/* 黑橘：夜間指揮所。暖黑底、一盞橘光；橘色只用在重點、要注意的東西和「光」。
   色票和字型跟簡報同一套（來源：pan-agent/output/ai-agent-guide.html、風格樣本 A-黑橘）。
   改之前的樣式備份在 backups/app-before-black-orange-2026-10-18.css。 */
:root {
  --bg: #090807;
  --ink: #f4f1ec;
  --ink2: #cdc7bf;
  --mute: #8e8882;
  --dim: #57524c;
  --line: #2a2623;
  --panel: #12100e;
  --panel2: #171411;
  --sig: #ff6b1a;
  --sig-hi: #ffa060;
  --ember: #b83c0a;
  --deep: #3a1203;
  --on-sig: #1c0a01;
  --glow: rgba(255, 107, 26, 0.16);
  --radius: 14px;
  --lat: "Barlow Condensed", "Noto Sans TC", "PingFang TC", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/1.75 "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  overflow-wrap: anywhere;
}
/* 暗角和淡淡的顆粒，讓黑有質感 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 120% 100% at 50% 30%, rgba(0, 0, 0, 0) 55%, rgba(0, 0, 0, 0.6) 100%);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  opacity: 0.06;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 .9 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}
.top, main { position: relative; z-index: 1; }
a { color: var(--sig-hi); text-underline-offset: 3px; }
a:hover { color: var(--sig); }
.lat { font-family: var(--lat); }
main { max-width: 920px; margin: 0 auto; padding: 28px 16px 120px; }
.board-body main { max-width: 1280px; }

/* 頁首 */
.top { display: flex; align-items: center; justify-content: space-between; gap: 8px 16px; padding: 14px 20px; border-bottom: 1px solid var(--line); background: rgba(9, 8, 7, 0.85); }
.brand { font-weight: 900; color: var(--ink); text-decoration: none; letter-spacing: 0.02em; }
.top nav a { margin-left: 18px; text-decoration: none; color: var(--ink2); font-weight: 700; }
.top nav a:hover { color: var(--sig); }

/* 字 */
h1 { font-size: clamp(30px, 5vw, 46px); font-weight: 900; line-height: 1.2; margin: 10px 0 14px; letter-spacing: -0.005em; }
h2 { font-size: 22px; font-weight: 900; margin: 32px 0 12px; line-height: 1.35; }
h3 { font-size: 18px; font-weight: 700; margin: 24px 0 6px; }
.lead { font-size: 18px; color: var(--ink2); }
.muted { color: var(--mute); }
.small { font-size: 14px; }
strong { color: var(--ink); }
pre, code { font-family: var(--mono); font-size: 14px; }
pre { background: var(--panel2); border: 1px solid var(--line); color: var(--ink); padding: 10px 12px; border-radius: 10px; overflow-x: auto; white-space: pre-wrap; word-break: break-word; margin: 6px 0; }
:not(pre) > code { background: var(--panel2); border: 1px solid var(--line); color: var(--ink); padding: 1px 6px; border-radius: 5px; }
table { border-collapse: collapse; width: 100%; margin: 12px 0; }
th, td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
th { color: var(--mute); font-weight: 700; background: var(--panel2); }
blockquote { margin: 14px 0; padding: 10px 16px; border-left: 3px solid var(--sig); background: linear-gradient(90deg, rgba(255, 107, 26, 0.1), rgba(255, 107, 26, 0) 70%); color: var(--ink2); border-radius: 0 10px 10px 0; }
blockquote p { margin: 4px 0; }
blockquote strong { color: var(--sig-hi); }

/* 按鈕與輸入 */
button { font: inherit; padding: 6px 14px; border-radius: 10px; border: 1px solid var(--line); background: var(--panel2); color: var(--ink); cursor: pointer; transition: border-color 0.2s, box-shadow 0.2s; }
button:hover { border-color: var(--sig); }
button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 2px solid var(--sig); outline-offset: 2px; }
button.primary { background: var(--sig); border-color: var(--sig); color: var(--on-sig); font-weight: 700; box-shadow: 0 0 18px rgba(255, 107, 26, 0.35); }
button.primary:hover { background: var(--sig-hi); border-color: var(--sig-hi); }
button.danger { border-color: var(--ember); color: var(--sig-hi); }
button.link { border: none; background: none; color: var(--sig-hi); padding: 0; }
input, textarea, select { font: inherit; padding: 6px 10px; border-radius: 10px; border: 1px solid var(--line); background: var(--panel2); color: var(--ink); max-width: 100%; }
textarea { width: 100%; }
::placeholder { color: var(--dim); }

