:root {
    --bg: #0F1117;
    --bg2: #1A1D27;
    --bg3: #222635;
    --bg4: #2A2E3F;
    --orange: #FF6B35;
    --orange2: #FF8C5A;
    --orange-glow: rgba(255,107,53,0.15);
    --orange-dim: rgba(255,107,53,0.08);
    --text: #F0F1F6;
    --text2: #9B9DB5;
    --text3: #6B6E88;
    --border: rgba(255,255,255,0.07);
    --border2: rgba(255,107,53,0.25);
    --green: #22C55E;
    --green-dim: rgba(34,197,94,0.12);
    --red: #EF4444;
    --red-dim: rgba(239,68,68,0.12);
    --yellow: #F59E0B;
    --yellow-dim: rgba(245,158,11,0.12);
    --blue: #3B82F6;
    --blue-dim: rgba(59,130,246,0.12);
    --purple: #8B5CF6;
    --sidebar-w: 260px;
    --header-h: 64px;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,0.4);
    --shadow-sm: 0 2px 12px rgba(0,0,0,0.3);
  }
  * { margin:0; padding:0; box-sizing:border-box; }
  body { font-family:'Inter',sans-serif; background:var(--bg); color:var(--text); min-height:100vh; overflow-x:hidden; }
  a { text-decoration: none; color: inherit; }
  
  /* ===== SCROLLBAR ===== */
  ::-webkit-scrollbar { width:5px; height:5px; }
  ::-webkit-scrollbar-track { background:var(--bg2); }
  ::-webkit-scrollbar-thumb { background:var(--bg4); border-radius:4px; }
  ::-webkit-scrollbar-thumb:hover { background:var(--orange); }

  /* ===== LOGIN PAGE ===== */
  #login-page {
    min-height:100vh; display:flex; align-items:center; justify-content:center;
    background: radial-gradient(ellipse at 30% 50%, rgba(255,107,53,0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 20%, rgba(59,130,246,0.05) 0%, transparent 50%), var(--bg);
  }
  .login-card {
    width:100%; max-width:420px; background:var(--bg2); border-radius:20px; padding:48px 40px;
    border:1px solid var(--border); box-shadow:0 24px 64px rgba(0,0,0,0.5);
  }
  .login-logo { text-align:center; margin-bottom:36px; }
  .login-logo .logo-icon {
    width:64px; height:64px; background:linear-gradient(135deg,var(--orange),#FF3D00);
    border-radius:16px; display:inline-flex; align-items:center; justify-content:center;
    font-size:28px; margin-bottom:16px; box-shadow:0 8px 32px rgba(255,107,53,0.35);
  }
  .login-logo h1 { font-family:'Rajdhani',sans-serif; font-size:28px; font-weight:700; letter-spacing:1px; }
  .login-logo p { color:var(--text2); font-size:13px; margin-top:4px; }
  .form-group { margin-bottom:20px; }
  .form-group label { display:block; font-size:13px; font-weight:500; color:var(--text2); margin-bottom:8px; letter-spacing:0.3px; }
  .form-control {
    width:100%; padding:12px 16px; background:var(--bg3); border:1.5px solid var(--border);
    border-radius:var(--radius-sm); color:var(--text); font-size:14px; font-family:'Inter',sans-serif;
    transition:.2s; outline:none;
  }
  .form-control:focus { border-color:var(--orange); box-shadow:0 0 0 3px var(--orange-dim); }
  .form-control::placeholder { color:var(--text3); }
  .input-icon { position:relative; }
  .input-icon .form-control { padding-left:44px; }
  .input-icon i { position:absolute; left:14px; top:50%; transform:translateY(-50%); color:var(--text3); font-size:15px; }
  .btn-primary {
    width:100%; padding:13px; background:linear-gradient(135deg,var(--orange),#FF3D00);
    border:none; border-radius:var(--radius-sm); color:#fff; font-size:15px; font-weight:600;
    font-family:'Inter',sans-serif; cursor:pointer; transition:.2s; letter-spacing:0.3px;
    box-shadow:0 4px 20px rgba(255,107,53,0.35);
  }
  .btn-primary:hover { transform:translateY(-1px); box-shadow:0 6px 28px rgba(255,107,53,0.45); }
  .login-footer { text-align:center; margin-top:24px; color:var(--text3); font-size:13px; }
  .login-roles { display:flex; gap:8px; margin-top:20px; }
  .role-btn {
    flex:1; padding:8px; background:var(--bg3); border:1px solid var(--border); border-radius:6px;
    color:var(--text2); font-size:11px; cursor:pointer; text-align:center; transition:.2s;
  }
  .role-btn:hover, .role-btn.active { background:var(--orange-dim); border-color:var(--border2); color:var(--orange); }
  .role-btn i { display:block; font-size:16px; margin-bottom:4px; }

