:root {
  --bg: #0b1220;
  --panel: #121b2e;
  --panel-2: #172238;
  --border: #22304a;
  --text: #e6ebf5;
  --muted: #8593ac;
  --accent: #ffb020;
  --good: #34d399;
  --bad: #f87171;
  --header-bg: rgba(18,27,46,0.7);
  --mono: 'JetBrains Mono', 'Courier New', monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Light mode — every color re-checked for contrast against its typical
   background (body text on --bg, panel text on --panel, muted labels on
   --panel-2) rather than just inverting the dark values, since a naive
   invert tends to produce washed-out or illegible text on white. */
html[data-theme="light"] {
  --bg: #f4f6fb;
  --panel: #ffffff;
  --panel-2: #eef1f7;
  --border: #d7dce6;
  --text: #10182b;       /* near-black, not the muted-gray many light themes default to */
  --muted: #4b5568;      /* darkened from a typical light-gray so labels stay readable on white */
  --accent: #b3690a;     /* darkened from the dark-mode gold — the bright version fails contrast on white */
  --good: #0f8f66;       /* darkened green — the dark-mode mint is too light on white */
  --bad: #d92d3f;        /* darkened red for the same reason */
  --header-bg: rgba(255,255,255,0.85); /* was a dark navy hardcoded value that never changed with theme — that's the bug: near-black --text on a permanently-dark header made nav links nearly invisible in light mode */
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  background-image:
    radial-gradient(circle at 20% -10%, rgba(255,176,32,0.06), transparent 40%),
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: auto, 32px 32px, 32px 32px;
}

header.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--header-bg);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
  flex-shrink: 0;
}

.brand-text { line-height: 1.25; }

.brand-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.brand-phone {
  font-size: 11px;
  color: var(--muted);
}

header.top nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 22px;
  font-size: 14px;
  transition: color 0.15s;
}
header.top nav a:hover, header.top nav a.active { color: var(--text); }

.lang-toggle {
  margin-left: 22px;
  font-size: 12px;
  padding: 5px 10px;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: var(--sans);
  cursor: pointer;
}
.lang-toggle:hover { border-color: var(--accent); }
select.lang-toggle option { background: var(--panel); color: var(--text); }

/* RTL (Sorani Kurdish) — mirror nav spacing, keep numbers/tags LTR-readable */
html[dir="rtl"] header.top nav a { margin-left: 0; margin-right: 22px; }
html[dir="rtl"] .lang-toggle { margin-left: 0; margin-right: 22px; }
html[dir="rtl"] body { font-family: 'Segoe UI', Tahoma, var(--sans); }
html[dir="rtl"] .sn, html[dir="rtl"] .tag { direction: ltr; display: inline-block; }
html[dir="rtl"] table { direction: rtl; }
html[dir="rtl"] .btnrow { flex-direction: row-reverse; justify-content: flex-end; }

main { max-width: 1180px; margin: 0 auto; padding: 28px; }

.grid { display: grid; gap: 18px; }
.grid.cols-2 { grid-template-columns: 1fr 1fr; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; } }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
}

.panel h2 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.led { width: 8px; height: 8px; border-radius: 50%; display: inline-block; flex-shrink: 0; }
.led.on { background: var(--good); box-shadow: 0 0 8px var(--good); }
.led.off { background: var(--bad); box-shadow: 0 0 8px var(--bad); }

.device-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 10px;
}
.device-card .row { display: flex; align-items: center; justify-content: space-between; }
.device-card .sn { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.device-card .name { font-weight: 600; }
.device-card .status { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }

.btnrow { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
button, .btn {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  font-family: var(--sans);
  transition: border-color 0.15s, background 0.15s;
}
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); color: #1a1204; border-color: var(--accent); font-weight: 600; }
button.danger:hover { border-color: var(--bad); }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
#people { overflow-x: auto; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }

.person-thumb {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  object-fit: cover;
  display: block;
  border: 1px solid var(--border);
}
.person-thumb-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--panel-2);
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}
.modal-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  max-width: 420px;
  width: 100%;
}
.modal-box h2 { margin-top: 0; font-size: 15px; }

th { color: var(--muted); font-weight: 500; text-transform: uppercase; font-size: 11px; letter-spacing: 0.05em; }
tr:hover td { background: rgba(255,255,255,0.02); }

.tag { font-family: var(--mono); font-size: 11px; padding: 2px 6px; border-radius: 4px; background: var(--panel); border: 1px solid var(--border); color: var(--muted); white-space: nowrap; display: inline-block; }
.tag.entry { color: var(--good); border-color: var(--good); }
.tag.exit { color: var(--accent); border-color: var(--accent); }
.tag.warn { color: var(--bad); border-color: var(--bad); }

