:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --text: #1c2330;
  --muted: #5b6474;
  --border: #dde2ea;
  --accent: #2459d6;
  --accent-hover: #1c48b3;
  --accent-text: #ffffff;
  --focus: #7aa2ff;
  --pass: #14773a;
  --pass-bg: #e5f5ea;
  --reject: #b42318;
  --reject-bg: #fdeceb;
  --relative: #94600a;
  --relative-bg: #fdf3d8;
  --manual: #2453b3;
  --manual-bg: #e7eefc;
  --pending: #5f6773;
  --pending-bg: #eceff3;
  --warn: #94600a;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(20, 30, 50, 0.06), 0 1px 8px rgba(20, 30, 50, 0.04);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --panel: #1a1f26;
    --text: #e5e8ee;
    --muted: #9aa3b2;
    --border: #2d343f;
    --accent: #5b8cff;
    --accent-hover: #7aa2ff;
    --accent-text: #0d1220;
    --focus: #8fb0ff;
    --pass: #5ad38a;
    --pass-bg: #12301f;
    --reject: #ff8a80;
    --reject-bg: #3a1716;
    --relative: #f2c14e;
    --relative-bg: #3a2d0e;
    --manual: #9db8ff;
    --manual-bg: #1b2845;
    --pending: #a3abb8;
    --pending-bg: #252b33;
    --warn: #f2c14e;
    --shadow: none;
    color-scheme: dark;
  }
}

[hidden] { display: none !important; }

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.6 "Segoe UI", "Microsoft JhengHei", "PingFang TC", "Noto Sans TC", system-ui, sans-serif;
}

h1, h2, h3 { margin: 0; line-height: 1.3; }
h1 { font-size: 20px; }
h2 { font-size: 17px; display: flex; align-items: center; gap: 10px; }
h3 { font-size: 15px; margin: 18px 0 8px; }
p { margin: 6px 0; }

button {
  font: inherit;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-text);
  border-radius: 8px;
  padding: 7px 16px;
  cursor: pointer;
}
button:hover:not(:disabled) { background: var(--accent-hover); border-color: var(--accent-hover); }
button:disabled { opacity: 0.45; cursor: not-allowed; }
button.ghost { background: transparent; color: var(--accent); }
button.ghost:hover:not(:disabled) { background: var(--manual-bg); }
button.danger { color: var(--reject); border-color: var(--reject); }
button.danger:hover:not(:disabled) { background: var(--reject-bg); }
button.small { padding: 3px 10px; font-size: 13px; }
button.large { padding: 10px 28px; font-size: 16px; font-weight: 600; }

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

input, select {
  font: inherit;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  min-height: 36px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 14px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.subtitle { margin: 2px 0 0; color: var(--muted); font-size: 13px; }
.topbar-right { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
/* 示範頁與大量上傳頁之間的連結 */
.nav-link { font-size: 13px; color: var(--accent); text-decoration: none; border: 1px solid var(--accent); border-radius: 8px; padding: 3px 10px; }
.nav-link:hover { background: var(--manual-bg); }

.status { font-size: 13px; color: var(--muted); display: inline-flex; align-items: center; gap: 6px; }
.status::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: var(--pending); }
.status.ok::before { background: var(--pass); }
.status.error { color: var(--reject); }
.status.error::before { background: var(--reject); }
.status.warn { color: var(--warn); }
.status.warn::before { background: var(--warn); }

.server-warning {
  border: 1px solid var(--warn);
  background: var(--relative-bg);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 14px;
}

main { max-width: 1180px; margin: 0 auto; padding: 20px 16px 48px; display: grid; gap: 16px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 20px;
}

.step {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 13px;
  font-weight: 700;
}

.hint { color: var(--muted); font-size: 13px; }
.error { color: var(--reject); }
.warn { color: var(--warn); font-size: 13px; }

.dropzone {
  margin-top: 12px;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 26px 16px;
  text-align: center;
  transition: border-color 0.15s, background 0.15s;
}
.dropzone.over { border-color: var(--accent); background: var(--manual-bg); }
.dropzone.locked { opacity: 0.55; pointer-events: none; }
.drop-title { font-size: 16px; font-weight: 600; }
.buttons { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin: 10px 0 4px; }

.selection-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 14px; }

.thumbs {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
  gap: 10px;
}
.thumb { position: relative; display: grid; gap: 4px; }
.thumb img, .thumb-skip {
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: top;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--pending-bg);
}
.thumb-skip { display: grid; place-items: center; color: var(--warn); font-size: 12px; padding: 6px; text-align: center; }
.thumb-name { font-size: 12px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.thumb-remove {
  position: absolute;
  top: 4px;
  right: 4px;
  padding: 0 7px;
  line-height: 22px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  border-color: transparent;
  color: #fff;
  font-size: 14px;
}

.fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px 16px; margin-top: 12px; }
.fields label { display: grid; gap: 4px; font-size: 14px; color: var(--muted); }

/* 登入（有設 API 金鑰時）：未登入只顯示登入區塊 */
body.signed-out main > .panel:not(#login) { display: none; }
.login-form { display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; margin-top: 12px; }
.login-form label { display: grid; gap: 4px; font-size: 14px; color: var(--muted); flex: 1 1 280px; }
.user-name { font-size: 13px; color: var(--muted); }


.actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 16px; }

.results-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.results-head .buttons { margin: 0; justify-content: flex-end; }

.progress { height: 8px; background: var(--pending-bg); border-radius: 99px; overflow: hidden; margin-top: 14px; }
.progress-bar { height: 100%; width: 0; background: var(--accent); transition: width 0.3s; }

.problems {
  margin-top: 12px;
  border: 1px solid var(--reject);
  background: var(--reject-bg);
  border-radius: 8px;
  padding: 10px 14px;
}
.problems ul { margin: 6px 0 0; padding-left: 20px; }

.filters { display: flex; gap: 8px; flex-wrap: wrap; margin: 14px 0 6px; }
.filter {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 4px 12px;
  font-size: 14px;
  display: inline-flex;
  gap: 8px;
  align-items: center;
}
.filter:hover:not(:disabled) { background: var(--pending-bg); border-color: var(--border); }
.filter.active { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.filter .count { font-weight: 700; }
.filter.pass .count { color: var(--pass); }
.filter.reject .count { color: var(--reject); }
.filter.relative_date .count { color: var(--relative); }
.filter.manual .count { color: var(--manual); }

.results { display: grid; gap: 10px; margin-top: 8px; }
.result {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 12px;
  border: 1px solid var(--border);
  border-left: 5px solid var(--pending);
  border-radius: 8px;
  cursor: pointer;
  background: var(--panel);
}
.result:hover { border-color: var(--accent); }
.result.pass { border-left-color: var(--pass); }
.result.reject { border-left-color: var(--reject); }
.result.relative_date { border-left-color: var(--relative); }
.result.manual { border-left-color: var(--manual); }
.result-thumb {
  width: 88px;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: top;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--pending-bg);
}
.row-title { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.file-name { font-weight: 600; word-break: break-all; }
.prob { color: var(--muted); font-size: 13px; }
.msg { font-size: 14px; }
.readings { font-size: 13px; color: var(--muted); }

.badge {
  display: inline-block;
  padding: 1px 10px;
  border-radius: 99px;
  font-size: 13px;
  font-weight: 700;
  background: var(--pending-bg);
  color: var(--pending);
}
.badge.pass { background: var(--pass-bg); color: var(--pass); }
.badge.reject { background: var(--reject-bg); color: var(--reject); }
.badge.relative_date { background: var(--relative-bg); color: var(--relative); }
.badge.manual { background: var(--manual-bg); color: var(--manual); }
.badge.pending::before { content: "◌ "; }

.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 3px; font-size: 12.5px; min-width: 128px; }
.check { display: flex; gap: 6px; align-items: center; color: var(--muted); }
.check-mark { display: inline-grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; font-size: 11px; font-weight: 700; }
.check.pass .check-mark { background: var(--pass-bg); color: var(--pass); }
.check.fail .check-mark { background: var(--reject-bg); color: var(--reject); }
.check.unknown .check-mark { background: var(--relative-bg); color: var(--relative); }

.detail {
  width: min(980px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  background: var(--panel);
  color: var(--text);
}
.detail::backdrop { background: rgba(10, 14, 22, 0.55); }
.detail-close { position: sticky; top: 0; display: flex; justify-content: flex-end; padding: 10px 12px 0; background: var(--panel); }
.detail-body { display: grid; grid-template-columns: minmax(0, 340px) minmax(0, 1fr); gap: 20px; padding: 6px 20px 20px; }
.detail-img { width: 100%; border-radius: 8px; border: 1px solid var(--border); background: var(--pending-bg); }
.kv { width: 100%; border-collapse: collapse; font-size: 14px; }
.kv th { text-align: left; color: var(--muted); font-weight: 500; padding: 5px 12px 5px 0; vertical-align: top; white-space: nowrap; width: 1%; }
.kv td { padding: 5px 0; border-bottom: 1px solid var(--border); white-space: pre-wrap; word-break: break-word; }
.checks.large { font-size: 14px; gap: 6px; }

@media (max-width: 720px) {
  .topbar { padding: 12px 16px; flex-direction: column; align-items: flex-start; }
  .result { grid-template-columns: 64px minmax(0, 1fr); }
  .result-thumb { width: 64px; }
  .result .checks { grid-column: 1 / -1; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .detail-body { grid-template-columns: 1fr; }
  .results-head .buttons { justify-content: flex-start; }
}