/* ─────────────────────────────────────────────────────────────────────────
   方向 B · AI 營運儀表板 共用樣式
   Token 自使用者參考圖提取（玻璃質感 AI 儀表板，光／暗雙模式）。
   圖表色盤已通過 dataviz 驗證器（CVD、亮度帶、對比）。
   ───────────────────────────────────────────────────────────────────────── */

:root {
  --bg:        #f3f5f9;
  --card:      #ffffff;
  --card-soft: #f8fafc;
  --ink:       #101828;
  --sub:       #475467;
  --mut:       #5d6b82;   /* 小字安全 ≥4.5:1 */
  --line:      #e7ebf2;
  --line-soft: #eef1f6;

  --accent:      #3b82f6;
  --accent-ink:  #2563eb;  /* 文字用 */
  --accent-tint: rgba(59, 130, 246, 0.10);
  --grad: linear-gradient(135deg, #8789f0 0%, #4a8cf5 100%);
  --grad-shadow: 0 6px 18px rgba(74, 140, 245, 0.35);

  --up:   #0e8f62;
  --down: #d92d20;
  --warn: #b54708;

  /* 圖表色序（已驗證，冷暖交錯）*/
  --c1: #3b82f6;
  --c2: #f59e0b;
  --c3: #14b8a6;
  --c4: #b16be0;

  --shadow-card: 0 1px 2px rgb(16 24 40 / 0.04), 0 8px 24px rgb(16 24 40 / 0.06);

  --font-ui:   'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  --r-lg: 16px; --r-md: 12px; --r-sm: 8px; --r-full: 999px;
  --dur: 150ms;
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

[data-theme="dark"] {
  --bg:        #0a0e1a;
  --card:      #111726;
  --card-soft: #0d1320;
  --ink:       #e9edf6;
  --sub:       #a9b2c5;
  --mut:       #98a2b8;
  --line:      rgba(255, 255, 255, 0.08);
  --line-soft: rgba(255, 255, 255, 0.05);

  --accent:      #5b9bf7;
  --accent-ink:  #8db9f9;
  --accent-tint: rgba(91, 155, 247, 0.14);
  --grad: linear-gradient(135deg, #8f83f0 0%, #4a8cf5 100%);
  --grad-shadow: 0 6px 22px rgba(74, 140, 245, 0.45);

  --up:   #3ecf96;
  --down: #f97066;
  --warn: #f0a24a;

  --c1: #4a8ceb;
  --c2: #bd850f;
  --c3: #16ab97;
  --c4: #a578dd;

  --shadow-card: 0 0 0 1px rgba(255, 255, 255, 0.04), 0 12px 32px rgb(0 0 0 / 0.5);
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  .live-dot::after { animation: none !important; }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--font-ui); font-size: 14px; line-height: 1.5;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; padding: 0; }
input { font: inherit; }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }
p { margin: 0; }
[hidden] { display: none !important; }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

:focus-visible { outline: 2px solid var(--accent-ink); outline-offset: 2px; }

.skip-link {
  position: absolute; left: 16px; top: -48px; z-index: 60;
  background: var(--ink); color: var(--bg); font-size: 13px; font-weight: 500;
  padding: 8px 16px; border-radius: var(--r-sm);
  transition: top var(--dur) var(--ease);
}
.skip-link:focus-visible { top: 12px; }

/* ─── App 骨架：側欄 236 / 主欄 / 右軌 320 ──────────────────────────── */
.ai-app { display: grid; grid-template-columns: 236px minmax(0, 1fr); min-height: 100vh; }

.ai-side {
  background: var(--card); border-right: 1px solid var(--line);
  position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column; padding: 20px 14px 14px;
}
.ai-logo { display: flex; align-items: center; gap: 11px; padding: 0 8px 20px; }
.ai-logo-mark {
  width: 34px; height: 34px; border-radius: 10px; flex-shrink: 0;
  background: var(--grad); box-shadow: var(--grad-shadow);
  display: grid; place-items: center; color: #fff;
}
.ai-logo-name { font-size: 14.5px; font-weight: 650; }
.ai-logo-sub { font-size: 11px; color: var(--mut); font-family: var(--font-mono); }