.cal-table { font-size: 11px; border-collapse: collapse; }
.cal-table th, .cal-table td { padding: 3px; text-align: center; border: 1px solid var(--border); }
.cal-table th.cal-name-col, .cal-table td.cal-name-col { text-align: left; padding: 6px 8px; white-space: nowrap; position: sticky; left: 0; background: var(--panel); }
.cal-cell { width: 26px; height: 26px; border-radius: 4px; font-weight: 600; cursor: default; }
.cal-present { background: rgba(52,211,153,0.18); color: var(--good); }
.cal-late { background: rgba(248,113,113,0.18); color: var(--bad); }
.cal-absent { background: rgba(248,113,113,0.35); color: var(--bad); }
.cal-holiday { background: rgba(255,176,32,0.18); color: var(--accent); }
.cal-day_off { background: var(--panel-2); color: var(--muted); }
.cal-leave { background: rgba(147,197,253,0.25); color: #60a5fa; }
.cal-business { background: rgba(196,181,253,0.25); color: #a78bfa; }
.cal-future { background: transparent; color: var(--muted); }
.cal-legend { display:flex; gap:14px; flex-wrap:wrap; margin-bottom:12px; font-size:12px; }
.cal-legend span { display:inline-flex; align-items:center; gap:5px; }
.cal-legend i { display:inline-block; width:12px; height:12px; border-radius:3px; }

form.enroll-form { display: flex; flex-direction: column; gap: 14px; max-width: 480px; }
form.enroll-form label { font-size: 12px; color: var(--muted); display: block; margin-bottom: 6px; }
form.enroll-form input[type=text], form.enroll-form input[type=number], form.enroll-form select {
  width: 100%; background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 9px 10px; border-radius: 6px; font-family: var(--sans); font-size: 14px;
}
form.enroll-form input[type=file] { color: var(--muted); font-size: 13px; }
.checkbox-list { display: flex; flex-direction: column; gap: 6px; max-height: 160px; overflow-y: auto; border: 1px solid var(--border); padding: 10px; border-radius: 6px; background: var(--panel-2); }
.checkbox-list label { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text); margin: 0; }

.empty { color: var(--muted); font-size: 13px; padding: 20px 0; text-align: center; }
.small { font-size: 12px; color: var(--muted); }

form.enroll-form input[type=date] {
  width: 100%; background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 9px 10px; border-radius: 6px; font-family: var(--sans); font-size: 14px;
}

.photo-source-toggle { display: flex; gap: 8px; margin-bottom: 10px; }
.source-btn { flex: 1; padding: 9px 10px; }
.source-btn.active { background: var(--accent); color: #1a1204; border-color: var(--accent); font-weight: 600; }

#webcamVideo {
  width: 100%; max-width: 320px; border-radius: 8px; border: 1px solid var(--border);
  background: #000; display: block; margin-bottom: 10px;
}

#photoPreviewWrap { margin-top: 12px; }
#photoPreviewCanvas {
  width: 180px; height: 240px; border-radius: 8px; border: 1px solid var(--border);
  background: #fff; display: block; margin-top: 6px;
}

.crop-mode-toggle { display: flex; flex-direction: column; gap: 6px; margin-top: 10px; }
.crop-mode-toggle label { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text); margin: 0; font-weight: normal; }

/* ---- Mobile responsive ---- */
@media (max-width: 720px) {
  header.top { padding: 14px 16px; flex-wrap: wrap; gap: 8px; }
  header.top nav a { margin-left: 0; margin-right: 16px; }
  main { padding: 16px; }
  .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; gap: 14px; }
  form.enroll-form { max-width: 100%; }
  .device-card .btnrow button { flex: 1 1 calc(33% - 6px); }
  table { font-size: 12px; }
  th, td { padding: 6px 6px; }
  #webcamVideo, #photoPreviewCanvas { max-width: 100%; width: 100%; height: auto; }
  #photoPreviewCanvas { aspect-ratio: 480 / 640; }
}

.site-footer {
  display: flex;
  align-items: center;
  gap: 14px;
  justify-content: center;
  padding: 28px 20px;
  margin-top: 32px;
  border-top: 1px solid var(--border);
  opacity: 0.75;
}

.site-footer-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
}

.site-footer-text {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
}

@media (max-width: 480px) {
  .site-footer { flex-direction: column; text-align: center; gap: 8px; }
}