/* 卡片：頂端一條橘線，加由上往下淡的橘光 */
.stage-card, .ai-box, .md, .reply, .controls, .login {
  background: linear-gradient(180deg, rgba(255, 107, 26, 0.09), rgba(255, 107, 26, 0) 140px), var(--panel);
  border: 1px solid var(--line);
  border-top: 2px solid var(--sig);
  border-radius: var(--radius);
}

/* 課程時間軸 */
.intro p { color: var(--ink2); }
.timeline { list-style: none; padding: 0; margin: 24px 0; }
.stage-card { display: flex; gap: 18px; padding: 20px; margin-bottom: 16px; }
.stage-card.is-now { box-shadow: 0 0 0 1px var(--sig), 0 0 40px rgba(255, 107, 26, 0.18); }
.stage-card.has-red { border-left: 4px solid var(--sig); }
.stage-num { flex: none; width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; font: 800 24px/1 var(--lat); color: var(--sig); border: 1.5px solid var(--sig); box-shadow: 0 0 0 6px var(--glow); }
.stage-card.is-now .stage-num { background: var(--sig); color: var(--on-sig); box-shadow: 0 0 0 8px rgba(255, 107, 26, 0.16), 0 0 24px rgba(255, 140, 60, 0.8); }
.stage-main { min-width: 0; flex: 1; }
.stage-main h2 { margin: 2px 0 6px; font-size: 24px; }
.stage-main h2 a { color: var(--ink); text-decoration: none; }
.stage-main h2 a:hover { color: var(--sig-hi); }
.stage-main p { margin: 0; color: var(--ink2); }
.stage-when { font: 600 15px/1.4 var(--lat); letter-spacing: 0.06em; color: var(--mute); }
.stage-live { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 6px; }
.now-tag { margin-left: 8px; font: 700 13px/1 "Noto Sans TC", sans-serif; letter-spacing: 0; color: var(--on-sig); background: var(--sig); padding: 3px 10px; border-radius: 999px; box-shadow: 0 0 14px rgba(255, 107, 26, 0.55); }
.outline-block { margin-top: 12px; }
.outline-label { font-size: 13px; font-weight: 700; color: var(--sig-hi); letter-spacing: 0.04em; }
.outline-block p, .outline-block ul { margin: 4px 0; color: var(--ink2); }
.outline-block h3 { font-size: 15px; color: var(--ink2); }

/* 標籤與狀態：只有最急的用實心發光橘 */
.tag { display: inline-block; font-size: 13px; padding: 2px 10px; border-radius: 999px; border: 1px solid var(--line); color: var(--ink2); background: var(--panel2); }
.tag-now { border-color: var(--sig); color: var(--sig-hi); background: transparent; }
.tag-ok { color: var(--mute); }
.tag-stuck { border-color: var(--sig-hi); color: var(--sig-hi); background: transparent; }
.tag-red { background: var(--sig); border-color: var(--sig); color: var(--on-sig); font-weight: 700; box-shadow: 0 0 12px rgba(255, 107, 26, 0.5); }
.red-label { color: var(--sig); font-weight: 700; font-size: 13px; align-self: center; }
.pill { display: inline-block; font-size: 12px; padding: 1px 9px; border-radius: 999px; border: 1px solid var(--line); white-space: nowrap; }
.st-waiting { color: var(--mute); border-color: var(--dim); }
.st-answered { color: var(--ink2); border-color: var(--ink2); }
.st-review { color: var(--sig-hi); border-color: var(--sig); }
.st-instructor { background: var(--sig); border-color: var(--sig); color: var(--on-sig); font-weight: 700; box-shadow: 0 0 10px rgba(255, 107, 26, 0.5); }
.st-resolved { color: var(--mute); border-color: var(--line); background: var(--panel2); }