.ai-nav { flex: 1; display: flex; flex-direction: column; gap: 3px; overflow-y: auto; }
.ai-nav a {
  display: flex; align-items: center; gap: 11px;
  padding: 9px 12px; border-radius: 10px;
  font-size: 13.5px; color: var(--sub);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.ai-nav a svg { width: 16px; height: 16px; flex-shrink: 0; }
.ai-nav a:hover { background: var(--card-soft); color: var(--ink); }
.ai-nav a.active { background: var(--accent-tint); color: var(--accent-ink); font-weight: 600; }
.ai-nav .kbd {
  margin-left: auto; font-family: var(--font-mono); font-size: 10.5px;
  color: var(--mut); border: 1px solid var(--line); border-radius: 5px; padding: 1px 5px;
}

.ai-user {
  border-top: 1px solid var(--line); margin-top: 12px; padding: 12px 8px 0;
  display: flex; align-items: center; gap: 10px;
}
.ai-avatar {
  width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0;
  background: var(--accent-tint); color: var(--accent-ink);
  display: grid; place-items: center; font-size: 13px; font-weight: 600;
}
.ai-user-name { font-size: 13px; font-weight: 550; }
.ai-user-role { font-size: 11px; color: var(--mut); }

/* ─── 主欄 ──────────────────────────────────────────────────────────── */
.ai-main { min-width: 0; display: flex; flex-direction: column; }

.ai-top {
  display: flex; align-items: center; gap: 20px;
  padding: 20px 24px 0;
}
.ai-greet h1 { font-size: 22px; letter-spacing: -0.015em; }
.ai-greet p { font-size: 13px; color: var(--sub); margin-top: 3px; }
.ask-pill {
  flex: 1; max-width: 430px; margin-inline: auto;
  display: flex; align-items: center; gap: 10px;
  height: 42px; padding: 0 6px 0 16px;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-full);
  box-shadow: var(--shadow-card); color: var(--mut); font-size: 13px;
  cursor: text;
}
.ask-pill svg { width: 15px; height: 15px; flex-shrink: 0; }
.ask-pill .kbd { font-family: var(--font-mono); font-size: 11px; color: var(--mut); margin-left: auto; }
.ask-send {
  width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0;
  background: var(--ink); color: var(--bg); display: grid; place-items: center;
  transition: transform var(--dur) var(--ease);
}
.ask-send:hover { transform: translateX(1px); }
.ai-meta { text-align: right; flex-shrink: 0; }
.ai-meta .clock { font-family: var(--font-mono); font-size: 15px; font-weight: 600; }
.ai-meta .date { font-size: 11.5px; color: var(--mut); }
.icon-btn {
  width: 38px; height: 38px; border-radius: 50%; position: relative; flex-shrink: 0;
  background: var(--card); border: 1px solid var(--line); color: var(--sub);
  display: grid; place-items: center;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.icon-btn:hover { color: var(--ink); border-color: var(--sub); }
.icon-btn .bub {
  position: absolute; top: -4px; right: -4px; min-width: 17px; height: 17px;
  border-radius: var(--r-full); background: var(--accent); color: #fff;
  font-family: var(--font-mono); font-size: 10px; font-weight: 600;
  display: grid; place-items: center; padding: 0 4px;
}

.ai-body {
  display: grid; grid-template-columns: minmax(0, 1fr) 320px;
  gap: 20px; padding: 20px 24px 28px; align-items: start;
}
.ai-col { display: flex; flex-direction: column; gap: 20px; min-width: 0; }
.ai-rail { display: flex; flex-direction: column; gap: 20px; }