  /* ===== MAIN APP ===== */
  #app { display:none; min-height:100vh; }
  #app.visible { display:flex; }

  /* ===== SIDEBAR ===== */
  .sidebar {
    width:var(--sidebar-w); background:var(--bg2); border-right:1px solid var(--border);
    display:flex; flex-direction:column; position:fixed; height:100vh; left:0; top:0; z-index:100;
    transition:.3s ease;
  }
  .sidebar-logo {
    padding:20px 20px 16px; display:flex; align-items:center; gap:12px;
    border-bottom:1px solid var(--border);
  }
  .logo-box {
    width:40px; height:40px; background:linear-gradient(135deg,var(--orange),#FF3D00);
    border-radius:10px; display:flex; align-items:center; justify-content:center;
    font-size:18px; flex-shrink:0; box-shadow:0 4px 16px rgba(255,107,53,0.3);
  }
  .logo-text h2 { font-family:'Rajdhani',sans-serif; font-size:18px; font-weight:700; line-height:1; }
  .logo-text span { font-size:11px; color:var(--text3); letter-spacing:0.5px; text-transform:uppercase; }
  .sidebar-nav { flex:1; overflow-y:auto; padding:12px 0; }
  .nav-section { padding:16px 20px 6px; font-size:10px; text-transform:uppercase; letter-spacing:1.5px; color:var(--text3); font-weight:600; }
  .nav-item {
    display:flex; align-items:center; gap:12px; padding:11px 20px; cursor:pointer;
    border-radius:0; color:var(--text2); font-size:14px; font-weight:500; transition:.15s;
    position:relative; margin:1px 8px; border-radius:8px;
  }
  .nav-item i { width:18px; text-align:center; font-size:15px; }
  .nav-item:hover { background:var(--bg3); color:var(--text); }
  .nav-item.active {
    background:var(--orange-dim); color:var(--orange);
    box-shadow:inset 3px 0 0 var(--orange);
  }
  .nav-item.active i { color:var(--orange); filter:drop-shadow(0 0 6px rgba(255,107,53,0.5)); }
  .nav-badge {
    margin-left:auto; background:var(--orange); color:#fff; font-size:10px;
    padding:2px 7px; border-radius:20px; font-weight:600;
  }
  .sidebar-footer { padding:16px; border-top:1px solid var(--border); }
  .user-card { display:flex; align-items:center; gap:10px; padding:10px; background:var(--bg3); border-radius:10px; }
  .user-av {
    width:36px; height:36px; background:linear-gradient(135deg,var(--orange),#FF3D00);
    border-radius:50%; display:flex; align-items:center; justify-content:center;
    font-size:14px; font-weight:700; flex-shrink:0;
  }
  .user-info span { display:block; font-size:13px; font-weight:600; }
  .user-info small { color:var(--text3); font-size:11px; }
  .user-logout { margin-left:auto; color:var(--text3); cursor:pointer; font-size:14px; }
  .user-logout:hover { color:var(--red); }

