/* ── Design Tokens ─────────────────────────────────────────────────────── */
:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --bg-page: #f1f5f9;
  --bg-card: #ffffff;

  --text-primary:  #0f172a;
  --text-muted:    #64748b;
  --border-subtle: rgba(15, 23, 42, 0.08);

  --radius-card: 1rem;
  --radius-inner: calc(1rem - 1px);
  --radius-sm: 0.5rem;

  --shadow-card: 0 1px 3px rgba(15,23,42,0.06), 0 2px 10px rgba(15,23,42,0.05);
  --shadow-hover: 0 6px 24px rgba(15,23,42,0.10), 0 2px 8px rgba(15,23,42,0.06);
  --shadow-nav:   0 2px 12px rgba(0,0,0,0.20);

  --grad-navy:   linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
  --grad-blue:   linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  --grad-green:  linear-gradient(135deg, #10b981 0%, #059669 100%);
  --grad-amber:  linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  --grad-purple: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
  --grad-rose:   linear-gradient(135deg, #f43f5e 0%, #be123c 100%);
  --grad-teal:   linear-gradient(135deg, #14b8a6 0%, #0f766e 100%);

  /* Override Bootstrap border-radius */
  --bs-border-radius:    0.5rem;
  --bs-border-radius-sm: 0.375rem;
  --bs-border-radius-lg: 0.75rem;
  --bs-card-border-radius: var(--radius-card);
  --bs-card-inner-border-radius: var(--radius-inner);
}

/* ── Base ──────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 { font-weight: 600; letter-spacing: -0.01em; }

main.container-fluid { padding-top: 1.5rem; padding-bottom: 3rem; }

/* ── Animations ────────────────────────────────────────────────────────── */
@keyframes cardIn {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0);    }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── Cards ─────────────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle) !important;
  border-radius: var(--radius-card) !important;
  box-shadow: var(--shadow-card);
  animation: cardIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) backwards;
  animation-delay: var(--card-delay, 0s);
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

/* Lift on hover — only for non-table, non-segment wrapper cards */
.card.lift:hover,
.card.stat-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

/* ── Stat Cards (gradient) ─────────────────────────────────────────────── */
.stat-card {
  border: none !important;
  color: #fff !important;
}
.stat-card .text-muted,
.stat-card .small  { color: rgba(255,255,255,0.78) !important; }
.stat-card .h2,
.stat-card .h3,
.stat-card .h5     { color: #fff !important; }

.stat-blue   { background: var(--grad-blue)   !important; }
.stat-green  { background: var(--grad-green)  !important; }
.stat-amber  { background: var(--grad-amber)  !important; }
.stat-purple { background: var(--grad-purple) !important; }
.stat-teal   { background: var(--grad-teal)   !important; }
.stat-rose   { background: var(--grad-rose)   !important; }

/* ── Navbar ────────────────────────────────────────────────────────────── */
.navbar.bg-primary {
  background: var(--grad-navy) !important;
  box-shadow: var(--shadow-nav);
  padding-top: 0.625rem;
  padding-bottom: 0.625rem;
}

.navbar-brand {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.navbar .nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.65rem;
  transition: background 0.15s;
}

.navbar .nav-link:hover { background: rgba(255,255,255,0.10); }

/* ── Buttons ───────────────────────────────────────────────────────────── */
.btn {
  font-weight: 500;
  font-size: 0.875rem;
  border-radius: var(--radius-sm) !important;
  transition: all 0.15s ease;
}

.btn-primary {
  background: var(--grad-blue);
  border: none;
}
.btn-primary:hover,
.btn-primary:focus {
  background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
  box-shadow: 0 4px 14px rgba(59,130,246,0.38);
  transform: translateY(-1px);
}

.btn-success {
  background: var(--grad-green);
  border: none;
}
.btn-success:hover {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  transform: translateY(-1px);
}

.btn-lg { font-size: 0.9375rem; }

.btn-sm { font-size: 0.8125rem; }

/* ── Forms ─────────────────────────────────────────────────────────────── */
.form-control,
.form-select {
  border-radius: var(--radius-sm) !important;
  border-color: #cbd5e1;
  font-size: 0.875rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus,
.form-select:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.form-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.3rem;
}

.input-group .btn { transform: none !important; }

/* ── Tables ────────────────────────────────────────────────────────────── */
.table {
  font-size: 0.875rem;
  --bs-table-hover-bg: #f8fafc;
}

.table th {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom-width: 1px !important;
}

