/* ============================================================
 * style.css · MTD ITSA Quarter Helper
 * 无外链资源、无网络字体；深色模式跟随系统；打印只输出一页纸汇总
 * ============================================================ */

:root {
  --bg: #f4f7fa;
  --surface: #ffffff;
  --surface-2: #eef3f8;
  --ink: #101a24;
  --ink-2: #3d4b5c;
  --muted: #5b6b7c;
  --line: #d5dee7;
  --brand: #0f3d5c;
  --brand-ink: #ffffff;
  --accent: #0b6b5e;
  --accent-soft: #e2f2ef;
  --warn-bg: #fff4e5;
  --warn-line: #e0a24a;
  --warn-ink: #7a4a00;
  --danger: #9b1c25;
  --ok-bg: #e6f4ea;
  --ok-ink: #14532d;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16, 26, 36, .06), 0 10px 26px rgba(16, 26, 36, .06);
  --tap: 44px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1319;
    --surface: #151d26;
    --surface-2: #1b2530;
    --ink: #eef3f8;
    --ink-2: #cbd6e2;
    --muted: #a3b2c2;
    --line: #2b3743;
    --brand: #7fb6dd;
    --brand-ink: #08131c;
    --accent: #6fd6c4;
    --accent-soft: #14312e;
    --warn-bg: #3a2c14;
    --warn-line: #a97c33;
    --warn-ink: #f4d9a6;
    --danger: #ff9aa2;
    --ok-bg: #16301f;
    --ok-ink: #a7e6bd;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 26px rgba(0, 0, 0, .35);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  overflow-x: hidden;
}

h1 { font-size: clamp(1.5rem, 1.15rem + 1.6vw, 2.15rem); line-height: 1.2; margin: 0 0 12px; }
h2 { font-size: clamp(1.15rem, 1rem + .6vw, 1.4rem); line-height: 1.25; margin: 0 0 6px; }
h3 { font-size: 1.02rem; margin: 0 0 8px; }

p { margin: 0 0 10px; overflow-wrap: break-word; }

a { color: var(--brand); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 2px;
  border-radius: 4px;
}

.wrap { width: 100%; max-width: 980px; margin: 0 auto; padding: 0 16px; }

/* ---------------------------------------------------------- 顶部 */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 50;
  background: var(--surface); color: var(--ink);
  padding: 12px 16px; border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; }

.topbar {
  background: var(--brand);
  color: var(--brand-ink);
  padding: 12px 0;
}
@media (prefers-color-scheme: dark) { .topbar { background: #10222f; color: var(--ink); } }

.topbar-in { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 14px; }
.brand { display: inline-flex; align-items: center; gap: 9px; color: inherit; text-decoration: none; font-weight: 700; font-size: 1.02rem; }
.brand-mark {
  display: inline-grid; place-items: center;
  width: 26px; height: 26px; border-radius: 7px;
  background: var(--brand-ink); color: var(--brand);
  font-family: Georgia, "Times New Roman", serif; font-size: 16px;
}
@media (prefers-color-scheme: dark) { .brand-mark { background: #7fb6dd; color: #08131c; } }
.brand-tag { font-size: .84rem; opacity: .9; }

/* ---------------------------------------------------------- 区块 */
main { padding: 22px 16px 8px; display: block; }

.hero { margin-bottom: 20px; }
.eyebrow {
  text-transform: uppercase; letter-spacing: .07em;
  font-size: .76rem; font-weight: 700; color: var(--accent);
  margin: 0 0 6px;
}
.lead { font-size: 1.05rem; color: var(--ink-2); max-width: 62ch; }
.disclaimer { font-size: .86rem; color: var(--muted); max-width: 70ch; }
.section-lead { color: var(--ink-2); max-width: 68ch; }
.subhead { color: var(--ink-2); margin-top: 16px; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  margin: 0 0 18px;
}