/* ─── AI 摘要 hero ──────────────────────────────────────────────────── */
.ai-hero {
  display: flex; align-items: center; gap: 26px;
  background: var(--card); border-radius: var(--r-lg);
  box-shadow: var(--shadow-card); padding: 22px 26px;
}
.orb {
  width: 116px; height: 116px; border-radius: 50%; flex-shrink: 0; position: relative;
  background:
    radial-gradient(circle at 32% 26%, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0) 34%),
    radial-gradient(circle at 68% 72%, #8789f0 0%, #4a8cf5 42%, #cfe0fa 88%);
  box-shadow:
    inset -10px -14px 28px rgba(37, 99, 235, 0.35),
    inset 6px 8px 18px rgba(255, 255, 255, 0.65),
    0 14px 34px rgba(74, 140, 245, 0.28);
}
.orb::after {
  content: ''; position: absolute; right: -8px; top: 16px;
  width: 20px; height: 20px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, rgba(255,255,255,0.9), #7ea9f4 70%);
  box-shadow: 0 4px 10px rgba(74, 140, 245, 0.3);
}
[data-theme="dark"] .orb {
  background:
    radial-gradient(circle at 34% 28%, rgba(255,255,255,0.55) 0%, rgba(255,255,255,0) 30%),
    radial-gradient(circle at 66% 70%, #a78bfa 0%, #4a6cf5 46%, #0d1424 92%);
  box-shadow:
    inset -10px -14px 30px rgba(20, 24, 48, 0.8),
    inset 6px 8px 18px rgba(180, 200, 255, 0.35),
    0 0 44px rgba(122, 140, 250, 0.35);
}
.ai-hero-body { flex: 1; min-width: 0; }
.ai-hero-label { display: flex; align-items: center; gap: 7px; font-size: 12px; color: var(--mut); margin-bottom: 8px; }
.ai-hero-label svg { width: 14px; height: 14px; color: var(--accent-ink); }
.ai-hero-title { font-size: 22px; font-weight: 650; letter-spacing: -0.015em; line-height: 1.3; }
.ai-hero-title .hl { color: var(--accent-ink); }
.ai-hero-sub { font-size: 13.5px; color: var(--sub); margin-top: 8px; max-width: 52ch; }
.ai-hero-actions { display: flex; flex-direction: column; gap: 9px; flex-shrink: 0; min-width: 172px; }

/* 按鈕 */
.ab {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 38px; padding: 0 18px; border-radius: var(--r-full);
  font-size: 13px; font-weight: 550; white-space: nowrap;
  transition: transform var(--dur) var(--ease), filter var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.ab svg { width: 15px; height: 15px; }
.ab:active { transform: scale(0.98); }
.ab-grad { background: var(--grad); color: #fff; box-shadow: var(--grad-shadow); }
.ab-grad:hover { filter: brightness(1.06); }
.ab-card { background: var(--card); color: var(--ink); border: 1px solid var(--line); }
.ab-card:hover { border-color: var(--sub); }
.ab-ghost { color: var(--sub); }
.ab-ghost:hover { color: var(--ink); }
.ab-sm { height: 30px; padding: 0 12px; font-size: 12px; }
.ab:disabled { opacity: 0.45; cursor: not-allowed; }

/* ─── KPI 迷你趨勢卡 ────────────────────────────────────────────────── */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.kpi {
  background: var(--card); border-radius: var(--r-lg);
  box-shadow: var(--shadow-card); padding: 16px 18px 14px;
}
.kpi-top { display: flex; align-items: center; justify-content: space-between; }
.kpi-label { font-size: 12.5px; color: var(--sub); font-weight: 500; }
.kpi-ico {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--accent-tint); color: var(--accent-ink);
  display: grid; place-items: center;
}
.kpi-ico svg { width: 14px; height: 14px; }
.kpi-num { font-size: 29px; font-weight: 650; letter-spacing: -0.02em; margin-top: 8px; line-height: 1.1; font-variant-numeric: tabular-nums; }
.kpi-num .unit { font-size: 14px; font-weight: 500; color: var(--mut); margin-left: 2px; }
.kpi-delta { display: flex; align-items: center; gap: 6px; font-size: 12px; margin-top: 5px; }
.kpi-delta .d { font-weight: 600; display: inline-flex; align-items: center; gap: 2px; }
.kpi-delta .d svg { width: 11px; height: 11px; }
.d-up { color: var(--up); }
.d-down { color: var(--down); }
.kpi-delta .vs { color: var(--mut); }
.kpi .spark { width: 100%; height: 38px; margin-top: 8px; }

