/*
 * 學分學程比對系統 — 學術刊物風
 * 米白紙張底色、北大深紅主色、明體標題 + 黑體內文 + 等寬數字。
 * 動畫只動 transform / opacity，並在 prefers-reduced-motion 時關閉。
 */

:root {
  --paper: #f6f1e7;
  --paper-deep: #efe7d8;
  --card: #fffdf8;
  --rule: #d9cfbd;
  --rule-soft: #e8e0d0;
  --ink: #221c18;
  --ink-soft: #5c524a;
  --ink-faint: #6f645a; /* 米白底上約 5:1，符合 WCAG AA */
  --crimson: #8b1e1e;
  --crimson-soft: #f3e3df;
  --gold: #8a6a22;
  --gold-soft: #f5ecd6;
  --sage: #4f6352;
  --sage-soft: #e5ece3;

  --serif: "Noto Serif TC", "Songti TC", serif;
  --sans: "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;

  --radius: 4px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --fast: 150ms;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  /* 很淡的紙張紋理：兩層漸層，不用圖片 */
  background-image:
    radial-gradient(circle at 20% 0%, rgba(139, 30, 30, 0.035), transparent 40%),
    radial-gradient(circle at 100% 100%, rgba(138, 106, 34, 0.04), transparent 45%);
  background-attachment: fixed;
}

.page { max-width: 1120px; margin: 0 auto; padding: 0 24px 64px; }

h1, h2, h3 { font-family: var(--serif); font-weight: 700; line-height: 1.3; letter-spacing: 0.02em; }
h1 { font-size: clamp(28px, 4vw, 40px); font-weight: 900; margin: 32px 0 8px; }
h2 { font-size: 22px; margin: 40px 0 12px; }
h3 { font-size: 18px; margin: 0; }

a { color: var(--crimson); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.nowrap { white-space: nowrap; }
.eyebrow.page-top { margin-top: 32px; }
h1.page-title { margin-top: 4px; }
.muted { color: var(--ink-faint); font-size: 14px; }
.lede { color: var(--ink-soft); font-size: 17px; max-width: 46em; }
.eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--ink-faint);
}

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

/* ---------- 刊頭 ---------- */

.masthead {
  border-bottom: 3px double var(--ink);
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(6px);
}
.masthead-inner {
  max-width: 1120px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.brand { text-decoration: none; color: var(--ink); display: flex; flex-direction: column; line-height: 1.15; }
.brand-name { font-family: var(--serif); font-weight: 900; font-size: 22px; letter-spacing: 0.08em; }
.brand-sub { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.22em; color: var(--ink-faint); text-transform: uppercase; }

.nav { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; font-size: 15px; }
.nav a, .link-button {
  position: relative; color: var(--ink); text-decoration: none; padding: 2px 0;
}
/* 底線由左往右畫出 */
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px;
  background: var(--crimson); transform: scaleX(0); transform-origin: left;
  transition: transform 220ms var(--ease-out);
}
.nav a:hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); }
.nav .user { color: var(--ink-faint); font-size: 14px; }
.link-button { background: none; border: 0; font: inherit; cursor: pointer; color: var(--ink-soft); }
.link-button:hover { color: var(--crimson); }

/* ---------- 頁尾 ---------- */

.footer {
  max-width: 1120px; margin: 0 auto; padding: 24px; border-top: 1px solid var(--rule);
  color: var(--ink-faint); font-size: 13px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}

/* ---------- 按鈕與表單 ---------- */

.button, button.button {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--crimson); color: #fff; border: 1px solid var(--crimson);
  border-radius: var(--radius); padding: 9px 20px; font: 500 15px var(--sans);
  text-decoration: none; cursor: pointer;
  transition: transform var(--fast) var(--ease-out), background var(--fast);
}
.button:hover { background: #721717; transform: translateY(-1px); text-decoration: none; }
.button:active { transform: translateY(0); }
.button.ghost { background: transparent; color: var(--crimson); }
.button.ghost:hover { background: var(--crimson-soft); }
.button.small { padding: 4px 12px; font-size: 13px; }

input[type="text"], input[type="number"], input[type="password"], input[type="email"], select, textarea {
  font: 15px var(--sans); color: var(--ink);
  background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 7px 10px; transition: border-color var(--fast);
}
input:focus, select:focus { border-color: var(--crimson); outline: none; box-shadow: 0 0 0 3px var(--crimson-soft); }

