/* === DESIGN TOKENS === */
:root {
  --bg: #0f1117;
  --bg2: #181c27;
  --bg3: #1e2333;
  --border: #2a3045;
  --text: #e8eaf0;
  --text-muted: #7a84a0;
  --primary: #4f7cff;
  --primary-dark: #3a65e8;
  --success: #22c55e;
  --error: #ef4444;
  --warning: #f59e0b;
  --purple: #a855f7;
  --sidebar-w: 240px;
  --radius: 10px;
  --shadow: 0 4px 20px rgba(0,0,0,0.4);
  --font: 'Inter', sans-serif;
  --mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; font-family: var(--font); background: var(--bg); color: var(--text); font-size: 14px; }

/* === LOGIN === */
.login-page { min-height:100vh; display:flex; align-items:center; justify-content:center; background: linear-gradient(135deg, #0f1117 0%, #1a1f35 100%); }
.login-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 16px; padding: 40px; width: 100%; max-width: 400px; box-shadow: var(--shadow); }
.login-logo { text-align:center; margin-bottom:32px; }
.login-logo i { font-size:40px; color:var(--primary); }
.login-logo h1 { font-size:26px; font-weight:700; margin-top:8px; }
.login-logo p { color:var(--text-muted); font-size:13px; margin-top:4px; }

/* === APP SHELL === */
.app-shell { display:flex; height:100vh; overflow:hidden; }

/* === SIDEBAR === */
.sidebar { width:var(--sidebar-w); background:var(--bg2); border-right:1px solid var(--border); display:flex; flex-direction:column; flex-shrink:0; transition: transform .3s; z-index:100; }
.sidebar-header { padding:20px 16px; display:flex; align-items:center; gap:10px; border-bottom:1px solid var(--border); font-size:16px; font-weight:700; }
.sidebar-header i { color:var(--primary); font-size:20px; }
.sidebar-nav { flex:1; overflow-y:auto; padding:12px 8px; display:flex; flex-direction:column; gap:2px; }
.nav-item { display:flex; align-items:center; gap:10px; padding:10px 12px; border-radius:8px; text-decoration:none; color:var(--text-muted); font-size:13.5px; font-weight:500; transition:all .2s; cursor:pointer; }
.nav-item:hover { background:var(--bg3); color:var(--text); }
.nav-item.active { background:rgba(79,124,255,.15); color:var(--primary); }
.nav-item i { width:18px; text-align:center; }
.nav-item-kiosk { margin-top:8px; background:rgba(79,124,255,.08); border:1px solid rgba(79,124,255,.2); color:var(--primary); }
.nav-item-kiosk:hover { background:rgba(79,124,255,.2); }
.sidebar-footer { padding:12px; border-top:1px solid var(--border); display:flex; align-items:center; gap:8px; }
.user-badge { flex:1; display:flex; align-items:center; gap:8px; font-size:13px; overflow:hidden; }
.user-badge i { font-size:24px; color:var(--text-muted); }
.user-badge > div { overflow:hidden; }
.user-badge > div > div:first-child { font-weight:600; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.user-role { color:var(--primary); font-size:11px; text-transform:uppercase; letter-spacing:.5px; }
.btn-logout { background:none; border:1px solid var(--border); color:var(--text-muted); padding:7px 9px; border-radius:7px; cursor:pointer; transition:.2s; }
.btn-logout:hover { background:var(--error); border-color:var(--error); color:#fff; }

/* === TOPBAR === */
.main-content { flex:1; display:flex; flex-direction:column; overflow:hidden; }
.topbar { background:var(--bg2); border-bottom:1px solid var(--border); padding:0 20px; height:52px; display:flex; align-items:center; gap:12px; flex-shrink:0; }
.btn-menu-toggle { background:none; border:none; color:var(--text-muted); font-size:18px; cursor:pointer; display:none; padding:4px; }
.topbar-title { font-size:16px; font-weight:600; flex:1; }
.topbar-right { display:flex; align-items:center; gap:12px; }
.topbar-time { font-family:var(--mono); font-size:13px; color:var(--text-muted); }
.meal-badge { background:rgba(79,124,255,.15); border:1px solid rgba(79,124,255,.3); color:var(--primary); padding:4px 10px; border-radius:20px; font-size:12px; font-weight:600; }

/* === PAGE CONTAINER === */
.page-container { flex:1; overflow-y:auto; padding:20px; }
.page { }
.page-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:20px; }
.page-header h2 { font-size:20px; font-weight:700; }

/* === CARDS === */
.card { background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); overflow:hidden; margin-bottom:16px; }
.card-header { padding:14px 16px; border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; }
.card-header h3 { font-size:14px; font-weight:600; }
.card-body { padding:16px; }
.mb-3 { margin-bottom:16px; }
.mt-3 { margin-top:16px; }

