/* ── 主題變數 ─────────────────────────────────────────── */
:root {
  color-scheme: light;
  --surface-1: #fcfcfb;
  --page: #f9f9f7;
  --raised: #ffffff;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.1);
  --border-strong: rgba(11, 11, 11, 0.18);

  --series-1: #2a78d6;
  --series-2: #eb6834;
  --series-3: #1baf7a;

  --seq-100: #cde2fb;
  --seq-250: #86b6ef;
  --seq-450: #2a78d6;
  --seq-600: #184f95;

  --good: #0ca30c;
  --good-text: #006300;
  --warning: #fab219;
  --serious: #ec835a;
  --critical: #d03b3b;

  --shadow: 0 1px 2px rgba(11, 11, 11, 0.05), 0 4px 12px rgba(11, 11, 11, 0.04);
  --radius: 14px;
  --radius-sm: 8px;
}

@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme='light'])) {
    color-scheme: dark;
    --surface-1: #1a1a19;
    --page: #0d0d0d;
    --raised: #222221;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted: #898781;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.1);
    --border-strong: rgba(255, 255, 255, 0.18);

    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;

    --seq-100: #184f95;
    --seq-250: #256abf;
    --seq-450: #3987e5;
    --seq-600: #86b6ef;

    --good-text: #0ca30c;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 4px 12px rgba(0, 0, 0, 0.3);
  }
}

:root[data-theme='dark'] {
  color-scheme: dark;
  --surface-1: #1a1a19;
  --page: #0d0d0d;
  --raised: #222221;
  --text-primary: #ffffff;
  --text-secondary: #c3c2b7;
  --text-muted: #898781;
  --grid: #2c2c2a;
  --axis: #383835;
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.18);

  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;

  --seq-100: #184f95;
  --seq-250: #256abf;
  --seq-450: #3987e5;
  --seq-600: #86b6ef;

  --good-text: #0ca30c;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* ── 基礎 ─────────────────────────────────────────────── */
* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--page);
  color: var(--text-primary);
  font-family: system-ui, -apple-system, 'Segoe UI', 'Noto Sans TC', sans-serif;
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { margin: 0; font-weight: 650; letter-spacing: -0.01em; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--series-1); }

.hidden { display: none !important; }
.tnum { font-variant-numeric: tabular-nums; }

/* ── 登入 ─────────────────────────────────────────────── */
#login {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 24px;
}
#login form {
  width: min(360px, 100%);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  text-align: center;
}
#login .logo { font-size: 40px; line-height: 1; margin-bottom: 12px; }
#login h1 { font-size: 20px; margin-bottom: 24px; }
#login input { width: 100%; margin-bottom: 12px; }
#login button { width: 100%; }
#login .err { color: var(--critical); font-size: 13px; min-height: 20px; }

/* ── 版面 ─────────────────────────────────────────────── */
#app { display: flex; min-height: 100dvh; }

nav.side {
  width: 216px;
  flex: none;
  background: var(--surface-1);
  border-right: 1px solid var(--border);
  padding: 20px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: sticky;
  top: 0;
  height: 100dvh;
}
nav.side .brand {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 10px 18px;
  font-weight: 700;
  font-size: 16px;
}
nav.side button {
  display: flex;
  align-items: center;
  gap: 10px;
  background: none;
  border: 0;
  border-radius: var(--radius-sm);
  padding: 9px 10px;
  text-align: left;
  cursor: pointer;
  color: var(--text-secondary);
  font-weight: 500;
}
nav.side button:hover { background: color-mix(in srgb, var(--text-primary) 6%, transparent); }
nav.side button.active { background: color-mix(in srgb, var(--series-1) 12%, transparent); color: var(--series-1); font-weight: 650; }
nav.side .spacer { flex: 1; }

main { flex: 1; min-width: 0; padding: 24px 28px 80px; }

header.top {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}
header.top h1 { font-size: 22px; }
header.top .grow { flex: 1; }

/* ── 元件 ─────────────────────────────────────────────── */
.card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.card > h3 {
  font-size: 13px;
  font-weight: 650;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.card > h3 .grow { flex: 1; }

.grid { display: grid; gap: 16px; }
.cols-4 { grid-template-columns: repeat(4, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.span-2 { grid-column: span 2; }