/* ─── 面板 ──────────────────────────────────────────────────────────── */
.panel { background: var(--card); border-radius: var(--r-lg); box-shadow: var(--shadow-card); min-width: 0; }
.panel-hd { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 20px 4px; }
.panel-title { font-size: 15px; font-weight: 600; }
.panel-sub { font-size: 12px; color: var(--mut); margin-top: 2px; }
.panel-bd { padding: 10px 20px 18px; }
.range-pill {
  height: 30px; padding: 0 26px 0 12px; border-radius: var(--r-full);
  background: var(--card-soft); border: 1px solid var(--line); color: var(--sub);
  font-size: 12px; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='11' viewBox='0 0 24 24' fill='none' stroke='%235d6b82' stroke-width='2.4'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 9px center;
}

/* 圖表共用 */
.chart-wrap { position: relative; }
.legend { display: flex; gap: 18px; flex-wrap: wrap; font-size: 12px; color: var(--sub); padding: 4px 0 8px; }
.legend .li { display: inline-flex; align-items: center; gap: 7px; }
.legend .sw { width: 10px; height: 10px; border-radius: 3px; }
.tip {
  position: absolute; z-index: 5; pointer-events: none; display: none;
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  box-shadow: var(--shadow-card); padding: 7px 11px; font-size: 12px; white-space: nowrap;
}
.tip .t-h { font-family: var(--font-mono); font-size: 11px; color: var(--mut); margin-bottom: 3px; }
.tip .t-r { display: flex; align-items: center; gap: 7px; }
.tip .t-r .sw { width: 8px; height: 8px; border-radius: 2px; }
.tip .t-r b { font-family: var(--font-mono); font-weight: 600; margin-left: auto; padding-left: 12px; }
.ax { font-family: var(--font-mono); font-size: 10.5px; fill: var(--mut); }
.gridline { stroke: var(--line-soft); stroke-width: 1; }
.chart-note { font-size: 11.5px; color: var(--mut); }
details.data-table summary { font-size: 12px; color: var(--mut); cursor: pointer; padding: 6px 0 2px; }
details.data-table summary:hover { color: var(--ink); }

/* 條形列 */
.bar-row { display: grid; grid-template-columns: 96px 1fr 52px; align-items: center; gap: 12px; padding: 7px 0; }
.bar-row .bl { font-size: 12.5px; color: var(--sub); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar-row .track { height: 14px; display: flex; align-items: center; }
.bar-row .fill { height: 14px; border-radius: 4px; background: var(--c1); min-width: 3px; transition: filter var(--dur) var(--ease); }
.bar-row:hover .fill { filter: brightness(1.12); }
.bar-row .bv { font-family: var(--font-mono); font-size: 12px; text-align: right; color: var(--ink); }

/* ─── 表格 ──────────────────────────────────────────────────────────── */
table.ai-table { width: 100%; border-collapse: collapse; font-size: 13px; }
table.ai-table th {
  text-align: left; font-size: 10.5px; font-weight: 600;
  letter-spacing: 0.07em; text-transform: uppercase; color: var(--mut);
  padding: 8px 10px; border-bottom: 1px solid var(--line);
}
table.ai-table td { padding: 10px; border-bottom: 1px solid var(--line-soft); vertical-align: middle; }
table.ai-table tbody tr:last-child td { border-bottom: 0; }
table.ai-table tbody tr { transition: background var(--dur) var(--ease); }
table.ai-table tbody tr:hover { background: var(--card-soft); }
.td-num { text-align: right; font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.td-code { font-family: var(--font-mono); font-size: 12px; color: var(--sub); }

/* 狀態（語意保留色，永遠帶文字） */
.st { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--sub); }
.st i { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.st-ok i { background: var(--up); }
.st-warn i { background: var(--warn); }
.st-fail i { background: var(--down); }
.st-fail { color: var(--down); font-weight: 550; }

