:root {
  --primary: #4f46e5;
  --primary-dark: #3730a3;
  --surface: #ffffff;
  --bg: #f1f5f9;
  --border: #e2e8f0;
  --text: #1e293b;
  --muted: #64748b;
  --danger: #ef4444;
  --success: #22c55e;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -2px rgba(0,0,0,.05);
}

* { box-sizing: border-box; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
}

/* ── Navbar ── */
.navbar {
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  padding: 0 1.5rem;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: 0 2px 8px rgba(0,0,0,.2);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-brand {
  color: #fff;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: .5rem;
}

.navbar-brand span { color: #818cf8; }

.navbar-end { margin-left: auto; display: flex; align-items: center; gap: .75rem; }

/* ── Container ── */
.page { max-width: 1280px; margin: 0 auto; padding: 2rem 1.5rem; }

/* ── Stats row ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: .25rem;
}

.stat-value { font-size: 2rem; font-weight: 700; line-height: 1; color: var(--primary); }
.stat-label { font-size: .8rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }

/* ── Toolbar ── */
.toolbar {
  display: flex;
  gap: .75rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.search-box {
  flex: 1;
  min-width: 220px;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: .6rem 1rem .6rem 2.5rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  font-size: .9rem;
  outline: none;
  transition: border-color .15s;
}

.search-box input:focus { border-color: var(--primary); }

.search-box .icon {
  position: absolute;
  left: .75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: .9rem;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .55rem 1.1rem;
  border-radius: 8px;
  font-size: .875rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all .15s;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline { background: var(--surface); color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-ghost { background: transparent; color: var(--muted); padding: .4rem .6rem; }
.btn-ghost:hover { background: var(--bg); color: var(--text); }
.btn-sm { padding: .35rem .75rem; font-size: .8rem; }
.btn-icon { padding: .45rem; border-radius: 6px; }

/* ── Car grid ── */
.cars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.car-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: box-shadow .2s, transform .2s;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.car-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }

.car-photo {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 3rem;
  flex-shrink: 0;
}

.car-photo img { width: 100%; height: 100%; object-fit: cover; }

.car-body { padding: 1rem; flex: 1; display: flex; flex-direction: column; gap: .3rem; }

.car-plate {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: .05em;
  font-family: 'Courier New', monospace;
  color: var(--primary);
}

.car-meta { font-size: .85rem; color: var(--text); font-weight: 500; }
.car-company { font-size: .8rem; color: var(--muted); }

.car-badges {
  display: flex;
  gap: .4rem;
  margin-top: .5rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  padding: .2rem .6rem;
  border-radius: 20px;
  font-size: .72rem;
  font-weight: 500;
}

.badge-blue { background: #ede9fe; color: #5b21b6; }
.badge-green { background: #dcfce7; color: #15803d; }
.badge-gray { background: var(--bg); color: var(--muted); }

.car-footer {
  padding: .75rem 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  gap: .5rem;
  justify-content: flex-end;
}

/* ── Empty state ── */
.empty {
  text-align: center;
  padding: 5rem 2rem;
  color: var(--muted);
}

.empty-icon { font-size: 4rem; margin-bottom: 1rem; opacity: .4; }
.empty h3 { font-size: 1.1rem; margin: 0 0 .5rem; color: var(--text); }
.empty p { margin: 0 0 1.5rem; font-size: .9rem; }

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
}

.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.75rem;
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform .2s;
  box-shadow: var(--shadow-lg);
}

.modal-overlay.open .modal { transform: translateY(0); }
.modal-title { font-size: 1.15rem; font-weight: 700; margin: 0 0 1.5rem; }

/* ── Forms ── */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-grid .full { grid-column: 1 / -1; }

.form-group { display: flex; flex-direction: column; gap: .35rem; }
.form-label { font-size: .8rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }

.form-input {
  padding: .6rem .9rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: .9rem;
  outline: none;
  transition: border-color .15s;
  background: var(--surface);
  color: var(--text);
  width: 100%;
}

.form-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,.1); }
textarea.form-input { resize: vertical; min-height: 80px; font-family: inherit; }

.form-footer { display: flex; gap: .75rem; justify-content: flex-end; margin-top: 1.5rem; }

/* ── Car detail page ── */
.car-header {
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.car-header-banner {
  height: 200px;
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  position: relative;
  overflow: hidden;
}

.car-header-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .9;
}

.car-header-body {
  padding: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.car-header-info { flex: 1; }
.car-header-plate { font-size: 1.6rem; font-weight: 800; font-family: 'Courier New', monospace; color: var(--primary); }
.car-header-sub { color: var(--muted); margin-top: .25rem; }

/* ── Tabs ── */
.tabs { display: flex; gap: 0; border-bottom: 2px solid var(--border); margin-bottom: 1.5rem; }

.tab {
  padding: .65rem 1.25rem;
  font-size: .875rem;
  font-weight: 500;
  color: var(--muted);
  cursor: pointer;
  border: none;
  background: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  display: flex;
  align-items: center;
  gap: .4rem;
  transition: color .15s;
}

.tab:hover { color: var(--text); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

.tab-content { display: none; }
.tab-content.active { display: block; }

.info-item { display: flex; flex-direction: column; gap: .2rem; }

/* ── Document list ── */
.doc-list { display: flex; flex-direction: column; gap: .75rem; }

.doc-item {
  background: var(--surface);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.doc-icon {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: #ede9fe;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.doc-info { flex: 1; min-width: 0; }
.doc-name { font-weight: 500; font-size: .9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.doc-meta { font-size: .75rem; color: var(--muted); margin-top: .1rem; }
.doc-actions { display: flex; gap: .4rem; }