.note {
  background: var(--surface-2);
  border-left: 4px solid var(--brand);
  border-radius: 0 8px 8px 0;
  padding: 10px 12px;
  font-size: .9rem;
  color: var(--ink-2);
  margin: 10px 0 0;
}
.note-warn { background: var(--warn-bg); border-left-color: var(--warn-line); color: var(--warn-ink); }
.hint { font-size: .84rem; color: var(--muted); margin: 6px 0 0; }
.muted { color: var(--muted); }
.small { font-size: .82rem; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------------------------------------------------------- 倒计时卡 */
.deadline-card { padding: 18px; }
#deadlineBody { display: flex; flex-wrap: wrap; gap: 18px 26px; align-items: center; }
.countdown { display: flex; flex-direction: column; align-items: flex-start; min-width: 132px; }
.countdown-num {
  font-size: clamp(2.6rem, 2rem + 4vw, 3.6rem);
  line-height: 1; font-weight: 800; color: var(--brand);
  font-variant-numeric: tabular-nums;
}
@media (prefers-color-scheme: dark) { .countdown-num { color: #9fd0f0; } }
.countdown-label { font-size: .9rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.deadline-meta { flex: 1 1 260px; }
.deadline-title { font-weight: 700; margin: 0 0 4px; }
.deadline-meta p { margin: 0 0 3px; }
.deadline-done { font-weight: 600; margin: 0; }

/* ---------------------------------------------------------- 表单元素 */
.field { margin: 12px 0 0; }
.field-wide { grid-column: 1 / -1; }
.field > label, .field-label, .field-group legend { display: block; font-size: .88rem; font-weight: 600; color: var(--ink-2); margin-bottom: 5px; }
.field-label { margin-top: 0; }

/* 隐藏原生 file 控件：不同浏览器 UI 语言会渲染出中文/其他语言的"选择文件"，
   与"全部文案走语言包"冲突。用 label 作为可见按钮，原生控件保留键盘可达。 */
.sr-file {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.sr-file:focus-visible + label.btn { outline: 3px solid var(--brand); outline-offset: 2px; }
label.btn { cursor: pointer; }
.file-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }

input[type="text"], input[type="date"], input[type="email"], select, textarea {
  width: 100%;
  min-height: var(--tap);
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
}
textarea { min-height: 180px; resize: vertical; font-size: .92rem; line-height: 1.5; }
input[type="file"] { min-height: var(--tap); padding: 8px 0; font-size: .9rem; }

.field-group {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px 6px;
  margin: 14px 0 0;
  background: var(--surface-2);
}
.field-group legend { padding: 0 6px; }

.radio {
  display: flex; align-items: center; gap: 10px;
  min-height: var(--tap);
  padding: 4px 0;
  cursor: pointer;
  font-size: .96rem;
}
.radio input { width: 20px; height: 20px; flex: 0 0 auto; accent-color: var(--brand); }

.grid-2 { display: grid; grid-template-columns: 1fr; gap: 0 18px; }
.grid-form { display: grid; grid-template-columns: 1fr; gap: 0 16px; }
@media (min-width: 700px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-form { grid-template-columns: 1fr 1fr; }
}

/* ---------------------------------------------------------- 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: var(--tap);
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
  font: inherit; font-size: .96rem; font-weight: 600;
  cursor: pointer;
  text-align: center;
}
.btn:hover { border-color: var(--brand); }
.btn-primary { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); }
@media (prefers-color-scheme: dark) { .btn-primary { background: #2c6f95; border-color: #2c6f95; color: #f2f8fc; } }
.btn-ghost { background: transparent; font-weight: 500; }
.btn-danger { color: var(--danger); border-color: var(--line); }
.btn-danger:hover { border-color: var(--danger); }
.btn-inline { min-height: var(--tap); padding: 6px 12px; font-size: .85rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 12px 0 0; }
.form-actions { margin-top: 14px; }

/* ---------------------------------------------------------- 季度时间轴 */
.qlist { list-style: none; margin: 14px 0 0; padding: 0; display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 720px) { .qlist { grid-template-columns: 1fr 1fr; } }

