/* ═══════════════════════════════════════════
   AutoRent Web — Mobile-First Stylesheet
   Fonts: Syne (headings) + DM Sans (body)
   ═══════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:       #0c0f18;
  --bg2:      #131929;
  --bg3:      #1a2235;
  --border:   #1e2d45;
  --border2:  #2a3f60;
  --text:     #e2e8f8;
  --muted:    #7a8fb0;
  --hint:     #344060;
  --blue:     #3b82f6;
  --blue2:    #2563eb;
  --green:    #22c55e;
  --amber:    #f59e0b;
  --purple:   #a855f7;
  --red:      #f87171;
  --radius:   12px;
  --radius-sm:8px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Navbar ──────────────────────────────── */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 0 20px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: 60px;
}
.nav-logo {
  font-family: 'Syne', sans-serif;
  font-size: 20px;
  font-weight: 800;
  color: var(--blue);
  text-decoration: none;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 22px;
  cursor: pointer;
  padding: 8px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  padding: 8px 14px;
  color: var(--muted);
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  transition: background .15s, color .15s;
}
.nav-link:hover { background: var(--bg3); color: var(--text); }
.nav-cta {
  background: var(--blue);
  color: #fff !important;
  padding: 8px 18px;
}
.nav-cta:hover { background: var(--blue2); }
/* Active state for navigation links */
.nav-link.active {
    background: var(--blue);
    color: #fff !important;
}
/* ── Main ────────────────────────────────── */
.main-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 16px 60px;
}

/* ── Page header ─────────────────────────── */
.page-header { margin-bottom: 24px; }
.page-title {
  font-family: 'Syne', sans-serif;
  font-size: 28px;
  font-weight: 800;
  color: var(--text);
}
.page-sub { color: var(--muted); font-size: 14px; margin-top: 4px; }

/* ── Stat Grid ───────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--bg2);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid;
}
.stat-card.blue   { border-color: #3b82f640; }
.stat-card.green  { border-color: #22c55e40; }
.stat-card.amber  { border-color: #f59e0b40; }
.stat-card.purple { border-color: #a855f740; }
.stat-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 8px; }
.stat-value { font-family: 'Syne', sans-serif; font-size: 30px; font-weight: 800; color: var(--text); }

/* ── Card ────────────────────────────────── */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.card-title {
  font-family: 'Syne', sans-serif;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ── Table ───────────────────────────────── */
.table-wrap { overflow-x: auto; }
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 500px;
}
.table th {
  text-align: left;
  padding: 10px 12px;
  background: var(--bg3);
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.table td {
  padding: 12px 12px;
  border-top: 1px solid var(--border);
  color: var(--text);
}
.table tr:hover td { background: var(--bg3); }
.mono { font-family: monospace; font-size: 13px; color: var(--muted); }

/* ── Badges ──────────────────────────────── */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
}
.badge.available { background: #0d3320; color: #22c55e; }
.badge.rented    { background: #3a1c0a; color: #f59e0b; }
.badge.cat       { background: var(--bg3); color: var(--muted); border: 1px solid var(--border2); }

/* ── Buttons ─────────────────────────────── */
.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background .15s, transform .1s;
  text-align: center;
}
.btn:active { transform: scale(.98); }
.btn-primary   { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue2); }
.btn-secondary { background: var(--bg3); color: var(--muted); border: 1px solid var(--border2); }
.btn-secondary:hover { background: var(--border); color: var(--text); }
.btn-sm  { padding: 7px 14px; font-size: 13px; }
.btn-xs  { padding: 5px 10px; font-size: 12px; }
.btn-full { width: 100%; display: block; }

.btn-row {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}
.btn-row.center { justify-content: center; }

/* ── Form ────────────────────────────────── */
.form-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.form-card { max-width: 100%; }
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .4px;
  margin-bottom: 8px;
}
.field input,
.field select {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  color: var(--text);
  font-size: 15px;
  font-family: 'DM Sans', sans-serif;
  outline: none;
  transition: border .15s;
}
.field input:focus,
.field select:focus { border-color: var(--blue); }
.field input::placeholder { color: var(--hint); }
.field select option { background: var(--bg3); }

/* ── Price Preview ───────────────────────── */
.price-preview {
  background: #0d1e38;
  border: 1px solid #1a3a6a;
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  margin-bottom: 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.preview-label { color: var(--muted); font-size: 13px; }
.preview-price { font-family: 'Syne', sans-serif; font-size: 22px; font-weight: 800; color: var(--blue); }

/* ── Car list (rent page sidebar) ────────── */
.side-card h3 { margin-bottom: 14px; }
.car-list { display: flex; flex-direction: column; gap: 10px; }
.car-item {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.car-item:hover { border-color: var(--blue); background: #0d1e38; }
.car-item-main { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 4px; }
.car-item-name { font-weight: 600; font-size: 14px; }
.car-item-price { font-size: 13px; color: var(--blue); font-weight: 600; }

