/* ============================================================================
   NOVA Logistics — Shared component library
   Every duplicated UI pattern (buttons, cards, badges, modals, forms,
   toasts, chips) consolidated into one place. Page-level <style> blocks
   should progressively delete their copies of these rules as each page
   migrates (see redesign plan, Phase 1-4 "A→B→C→D" sequence) — until then,
   page-level rules simply override these via normal cascade order, so
   nothing breaks mid-migration.

   Sources merged: admin/layout.php (.btn-*, .card, .badge-*, .modal-*,
   .form-*, .chip), index.php (.trip-card, .btn-book, .btn-carpool),
   carpool.php (.ride-card, .btn-join, .btn-share, #toast, .recover-ride-*).
   ========================================================================= */

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: filter var(--transition-fast), opacity var(--transition-fast), transform var(--transition-fast);
}
.btn:hover { filter: brightness(92%); text-decoration: none; }
.btn:active { transform: translateY(1px); }

.btn-navy, .btn-primary { background: var(--navy); color: var(--white); }
.btn-navy:hover, .btn-primary:hover { background: var(--navy-mid); filter: none; }
.btn-gold    { background: var(--gold); color: var(--navy); }
.btn-red     { background: var(--red);  color: var(--white); }
.btn-green   { background: var(--green); color: var(--white); }
.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--navy);
}
.btn-outline:hover { background: rgba(15,31,61,.05); filter: none; }

.btn-sm   { padding: 5px 10px; font-size: 12px; min-height: 36px; }
.btn-icon { padding: 6px; border-radius: 6px; min-height: 36px; }
.btn-lg   { padding: 13px 30px; font-size: 15px; box-shadow: 0 4px 16px rgba(201,168,76,.25); }

.btn-text-link {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 12px;
  cursor: pointer;
  text-decoration: underline;
  font-family: inherit;
  padding: 0;
  min-height: auto;
}
.btn-text-link:hover { color: var(--navy); }

.btn-wa {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #25d366;
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 700;
  font-size: var(--font-size-body);
  transition: opacity var(--transition-fast);
}
.btn-wa:hover { opacity: .88; text-decoration: none; }

/* ── Cards (generic + trip/ride card patterns unified) ───────────────────── */
.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}
.card-title { font-size: var(--font-size-sm); font-weight: 700; color: var(--navy); }

/* Content card with image/footer slots — generalizes .trip-card / .ride-card */
.content-card {
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,.07);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.content-card:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(0,0,0,.12); }
.content-card-body   { padding: 20px; flex: 1; }
.content-card-title  { font-size: 18px; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.content-card-meta   { font-size: var(--font-size-sm); color: var(--text-muted); margin-bottom: 4px; display: flex; align-items: center; gap: 6px; }
.content-card-footer { padding: 14px 20px; border-top: 1px solid var(--border); margin-top: auto; }

/* ── Stat cards (admin dashboards) ───────────────────────────────────────── */
.stat-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 20px;
  border-left: 4px solid var(--gold);
}
.stat-card .stat-label { font-size: 12px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 6px; }
.stat-card .stat-value { font-size: 26px; font-weight: 700; color: var(--navy); }
.stat-card .stat-sub   { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* ── Badges & status pills ───────────────────────────────────────────────── */
.badge, .type-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: .3px;
  padding: 3px 9px;
  border-radius: 20px;
  white-space: nowrap;
}
.badge-upcoming  { background: var(--blue-lite);   color: var(--blue);   }
.badge-active    { background: var(--green-lite);  color: var(--green);  }
.badge-completed { background: #f3f4f6;            color: #6b7280;       }
.badge-paid      { background: var(--green-lite);  color: var(--green);  }
.badge-unpaid    { background: var(--yellow-lite); color: var(--yellow); }
.badge-failed    { background: var(--red-lite);    color: var(--red);    }
.badge-cancelled { background: #f3f4f6;            color: #6b7280;       }
.badge-expired   { background: #ede9fe;            color: #7c3aed;       }
.badge-lia       { background: #ede9fe;            color: #7c3aed;       }
.badge-maktab    { background: #fce7f3;            color: #be185d;       }
.badge-income    { background: var(--green-lite);  color: var(--green);  }
.badge-expense   { background: var(--red-lite);    color: var(--red);    }
.badge-dir       { background: #ede9fe;            color: #7c3aed; border-radius: 12px; }
.badge-full      { background: #f3f4f6; color: var(--text-muted); font-size: 11px; font-weight: 700; padding: 5px 12px; border-radius: 8px; }