/* === STATS === */
.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-bottom:20px; }
.stat-card { background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); padding:16px; display:flex; align-items:center; gap:14px; }
.stat-card i { font-size:24px; opacity:.8; }
.stat-num { font-size:28px; font-weight:700; font-family:var(--mono); }
.stat-label { color:var(--text-muted); font-size:12px; }
.stat-blue i { color:var(--primary); } .stat-blue .stat-num { color:var(--primary); }
.stat-green i { color:var(--success); } .stat-green .stat-num { color:var(--success); }
.stat-orange i { color:var(--warning); } .stat-orange .stat-num { color:var(--warning); }
.stat-purple i { color:var(--purple); } .stat-purple .stat-num { color:var(--purple); }
.dashboard-grid { display:grid; grid-template-columns:1fr 1fr; gap:16px; }

/* === TABLES === */
.data-table { width:100%; border-collapse:collapse; }
.data-table th { background:var(--bg3); padding:10px 12px; text-align:left; font-size:12px; font-weight:600; color:var(--text-muted); text-transform:uppercase; letter-spacing:.5px; }
.data-table td { padding:10px 12px; border-top:1px solid var(--border); font-size:13.5px; vertical-align:middle; }
.data-table tr:hover td { background:rgba(255,255,255,.02); }

/* === FORMS === */
.form-group { margin-bottom:14px; }
.form-group label { display:block; font-size:12px; font-weight:500; color:var(--text-muted); margin-bottom:5px; }
.form-input, .form-select, .form-textarea { width:100%; background:var(--bg3); border:1px solid var(--border); color:var(--text); padding:8px 11px; border-radius:7px; font-size:13.5px; font-family:var(--font); outline:none; transition:.2s; }
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color:var(--primary); box-shadow:0 0 0 3px rgba(79,124,255,.15); }
.form-textarea { resize:vertical; min-height:70px; }
.form-select option { background:var(--bg3); }
.form-input::placeholder { color:var(--text-muted); }
.filters-bar { display:flex; gap:10px; margin-bottom:14px; flex-wrap:wrap; align-items:center; }
.filters-bar .form-input, .filters-bar .form-select { width:auto; min-width:150px; }
.filter-group { display:flex; flex-direction:column; gap:4px; }
.filter-group label { font-size:11px; color:var(--text-muted); }
.radio-group { display:flex; gap:16px; margin-top:6px; }
.radio-label { display:flex; align-items:center; gap:6px; cursor:pointer; font-size:13.5px; }
.radio-label input { accent-color:var(--primary); }
.checkbox-label { display:flex; align-items:center; gap:8px; cursor:pointer; font-size:13.5px; }
.checkbox-label input { accent-color:var(--primary); width:15px; height:15px; }

/* Multi-select food types */
.food-type-select { display:flex; flex-wrap:wrap; gap:8px; }
.food-type-check { display:flex; align-items:center; gap:5px; background:var(--bg3); border:1px solid var(--border); padding:5px 10px; border-radius:20px; cursor:pointer; transition:.2s; }
.food-type-check:has(input:checked) { background:rgba(79,124,255,.15); border-color:var(--primary); color:var(--primary); }
.food-type-check input { display:none; }

/* === BUTTONS === */
.btn { display:inline-flex; align-items:center; gap:6px; padding:8px 14px; border-radius:7px; border:none; cursor:pointer; font-size:13px; font-weight:500; font-family:var(--font); transition:.2s; text-decoration:none; }
.btn-primary { background:var(--primary); color:#fff; } .btn-primary:hover { background:var(--primary-dark); }
.btn-secondary { background:var(--bg3); color:var(--text); border:1px solid var(--border); } .btn-secondary:hover { background:var(--border); }
.btn-success { background:var(--success); color:#fff; }
.btn-danger { background:var(--error); color:#fff; }
.btn-warning { background:var(--warning); color:#000; font-weight:600; }
.btn-sm { padding:5px 9px; font-size:12px; }
.btn-full { width:100%; justify-content:center; }
.btn-group { display:flex; gap:8px; flex-wrap:wrap; }

/* === BADGES === */
.badge { display:inline-flex; align-items:center; padding:3px 8px; border-radius:20px; font-size:11px; font-weight:600; }
.badge-success { background:rgba(34,197,94,.15); color:var(--success); }
.badge-error { background:rgba(239,68,68,.15); color:var(--error); }
.badge-warning { background:rgba(245,158,11,.15); color:var(--warning); }
.badge-primary { background:rgba(79,124,255,.15); color:var(--primary); }
.badge-muted { background:var(--bg3); color:var(--text-muted); }