/* 階段頁 */
.stage-head { margin-bottom: 8px; }
.agent-note { font-size: 13px; color: var(--mute); border: 1px dashed var(--line); border-radius: 10px; padding: 8px 12px; }
.ai-box { padding: 6px 20px 16px; margin: 18px 0; }
.ai-box h2 { margin-top: 16px; }
.cmd { position: relative; margin: 8px 0; }
.cmd pre { padding-right: 76px; }
.cmd .copy { position: absolute; top: 6px; right: 6px; font-size: 13px; padding: 2px 10px; }
.cmd-label { font-size: 13px; color: var(--mute); }
.invoke { padding-left: 0; list-style: none; }
.invoke li { margin: 8px 0; display: flex; gap: 10px; align-items: flex-start; color: var(--ink2); }
.invoke li strong { color: var(--ink); }
.invoke .logo { width: 22px; height: 22px; flex: none; margin-top: 3px; object-fit: contain; }
.md { padding: 6px 22px 18px; }
.md h2 { border-bottom: 1px solid var(--line); padding-bottom: 6px; }
.md h3 { color: var(--ink); }
.md li { margin: 4px 0; color: var(--ink2); }
.md p { color: var(--ink2); }
.md table { display: block; overflow-x: auto; max-width: 100%; }
.md td, .md th { min-width: 4em; }
.md a, .md li, .md p { overflow-wrap: anywhere; }
.questions .q-list { list-style: none; padding: 0; }
.q { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; margin-bottom: 8px; }
.q-red { border-left: 4px solid var(--sig); }
.q-head { color: var(--mute); font-size: 14px; }
.q-title { color: var(--ink2); font-size: 14px; word-break: break-word; }
.pager { display: flex; justify-content: space-between; gap: 12px; margin-top: 28px; }

/* 講義 */
.handouts { margin-top: 28px; }
.handout { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 16px; margin-bottom: 10px; }
.handout[open] { border-top: 2px solid var(--sig); }
.handout summary { cursor: pointer; display: flex; flex-wrap: wrap; gap: 4px 10px; align-items: baseline; }
.handout summary strong { font-weight: 900; font-size: 17px; }
.handout summary .small { flex-basis: 100%; color: var(--mute); }
.queried { font: 600 13px/1 var(--lat); letter-spacing: 0.04em; color: var(--sig-hi); border: 1px solid var(--ember); padding: 3px 9px; border-radius: 999px; }
.handout .md { border: none; padding: 0; background: none; }
.handout-body h1 { font-size: 26px; margin: 14px 0 8px; }
.handout-body h2 { font-size: 20px; }
hr { border: none; border-top: 1px solid var(--line); margin: 20px 0; }

/* 單的進度頁 */
.ticket-status { font-size: 18px; }
.reply { padding: 4px 18px 12px; margin: 14px 0; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 12px 0; }
.actions textarea { flex: 1 1 100%; }
.field { margin: 8px 0; }
.field-label { font-size: 13px; color: var(--mute); }
.field ol { margin: 4px 0; color: var(--ink2); }

/* 右下角「我有問題」：發光的橘色膠囊 */
.widget { position: fixed; right: 16px; bottom: 16px; z-index: 50; }
.widget-btn { background: var(--sig); border-color: var(--sig); color: var(--on-sig); font-weight: 900; padding: 12px 22px; border-radius: 999px; box-shadow: 0 0 0 6px rgba(255, 107, 26, 0.14), 0 0 28px rgba(255, 140, 60, 0.7); }
.widget-btn:hover { background: var(--sig-hi); }
.widget-form { width: min(360px, calc(100vw - 32px)); max-height: calc(100vh - 32px); overflow-y: auto; background: var(--panel); border: 1px solid var(--line); border-top: 2px solid var(--sig); border-radius: 16px; padding: 14px; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7); display: flex; flex-direction: column; gap: 8px; }
.widget-form label { display: flex; flex-direction: column; font-size: 14px; gap: 2px; color: var(--ink2); }
.widget-head { display: flex; justify-content: space-between; }
.widget-msg { font-size: 14px; color: var(--sig-hi); }
.mine-row { font-size: 14px; }