/* chip 標籤（變更類型等） */
.chg { display: inline-flex; align-items: center; font-size: 11.5px; font-weight: 550; padding: 2px 9px; border-radius: var(--r-full); }
.chg-add { background: rgba(14, 143, 98, 0.12); color: var(--up); }
.chg-mod { background: var(--accent-tint); color: var(--accent-ink); }
.chg-del { background: rgba(217, 45, 32, 0.10); color: var(--down); }

/* ─── 右軌 ──────────────────────────────────────────────────────────── */
.rail-hd { display: flex; align-items: center; justify-content: space-between; padding: 16px 18px 2px; }
.rail-title { font-size: 14px; font-weight: 600; }
.live { display: inline-flex; align-items: center; gap: 7px; font-size: 11.5px; color: var(--up); font-weight: 550; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--up); position: relative; }
.live-dot::after {
  content: ''; position: absolute; inset: -3px; border-radius: 50%;
  border: 1.5px solid var(--up); opacity: 0.55;
  animation: live-ring 2s var(--ease) infinite;
}
@keyframes live-ring { 0% { transform: scale(0.6); opacity: 0.55; } 100% { transform: scale(1.5); opacity: 0; } }

.tl { padding: 8px 18px 14px; }
.tl-item { display: grid; grid-template-columns: 40px 18px 1fr; gap: 6px; position: relative; padding: 9px 0; }
.tl-time { font-family: var(--font-mono); font-size: 11px; color: var(--mut); padding-top: 2px; }
.tl-axis { position: relative; display: flex; justify-content: center; }
.tl-axis::before { content: ''; position: absolute; top: 20px; bottom: -14px; width: 1px; background: var(--line); }
.tl-item:last-child .tl-axis::before { display: none; }
.tl-dot {
  width: 15px; height: 15px; border-radius: 50%; margin-top: 2px; z-index: 1;
  background: var(--accent-tint); color: var(--accent-ink);
  display: grid; place-items: center;
}
.tl-dot svg { width: 9px; height: 9px; }
.tl-dot.warn { background: rgba(217, 45, 32, 0.12); color: var(--down); }
.tl-dot.ok { background: rgba(14, 143, 98, 0.14); color: var(--up); }
.tl-kind { font-size: 11px; color: var(--mut); }
.tl-title { font-size: 12.5px; color: var(--ink); font-weight: 500; margin-top: 1px; line-height: 1.4; }
.tl-foot { padding: 4px 18px 16px; }
.tl-foot .ab { width: 100%; }

.chips { display: flex; flex-direction: column; gap: 8px; padding: 10px 18px 4px; }
.chips p { font-size: 12px; color: var(--mut); margin-bottom: 2px; }
.chip {
  display: block; width: 100%; text-align: left;
  font-size: 12.5px; color: var(--sub);
  padding: 9px 13px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--card-soft);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.chip:hover { border-color: var(--accent); color: var(--ink); }
.cmd { display: flex; gap: 8px; padding: 12px 18px 16px; }
.cmd input {
  flex: 1; min-width: 0; height: 38px; padding: 0 14px;
  background: var(--card-soft); border: 1px solid var(--line); border-radius: var(--r-full);
  color: var(--ink); font-size: 13px;
}
.cmd input::placeholder { color: var(--mut); }
.cmd input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-tint); }

/* ─── 響應式 ────────────────────────────────────────────────────────── */
@media (max-width: 1240px) {
  .ai-body { grid-template-columns: 1fr; }
  .ai-rail { display: grid; grid-template-columns: 1fr 1fr; align-items: start; }
}
@media (max-width: 1080px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .ai-app { grid-template-columns: 1fr; }
  .ai-side { display: none; }
  .ai-top { flex-wrap: wrap; padding: 16px 16px 0; }
  .ask-pill { order: 3; flex-basis: 100%; max-width: none; }
  .ai-body { padding: 16px; }
  .ai-rail { grid-template-columns: 1fr; }
  .ai-hero { flex-direction: column; align-items: flex-start; }
  .ai-hero-actions { flex-direction: row; flex-wrap: wrap; }
  .orb { width: 84px; height: 84px; }
}
@media (max-width: 560px) {
  .kpi-grid { grid-template-columns: 1fr; }
}