/* ── Chips ───────────────────────────────────────────────────────────────── */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: var(--white);
  border: 1.5px solid #f59e0b;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.chip:hover { background: #fef3c7; }
.chip-list { display: flex; flex-wrap: wrap; gap: 6px; }

.ride-joined-chip {
  display: inline-flex; align-items: center; gap: 3px;
  background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534;
  font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 20px;
}
.chip-class { font-weight: 400; color: #16a34a; }
.chip-more  { background: #f3f4f6; border-color: var(--border); color: var(--text-muted); }

/* ── Forms ───────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: var(--space-4); }
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 6px;
}
.form-control {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 16px; /* prevents iOS auto-zoom */
  font-family: inherit;
  color: var(--text);
  background: var(--white);
  transition: border-color var(--transition-fast);
}
.form-control:focus { outline: none; border-color: var(--gold); }
select.form-control { cursor: pointer; }
.form-row   { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: var(--space-3); }
@media (max-width: 600px) {
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
}

/* ── Modals ──────────────────────────────────────────────────────────────── */
.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.modal-backdrop.show { display: flex; }
.modal {
  background: var(--white);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}
.modal-lg { max-width: 720px; }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 16px; font-weight: 700; color: var(--navy); }
.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 20px;
  line-height: 1;
  padding: 4px;
  min-height: auto;
}
.modal-body   { padding: 20px 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

/* ── Alerts / banners ────────────────────────────────────────────────────── */
.alert { padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: var(--space-4); font-size: 14px; }
.alert-success { background: var(--green-lite); color: var(--green); border: 1px solid #bbf7d0; }
.alert-error   { background: var(--red-lite);   color: var(--red);   border: 1px solid #fecaca; }
.alert-info    { background: var(--blue-lite);  color: var(--blue);  border: 1px solid #bfdbfe; }
.alert-warn    { background: var(--yellow-lite);color: var(--yellow);border: 1px solid #fde68a; }

/* ── Toast (carpool.php pattern, promoted for site-wide use) ─────────────── */
#toast, .toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #166534;
  color: #fff;
  padding: 13px 22px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s, transform .3s;
  z-index: 9999;
  white-space: nowrap;
  box-shadow: 0 4px 16px rgba(0,0,0,.18);
}
#toast.show, .toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ── Recover-ride / option-picker pattern (carpool.php) ──────────────────── */
.option-card, .recover-ride-option {
  display: block;
  width: 100%;
  text-align: left;
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 14px 42px 14px 16px;
  margin-bottom: 10px;
  cursor: pointer;
  font-family: inherit;
  position: relative;
  transition: border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}
.option-card:hover, .recover-ride-option:hover { border-color: var(--gold); box-shadow: 0 2px 12px rgba(201,168,76,.15); }
.option-card.selected, .recover-ride-option.selected { border-color: var(--gold); background: #fffbeb; box-shadow: 0 2px 16px rgba(201,168,76,.2); }
.option-card.selected::after, .recover-ride-option.selected::after {
  content: '✓'; position: absolute; top: 50%; right: 14px; transform: translateY(-50%);
  color: var(--gold); font-weight: 700; font-size: 18px;
}
.option-card:disabled, .recover-ride-option:disabled { opacity: .6; cursor: default; }

/* ── Vehicle / manifest cards (admin) ─────────────────────────────────────── */
.vehicle-card { border: 1.5px solid var(--border); border-radius: 10px; overflow: hidden; margin-bottom: var(--space-3); }
.vehicle-card-header { background: #f8f9fb; padding: 10px 14px; display: flex; align-items: center; justify-content: space-between; }
.vehicle-info { font-size: 13px; font-weight: 600; color: var(--navy); }
.vehicle-meta { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.capacity-badge { font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 12px; }
.capacity-ok   { background: var(--green-lite); color: var(--green); }
.capacity-full { background: var(--red-lite);   color: var(--red);   }

/* ── Unassigned box (admin manifest) ──────────────────────────────────────── */
.unassigned-box {
  background: #fffbeb;
  border: 1.5px dashed #f59e0b;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: var(--space-3);
}
.unassigned-box .box-label { font-size: 11px; font-weight: 700; color: #92400e; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 8px; }

/* ── Tables (desktop default; responsive reflow added per-page in Phase 3) ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .5px;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
td { padding: 12px 14px; font-size: 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #fafafa; }