.qcard {
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.qcard-active { border-color: var(--brand); box-shadow: var(--shadow); }
.qcard-btn {
  display: block; width: 100%; text-align: left;
  min-height: var(--tap);
  padding: 12px 14px 8px;
  background: transparent; border: 0; color: inherit;
  font: inherit; cursor: pointer;
}
.qcard-btn p { margin: 0 0 3px; font-size: .9rem; color: var(--ink-2); }
.qcard-head { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-bottom: 6px; }
.qbadge { font-weight: 800; font-size: 1.05rem; color: var(--brand); }
@media (prefers-color-scheme: dark) { .qbadge { color: #9fd0f0; } }
.qcard-deadline { font-weight: 600; }
.qcard-count { color: var(--muted) !important; font-size: .84rem !important; }
.qcard-mark {
  align-self: flex-start;
  margin: 0 14px 12px;
  min-height: var(--tap);
  font-size: .86rem;
}

.pill {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: .74rem; font-weight: 700;
  letter-spacing: .02em;
  background: var(--surface-2); color: var(--ink-2);
  border: 1px solid var(--line);
}
.pill-overdue { background: #fdeaec; color: #8c1620; border-color: #e7b3b8; }
.pill-dueSoon { background: var(--warn-bg); color: var(--warn-ink); border-color: var(--warn-line); }
.pill-open { background: var(--accent-soft); color: #0a5348; border-color: #9ed3c8; }
.pill-done { background: var(--ok-bg); color: var(--ok-ink); border-color: #a9d8b8; }
.pill-next { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); }
@media (prefers-color-scheme: dark) {
  .pill-overdue { background: #3a1a1e; color: #ffb3ba; border-color: #6d2a31; }
  .pill-open { background: var(--accent-soft); color: var(--accent); border-color: #2b5c53; }
}

/* ---------------------------------------------------------- 页签 */
.tabs { display: flex; gap: 6px; border-bottom: 2px solid var(--line); margin: 10px 0 4px; }
.tab {
  min-height: var(--tap);
  padding: 10px 16px;
  border: 0; border-bottom: 3px solid transparent;
  background: transparent; color: var(--ink-2);
  font: inherit; font-weight: 600; cursor: pointer;
}
.tab-on { color: var(--brand); border-bottom-color: var(--brand); }
@media (prefers-color-scheme: dark) { .tab-on { color: #9fd0f0; border-bottom-color: #9fd0f0; } }

/* ---------------------------------------------------------- 记录表 */
.empty {
  background: var(--surface-2);
  border: 1px dashed var(--line);
  border-radius: 10px;
  padding: 16px;
  margin: 14px 0 0;
  color: var(--ink-2);
  font-size: .94rem;
}
/* 长列表不爆屏：记录区自成滚动容器，高度不超过 60vh */
#listWrap {
  max-height: min(60vh, 560px);
  overflow-y: auto;
  overscroll-behavior: contain;
  border-radius: 10px;
}
#listWrap:focus-within { outline: 2px solid var(--line); outline-offset: 2px; }
.records { width: 100%; border-collapse: collapse; margin-top: 14px; font-size: .93rem; }
.records th, .records td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.records thead th { background: var(--surface-2); font-size: .82rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
.records .cell-amount { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.records .cell-date { white-space: nowrap; font-weight: 600; }
.records .cell-note { color: var(--muted); max-width: 22ch; overflow-wrap: break-word; }
.records .cell-actions { white-space: nowrap; }

/* 窄屏：记录表改为卡片式堆叠，避免横向滚动；并补上字段名（表头此时已隐藏） */
@media (max-width: 640px) {
  .records thead { display: none; }
  .records, .records tbody, .records tr, .records th, .records td { display: block; width: 100%; }
  .records tr { border: 1px solid var(--line); border-radius: 10px; padding: 8px; margin-bottom: 10px; }
  .records th, .records td { border: 0; padding: 3px 4px; }
  .records .cell-amount { text-align: left; }
  .records .cell-note { max-width: none; }
  .records td[data-label]::before {
    content: attr(data-label) ": ";
    color: var(--muted);
    font-size: .78rem;
    letter-spacing: .02em;
  }
}

/* ---------------------------------------------------------- 汇总 */
.grid-2 .sum-block { padding-top: 6px; }
.sum-block-cum {
  background: var(--accent-soft);
  border-radius: 10px;
  padding: 12px 14px 6px;
  margin-top: 12px;
}
@media (min-width: 700px) { .sum-block-cum { margin-top: 6px; } }

