

/* ------------------------------------------------------------ 空状态 */
.empty { text-align: center; padding: 26px 12px; }
.empty-t { margin-bottom: 6px; }
.empty-b { color: var(--ink-2); max-width: 60ch; margin: 0 auto; }

/* ------------------------------------------------------------ 提示条 */
.banner {
  background: var(--warning-bg);
  border: 1px solid var(--line);
  border-left: 5px solid var(--warning);
  color: var(--ink);
  border-radius: var(--radius);
  padding: 10px 12px;
  margin: 12px 0;
  font-size: 14px;
}
.toast {
  position: fixed;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%) translateY(140%);
  max-width: min(560px, calc(100vw - 32px));
  background: var(--ink);
  color: var(--surface);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14px;
  box-shadow: var(--shadow);
  transition: transform .18s ease-out;
  z-index: 60;
  overflow-wrap: anywhere;
}
.toast.is-on { transform: translateX(-50%) translateY(0); }
.toast--warn { background: var(--expired); color: #fff; }

/* ------------------------------------------------------------- 章节 */
.steps { padding-left: 20px; margin: 0; }
.steps li { margin-bottom: 4px; }
.site-foot {
  border-top: 1px solid var(--line);
  background: var(--surface);
  margin-top: 20px;
  padding: 14px 0 26px;
  font-size: 14px;
  color: var(--ink-2);
}

/* ------------------------------------------------------------ 打印版 */
.print-only { display: none; }

@media print {
  body { background: #fff; color: #000; }
  .skip, .top, .hero, .summary, .banner, .panel, #boardbox, #toolsbox, #howto,
  #privacy, .site-foot, .toast, #bac-intent, noscript { display: none !important; }
  .print-only { display: block !important; }
  .wrap { max-width: none; padding: 0; }
  .print-table { width: 100%; border-collapse: collapse; font-size: 11pt; }
  .print-table th, .print-table td { border: 1px solid #000; padding: 4px 6px; text-align: left; vertical-align: top; }
  .print-table th { background: #eee; }
  .print-box { width: 62px; }
  .print-title { font-size: 15pt; }
  .print-date { font-size: 10pt; }
  .print-sign { margin-top: 22px; }
  .print-foot { margin-top: 14px; font-size: 9pt; }
  @page { margin: 14mm; }
}

/* ------------------------------------------------------- 窄屏微调 */
@media (max-width: 480px) {
  .card-meta { grid-template-columns: 1fr; }
  .chip { flex: 1 1 100%; }
  h1 { font-size: 20px; }
}