/* ============================================
   BIB Pickup — Design System
   Modern dashboard, dark mode, kiosk-friendly
   ============================================ */

:root {
  --bg-0:        #07090f;
  --bg-1:        #0d1117;
  --bg-2:        #161b22;
  --bg-3:        #1f262f;
  --border:      rgba(255, 255, 255, 0.08);
  --border-hi:   rgba(255, 255, 255, 0.14);

  --text:        #e6edf3;
  --text-mute:   #8b949e;
  --text-faint:  #4a5568;

  --primary:     #6366f1;
  --primary-hi:  #818cf8;
  --primary-lo:  rgba(99, 102, 241, 0.12);

  --accent:      #facc15;
  --success:     #22c55e;
  --danger:      #ef4444;
  --warning:     #f59e0b;
  --info:        #3b82f6;

  --shadow-sm:   0 1px 2px rgba(0,0,0,.3);
  --shadow:      0 4px 12px rgba(0,0,0,.4);
  --shadow-lg:   0 12px 36px rgba(0,0,0,.5);

  --r-sm: 6px;
  --r:    10px;
  --r-lg: 16px;

  --sidebar-w: 260px;
  --topbar-h:  56px;
}

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

html, body {
  height: 100%;
  background: var(--bg-0);
  color: var(--text);
  font-family: 'Inter', 'Sarabun', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

a { color: var(--primary-hi); text-decoration: none; }
a:hover { text-decoration: underline; }
button { font-family: inherit; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-1); }
::-webkit-scrollbar-thumb { background: var(--border-hi); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-faint); }

/* ============================================
   APP SHELL — Sidebar + Topbar + Main
   ============================================ */

.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: var(--topbar-h) 1fr;
  height: 100vh;
  overflow: hidden;
}

.sidebar {
  grid-row: 1 / -1;
  background: var(--bg-1);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.sidebar-brand {
  display: flex; align-items: center; gap: 10px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.sidebar-brand img { width: 32px; height: 32px; }
.sidebar-brand .brand-title { font-weight: 700; font-size: 15px; color: var(--text); }
.sidebar-brand .brand-sub { font-size: 11px; color: var(--text-mute); }

.sidebar-section { padding: 16px 12px 4px; }
.sidebar-section-title {
  font-size: 11px; font-weight: 600;
  color: var(--text-faint);
  letter-spacing: 0.6px;
  text-transform: uppercase;
  padding: 0 8px 8px;
}

.sidebar-nav { display: flex; flex-direction: column; gap: 1px; padding: 0 8px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px;
  border-radius: var(--r-sm);
  color: var(--text-mute);
  font-size: 13.5px;
  transition: background .12s, color .12s;
}
.nav-item:hover {
  background: var(--bg-2);
  color: var(--text);
  text-decoration: none;
}
.nav-item.active {
  background: var(--primary-lo);
  color: var(--primary-hi);
}
.nav-item .icon { font-size: 16px; opacity: .9; }
.nav-item .count {
  margin-left: auto;
  background: var(--bg-3);
  color: var(--text-mute);
  font-size: 11px; padding: 2px 7px;
  border-radius: 10px;
}
.nav-item.active .count {
  background: rgba(99,102,241,0.2);
  color: var(--primary-hi);
}

.sidebar-footer {
  margin-top: auto;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-mute);
}
.sidebar-user {
  display: flex; align-items: center; gap: 10px;
  padding: 10px;
  border-radius: var(--r-sm);
  background: var(--bg-2);
}
.sidebar-user .avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-hi));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 600; font-size: 13px;
}
.sidebar-user .meta { line-height: 1.3; flex: 1; min-width: 0; }
.sidebar-user .name { font-weight: 600; color: var(--text); font-size: 13px; }
.sidebar-user .role { font-size: 11px; color: var(--text-mute); }
.sidebar-user a {
  color: var(--text-mute);
  padding: 4px 8px;
  border-radius: 4px;
}
.sidebar-user a:hover { background: var(--bg-3); color: var(--danger); text-decoration: none; }

.topbar {
  background: var(--bg-0);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 24px;
  z-index: 10;
}
.topbar-title { font-size: 15px; font-weight: 600; color: var(--text); }
.topbar-spacer { flex: 1; }
.topbar select, .topbar .select {
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 7px 12px;
  border-radius: var(--r-sm);
  font-size: 13px;
  cursor: pointer;
}
.topbar select:focus { outline: none; border-color: var(--primary); }
.topbar-label {
  font-size: 11px;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.main {
  overflow-y: auto;
  padding: 24px 28px;
  background: var(--bg-0);
}

/* Page header */
.page-header {
  display: flex; align-items: flex-end; gap: 16px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.page-title { font-size: 22px; font-weight: 700; color: var(--text); }
.page-subtitle { font-size: 13px; color: var(--text-mute); margin-top: 4px; }
.page-header .actions { margin-left: auto; display: flex; gap: 8px; }