/* === ALERTS === */
.alert { padding:10px 14px; border-radius:7px; font-size:13px; }
.alert-error { background:rgba(239,68,68,.1); border:1px solid rgba(239,68,68,.3); color:#fca5a5; }
.alert-success { background:rgba(34,197,94,.1); border:1px solid rgba(34,197,94,.3); color:#86efac; }
.alert-warning { background:rgba(245,158,11,.1); border:1px solid rgba(245,158,11,.3); color:#fcd34d; }

/* === MODAL === */
.modal-overlay { position:fixed; inset:0; background:rgba(0,0,0,.6); z-index:1000; display:flex; align-items:center; justify-content:center; backdrop-filter:blur(2px); }
.modal { background:var(--bg2); border:1px solid var(--border); border-radius:12px; width:100%; max-width:560px; max-height:90vh; display:flex; flex-direction:column; box-shadow:var(--shadow); }
.modal-header { padding:16px 20px; border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; }
.modal-header h3 { font-size:16px; font-weight:600; }
.modal-close { background:none; border:none; color:var(--text-muted); font-size:16px; cursor:pointer; padding:4px; border-radius:4px; }
.modal-close:hover { color:var(--text); }
.modal-body { padding:20px; overflow-y:auto; flex:1; }
.modal-footer { padding:14px 20px; border-top:1px solid var(--border); display:flex; justify-content:flex-end; gap:8px; }

/* === PAGINATION === */
.pagination { display:flex; gap:4px; padding:12px; justify-content:flex-end; }
.pagination button { background:var(--bg3); border:1px solid var(--border); color:var(--text); padding:5px 10px; border-radius:5px; cursor:pointer; font-size:12px; }
.pagination button.active { background:var(--primary); border-color:var(--primary); }
.pagination button:hover:not(.active) { background:var(--border); }

/* === TOAST === */
.toast-container { position:fixed; bottom:20px; right:20px; z-index:2000; display:flex; flex-direction:column; gap:8px; }
.toast { background:var(--bg2); border:1px solid var(--border); border-radius:8px; padding:12px 16px; min-width:260px; max-width:380px; display:flex; align-items:center; gap:10px; box-shadow:var(--shadow); animation:slideIn .3s ease; font-size:13px; }
.toast-success { border-left:3px solid var(--success); }
.toast-error { border-left:3px solid var(--error); }
.toast-warning { border-left:3px solid var(--warning); }
@keyframes slideIn { from { transform:translateX(100%); opacity:0; } to { transform:translateX(0); opacity:1; } }

/* === EMPTY STATE === */
.empty-state { text-align:center; padding:32px; color:var(--text-muted); font-size:13px; }

/* === TIMING ROWS === */
.timing-row { display:grid; grid-template-columns:160px 1fr 1fr 60px; gap:10px; align-items:center; padding:10px 0; border-bottom:1px solid var(--border); }
.timing-row:last-child { border-bottom:none; }
.timing-label { font-weight:500; font-size:13.5px; }
.toggle-switch { position:relative; width:40px; height:22px; }
.toggle-switch input { opacity:0; width:0; height:0; position:absolute; }
.toggle-slider { position:absolute; inset:0; background:var(--border); border-radius:22px; cursor:pointer; transition:.3s; }
.toggle-slider::before { content:''; position:absolute; width:16px; height:16px; left:3px; top:3px; background:#fff; border-radius:50%; transition:.3s; }
input:checked + .toggle-slider { background:var(--primary); }
input:checked + .toggle-slider::before { transform:translateX(18px); }

