:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --border: #e2e5ea;
  --text: #1f2430;
  --text-muted: #6b7280;
  --primary: #2f6fed;
  --primary-hover: #2557c0;
  --danger: #e0453f;
  --danger-hover: #c23a35;
  --radius: 10px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

h1, h2 { margin: 0 0 12px; }
.muted { color: var(--text-muted); }
.error {
  color: var(--danger);
  background: #fdecec;
  border: 1px solid #f6c8c6;
  padding: 8px 12px;
  border-radius: 8px;
  margin-top: 10px;
  font-size: 0.9rem;
}

/* ---------- Login ---------- */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-screen[hidden] { display: none; }

.login-box {
  background: var(--surface);
  padding: 32px;
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.login-box input {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
}
.login-box button {
  background: var(--primary);
  color: white;
  border: none;
  padding: 10px;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
}
.login-box button:hover { background: var(--primary-hover); }

/* ---------- App shell ---------- */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar h1 { font-size: 1.15rem; white-space: nowrap; }
.tabs { display: flex; gap: 6px; flex: 1; }
.tab-btn {
  background: none;
  border: none;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.95rem;
  cursor: pointer;
  color: var(--text-muted);
}
.tab-btn:hover { background: var(--bg); }
.tab-btn.active { background: var(--primary); color: white; }
.link-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.9rem;
  text-decoration: underline;
}

.context-bar {
  background: #eef2ff;
  border-bottom: 1px solid var(--border);
  padding: 8px 24px;
  font-size: 0.9rem;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}
.context-hint { font-size: 0.8rem; }

main { max-width: 960px; margin: 0 auto; padding: 24px; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}
.card-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- Forms ---------- */
.form-row { margin-bottom: 10px; }
select, input[type="text"], input[type="number"], input[type="datetime-local"], input[type="date"], input[type="password"] {
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  background: white;
  color: var(--text);
}
.entry-form {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 14px;
}

button.primary, button.danger, .secondary-btn {
  border: none;
  padding: 9px 16px;
  border-radius: 8px;
  font-size: 0.95rem;
  cursor: pointer;
}
button.primary { background: var(--primary); color: white; }
button.primary:hover { background: var(--primary-hover); }
button.danger { background: var(--danger); color: white; }
button.danger:hover { background: var(--danger-hover); }
.secondary-btn {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  text-decoration: none;
  display: inline-block;
}
#refreshEntriesBtn {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 14px;
  cursor: pointer;
}
.checkbox-label { font-size: 0.9rem; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }

/* ---------- Timer ---------- */
.timer-card { text-align: center; }
.elapsed {
  font-size: 3rem;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  margin: 20px 0;
}

/* ---------- Table ---------- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
}
.data-table th, .data-table td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.data-table th { color: var(--text-muted); font-weight: 600; }
.data-table td.actions { display: flex; gap: 8px; }
.data-table button {
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  font-size: 0.85rem;
  text-decoration: underline;
  padding: 0;
}
.data-table button.remove { color: var(--danger); }

/* ---------- Report summary ---------- */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
  margin: 16px 0;
}
.summary-tile {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
}
.summary-tile .value { font-size: 1.3rem; font-weight: 600; }
.summary-tile .label { font-size: 0.8rem; color: var(--text-muted); }

/* ---------- Modal (barcode scanner) ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(20, 24, 28, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 50;
}
.modal-backdrop[hidden] { display: none; }
.modal {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: 0 10px 40px rgba(0,0,0,0.25);
  width: 100%;
  max-width: 480px;
}
.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.modal-body { padding: 16px 18px; }
.icon-btn {
  background: none;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  color: var(--text-muted);
  line-height: 1;
}

/* ---------- Material photo thumbnail ---------- */
.material-thumb {
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--border);
  display: block;
}
.material-thumb-placeholder {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  border: 1px dashed var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.75rem;
}

@media (max-width: 700px) {
  .topbar { flex-wrap: wrap; }
  .tabs { order: 3; width: 100%; overflow-x: auto; }
}