/* 統計磚 */
.tile { display: flex; flex-direction: column; gap: 2px; }
.tile .label { font-size: 12px; color: var(--text-muted); font-weight: 550; }
.tile .value { font-size: 26px; font-weight: 680; letter-spacing: -0.02em; line-height: 1.2; }
.tile .value.sm { font-size: 20px; }
.tile .sub { font-size: 12px; color: var(--text-secondary); }
.tile .value.pos { color: var(--good-text); }
.tile .value.neg { color: var(--critical); }

/* 按鈕 */
button.btn {
  border: 1px solid var(--border-strong);
  background: var(--raised);
  border-radius: var(--radius-sm);
  padding: 7px 13px;
  cursor: pointer;
  font-weight: 550;
  font-size: 14px;
  transition: background 0.12s;
}
button.btn:hover { background: color-mix(in srgb, var(--text-primary) 6%, var(--raised)); }
button.btn.primary { background: var(--series-1); border-color: var(--series-1); color: #fff; }
button.btn.primary:hover { filter: brightness(1.08); }
button.btn.danger { color: var(--critical); border-color: color-mix(in srgb, var(--critical) 40%, transparent); }
button.btn.sm { padding: 4px 9px; font-size: 13px; }
button.btn.icon { padding: 6px 8px; }
button.btn:disabled { opacity: 0.5; cursor: not-allowed; }

input, select, textarea {
  background: var(--raised);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 8px 11px;
  width: 100%;
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid color-mix(in srgb, var(--series-1) 55%, transparent);
  outline-offset: -1px;
}
label.field { display: block; font-size: 12px; color: var(--text-secondary); font-weight: 550; margin-bottom: 3px; }
.row { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; }
.row > div { flex: 1; min-width: 110px; }
.row > div.narrow { flex: 0 0 130px; }

/* 表格 */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th {
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  padding: 6px 10px;
  border-bottom: 1px solid var(--grid);
  white-space: nowrap;
}
td { padding: 9px 10px; border-bottom: 1px solid var(--grid); }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:hover { background: color-mix(in srgb, var(--text-primary) 4%, transparent); }
.table-wrap { overflow-x: auto; }

.empty { color: var(--text-muted); font-size: 14px; text-align: center; padding: 28px 12px; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  white-space: nowrap;
}
.pill.good { color: var(--good-text); border-color: color-mix(in srgb, var(--good) 45%, transparent); background: color-mix(in srgb, var(--good) 10%, transparent); }
.pill.warn { color: color-mix(in srgb, var(--warning) 70%, var(--text-primary)); border-color: color-mix(in srgb, var(--warning) 55%, transparent); background: color-mix(in srgb, var(--warning) 14%, transparent); }
.pill.bad { color: var(--critical); border-color: color-mix(in srgb, var(--critical) 45%, transparent); background: color-mix(in srgb, var(--critical) 10%, transparent); }
.pill.muted { color: var(--text-muted); }

/* 進度條 */
.meter { height: 8px; border-radius: 4px; background: var(--grid); overflow: hidden; }
.meter > i { display: block; height: 100%; border-radius: 4px; background: var(--series-1); transition: width 0.3s; }
.meter > i.over { background: var(--critical); }
.meter > i.warn { background: var(--warning); }

/* 圖例 */
.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12px; color: var(--text-secondary); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }

/* 圖表 */
.chart { width: 100%; height: auto; display: block; overflow: visible; }
.ring-svg { display: block; flex: none; }
.chart text { font-size: 11px; fill: var(--text-muted); font-family: inherit; }
.chart .gridline { stroke: var(--grid); stroke-width: 1; }
.chart .baseline { stroke: var(--axis); stroke-width: 1; }
.chart .hit { fill: transparent; cursor: pointer; }

.tooltip {
  position: fixed;
  pointer-events: none;
  z-index: 60;
  background: var(--raised);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 7px 11px;
  font-size: 12.5px;
  box-shadow: var(--shadow);
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.1s;
  line-height: 1.5;
}
.tooltip.show { opacity: 1; }
.tooltip b { font-variant-numeric: tabular-nums; }

/* 環形 */
.ring-wrap { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.ring-center { text-align: center; }
.ring-center .big { font-size: 28px; font-weight: 700; letter-spacing: -0.02em; }
.ring-center .cap { font-size: 12px; color: var(--text-muted); }

