:root {
  --bg: oklch(0.98 0.004 260);
  --surface: white;
  --surface-muted: oklch(0.96 0.004 260);
  --border: oklch(0.88 0.008 260);
  --text: oklch(0.2 0.02 260);
  --text-dim: oklch(0.5 0.015 260);
  --accent: oklch(0.55 0.19 275);
  --accent-hover: oklch(0.46 0.2 275);
  --accent-tint: oklch(0.95 0.03 275);
  --accent-tint-text: oklch(0.4 0.12 275);

  --available-bg: oklch(0.94 0.05 145);
  --available-text: oklch(0.42 0.12 145);
  --available-dot: oklch(0.68 0.17 145);

  --loaned-bg: oklch(0.94 0.06 25);
  --loaned-text: oklch(0.5 0.17 25);
  --loaned-dot: oklch(0.62 0.21 25);

  --maintenance-bg: oklch(0.92 0.006 260);
  --maintenance-text: oklch(0.45 0.01 260);
  --maintenance-dot: oklch(0.55 0.01 260);

  --remark-bg: oklch(0.94 0.05 70);
  --remark-text: oklch(0.4 0.1 65);
  --remark-dot: oklch(0.68 0.17 70);

  --error: oklch(0.55 0.19 25);

  --radius-card: 20px;
  --radius-modal: 22px;
  --shadow: 0 8px 30px rgba(0,0,0,0.08);
  --shadow-sm: 0 4px 16px rgba(0,0,0,0.06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0; font-weight: 800; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
input:focus, select:focus { outline: none; border-color: var(--accent) !important; }
button:focus-visible, a:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.app-shell {
  max-width: 460px;
  margin: 0 auto;
  min-height: 100vh;
  background: var(--surface);
  box-shadow: 0 0 40px rgba(0,0,0,0.06);
}

/* ---------------- Header ---------------- */
.page-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
}

.topbar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-mark {
  width: 38px; height: 38px;
  border-radius: 12px;
  background: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; color: white; font-size: 14px;
  flex-shrink: 0;
}

.brand-title { font-size: 16px; font-weight: 800; }
.brand-sub { font-size: 11.5px; color: var(--text-dim); }

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.icon-btn {
  border: 1px solid var(--border);
  background: transparent;
  border-radius: 999px;
  width: 34px; height: 34px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  color: var(--text);
}

.status-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: var(--accent-tint);
  color: var(--accent-tint-text);
  font-size: 12.5px;
}
.status-bar .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.status-bar strong { color: var(--accent-tint-text); }

/* ---------------- Layout ---------------- */
.container { padding: 16px 18px 60px; }
.admin-container { max-width: 1180px; margin: 0 auto; padding-bottom: 60px; }

@media (max-width: 480px) {
  .container { padding: 14px 14px 60px; }
  .topbar { padding: 12px 14px; }
  .status-bar { padding: 7px 14px; }
}

/* ---------------- Summary chips ---------------- */
.summary-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 8px;
}
.summary-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  border-radius: 12px;
  padding: 10px 12px;
}
.summary-chip .dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.summary-chip .num { font-size: 16px; font-weight: 800; line-height: 1.1; }
.summary-chip .label { font-size: 9.5px; text-transform: uppercase; letter-spacing: 0.03em; margin-top: 1px; }
.summary-chip.available { background: var(--available-bg); }
.summary-chip.available .dot { background: var(--available-dot); }
.summary-chip.available .label { color: var(--available-text); opacity: 0.85; }
.summary-chip.loaned { background: var(--loaned-bg); }
.summary-chip.loaned .dot { background: var(--loaned-dot); }
.summary-chip.loaned .label { color: var(--loaned-text); opacity: 0.85; }
.summary-chip.maintenance { background: var(--maintenance-bg); }
.summary-chip.maintenance .dot { background: var(--maintenance-dot); }
.summary-chip.maintenance .label { color: var(--maintenance-text); opacity: 0.85; }

.hint-line { font-size: 11px; color: var(--text-dim); margin-bottom: 18px; }

/* ---------------- Allocation board / tiles ---------------- */
.allocation-section { margin-bottom: 22px; }
.allocation-header {
  font-size: 12.5px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-dim);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.allocation-header .badge-count {
  background: var(--surface-muted);
  color: var(--text-dim);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 700;
}

.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(84px, 1fr));
  gap: 10px;
}

.car-tile {
  position: relative;
  aspect-ratio: 1;
  border: none;
  border-radius: var(--radius-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-family: inherit;
  color: var(--text);
  padding: 6px;
  text-align: center;
}
.car-tile.available { background: var(--available-bg); }
.car-tile.loaned { background: var(--loaned-bg); }
.car-tile.maintenance { background: var(--maintenance-bg); }
.car-tile:active { transform: scale(0.97); }