.form-card {
  max-width: 420px; margin: 48px auto; background: var(--card);
  border: 1px solid var(--rule); border-top: 4px solid var(--crimson); padding: 28px 32px;
}
.form-card h1 { margin-top: 0; font-size: 28px; }
.form-card p { margin: 0 0 14px; }
.form-card label { display: block; font-size: 14px; color: var(--ink-soft); margin-bottom: 4px; }
.form-card input:not([type="checkbox"]), .form-card select, .form-card textarea { width: 100%; }
.form-card textarea { resize: vertical; min-height: 120px; font: inherit; }
.form-card .helptext, .form-card .errorlist { display: block; margin-top: 4px; }
.report-form { max-width: 640px; margin-left: 0; }
/* honeypot：真人看不到，也不會被螢幕閱讀器念出來 */
.hp { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-card .helptext, .form-card .errorlist { font-size: 13px; color: var(--ink-faint); }
.form-card .errorlist { color: var(--crimson); padding-left: 18px; }
.form-card button { width: 100%; justify-content: center; margin-top: 6px; }
/* allauth 的「記住我」：勾選框和文字放同一行 */
.form-card p:has(> input[type="checkbox"]) { display: flex; align-items: center; gap: 8px; flex-direction: row-reverse; justify-content: flex-end; }
.form-card p:has(> input[type="checkbox"]) label { margin: 0; }

.inline-form { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.inline-form .field { display: inline-flex; gap: 6px; align-items: center; min-width: 0; max-width: 100%; }
.inline-form .field label { white-space: nowrap; }
.inline-form .field select { min-width: 0; flex: 1; }

/* ---------- 訊息 ---------- */

.messages { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 8px; }
.messages li {
  background: var(--card); border: 1px solid var(--rule); border-left: 4px solid var(--sage);
  padding: 10px 14px; font-size: 15px;
  animation: rise 320ms var(--ease-out) both;
  transition: opacity 300ms, transform 300ms;
}
.messages li.error { border-left-color: var(--crimson); }
.messages li.warning { border-left-color: var(--gold); }
.messages li.leaving { opacity: 0; transform: translateY(-4px); }

/* ---------- 頁籤 ---------- */

.tabs {
  position: relative; display: flex; gap: 4px; border-bottom: 1px solid var(--rule);
  margin: 8px 0 20px; overflow-x: auto; overflow-y: hidden;
}
.tabs a {
  padding: 10px 18px; color: var(--ink-soft); text-decoration: none; white-space: nowrap;
  font-family: var(--serif); font-weight: 700; transition: color var(--fast);
}
.tabs a:hover { color: var(--ink); }
.tabs a.active { color: var(--crimson); }
.tabs-indicator {
  position: absolute; bottom: 0; left: 0; height: 3px; width: 0; background: var(--crimson);
  transition: transform 280ms var(--ease-out), width 280ms var(--ease-out);
}

.toolbar { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; justify-content: space-between; margin-bottom: 16px; }
.search { display: flex; gap: 8px; }
.search input { width: min(320px, 60vw); }

.notice {
  border-left: 3px solid var(--gold); background: var(--gold-soft);
  padding: 10px 14px; font-size: 14px; color: var(--ink-soft); margin: 12px 0;
}
.notice.crimson { border-left-color: var(--crimson); background: var(--crimson-soft); }
.notice-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; }
.notice-actions .actions { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; }

/* ---------- 學程卡片 ---------- */

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }
.card {
  position: relative; background: var(--card); border: 1px solid var(--rule);
  border-radius: var(--radius); padding: 18px 20px 16px;
  display: flex; flex-direction: column; gap: 10px;
  animation: rise 480ms var(--ease-out) both;
  animation-delay: calc(min(var(--i, 0), 12) * 40ms);
  transition: transform var(--fast) var(--ease-out), border-color var(--fast), box-shadow var(--fast);
}
.card:hover { transform: translateY(-2px); border-color: var(--crimson); box-shadow: 0 6px 18px -12px rgba(34, 28, 24, 0.45); }
.card h3 a { color: var(--ink); text-decoration: none; }
.card h3 a::after { content: ""; position: absolute; inset: 0; } /* 整張卡片可點 */
.card .meta { margin: 0; color: var(--ink-faint); font-size: 13px; }
.card .status-line { margin: 0; font-size: 14px; color: var(--ink-soft); }
.card.can-apply { border-color: var(--crimson); background: linear-gradient(180deg, var(--card), #fff8f3); }
.card.can-apply .status-line { color: var(--crimson); font-weight: 500; }
.card .row { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; font-size: 13px; color: var(--ink-faint); }