/* ============================================
   COMPONENTS
   ============================================ */

/* Card */
.card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 18px;
}
.card-header {
  display: flex; align-items: center; gap: 12px;
  margin: -18px -18px 16px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.card-title { font-size: 14px; font-weight: 600; color: var(--text); }

/* Stats grid */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}
.stat {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 18px;
  position: relative;
}
.stat-label {
  font-size: 11px;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.stat-num {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  line-height: 1;
}
.stat-num.yellow { color: var(--accent); }
.stat-num.green { color: var(--success); }
.stat-num.red { color: var(--danger); }
.stat-num.blue { color: var(--info); }
.stat-sub {
  font-size: 12px;
  color: var(--text-mute);
  margin-top: 6px;
}
.stat-delta {
  position: absolute;
  top: 14px; right: 16px;
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 4px;
}
.stat-delta.up { background: rgba(34,197,94,0.12); color: var(--success); }
.stat-delta.down { background: rgba(239,68,68,0.12); color: var(--danger); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 14px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background .12s, transform .08s, border-color .12s;
}
.btn:hover { background: var(--bg-3); border-color: var(--border-hi); text-decoration: none; }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-hi); border-color: var(--primary-hi); }

.btn-success { background: var(--success); border-color: var(--success); color: #fff; }
.btn-success:hover { background: #16a34a; border-color: #16a34a; }

.btn-danger { background: rgba(239,68,68,0.12); border-color: rgba(239,68,68,0.3); color: #fca5a5; }
.btn-danger:hover { background: rgba(239,68,68,0.2); }

.btn-ghost { background: transparent; }

.btn-lg { padding: 12px 22px; font-size: 14px; }
.btn-xl { padding: 16px 28px; font-size: 16px; }

/* Form */
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-label {
  font-size: 12px; font-weight: 500;
  color: var(--text-mute);
  letter-spacing: 0.3px;
}
.form-control {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  -webkit-appearance: none;
  appearance: none;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--bg-2);
  box-shadow: 0 0 0 3px var(--primary-lo);
}
.form-control::placeholder { color: var(--text-faint); }

.form-error {
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.25);
  color: #fca5a5;
  padding: 10px 14px;
  border-radius: var(--r-sm);
  font-size: 13px;
  margin-bottom: 16px;
}

/* Tables */
.table-wrap {
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--bg-1);
}
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.table th {
  background: var(--bg-2);
  color: var(--text-mute);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
.table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: rgba(255,255,255,0.02); }

/* Badge */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 500;
}
.badge.green { background: rgba(34,197,94,0.12); color: #86efac; }
.badge.yellow { background: rgba(250,204,21,0.12); color: #fde047; }
.badge.red { background: rgba(239,68,68,0.12); color: #fca5a5; }
.badge.blue { background: rgba(59,130,246,0.12); color: #93c5fd; }
.badge.gray { background: var(--bg-3); color: var(--text-mute); }

/* Progress */
.progress {
  background: var(--bg-2);
  border-radius: 100px;
  height: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width .4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Empty / Loading */
.empty {
  background: var(--bg-1);
  border: 1px dashed var(--border-hi);
  border-radius: var(--r);
  padding: 32px;
  text-align: center;
  color: var(--text-mute);
}
.empty-icon { font-size: 36px; opacity: .35; margin-bottom: 10px; }
.empty-title { color: var(--text); font-weight: 600; margin-bottom: 4px; }

.loading {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid var(--border-hi);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Toast */
.toast {
  position: fixed;
  bottom: 24px; right: 24px;
  background: var(--bg-2);
  border: 1px solid var(--border-hi);
  border-radius: var(--r);
  padding: 12px 18px;
  font-size: 13px;
  color: var(--text);
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  max-width: 360px;
}
.toast.error { border-color: var(--danger); }
.toast.success { border-color: var(--success); }

/* Utilities */
.text-mute { color: var(--text-mute); }
.text-faint { color: var(--text-faint); }
.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.font-mono { font-family: 'Roboto Mono', 'JetBrains Mono', monospace; font-variant-numeric: tabular-nums; }
.flex { display: flex; gap: 12px; align-items: center; }
.flex-col { display: flex; flex-direction: column; gap: 8px; }
.flex-1 { flex: 1; }
.space-between { justify-content: space-between; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mb-4 { margin-bottom: 16px; }
.text-sm { font-size: 12px; }
.text-lg { font-size: 16px; }
.text-xl { font-size: 20px; }
.text-2xl { font-size: 26px; }
.text-3xl { font-size: 32px; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.uppercase { text-transform: uppercase; letter-spacing: 0.5px; }

@media (max-width: 980px) {
  :root { --sidebar-w: 60px; }
  .sidebar-brand .brand-title,
  .sidebar-brand .brand-sub,
  .sidebar-section-title,
  .nav-item span:not(.icon):not(.count),
  .sidebar-user .meta { display: none; }
  .nav-item { justify-content: center; }
  .sidebar-user { padding: 6px; }
}