:root {
  --bg: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --accent: #2563eb;
  --danger: #dc2626;
  --grid: #e5e7eb;
  --row-alt: #f9fafb;
  --card-bg: #ffffff;
}

* { box-sizing: border-box; }
body {
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, 'Helvetica Neue', Arial, 'Noto Sans', 'Apple Color Emoji', 'Segoe UI Emoji';
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.2;
}

.topbar { display:flex; justify-content: space-between; align-items:center; padding: 8px 12px; background: #f8fafc; border-bottom: 1px solid var(--grid); position: sticky; top:0; z-index:10; }
.topbar h1 { margin:0; font-size: 15px; font-weight: 600; }
.topbar h1 .brand { color: inherit; text-decoration: none; }
.topbar h1 .brand:hover { text-decoration: underline; }
.topbar nav { display:flex; align-items:center; gap:8px; flex-wrap: nowrap; white-space: nowrap; overflow-x: auto; }
.topbar nav > * { display:inline-flex; align-items:center; flex: 0 0 auto; }
.topbar nav form { margin:0; }
.topbar nav details.nav summary { display:inline-flex; align-items:center; }
.topbar .nav { color: #374151; text-decoration: none; margin-left: 0; padding: 6px 10px; border-radius: 6px; }
.topbar details.nav { display:inline-block; margin-left:8px; }
.topbar details.nav summary { list-style:none; cursor:pointer; }
.topbar details.nav summary::-webkit-details-marker { display:none; }
.topbar details.nav .popover { background: var(--bg); border:1px solid var(--grid); padding:8px; border-radius:6px; box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.topbar .nav:hover { background: #eef2ff; color: #1f2937; }

.container { max-width: 1200px; margin: 8px auto; padding: 0 8px; }

.toolbar { display:flex; align-items:center; justify-content: space-between; margin-bottom: 6px; gap: 6px; }
.toolbar .title { font-weight:600; color: #374151; font-size: 14px; }

.card { background: transparent; border: none; padding: 0; margin-bottom: 6px; }

.grid { display:grid; gap: 6px; }
.g-2 { grid-template-columns: repeat(2, 1fr); }
.g-3 { grid-template-columns: repeat(3, 1fr); }
.g-4 { grid-template-columns: repeat(4, 1fr); }
.g-6 { grid-template-columns: repeat(6, 1fr); }

label { display:block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
input, select { width: 100%; padding: 6px 8px; color: var(--text); background: #ffffff; border: 1px solid var(--grid); border-radius: 6px; font-size: 14px; min-height: 32px; }
input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
input[type=time] { padding-right: 2px; width: 100px; height: 32px; }
input[type=date] { height: 32px; }
input[type=number] { width: 110px; text-align: right; height: 32px; }
input[type=text] { height: 32px; }
input:disabled { opacity: 0.7; }

.btn { display:inline-block; padding: 8px 10px; border-radius: 6px; border: 1px solid var(--grid); color: #111827; text-decoration: none; background: #f8fafc; cursor: pointer; font-size: 14px; min-height: 32px; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: white; }
.btn.danger { background: #fee2e2; border-color: #fecaca; color: #7f1d1d; }
.btn.danger:hover { border-color: var(--danger); color: #991b1b; }

.tbl { width: 100%; border-collapse: collapse; table-layout: fixed; border: 1px solid var(--grid); }
.tbl th, .tbl td { padding: 4px 6px; border: 1px solid var(--grid); text-align: left; vertical-align: middle; }
.tbl td { font-size: 12px; }
.tbl thead th { color: #111827; font-weight: 600; font-size: 13px; background: #f3f4f6; }
.tbl tbody tr:nth-child(even) { background: var(--row-alt); }
.align-right { text-align: right; }
.align-end { display:flex; align-items:end; justify-content: end; }
.nowrap { white-space: nowrap; }

.muted { color: var(--muted); }
.small { font-size: 12px; }
.big { font-size: 18px; font-weight: 700; }
.mt { margin-top: 8px; }

.checkbox { display:flex; align-items:center; gap: 6px; }
.notice { padding: 6px 8px; border-radius: 4px; margin-bottom: 8px; border: 1px solid var(--grid); }
.notice.error { background: #fef2f2; border-color: #fecaca; color: #7f1d1d; }
.notice.success { background: #ecfdf5; border-color: #a7f3d0; color: #065f46; }

/* Dark theme overrides */
body[data-theme="dark"] {
  --bg: #0b1220;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #60a5fa;
  --danger: #ef4444;
  --grid: #1f2937;
  --row-alt: #0f172a;
  --card-bg: #0f172a;
}
body[data-theme="dark"] .topbar { background: #0f172a; border-bottom-color: var(--grid); }
body[data-theme="dark"] .topbar .nav { color: #e5e7eb; }
body[data-theme="dark"] .topbar .nav:hover { background: #1f2937; color: #ffffff; }
body[data-theme="dark"] input, body[data-theme="dark"] select { background: #0b1220; color: var(--text); border-color: var(--grid); }
body[data-theme="dark"] .btn { color: var(--text); background: #111827; border-color: var(--grid); }
body[data-theme="dark"] .btn.primary { background: var(--accent); border-color: var(--accent); color: #0b1220; }
body[data-theme="dark"] .tbl { border-color: var(--grid); }
body[data-theme="dark"] .tbl th, body[data-theme="dark"] .tbl td { border-color: var(--grid); }
body[data-theme="dark"] .tbl thead th { color: var(--text); background: #0f172a; }
body[data-theme="dark"] .tbl tbody tr:nth-child(even) { background: #0b1220; }
body[data-theme="dark"] .toolbar .title { color: var(--text); }
body[data-theme="dark"] .notice.error { background: #2b1212; border-color: #7f1d1d; color: #fecaca; }
body[data-theme="dark"] .notice.success { background: #0f2f26; border-color: #065f46; color: #a7f3d0; }

/* Auth (PIN) layout */
.auth-wrap { display:flex; align-items:center; justify-content:center; min-height: 70vh; }
.auth-card { width: 360px; max-width: 92vw; background: var(--card-bg); border: 1px solid var(--grid); border-radius: 8px; padding: 16px 18px; box-shadow: 0 1px 2px rgba(0,0,0,0.04); }
.auth-title { margin: 0 0 10px 0; font-size: 16px; font-weight: 700; text-align: center; }
.auth-card .grid { gap: 10px; }
.auth-card label { font-size: 12px; }
.auth-card input[type=password] { height: 34px; font-size: 14px; padding: 6px 10px; }
.auth-card .btn { padding: 8px 10px; font-size: 13px; width: 100%; }
.auth-hint { text-align: center; margin-top: 8px; }
/* Focus */
*:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Touch targets on touch devices */
@media (pointer: coarse) {
  input, select, .btn { min-height: 44px; font-size: 16px; }
  .topbar .nav { padding: 10px 14px; }
}