/* 「可申請」印章 */
.stamp {
  position: absolute; top: 14px; right: 14px;
  font-family: var(--serif); font-weight: 900; font-size: 13px; letter-spacing: 0.15em;
  color: var(--crimson); border: 2px solid var(--crimson); border-radius: 3px; padding: 1px 8px;
  transform: rotate(-6deg);
  animation: stamp 420ms var(--ease-out) both;
  animation-delay: calc(min(var(--i, 0), 12) * 40ms + 300ms);
}
.card.can-apply h3 { padding-right: 72px; }

/* ---------- 進度條 ---------- */

.meter { height: 6px; background: var(--rule-soft); border-radius: 3px; overflow: hidden; }
.meter > span {
  display: block; height: 100%; width: 100%; background: var(--ink-soft);
  transform-origin: left; transform: scaleX(calc(var(--p, 0) / 100)); /* --p：0–100 */
  animation: fill 700ms var(--ease-out) both;
  animation-delay: calc(min(var(--i, 0), 12) * 40ms + 120ms);
}
.meter.done > span { background: var(--crimson); }
.meter.large { height: 10px; border-radius: 5px; }

.dots { display: inline-flex; gap: 4px; vertical-align: middle; }
.dots i { width: 9px; height: 9px; border-radius: 50%; border: 1.5px solid var(--ink-faint); }
.dots i.on { background: var(--crimson); border-color: var(--crimson); }

/* ---------- 統計數字 ---------- */

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 0; border: 1px solid var(--rule); background: var(--card); margin: 20px 0; }
.stat { padding: 16px 20px; border-right: 1px solid var(--rule-soft); }
.stat:last-child { border-right: 0; }
.stat .value { font-family: var(--mono); font-size: 34px; font-weight: 500; line-height: 1.1; }
.stat .value small { font-size: 16px; color: var(--ink-faint); }
.stat .label { font-size: 13px; color: var(--ink-faint); }
.stat.accent .value { color: var(--crimson); }
.stat.warn .value { color: var(--gold); }

/* ---------- 表格 ---------- */

.table-wrap { overflow-x: auto; border: 1px solid var(--rule); background: var(--card); }
table.data { width: 100%; border-collapse: collapse; font-size: 14.5px; }
table.data th {
  position: sticky; top: 0; background: var(--paper-deep); text-align: left;
  font-weight: 500; font-size: 13px; color: var(--ink-soft); padding: 9px 12px; border-bottom: 1px solid var(--rule); white-space: nowrap;
}
table.data td { padding: 9px 12px; border-bottom: 1px solid var(--rule-soft); vertical-align: top; }
table.data tr:last-child td { border-bottom: 0; }
table.data tbody tr { transition: background var(--fast); }
table.data tbody tr:hover { background: #fbf6ec; }
table.data tr.group-head td {
  background: var(--paper); font-family: var(--serif); font-weight: 700; color: var(--ink);
  border-top: 1px solid var(--rule); padding-top: 12px;
}
table.data tr.apply td:first-child { box-shadow: inset 3px 0 0 var(--crimson); }
table.data .mini-meter { width: 90px; display: inline-block; vertical-align: middle; margin-left: 8px; }
table.data td.num, table.data th.num { text-align: right; }

/* 狀態標籤 */
.tag {
  display: inline-block; font-size: 12.5px; padding: 1px 9px; border-radius: 999px; white-space: nowrap;
  border: 1px solid transparent;
}
.tag.done { background: var(--sage-soft); color: var(--sage); border-color: #c9d6c6; }
.tag.mismatch { background: var(--gold-soft); color: var(--gold); border-color: #e6d4a6; }
.tag.todo { background: transparent; color: var(--ink-faint); border-color: var(--rule); }
.tag.apply { background: var(--crimson); color: #fff; }

/* ---------- 上傳區 ---------- */

.dropzone {
  position: relative; display: block; border: 1.5px dashed var(--ink-faint); border-radius: 6px; background: var(--card);
  padding: 28px; text-align: center; cursor: pointer;
  transition: border-color var(--fast), background var(--fast), transform var(--fast) var(--ease-out);
}
.dropzone:hover, .dropzone.dragging { border-color: var(--crimson); background: #fff8f3; }
.dropzone.dragging { transform: scale(1.01); }
.dropzone input[type="file"] { position: absolute; width: 1px; height: 1px; opacity: 0; }
.dropzone .title { font-family: var(--serif); font-weight: 700; font-size: 18px; }
.dropzone .filename { font-family: var(--mono); font-size: 13px; color: var(--crimson); min-height: 1.4em; }