.table-light { background-color: #f8fafc !important; }

/* ── Badges ────────────────────────────────────────────────────────────── */
.badge {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border-radius: 0.375rem;
  padding: 0.3em 0.55em;
}

/* ── Alerts ────────────────────────────────────────────────────────────── */
.alert {
  border-radius: var(--radius-sm) !important;
  font-size: 0.875rem;
  border-left-width: 4px;
  animation: fadeIn 0.3s ease;
}

/* ── Nav Pills (admin/report sub-navs) ────────────────────────────────── */
.nav-pills .nav-link {
  font-size: 0.8125rem;
  font-weight: 500;
  border-radius: var(--radius-sm) !important;
  color: var(--text-muted);
  padding: 0.35rem 0.8rem;
  transition: background 0.15s, color 0.15s;
}
.nav-pills .nav-link:hover:not(.active) {
  background: rgba(59,130,246,0.08);
  color: #3b82f6;
}
.nav-pills .nav-link.active {
  background: var(--grad-blue);
  color: #fff;
}

/* ── List Groups ───────────────────────────────────────────────────────── */
.list-group-item {
  border-color: var(--border-subtle);
  font-size: 0.875rem;
}

/* ── Card Headers ──────────────────────────────────────────────────────── */
.card-header {
  background: #f8fafc;
  border-bottom-color: var(--border-subtle);
  font-size: 0.875rem;
}

/* ── Dropdowns ─────────────────────────────────────────────────────────── */
.dropdown-menu {
  border-radius: var(--radius-sm) !important;
  border-color: var(--border-subtle);
  box-shadow: 0 8px 24px rgba(15,23,42,0.10);
  font-size: 0.875rem;
}

/* ── Page section headers ──────────────────────────────────────────────── */
.h4 { font-size: 1.1rem; }
.h5 { font-size: 0.95rem; }

/* ── Approval history timeline ─────────────────────────────────────────── */
.list-group .list-group-item:last-child { border-bottom: none; }

/* ── Segment block accent ──────────────────────────────────────────────── */
.segment-block > .card-header {
  background: linear-gradient(90deg, #f8fafc 0%, #f1f5f9 100%);
}

/* ── Quick fill locked fields ──────────────────────────────────────────── */
.segment-block input[readonly],
.segment-block select:disabled {
  background-color: #f1f5f9 !important;
  color: #475569 !important;
  cursor: default;
  opacity: 1;
}

/* Round trip checkbox when disabled by quickfill */
#is_round_trip:disabled + label {
  opacity: 0.5;
  cursor: default;
}
#is_round_trip:disabled {
  cursor: default;
}
#return_leg_miles[readonly] {
  background-color: #f1f5f9 !important;
  color: #475569 !important;
  cursor: default;
}

/* ── Quick fill modal route cards ──────────────────────────────────────── */
.route-card-btn {
  display: block;
  width: 100%;
  background: #fff;
  border: 1.5px solid #e2e8f0;
  border-radius: .75rem;
  padding: .85rem 1rem;
  text-align: left;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s, transform .12s;
  margin-bottom: .5rem;
}
.route-card-btn:hover,
.route-card-btn:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59,130,246,.12);
  outline: none;
  transform: translateY(-1px);
}
.route-card-btn:active {
  transform: translateY(0);
  background: #f8fafc;
}
.route-addr {
  font-size: .875rem;
  font-weight: 600;
  color: #0f172a;
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.route-meta {
  font-size: .78rem;
  color: #64748b;
}
.route-freq {
  background: #f1f5f9;
  color: #475569;
  border-radius: .3rem;
  padding: .1em .4em;
  font-size: .7rem;
  font-weight: 600;
}

/* ── Return leg card (dashed border) ──────────────────────────────────── */
.border-dashed {
  border-style: dashed !important;
  border-color: #cbd5e1 !important;
  opacity: 0.85;
}

/* ── Address autocomplete dropdown ────────────────────────────────────── */
.ac-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 1050;
  display: none;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  box-shadow: 0 6px 20px rgba(15,23,42,.12);
  overflow: hidden;
  background: #fff;
}

.ac-dropdown .ac-item {
  display: block;
  width: 100%;
  padding: .5rem .8rem;
  font-size: .875rem;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-subtle);
}
.ac-dropdown .ac-item:last-child { border-bottom: none; }
.ac-dropdown .ac-item:hover,
.ac-dropdown .ac-item.ac-active { background: #f1f5f9; color: #1d4ed8; }


/* ── Utility ───────────────────────────────────────────────────────────── */
.text-gradient-blue {
  background: var(--grad-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}