/* ── Return car options ──────────────────── */
.return-car-list { display: flex; flex-direction: column; gap: 12px; }
.return-car-option {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  cursor: pointer;
  transition: border-color .15s;
}
.return-car-option:hover { border-color: var(--blue); }
.return-car-option input[type="radio"] { margin-top: 4px; accent-color: var(--blue); }
.return-car-info { display: flex; flex-direction: column; gap: 3px; }
.return-car-name { font-weight: 600; font-size: 15px; }
.return-car-meta { font-size: 13px; color: var(--muted); }
.return-car-date { font-size: 12px; color: var(--hint); }

/* ── Success page ────────────────────────── */
.success-page { max-width: 520px; margin: 0 auto; text-align: center; padding: 20px 0; }
.success-icon { font-size: 56px; margin-bottom: 16px; }
.success-title { font-family: 'Syne', sans-serif; font-size: 28px; font-weight: 800; margin-bottom: 8px; }
.success-sub { color: var(--muted); margin-bottom: 28px; }

.receipt { text-align: left; margin-bottom: 24px; }
.receipt-title {
  font-family: 'Syne', sans-serif;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .5px;
}
.receipt-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.receipt-row span:first-child { color: var(--muted); }
.total-row { margin-top: 4px; font-weight: 700; font-size: 16px; }
.total-row span:last-child { color: var(--green); font-family: 'Syne', sans-serif; font-size: 20px; }

/* ── Alerts ──────────────────────────────── */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 14px;
  font-weight: 500;
}
.alert-error { background: #2d0f0f; border: 1px solid #6b2020; color: var(--red); }

/* ── Empty states ────────────────────────── */
.empty-state {
  text-align: center;
  padding: 48px 20px;
}
.empty-icon { font-size: 48px; margin-bottom: 14px; }
.empty-state h3 { font-size: 18px; margin-bottom: 8px; }
.empty-state p { color: var(--muted); margin-bottom: 20px; }
.empty-msg { color: var(--hint); font-size: 14px; padding: 20px 0; text-align: center; }

/* ── Footer ──────────────────────────────── */
.footer {
  text-align: center;
  padding: 20px;
  color: var(--hint);
  font-size: 12px;
  border-top: 1px solid var(--border);
}

/* ── Tablet (640px+) ─────────────────────── */
@media (min-width: 640px) {
  .stat-grid { grid-template-columns: repeat(4, 1fr); }
  .form-layout { grid-template-columns: 1fr 380px; }
  .btn-full { width: auto; display: inline-block; }
}

/* ── Desktop (900px+) ────────────────────── */
@media (min-width: 900px) {
  .main-content { padding: 36px 24px 80px; }
  .page-title { font-size: 34px; }
}

/* ── Mobile nav ──────────────────────────── */
@media (max-width: 639px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    padding: 10px 0 16px;
    gap: 2px;
  }
  .nav-links.open { display: flex; }
  .nav-link { width: 100%; padding: 10px 14px; }
  .stat-value { font-size: 24px; }
}

/* ── Manage Cars page ────────────────────── */
.manage-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.btn-danger {
  background: #3d0f0f;
  color: #f87171;
  border: 1px solid #6b2020;
  display:inline-block;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
}
.btn-danger:hover { background: #5a1010; color: #fca5a5; }
.hint-text { font-size: 12px; color: var(--hint); }
.alert-success {
  background: #0d3320;
  border: 1px solid #1a5c3a;
  color: #4ade80;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 14px;
  font-weight: 500;
}
.nav-manage {
  background: #1a2a1a;
  color: #4ade80 !important;
  border: 1px solid #1e4a1e;
  border-radius: var(--radius-sm);
  margin-left: 4px;
}
.nav-manage:hover { background: #1e3a1e !important; }
.nav-charts {
  background: #1a1a2e;
  color: #a855f7 !important;
  border: 1px solid #3a1a5a;
  border-radius: var(--radius-sm);
  margin-left: 4px;
}
.nav-charts:hover { background: #2a1a3e !important; }

/* ── Charts page ─────────────────────────── */
.charts-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.chart-card { padding: 24px; }
.chart-sub  { color: var(--muted); font-size: 13px; margin: 4px 0 20px; }
@media (min-width: 800px) {
  .charts-grid { grid-template-columns: 1fr 1fr; }
}

/* ── Date price preview ──────────────────── */
.price-preview {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.preview-detail { display: flex; flex-direction: column; gap: 2px; }
.preview-days {
  font-family: 'Syne', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

/* ── Manage layout ───────────────────────── */
@media (min-width: 900px) {
  .manage-layout { grid-template-columns: 420px 1fr; }
}
@media (max-width: 480px) {
  .field-row { grid-template-columns: 1fr; }
}

/* ── Date input ──────────────────────────── */
input[type="date"] {
  color-scheme: dark;
}