.kv { display: grid; grid-template-columns: 1fr auto; gap: 6px 14px; margin: 0; }
.kv dt { color: var(--ink-2); font-size: .92rem; }
.kv dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }
.kv .kv-strong { font-size: 1.06rem; font-weight: 800; border-top: 1px solid var(--line); padding-top: 7px; }

.cats { margin-top: 10px; }
.catrow { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.4fr) auto auto; gap: 8px 10px; align-items: center; padding: 7px 0; border-bottom: 1px solid var(--line); font-size: .92rem; }
.catname { overflow-wrap: break-word; }
.catbar { background: var(--surface-2); border-radius: 999px; height: 9px; overflow: hidden; }
.catbar-fill { display: block; height: 100%; background: var(--accent); }
.catpct { color: var(--muted); font-size: .84rem; min-width: 3ch; text-align: right; }
.catamount { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
@media (max-width: 480px) {
  .catrow { grid-template-columns: 1fr auto; grid-template-areas: "n a" "b p"; }
  .catname { grid-area: n; } .catamount { grid-area: a; }
  .catbar { grid-area: b; } .catpct { grid-area: p; }
}

/* ---------------------------------------------------------- 状态 / 提示 */
.status {
  min-height: 0;
  margin: 0 0 14px;
  font-size: .92rem;
  border-radius: 8px;
}
.status:empty { display: none; }
.status-ok { background: var(--ok-bg); color: var(--ok-ink); padding: 9px 12px; }
.status-warn { background: var(--warn-bg); color: var(--warn-ink); padding: 9px 12px; }
.form-error { color: var(--danger); font-size: .9rem; margin: 10px 0 0; font-weight: 600; }

.verdict { margin-top: 14px; }
.verdict p { margin: 0 0 6px; }
.verdict-ok { background: var(--ok-bg); color: var(--ok-ink); padding: 12px; border-radius: 10px; }
.verdict-warn { background: var(--warn-bg); color: var(--warn-ink); padding: 12px; border-radius: 10px; }

/* ---------------------------------------------------------- FAQ / 来源 */
.faq { border: 1px solid var(--line); border-radius: 10px; padding: 4px 14px; margin: 10px 0; background: var(--surface-2); }
.faq summary { min-height: var(--tap); display: flex; align-items: center; cursor: pointer; font-weight: 600; }
.faq p { margin: 0 0 12px; color: var(--ink-2); }
.src-list { margin: 6px 0 0; padding-left: 20px; }
.src-list li { margin-bottom: 6px; }

/* ---------------------------------------------------------- 页脚 */
.footer { background: var(--surface); border-top: 1px solid var(--line); margin-top: 10px; padding: 18px 0 26px; }
.footer p { font-size: .84rem; color: var(--muted); margin: 0 0 4px; }

/* ---------------------------------------------------------- 打印：只留一页纸汇总 */
.print-only { display: none; }

@media print {
  :root { --ink: #000; --muted: #333; --line: #999; }
  body { background: #fff; color: #000; font-size: 12pt; }
  .topbar, .skip-link, main, .footer, #intent-slot, #bac-intent { display: none !important; }
  .print-only { display: block !important; padding: 0; margin: 0; }
  .print-title { font-size: 16pt; margin-bottom: 4px; }
  .print-dl { display: grid; grid-template-columns: 1fr auto; gap: 4px 16px; margin: 14px 0 0; }
  .print-dl dt { color: #333; }
  .print-dl dd { margin: 0; text-align: right; font-weight: 700; }
  .print-foot { font-size: 9pt; color: #444; margin-top: 16px; }
}

/* 移动端：主操作贴在拇指区（Q5 便利性方案第 6 条） */
@media (max-width: 720px) {
  .form-actions {
    position: sticky;
    bottom: 0;
    z-index: 5;
    background: var(--surface);
    border-top: 1px solid var(--line);
    margin: 14px -18px 0;
    padding: 10px 18px max(10px, env(safe-area-inset-bottom));
  }
}