.steps { counter-reset: step; list-style: none; padding: 0; margin: 16px 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.steps li { counter-increment: step; position: relative; padding-left: 42px; font-size: 14.5px; color: var(--ink-soft); }
.steps li::before {
  content: counter(step); position: absolute; left: 0; top: -2px;
  font-family: var(--serif); font-weight: 900; font-size: 26px; color: var(--crimson); line-height: 1;
}
.steps li strong { display: block; color: var(--ink); font-family: var(--serif); }

/* ---------- 折疊區塊 ---------- */

details.year { border: 1px solid var(--rule); background: var(--card); margin-bottom: 10px; }
details.year > summary {
  cursor: pointer; padding: 12px 16px; font-family: var(--serif); font-weight: 700;
  display: flex; justify-content: space-between; list-style: none;
}
details.year > summary::-webkit-details-marker { display: none; }
details.year > summary::after { content: "＋"; color: var(--ink-faint); transition: transform var(--fast); }
details.year[open] > summary::after { transform: rotate(45deg); }
details.year[open] > summary { border-bottom: 1px solid var(--rule-soft); }
details.year .table-wrap { border: 0; }

/* 我的修課：上傳區（有紀錄時預設收起） */
details.upload-panel { border: 1px solid var(--rule); background: var(--card); margin: 20px 0 8px; }
details.upload-panel > summary {
  cursor: pointer; padding: 12px 16px; font-family: var(--serif); font-weight: 700;
  display: flex; justify-content: space-between; gap: 12px; list-style: none;
}
details.upload-panel > summary::-webkit-details-marker { display: none; }
details.upload-panel > summary .muted { font-family: var(--sans); font-weight: 400; }
details.upload-panel[open] > summary { border-bottom: 1px solid var(--rule-soft); }
.upload-body { padding: 4px 16px 16px; }

/* 學程比對｜我的課程：同一頁切換，底色滑到選中的那一個 */
.view-switch {
  position: relative; display: inline-flex; margin: 20px 0 4px; padding: 3px;
  border: 1px solid var(--rule); border-radius: 999px; background: var(--card);
}
.view-switch button {
  position: relative; z-index: 1; font: 500 15px var(--sans); color: var(--ink-soft);
  background: transparent; border: 0; border-radius: 999px; padding: 7px 18px; cursor: pointer;
  transition: color 220ms var(--ease-out);
}
.view-switch button:hover { color: var(--ink); }
.view-switch button[aria-selected="true"] { color: #fff; }
.view-switch button .num { opacity: 0.75; margin-left: 2px; }
.view-switch-indicator {
  position: absolute; top: 3px; bottom: 3px; left: 0; width: 0; border-radius: 999px; background: var(--crimson);
  transition: transform 280ms var(--ease-out), width 280ms var(--ease-out);
}
.js-view-switch .view-panel.entering { animation: panel-in 280ms var(--ease-out) both; }
@keyframes panel-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
/* 有 JS 切換時，分頁標題由切換列代替 */
.js-view-switch .panel-title { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.records-toolbar { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 12px; }

details.inline > summary { cursor: pointer; color: var(--crimson); font-size: 13px; list-style: none; }
details.inline > summary::-webkit-details-marker { display: none; }
details.inline[open] > summary { margin-bottom: 6px; }

.icon-button {
  background: none; border: 0; color: var(--ink-faint); cursor: pointer; font-size: 15px; padding: 2px 6px; border-radius: 3px;
  transition: color var(--fast), background var(--fast);
}
.icon-button:hover { color: var(--crimson); background: var(--crimson-soft); }

/* ---------- 確認頁膠囊選項 ---------- */

.pills { display: flex; flex-wrap: wrap; gap: 6px; }
.pills label { position: relative; max-width: 100%; }
.pills input { position: absolute; opacity: 0; }
.pills span {
  display: inline-block; padding: 4px 14px; border: 1px solid var(--rule); border-radius: 999px;
  font-size: 14px; cursor: pointer; background: var(--card); white-space: nowrap;
  max-width: 100%; overflow: hidden; text-overflow: ellipsis; vertical-align: top;
  transition: background var(--fast), color var(--fast), border-color var(--fast);
}
.pills span:hover { border-color: var(--crimson); }
.pills input:checked + span { background: var(--crimson); border-color: var(--crimson); color: #fff; }
.pills input:focus-visible + span { outline: 2px solid var(--crimson); outline-offset: 2px; }