.car-tile .tile-num { font-size: 20px; font-weight: 800; line-height: 1.1; }
.car-tile .tile-reg { font-size: 9.5px; opacity: 0.7; margin-top: 2px; }
.car-tile .remark-dot {
  position: absolute;
  top: 8px; right: 8px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--remark-dot);
  box-shadow: 0 0 0 2px white;
}

.empty-state { text-align: center; padding: 40px 20px; color: var(--text-dim); }

/* ---------------- Status badge (tables/sheets) ---------------- */
.status-badge {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.status-badge.available { background: var(--available-bg); color: var(--available-text); }
.status-badge.loaned { background: var(--loaned-bg); color: var(--loaned-text); }
.status-badge.maintenance { background: var(--maintenance-bg); color: var(--maintenance-text); }

/* ---------------- Buttons ---------------- */
.btn {
  border: none;
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.05s ease, opacity 0.15s ease, background 0.15s ease;
}
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { background: var(--loaned-text); color: white; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-block { width: 100%; }
.btn-sm { padding: 7px 12px; font-size: 12.5px; border-radius: 8px; }
.btn-pill { border-radius: 999px; }

/* ---------------- Modals (bottom sheets) ---------------- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(15,15,20,0.45);
  display: none;
  align-items: flex-end;
  justify-content: center;
  z-index: 100;
}
.modal-overlay.open { display: flex; }

.modal {
  background: var(--surface);
  border-radius: var(--radius-modal) var(--radius-modal) 0 0;
  width: 100%;
  max-width: 460px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 22px;
  position: relative;
  animation: slideUp 0.2s ease;
}
@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.modal.modal-center { border-radius: var(--radius-modal); }
@media (min-width: 640px) {
  .modal-overlay.center-on-desktop { align-items: center; }
}

.modal h2 { font-size: 18px; margin-bottom: 4px; }
.modal .sub { color: var(--text-dim); font-size: 13px; margin-bottom: 16px; }

.close-x {
  position: absolute;
  top: 14px; right: 16px;
  background: none; border: none;
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
}

/* ---------------- Forms ---------------- */
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12px; color: var(--text-dim); margin-bottom: 6px; font-weight: 600; }
.field input, .field select {
  width: 100%;
  background: var(--surface-muted);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 12px;
  font-size: 15px;
  font-family: inherit;
}

.staff-confirm {
  background: var(--available-bg);
  color: var(--available-text);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13.5px;
  margin-bottom: 14px;
}
.staff-confirm.new { background: var(--accent-tint); color: var(--accent-tint-text); }

.error-msg { color: var(--error); font-size: 13px; margin-top: -4px; margin-bottom: 12px; }

.modal-actions { display: flex; gap: 10px; margin-top: 6px; }
.modal-actions .btn { flex: 1; }

/* ---------------- Toggle switch ---------------- */
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface-muted);
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 14px;
}
.toggle-row .toggle-title { font-size: 13.5px; font-weight: 700; }
.toggle-row .toggle-sub { font-size: 11.5px; color: var(--text-dim); margin-top: 2px; }

.toggle-row-plain {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 0;
  border-bottom: 1px solid var(--surface-muted);
  font-size: 13px;
}

.switch {
  width: 44px; height: 26px;
  border-radius: 999px;
  border: none;
  padding: 2px;
  cursor: pointer;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-shrink: 0;
}
.switch.on { background: var(--accent); justify-content: flex-end; }
.switch .knob {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: white;
  display: block;
  box-shadow: 0 1px 3px rgba(0,0,0,0.25);
}

/* ---------------- Fuel selector ---------------- */
.fuel-selector { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.fuel-option {
  flex: 1;
  min-width: 44px;
  border: 1px solid var(--border);
  background: var(--surface-muted);
  color: var(--text-dim);
  border-radius: 8px;
  padding: 8px 0;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.fuel-option.active { background: var(--accent); color: white; border-color: var(--accent); }

/* ---------------- Remarks ---------------- */
.remark-banner {
  background: var(--remark-bg);
  color: var(--remark-text);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13px;
  margin-bottom: 8px;
}
.remark-banner .meta { color: var(--text-dim); font-size: 11px; margin-top: 3px; }

.loan-info {
  font-size: 13px;
  background: var(--surface-muted);
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 12px;
  color: var(--text);
}
.loan-info strong { color: var(--text); }

/* ---------------- Toast ---------------- */
.toast {
  position: fixed;
  top: 18px; left: 50%;
  transform: translateX(-50%);
  background: white;
  border: 1px solid var(--border);
  padding: 12px 20px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  z-index: 200;
  box-shadow: var(--shadow);
  display: none;
}
.toast.show { display: block; }
.toast.success { color: var(--available-text); }
.toast.error { color: var(--error); }

/* ---------------- Help content ---------------- */
.help-block { margin-bottom: 16px; }
.help-block:last-child { margin-bottom: 0; }
.help-block p { font-size: 13.5px; line-height: 1.7; color: oklch(0.35 0.02 260); margin: 0; }
.help-block p strong { color: var(--text); }

