:root {
  --bg: #1a1a1a;
  --bg-panel: #232323;
  --bg-card: #262626;
  --border: #383838;
  --gold: #A8893A;
  --gold-dim: #6e5c28;
  --text: #e8e6e1;
  --text-dim: #9a9a9a;
  --danger: #a84a3a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  min-height: 100vh;
}

.mono, .stat-value, .entry-cost, .entry-mileage {
  font-family: "SF Mono", "Courier New", monospace;
}

.hidden { display: none !important; }

.screen { min-height: 100vh; }

/* Login */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-box {
  text-align: center;
  width: 260px;
}
.login-box h1 {
  letter-spacing: 0.15em;
  color: var(--gold);
  font-size: 1.4rem;
  margin-bottom: 1.5rem;
}
.login-box input {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  margin-bottom: 0.75rem;
  font-size: 1rem;
}
.login-box button {
  width: 100%;
  padding: 0.75rem;
  background: var(--gold);
  border: none;
  color: #1a1a1a;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
}
.error-text {
  color: var(--danger);
  font-size: 0.85rem;
  min-height: 1.2em;
}

/* Header */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1rem;
  border-bottom: 1px solid var(--border);
}
header h1 {
  letter-spacing: 0.15em;
  color: var(--gold);
  font-size: 1.2rem;
  margin: 0;
}
.icon-btn {
  background: var(--gold);
  color: #1a1a1a;
  border: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-size: 1.3rem;
  cursor: pointer;
  line-height: 1;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.logout-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 6px;
  padding: 0.4rem 0.65rem;
  font-size: 0.78rem;
  cursor: pointer;
}
.logout-btn:active {
  border-color: var(--gold-dim);
  color: var(--gold);
}

/* Vehicle list */
.vehicle-list {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.vehicle-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  cursor: pointer;
}
.vehicle-card:active { border-color: var(--gold-dim); }
.vehicle-card-title {
  font-size: 1.05rem;
  font-weight: 600;
}
.vehicle-card-sub {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-top: 0.15rem;
}
.vehicle-card-stats {
  display: flex;
  gap: 1.25rem;
  margin-top: 0.6rem;
  font-size: 0.8rem;
  color: var(--gold);
}
.status-sold {
  color: var(--text-dim);
  font-size: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1rem 0.4rem;
  margin-left: 0.5rem;
}
.reg-due {
  font-size: 0.75rem;
}
.reg-due-soon { color: #c99a3a; }
.reg-due-overdue { color: var(--danger); }

.aaa-card {
  margin: 1rem 1rem 0 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold-dim);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  cursor: pointer;
}
.aaa-card .aaa-label {
  color: var(--gold);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.3rem;
}
.aaa-card .aaa-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--text);
}
.aaa-card .aaa-empty {
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* Detail */
#vehicle-detail { padding: 1rem; }
.back-btn {
  background: none;
  border: none;
  color: var(--gold);
  font-size: 0.9rem;
  cursor: pointer;
  padding: 0.5rem 0;
  margin-bottom: 0.5rem;
}
.vehicle-header {
  margin-bottom: 1rem;
}
.vehicle-header h2 {
  margin: 0 0 0.15rem 0;
}
.vehicle-header .sub {
  color: var(--text-dim);
  font-size: 0.9rem;
}

.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}
.tab-btn {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-dim);
  padding: 0.6rem;
  font-size: 0.85rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.tab-btn.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
.info-stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
}
.info-stat-label {
  color: var(--text-dim);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.stat-value {
  font-size: 1rem;
  margin-top: 0.25rem;
}
.info-notes {
  grid-column: 1 / -1;
}
.edit-vehicle-btn, .delete-vehicle-btn {
  margin-top: 1rem;
  width: 100%;
  padding: 0.65rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  color: var(--text);
  cursor: pointer;
  font-size: 0.85rem;
}
.delete-vehicle-btn { color: var(--danger); border-color: var(--danger); margin-top: 0.5rem; }

.add-entry-btn {
  width: 100%;
  padding: 0.65rem;
  background: var(--gold);
  color: #1a1a1a;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  margin-bottom: 1rem;
  cursor: pointer;
}

.entry-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.entry-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold-dim);
  border-radius: 6px;
  padding: 0.75rem;
  cursor: pointer;
}
.entry-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.entry-date { color: var(--gold); font-size: 0.8rem; }
.entry-cost { font-size: 0.9rem; }
.entry-type { font-weight: 600; font-size: 0.92rem; margin-top: 0.2rem; }
.entry-desc { color: var(--text-dim); font-size: 0.85rem; margin-top: 0.15rem; }
.entry-meta {
  display: flex;
  gap: 1rem;
  margin-top: 0.4rem;
  font-size: 0.75rem;
  color: var(--text-dim);
}
.empty-state {
  color: var(--text-dim);
  text-align: center;
  padding: 2rem 1rem;
  font-size: 0.9rem;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 100;
}
.modal-box {
  background: var(--bg-panel);
  width: 100%;
  max-width: 480px;
  border-radius: 14px 14px 0 0;
  padding: 1.25rem;
  max-height: 88vh;
  overflow-y: auto;
}
.modal-box h3 {
  margin-top: 0;
  color: var(--gold);
  letter-spacing: 0.05em;
}
.field-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
  display: block;
}
.field {
  margin-bottom: 0.85rem;
}
.field input, .field select, .field textarea {
  width: 100%;
  padding: 0.6rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: inherit;
}
.field textarea { resize: vertical; min-height: 60px; }
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
.modal-actions {
  display: flex;
  gap: 0.6rem;
  margin-top: 1rem;
}
.modal-actions button {
  flex: 1;
  padding: 0.7rem;
  border-radius: 6px;
  border: none;
  font-weight: 600;
  cursor: pointer;
}
.btn-save { background: var(--gold); color: #1a1a1a; }
.btn-cancel { background: var(--bg-card); color: var(--text); border: 1px solid var(--border) !important; }
.btn-delete { background: var(--danger); color: #fff; }

@media (min-width: 640px) {
  #app, #login-screen { max-width: 640px; margin: 0 auto; }
}