/* ---------- 首頁 ---------- */

.hero { padding: 56px 0 24px; border-bottom: 1px solid var(--rule); margin-bottom: 32px; }
.hero h1 { font-size: clamp(34px, 6vw, 60px); margin: 12px 0 16px; max-width: 14em; }
.hero h1 em { font-style: normal; color: var(--crimson); }
.hero .actions { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.hero > * { animation: rise 600ms var(--ease-out) both; }
.hero > *:nth-child(2) { animation-delay: 80ms; }
.hero > *:nth-child(3) { animation-delay: 160ms; }
.hero > *:nth-child(4) { animation-delay: 240ms; }

/* ---------- 動畫 ---------- */

@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes fill { from { transform: scaleX(0); } }
@keyframes stamp {
  0% { opacity: 0; transform: rotate(-6deg) scale(1.6); }
  70% { opacity: 1; transform: rotate(-6deg) scale(0.95); }
  100% { opacity: 1; transform: rotate(-6deg) scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important; animation-delay: 0ms !important;
    transition-duration: 0.01ms !important;
  }
  .card:hover, .button:hover { transform: none; }
}

/* ---------- 篩選切換（已修畢 / 未修畢） ---------- */

.segmented { display: inline-flex; border: 1px solid var(--rule); border-radius: 999px; background: var(--card); padding: 3px; }
.segmented button {
  font: 500 14px var(--sans); color: var(--ink-soft); background: transparent; border: 0; border-radius: 999px;
  padding: 5px 14px; cursor: pointer; transition: background var(--fast), color var(--fast);
}
.segmented button:hover { color: var(--ink); }
.segmented button[aria-pressed="true"] { background: var(--crimson); color: #fff; }
.segmented button .num { opacity: 0.75; margin-left: 2px; }
tr[hidden] { display: none; }

/* ---------- 排課規劃：課表格子 ---------- */

table.timetable { width: 100%; border-collapse: collapse; table-layout: fixed; font-size: 13px; min-width: 640px; }
table.timetable th { background: var(--paper-deep); font-weight: 500; color: var(--ink-soft); padding: 6px; border: 1px solid var(--rule-soft); }
table.timetable th:first-child { width: 44px; }
table.timetable td { height: 34px; padding: 3px 5px; border: 1px solid var(--rule-soft); vertical-align: top; line-height: 1.35; }
table.timetable td.busy { background: var(--sage-soft); color: var(--sage); }
table.timetable td.clash {
  color: var(--crimson); font-weight: 500;
  background: repeating-linear-gradient(135deg, var(--crimson-soft) 0 6px, #fbeeea 6px 12px);
  box-shadow: inset 0 0 0 1.5px var(--crimson);
}
table.timetable td div { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.section-option {
  display: grid; grid-template-columns: 60px 1fr auto auto; gap: 10px; align-items: center;
  padding: 5px 0; border-bottom: 1px dashed var(--rule-soft); font-size: 14px;
}
.section-option:last-child { border-bottom: 0; }

/* 有事時段、拖曳選取中 */
#planner-grid td[data-day] { cursor: pointer; user-select: none; }
#planner-grid td[data-day]:hover { outline: 1px dashed var(--ink-faint); outline-offset: -3px; }
table.timetable td.blocked {
  color: var(--ink-soft);
  background: repeating-linear-gradient(135deg, var(--paper-deep) 0 6px, var(--card) 6px 12px);
}
table.timetable td.selecting { background: var(--crimson-soft); box-shadow: inset 0 0 0 2px var(--crimson); }
#planner-grid.removing td.selecting { background: var(--card); box-shadow: inset 0 0 0 2px var(--ink-faint); }

/* ---------- 手機（放在最後，覆蓋前面的樣式；課表縮小到一個畫面寬，不用左右捲動） ---------- */
@media (max-width: 640px) {
  .page { padding: 0 16px 48px; }
  .masthead { position: static; } /* 手機上不固定刊頭，避免佔掉太多畫面 */
  .masthead-inner { padding: 10px 16px; }
  .tabs { scrollbar-width: none; }
  .nav { gap: 14px; font-size: 14px; }
  .cards { grid-template-columns: 1fr; }
  .stat { border-right: 0; border-bottom: 1px solid var(--rule-soft); }
  .stat .value { font-size: 28px; }
  .form-card { padding: 22px 20px; margin: 24px auto; }
  .section-option { grid-template-columns: 1fr auto; }
  .section-option .muted { grid-column: 1 / -1; }
  table.timetable { min-width: 0; font-size: 11px; }
  table.timetable th:first-child { width: 26px; }
  table.timetable th, table.timetable td { padding: 2px; }
}