/* ---------------- Login screen ---------------- */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 28px;
  width: 100%;
  max-width: 360px;
  text-align: center;
  box-shadow: var(--shadow);
}
.login-card .brand-mark { margin: 0 auto 16px; width: 48px; height: 48px; border-radius: 14px; font-size: 16px; }

/* ---------------- Admin tabs ---------------- */
.admin-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 10px;
}
.admin-tabs {
  display: flex;
  gap: 6px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
  overflow-x: auto;
}
.admin-tab {
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-dim);
  cursor: pointer;
  border: none;
  background: none;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}
.admin-tab.active { color: var(--accent); border-color: var(--accent); }
.admin-panel { display: none; }
.admin-panel.active { display: block; }

/* ---------------- KPI cards (Overview) ---------------- */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 28px;
}
.kpi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}
.kpi-card.tinted { border: none; }
.kpi-card .kpi-num { font-size: 26px; font-weight: 800; }
.kpi-card .kpi-label { font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.03em; margin-top: 2px; color: var(--text-dim); }
.kpi-card.available { background: var(--available-bg); }
.kpi-card.available .kpi-num, .kpi-card.available .kpi-label { color: var(--available-text); }
.kpi-card.loaned { background: var(--loaned-bg); }
.kpi-card.loaned .kpi-num, .kpi-card.loaned .kpi-label { color: var(--loaned-text); }
.kpi-card.maintenance { background: var(--maintenance-bg); }
.kpi-card.maintenance .kpi-num, .kpi-card.maintenance .kpi-label { color: var(--maintenance-text); }
.kpi-card.remarks { background: var(--remark-bg); }
.kpi-card.remarks .kpi-num, .kpi-card.remarks .kpi-label { color: var(--remark-text); }

.section-title { font-size: 14px; font-weight: 800; margin-bottom: 14px; }

.util-row { margin-bottom: 14px; max-width: 520px; }
.util-row .util-head { display: flex; justify-content: space-between; font-size: 12.5px; margin-bottom: 5px; }
.util-row .util-head span:first-child { font-weight: 700; }
.util-row .util-head span:last-child { color: var(--text-dim); }
.util-track { height: 8px; border-radius: 999px; background: var(--surface-muted); overflow: hidden; }
.util-fill { height: 100%; border-radius: 999px; background: var(--accent); }

.settings-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  max-width: 420px;
  margin-top: 28px;
}
.settings-card .settings-title { font-size: 14px; font-weight: 800; margin-bottom: 4px; }
.settings-card .settings-sub { font-size: 12px; color: var(--text-dim); margin-bottom: 12px; }
.segmented {
  display: flex;
  background: var(--surface-muted);
  border-radius: 10px;
  padding: 3px;
  gap: 3px;
}
.segmented button {
  flex: 1;
  border: none;
  background: transparent;
  padding: 8px 0;
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-dim);
  cursor: pointer;
  font-family: inherit;
}
.segmented button.active { background: white; color: var(--text); box-shadow: 0 1px 3px rgba(0,0,0,0.1); }

/* ---------------- Tables ---------------- */
.table-wrap { border: 1px solid var(--border); border-radius: 12px; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: white; font-size: 13px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--text-dim); font-weight: 700; font-size: 11px; text-transform: uppercase; letter-spacing: 0.03em; }
tbody tr:last-child td { border-bottom: none; }

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.filter-input {
  background: var(--surface-muted);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 10px;
  font-size: 13px;
  font-family: inherit;
}

.inline-form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  background: white;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 16px;
}

/* ---------------- Documents / archives ---------------- */
.doc-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--surface-muted);
  flex-wrap: wrap;
}
.doc-row:last-child { border-bottom: none; }
.doc-row .doc-type-label { font-size: 13px; font-weight: 700; flex: 1; min-width: 140px; }
.doc-row .doc-status { font-size: 12px; color: var(--text-dim); }
.doc-row .doc-actions { display: flex; gap: 6px; align-items: center; }
.doc-row input[type="file"] { font-size: 12px; color: var(--text-dim); max-width: 160px; }

.archive-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 8px;
  flex-wrap: wrap;
  font-size: 13px;
}
.archive-row .archive-meta { color: var(--text-dim); font-size: 12px; }
.archive-row .archive-actions { display: flex; gap: 6px; }

/* ---------------- Checklist (legacy inspection viewer) ---------------- */
.checklist-section { margin-bottom: 16px; }
.checklist-title { font-size: 13px; font-weight: 800; margin-bottom: 8px; }
.checklist-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 0; border-bottom: 1px solid var(--surface-muted); font-size: 13px; gap: 10px;
}
.checklist-item:last-child { border-bottom: none; }

/* ---------------- Responsive tweaks ---------------- */
@media (max-width: 420px) {
  .modal { padding: 18px; }
  .summary-chip .num { font-size: 15px; }
}