/* ── Photo gallery ── */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}

.photo-item {
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow);
  aspect-ratio: 4/3;
  background: var(--bg);
}

.photo-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.photo-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.4);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  opacity: 0;
  transition: opacity .2s;
}

.photo-item:hover .photo-overlay { opacity: 1; }

.primary-badge {
  position: absolute;
  top: .5rem;
  left: .5rem;
  background: var(--primary);
  color: #fff;
  font-size: .7rem;
  font-weight: 600;
  padding: .2rem .5rem;
  border-radius: 4px;
}

/* ── Upload zone ── */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  text-align: center;
  cursor: pointer;
  transition: all .2s;
  background: var(--surface);
  margin-bottom: 1.5rem;
}

.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--primary);
  background: #f5f3ff;
}

.upload-zone-icon { font-size: 2rem; color: var(--muted); margin-bottom: .75rem; }
.upload-zone p { color: var(--muted); font-size: .875rem; margin: .25rem 0; }
.upload-zone strong { color: var(--text); }

/* ── Section header ── */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.section-title { font-size: 1rem; font-weight: 700; }

/* ── Toast ── */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  z-index: 9999;
}

.toast {
  background: #1e293b;
  color: #fff;
  padding: .75rem 1.25rem;
  border-radius: 8px;
  font-size: .875rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: .5rem;
  animation: slideIn .2s ease;
}

.toast.error { background: var(--danger); }
.toast.success { background: #15803d; }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

/* ── Confirm dialog ── */
.confirm-dialog .modal { max-width: 400px; }
.confirm-dialog p { color: var(--muted); font-size: .9rem; margin: .5rem 0 1.5rem; }

/* ── Responsive ── */
@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
  .cars-grid { grid-template-columns: 1fr; }
  .photo-grid { grid-template-columns: repeat(2, 1fr); }
  .page { padding: 1rem; }
}

.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  color: var(--muted);
  font-size: .875rem;
  text-decoration: none;
  margin-bottom: 1.25rem;
  transition: color .15s;
}
.back-link:hover { color: var(--primary); }

.select-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .75rem center;
  padding-right: 2.5rem;
}

.loading-state { text-align: center; padding: 4rem; color: var(--muted); }

/* ── User dropdown ── */
.user-menu { position: relative; }

.user-avatar-btn {
  display: flex;
  align-items: center;
  gap: .5rem;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 8px;
  padding: .4rem .75rem;
  cursor: pointer;
  transition: background .15s;
  color: #fff;
}

.user-avatar-btn:hover { background: rgba(255,255,255,.18); }

.user-avatar {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, #4f46e5, #818cf8);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .8rem;
  color: #fff;
  flex-shrink: 0;
}

.user-name { font-size: .85rem; font-weight: 500; }

.dropdown-menu {
  position: absolute;
  top: calc(100% + .5rem);
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  min-width: 180px;
  overflow: hidden;
  display: none;
  z-index: 200;
}

.dropdown-menu.open { display: block; }

.dropdown-item {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .7rem 1rem;
  font-size: .875rem;
  color: var(--text);
  text-decoration: none;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  transition: background .1s;
  font-family: inherit;
}

.dropdown-item:hover { background: var(--bg); }
.dropdown-item.danger { color: var(--danger); }
.dropdown-item.danger:hover { background: #fef2f2; }
.dropdown-item i { width: 16px; text-align: center; color: var(--muted); }
.dropdown-item.danger i { color: var(--danger); }

/* ── Sold overlay on car cards ── */
.car-photo { position: relative; }

.sold-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.35);
  display: flex;
  align-items: center;
  justify-content: center;
}

.sold-stamp {
  background: #16a34a;
  color: #fff;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: .12em;
  padding: .4rem 1.2rem;
  border-radius: 6px;
  transform: rotate(-8deg);
  box-shadow: 0 4px 12px rgba(0,0,0,.3);
}

/* ── Info sections (car detail overview) ── */
.info-section {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
}

.info-section-title {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}

.sold-section { border-left: 3px solid #16a34a; }

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}

.info-item.full { grid-column: 1 / -1; }
.info-item-label { font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; font-weight: 600; margin-bottom: .2rem; }
.info-item-value { font-size: .95rem; font-weight: 500; }

/* ── Expenses ── */
.expense-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: .75rem;
  margin-bottom: 1.5rem;
}

.expense-summary-card {
  background: var(--surface);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: .2rem;
}

.expense-summary-card .val { font-size: 1.3rem; font-weight: 700; color: var(--primary); }
.expense-summary-card .lbl { font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; font-weight: 600; }

.expense-form-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.expense-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.expense-table th {
  text-align: left;
  padding: .75rem 1rem;
  font-size: .75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .05em;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.expense-table td {
  padding: .85rem 1rem;
  font-size: .875rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.expense-table tr:last-child td { border-bottom: none; }
.expense-table tr:hover td { background: #f8fafc; }

.cat-badge {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .2rem .6rem;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 500;
}

.cat-fuel      { background: #fef3c7; color: #92400e; }
.cat-repair    { background: #fee2e2; color: #991b1b; }
.cat-insurance { background: #dbeafe; color: #1e40af; }
.cat-parts     { background: #d1fae5; color: #065f46; }
.cat-service   { background: #ede9fe; color: #5b21b6; }
.cat-tax       { background: #fce7f3; color: #9d174d; }
.cat-other     { background: var(--bg); color: var(--muted); }