/* 講師看板 */
.login { max-width: 360px; margin: 60px auto; display: flex; flex-direction: column; gap: 10px; padding: 20px; }
.board-top { display: flex; justify-content: space-between; align-items: center; }
.controls { padding: 14px 18px; display: flex; flex-direction: column; gap: 10px; }
.control-row { display: flex; gap: 24px; flex-wrap: wrap; align-items: center; }
.control-group { display: flex; flex-direction: column; gap: 8px; }
.code-box { display: flex; align-items: baseline; gap: 12px; }
.code-big { font: 800 52px/1 var(--lat); letter-spacing: 0.06em; color: var(--sig); text-shadow: 0 0 24px rgba(255, 107, 26, 0.45); }
.code-input { width: 140px; }
.toggles { display: flex; flex-wrap: wrap; gap: 8px; }
.toggle { font-weight: 700; }
.toggle.on { background: var(--sig); border-color: var(--sig); color: var(--on-sig); box-shadow: 0 0 16px rgba(255, 107, 26, 0.4); }
.settings { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; margin: 10px 0; }
.set { display: flex; flex-direction: column; font-size: 14px; color: var(--ink2); }
.newclass { margin-top: 8px; }
.alert { background: var(--deep); border: 1px solid var(--sig); color: var(--ink); font-weight: 700; padding: 10px 14px; border-radius: 10px; margin: 12px 0; box-shadow: 0 0 24px rgba(255, 107, 26, 0.15); }
.health { background: var(--deep); border: 1px solid var(--sig); border-left: 6px solid var(--sig); color: var(--ink); font-weight: 700; padding: 12px 16px; border-radius: 10px; margin: 12px 0; display: flex; flex-direction: column; gap: 6px; box-shadow: 0 0 30px rgba(255, 107, 26, 0.2); }
.heat h2 { margin-top: 24px; }
.heat-row { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; margin-bottom: 6px; }
.heat-alert { border-color: var(--sig); }
.heat-stage { font-weight: 700; display: flex; justify-content: space-between; gap: 8px; }
.heat-count { color: var(--mute); font: 600 15px/1.6 var(--lat); letter-spacing: 0.04em; }
.heat-steps { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.heat-step { font-size: 13px; border: 1px solid var(--line); color: var(--sig-hi); padding: 1px 8px; border-radius: 999px; }
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.red-title { color: var(--sig); }
.review-title { color: var(--sig-hi); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; margin-bottom: 8px; }
.card-red { border-left: 4px solid var(--sig); background: linear-gradient(90deg, rgba(255, 107, 26, 0.08), rgba(255, 107, 26, 0) 50%), var(--panel); }
.card-review { border: 1px solid var(--sig); border-top: 2px solid var(--sig); background: linear-gradient(180deg, rgba(255, 107, 26, 0.08), rgba(255, 107, 26, 0) 120px), var(--panel); }
.card-head { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: space-between; }
.card-toggle { all: unset; cursor: pointer; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; flex: 1 1 auto; min-height: 44px; }
.card-toggle:focus-visible { outline: 2px solid var(--sig); border-radius: 6px; }
.seat { font-size: 22px; font-weight: 900; color: var(--ink); }
.card-title { color: var(--ink2); font-size: 14px; word-break: break-word; }
.card-body { margin-top: 8px; border-top: 1px dashed var(--line); padding-top: 8px; }
.warn { background: var(--deep); border: 1px solid var(--ember); color: var(--sig-hi); padding: 6px 10px; border-radius: 8px; font-size: 14px; }
.done { margin-top: 20px; }
.done summary { color: var(--mute); cursor: pointer; }
button.big { min-height: 44px; padding: 8px 16px; font-size: 16px; }
.big-input { min-height: 44px; font-size: 16px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 10px 0; }
.btn-row textarea { flex: 1 1 100%; }
button.quick { min-height: 44px; padding: 6px 14px; font-size: 15px; flex: none; }
.small-btn { font-size: 12px; padding: 1px 8px; }
.board-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.board-main section:first-child h2, .board-side section:first-child h2 { margin-top: 0; }

@media (max-width: 800px) {
  .cols, .board-grid { grid-template-columns: minmax(0, 1fr); }
  .code-big { font-size: 40px; }
  .board-body main { padding: 12px 12px 80px; }
  .btn-row button.big { flex: 1 1 30%; }
  .card { padding: 12px; }
  .seat { font-size: 20px; }
}
@media (max-width: 600px) {
  .top { flex-wrap: wrap; gap: 4px 12px; padding: 10px 12px; }
  .brand { font-size: 15px; }
  .top nav a { margin-left: 0; margin-right: 12px; font-size: 15px; }
  .stage-card { padding: 16px 14px; gap: 12px; }
  .md, .ai-box { padding-left: 14px; padding-right: 14px; }
}

/* 列印／存成 PDF：白底黑字，拿掉光和顆粒 */
@media print {
  :root { color-scheme: light; }
  body { background: #fff; color: #000; }
  body::before, body::after { display: none; }
  .top, .widget, .no-print, #help-widget { display: none !important; }
  main { padding: 0; max-width: none; }
  .stage-card, .md, .ai-box { background: #fff; border-color: #ccc; border-top: 2px solid #ff6b1a; box-shadow: none; break-inside: avoid; }
  .stage-main h2 a, h1, h2, h3, strong { color: #000; }
  .stage-main p, .outline-block p, .outline-block ul, .md li, .md p { color: #222; }
  .stage-num { color: #ff6b1a; box-shadow: none; }
  pre, :not(pre) > code { background: #f4f4f4; color: #000; border-color: #ddd; }
}