/* LogMaster — mobile-first, light/dark ด้วย token ชุดเดียว */
:root {
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --card: #ffffff;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --line: #e1e0d9;
  --accent: #2a78d6;
  --accent-ink: #ffffff;
  --series-1: #2a78d6;
  --good: #0ca30c;
  --warning: #fab219;
  --critical: #d03b3b;
  --unknown: #898781;
  --radius: 12px;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.06), 0 2px 8px rgb(0 0 0 / 0.04);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --page: #0d0d0d;
    --surface: #1a1a19;
    --card: #1a1a19;
    --ink: #ffffff;
    --ink-2: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --axis: #383835;
    --line: #2c2c2a;
    --accent: #3987e5;
    --series-1: #3987e5;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--page);
  color: var(--ink);
  font: 16px/1.5 "Sarabun", "Noto Sans Thai", system-ui, sans-serif;
  -webkit-tap-highlight-color: transparent;
}
header.top {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 8px;
  padding: 10px 16px;
  background: var(--card); border-bottom: 1px solid var(--line);
}
header.top h1 { font-size: 18px; margin: 0; flex: 1; }
header.top a { color: var(--ink); text-decoration: none; }
.sync { font-size: 13px; color: var(--ink-2); display: flex; align-items: center; gap: 4px; }
.sync .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.sync.ok .dot { background: var(--good); }
.sync.pending .dot { background: var(--warning); }

main { padding: 16px; max-width: 760px; margin: 0 auto; padding-bottom: 96px; }
h2 { font-size: 20px; margin: 4px 0 12px; }
h3 { font-size: 16px; margin: 16px 0 8px; color: var(--ink-2); }
p.hint { color: var(--ink-2); font-size: 14px; margin: 4px 0 12px; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 14px; margin-bottom: 12px;
}
a.card { display: block; color: inherit; text-decoration: none; }
.row { display: flex; gap: 8px; align-items: center; }
.row.between { justify-content: space-between; }
.grow { flex: 1; min-width: 0; }
.muted { color: var(--muted); font-size: 13px; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; font-size: 15px; }
.kv dt { color: var(--ink-2); }
.kv dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 44px; padding: 0 16px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--card); color: var(--ink);
  font: inherit; font-weight: 600; cursor: pointer; text-decoration: none;
}
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.danger { color: var(--critical); }
.btn.block { width: 100%; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btns { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }
.btns .btn { flex: 1 1 140px; }
.fab {
  position: fixed; right: 16px; bottom: 20px; z-index: 20;
  border-radius: 28px; min-height: 56px; padding: 0 22px; box-shadow: 0 4px 14px rgb(0 0 0 / 0.2);
}

label.field { display: block; margin-bottom: 12px; font-size: 14px; color: var(--ink-2); }
label.field input, label.field select, label.field textarea {
  display: block; width: 100%; margin-top: 4px; min-height: 44px; padding: 8px 12px;
  border: 1px solid var(--axis); border-radius: 10px; background: var(--surface); color: var(--ink);
  font: inherit; font-size: 16px; /* 16px กัน iOS zoom */
}

/* สถานะ: สี + ไอคอน + ข้อความ (ไม่ใช้สีอย่างเดียว) */
.badge {
  display: inline-flex; align-items: center; gap: 4px; white-space: nowrap;
  font-size: 13px; font-weight: 600; padding: 2px 10px; border-radius: 999px;
  border: 1.5px solid currentColor;
}
.badge.green { color: var(--good); }
.badge.yellow { color: #a86f00; }
.badge.red { color: var(--critical); }
.badge.grey { color: var(--unknown); }
@media (prefers-color-scheme: dark) { .badge.yellow { color: var(--warning); } }

.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-bottom: 12px; }
@media (min-width: 560px) { .stats { grid-template-columns: repeat(4, 1fr); } }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; }
.stat .v { font-size: 24px; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat .l { font-size: 13px; color: var(--ink-2); }

table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data th, table.data td { padding: 8px 6px; border-bottom: 1px solid var(--line); text-align: left; }
table.data td.num, table.data th.num { text-align: right; font-variant-numeric: tabular-nums; }
.table-wrap { overflow-x: auto; }

/* กล้อง + การวัด */
.camera { position: relative; background: #000; border-radius: var(--radius); overflow: hidden; }
.camera video { display: block; width: 100%; max-height: 70vh; object-fit: contain; }
.measure-wrap { position: relative; touch-action: none; user-select: none; }
.measure-wrap canvas { display: block; width: 100%; border-radius: var(--radius); background: #000; }
.loupe {
  position: absolute; width: 120px; height: 120px; border-radius: 50%;
  border: 3px solid #fff; box-shadow: 0 2px 10px rgb(0 0 0 / 0.5); pointer-events: none; display: none;
}
.steps { display: flex; gap: 6px; margin-bottom: 12px; }
.steps span { flex: 1; height: 4px; border-radius: 2px; background: var(--line); }
.steps span.on { background: var(--accent); }
.segmented { display: flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; margin-bottom: 12px; }
.segmented button {
  flex: 1; min-height: 44px; border: 0; background: var(--card); color: var(--ink); font: inherit; font-size: 14px;
}
.segmented button.on { background: var(--accent); color: var(--accent-ink); font-weight: 600; }
.legend-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 4px; vertical-align: middle; }

.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.compare figure { margin: 0; }
.compare img { width: 100%; border-radius: 8px; display: block; background: var(--line); aspect-ratio: 4/3; object-fit: cover; }
.compare figcaption { font-size: 13px; color: var(--ink-2); margin-top: 4px; }

/* กราฟ */
.chart { position: relative; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart .tip {
  position: absolute; pointer-events: none; background: var(--card); color: var(--ink);
  border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; font-size: 13px;
  box-shadow: var(--shadow); white-space: nowrap; display: none; transform: translate(-50%, -110%);
}

.toast {
  position: fixed; left: 50%; bottom: 90px; transform: translateX(-50%); z-index: 50;
  background: var(--ink); color: var(--page); padding: 10px 16px; border-radius: 10px; font-size: 14px;
  max-width: calc(100% - 32px);
}
.empty { text-align: center; color: var(--ink-2); padding: 40px 16px; }

/* หน้าพิมพ์ QR */
.qr-sheet { text-align: center; padding: 24px; }
.qr-sheet #qr { display: inline-block; padding: 16px; background: #fff; }
.qr-sheet .code { font-size: 32px; font-weight: 700; margin-top: 8px; }
@media print {
  header.top, .no-print, .fab { display: none !important; }
  body { background: #fff; color: #000; }
}