/* === KIOSK === */
.kiosk-page { background:var(--bg); min-height:calc(100vh - 52px); padding:0; }
.kiosk-container { max-width:900px; margin:0 auto; padding:24px 20px; }
.kiosk-header { text-align:center; margin-bottom:24px; }
.kiosk-header h1 { font-size:24px; font-weight:700; }
.kiosk-meal-badge { display:inline-block; margin-top:8px; padding:6px 16px; border-radius:20px; font-size:13px; font-weight:600; background:rgba(79,124,255,.15); border:1px solid rgba(79,124,255,.3); color:var(--primary); }
.kiosk-camera-area { display:grid; grid-template-columns:1fr 1fr; gap:24px; align-items:start; }
.camera-wrapper { position:relative; background:#000; border-radius:12px; overflow:hidden; aspect-ratio:4/3; border:2px solid var(--border); }
.camera-wrapper video, .camera-wrapper canvas { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.camera-wrapper canvas { pointer-events:none; }
.face-overlay { position:absolute; inset:0; border:3px solid transparent; border-radius:12px; transition:border-color .3s; }
.face-overlay.detecting { border-color:var(--warning); }
.face-overlay.matched { border-color:var(--success); }
.face-overlay.error { border-color:var(--error); }
.scan-line { position:absolute; left:0; right:0; height:2px; background:linear-gradient(90deg,transparent,var(--primary),transparent); top:0; animation:scanAnim 2s linear infinite; opacity:0; }
.scan-line.active { opacity:1; }
@keyframes scanAnim { from { top:0; } to { top:100%; } }
.kiosk-status { background:var(--bg2); border:1px solid var(--border); border-radius:12px; padding:24px; text-align:center; display:flex; flex-direction:column; align-items:center; gap:12px; min-height:200px; justify-content:center; }
.status-icon { width:60px; height:60px; border-radius:50%; background:var(--bg3); display:flex; align-items:center; justify-content:center; font-size:24px; color:var(--text-muted); }
.status-icon.idle { color:var(--text-muted); }
.status-icon.detecting { color:var(--warning); background:rgba(245,158,11,.1); }
.status-icon.success { color:var(--success); background:rgba(34,197,94,.1); }
.status-icon.error { color:var(--error); background:rgba(239,68,68,.1); }
.status-text { font-size:16px; font-weight:600; }
.status-sub { font-size:13px; color:var(--text-muted); max-width:240px; text-align:center; }
.progress-bar-wrap { width:100%; background:var(--bg3); border-radius:20px; height:8px; overflow:hidden; position:relative; }
.progress-bar { height:100%; background:var(--primary); border-radius:20px; transition:width .3s; width:0%; }
.progress-label { font-size:12px; color:var(--text-muted); font-family:var(--mono); }
.kiosk-result { margin-top:20px; }
.result-card { border-radius:12px; padding:24px; text-align:center; border:2px solid; }
.result-card.success { background:rgba(34,197,94,.08); border-color:var(--success); }
.result-card.error { background:rgba(239,68,68,.08); border-color:var(--error); }
.result-card.warning { background:rgba(245,158,11,.08); border-color:var(--warning); }
.result-icon { font-size:40px; margin-bottom:10px; }
.result-title { font-size:20px; font-weight:700; margin-bottom:8px; }
.result-details { color:var(--text-muted); font-size:14px; line-height:1.5; }
.override-section { margin-top:16px; padding-top:16px; border-top:1px solid var(--border); }
.override-note { font-size:12px; color:var(--text-muted); margin-bottom:8px; }

/* === FACE ENROLLMENT === */
.face-enroll-grid { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.sample-frames { display:flex; gap:8px; flex-wrap:wrap; margin-top:10px; }
.sample-frame { width:70px; height:70px; border-radius:8px; background:var(--bg3); border:2px solid var(--border); overflow:hidden; display:flex; align-items:center; justify-content:center; color:var(--text-muted); font-size:11px; }
.sample-frame img { width:100%; height:100%; object-fit:cover; }
.sample-frame.captured { border-color:var(--success); }

/* === MEAL WINDOW DISPLAY === */
.meal-window-item { display:flex; align-items:center; justify-content:space-between; padding:8px 0; border-bottom:1px solid var(--border); }
.meal-window-item:last-child { border-bottom:none; }
.meal-window-name { font-weight:500; }
.meal-window-time { font-family:var(--mono); font-size:12px; color:var(--text-muted); }
.meal-window-item.current .meal-window-name { color:var(--success); }
.meal-window-item.current .meal-window-time { color:var(--success); }

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .sidebar { position:fixed; left:0; top:0; bottom:0; transform:translateX(-100%); }
  .sidebar.open { transform:translateX(0); }
  .btn-menu-toggle { display:block; }
  .stats-grid { grid-template-columns:1fr 1fr; }
  .dashboard-grid { grid-template-columns:1fr; }
  .kiosk-camera-area { grid-template-columns:1fr; }
  .timing-row { grid-template-columns:1fr 1fr; grid-template-rows:auto auto; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns:1fr; }
}

.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }
.text-warning { color: var(--warning); }

/* ── Version badges ──────────────────────────────────────────────────────── */
.app-version-badge {
  display: inline-block;
  margin-top: 6px;
  padding: 2px 10px;
  border-radius: 20px;
  background: rgba(79,124,255,.12);
  border: 1px solid rgba(79,124,255,.25);
  color: var(--primary);
  font-size: 11px;
  font-family: var(--mono);
  letter-spacing: .4px;
}

.sidebar-version {
  font-size: 10px;
  font-family: var(--mono);
  color: rgba(79,124,255,.7);
  letter-spacing: .3px;
  margin-top: 1px;
}

.sidebar-footer-top {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  overflow: hidden;
}

.sidebar-version-footer {
  font-size: 10px;
  font-family: var(--mono);
  color: var(--text-muted);
  opacity: .5;
  text-align: center;
  padding: 4px 0 2px;
  border-top: 1px solid var(--border);
  margin-top: 6px;
  letter-spacing: .3px;
}

/* topbar version chip */
.topbar-version {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-muted);
  opacity: .6;
  margin-right: 4px;
}