/* 對話框 */
dialog {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-1);
  color: var(--text-primary);
  padding: 0;
  width: min(460px, calc(100vw - 32px));
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
}
dialog::backdrop { background: rgba(0, 0, 0, 0.45); }
dialog .dlg-head { padding: 18px 20px 0; font-weight: 650; font-size: 17px; }
dialog .dlg-body { padding: 16px 20px; display: grid; gap: 12px; }
dialog .dlg-foot { padding: 0 20px 18px; display: flex; gap: 8px; justify-content: flex-end; }

/* Toast */
#toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 20px);
  background: var(--text-primary);
  color: var(--page);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 550;
  opacity: 0;
  pointer-events: none;
  transition: all 0.2s;
  z-index: 100;
  box-shadow: var(--shadow);
}
#toast.show { opacity: 1; transform: translate(-50%, 0); }

/* 每日小計表 */
.daily-table tbody tr { cursor: pointer; }
.daily-table tbody tr.is-weekend td { background: color-mix(in srgb, var(--text-primary) 3%, transparent); }
.daily-table tbody tr.is-today td { background: color-mix(in srgb, var(--series-1) 10%, transparent); font-weight: 600; }
.daily-table tbody tr.is-today td:first-child { box-shadow: inset 3px 0 0 var(--series-1); }
.daily-table .dow-cell { color: var(--text-muted); font-size: 12px; }
.daily-table .zero { color: var(--text-muted); }
.daily-table tfoot td {
  border-top: 2px solid var(--axis);
  border-bottom: 0;
  background: color-mix(in srgb, var(--text-primary) 3%, transparent);
}
.minibar { display: block; height: 6px; border-radius: 3px; background: var(--grid); overflow: hidden; min-width: 40px; }
.minibar > i { display: block; height: 100%; border-radius: 3px; background: var(--series-1); }

/* 條列 */
.list { display: flex; flex-direction: column; }
.list .item {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 9px 0;
  border-bottom: 1px solid var(--grid);
}
.list .item:last-child { border-bottom: 0; }
.list .item .ico { font-size: 17px; width: 26px; text-align: center; flex: none; }
.list .item .body { flex: 1; min-width: 0; }
.list .item .t { font-weight: 550; font-size: 14px; }
.list .item .s { font-size: 12px; color: var(--text-muted); }
.list .item .amt { font-weight: 650; font-variant-numeric: tabular-nums; white-space: nowrap; }

/* 分類條 */
.catbar { display: flex; flex-direction: column; gap: 11px; }
.catbar .r { display: grid; grid-template-columns: 1fr auto; gap: 3px 10px; align-items: baseline; }
.catbar .n { font-size: 13px; font-weight: 550; }
.catbar .v { font-size: 13px; font-weight: 650; font-variant-numeric: tabular-nums; white-space: nowrap; }
.catbar .v .pct { font-weight: 500; color: var(--text-muted); font-size: 12px; margin-left: 2px; }
.catbar .track { grid-column: 1 / -1; height: 7px; border-radius: 4px; background: var(--grid); overflow: hidden; }
.catbar .track > i { display: block; height: 100%; border-radius: 4px; }

/* ── 手機 ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  .cols-4 { grid-template-columns: repeat(2, 1fr); }
  .cols-3, .cols-2 { grid-template-columns: 1fr; }
  .span-2 { grid-column: span 1; }
}

@media (max-width: 720px) {
  #app { flex-direction: column; }
  nav.side {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    top: auto;
    width: 100%;
    height: auto;
    flex-direction: row;
    justify-content: space-around;
    border-right: 0;
    border-top: 1px solid var(--border);
    padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
    z-index: 50;
    overflow-x: auto;
  }
  nav.side .brand, nav.side .spacer, nav.side .lbl { display: none; }
  nav.side button { flex-direction: column; gap: 2px; font-size: 10px; padding: 6px 8px; }
  nav.side button .em { font-size: 19px; }
  nav.side button .cap { display: block; font-size: 10px; }
  main { padding: 16px 14px 96px; }
  .cols-4 { grid-template-columns: repeat(2, 1fr); }
  header.top h1 { font-size: 19px; }
  .tile .value { font-size: 22px; }
}

@media (min-width: 721px) {
  nav.side button .cap { display: none; }
}