  /* ===== HEADER ===== */
  .header {
    position:fixed; top:0; left:var(--sidebar-w); right:0; height:var(--header-h);
    background:rgba(26,29,39,0.85); backdrop-filter:blur(12px); border-bottom:1px solid var(--border);
    display:flex; align-items:center; justify-content:space-between; padding:0 28px; z-index:99;
  }
  .header-left h3 { font-family:'Rajdhani',sans-serif; font-size:22px; font-weight:700; }
  .header-left .breadcrumb { font-size:12px; color:var(--text3); margin-top:1px; }
  .header-right { display:flex; align-items:center; gap:12px; }
  .header-btn {
    width:38px; height:38px; background:var(--bg3); border:1px solid var(--border);
    border-radius:9px; display:flex; align-items:center; justify-content:center;
    cursor:pointer; color:var(--text2); font-size:15px; transition:.15s; position:relative;
  }
  .header-btn:hover { background:var(--bg4); color:var(--text); }
  .notif-dot {
    position:absolute; top:6px; right:6px; width:8px; height:8px;
    background:var(--orange); border-radius:50%; border:2px solid var(--bg2);
  }
  .header-search {
    display:flex; align-items:center; gap:8px; background:var(--bg3);
    border:1px solid var(--border); border-radius:9px; padding:8px 14px; cursor:pointer;
  }
  .header-search input {
    background:none; border:none; outline:none; color:var(--text); font-size:13px;
    font-family:'Inter',sans-serif; width:180px;
  }
  .header-search input::placeholder { color:var(--text3); }

  /* ===== MAIN CONTENT ===== */
  .main { flex: 1; min-width: 0; margin-left:var(--sidebar-w); padding-top:var(--header-h); min-height:100vh; }
  .page { display:none; padding:28px; }
  .page.active { display:block; }
  .page-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:28px; }
  .page-title { font-family:'Rajdhani',sans-serif; font-size:26px; font-weight:700; }
  .page-sub { color:var(--text2); font-size:13px; margin-top:2px; }

  /* ===== BUTTONS ===== */
  .btn {
    display:inline-flex; align-items:center; gap:8px; padding:10px 20px;
    border-radius:var(--radius-sm); font-size:14px; font-weight:500; cursor:pointer;
    border:none; transition:.15s; font-family:'Inter',sans-serif;
  }
  .btn-sm { padding:7px 14px; font-size:13px; }
  .btn-xs { padding:5px 10px; font-size:12px; }
  .btn-orange { background:linear-gradient(135deg,var(--orange),#FF4500); color:#fff; box-shadow:0 3px 14px rgba(255,107,53,0.3); }
  .btn-orange:hover { transform:translateY(-1px); box-shadow:0 5px 20px rgba(255,107,53,0.4); }
  .btn-ghost { background:var(--bg3); color:var(--text2); border:1px solid var(--border); }
  .btn-ghost:hover { background:var(--bg4); color:var(--text); }
  .btn-danger { background:var(--red-dim); color:var(--red); border:1px solid rgba(239,68,68,0.2); }
  .btn-danger:hover { background:var(--red); color:#fff; }
  .btn-success { background:var(--green-dim); color:var(--green); border:1px solid rgba(34,197,94,0.2); }
  .btn-success:hover { background:var(--green); color:#fff; }
  .btn-blue { background:var(--blue-dim); color:var(--blue); border:1px solid rgba(59,130,246,0.2); }

  /* ===== CARDS ===== */
  .card {
    background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius);
    padding:24px; box-shadow:var(--shadow-sm);
  }
  .card-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:20px; }
  .card-title { font-family:'Rajdhani',sans-serif; font-size:17px; font-weight:700; }

  /* ===== STAT CARDS ===== */
  .stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-bottom:24px; }
  .stat-card {
    background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius);
    padding:20px; position:relative; overflow:hidden; transition:.2s;
  }
  .stat-card:hover { border-color:var(--border2); transform:translateY(-2px); }
  .stat-card::before {
    content:''; position:absolute; top:0; left:0; right:0; height:3px;
    background:linear-gradient(90deg,var(--orange),transparent);
  }
  .stat-card.green::before { background:linear-gradient(90deg,var(--green),transparent); }
  .stat-card.blue::before { background:linear-gradient(90deg,var(--blue),transparent); }
  .stat-card.purple::before { background:linear-gradient(90deg,var(--purple),transparent); }
  .stat-card.yellow::before { background:linear-gradient(90deg,var(--yellow),transparent); }
  .stat-icon {
    width:44px; height:44px; border-radius:10px; display:flex; align-items:center;
    justify-content:center; font-size:18px; margin-bottom:14px;
  }
  .stat-icon.orange { background:var(--orange-dim); color:var(--orange); }
  .stat-icon.green { background:var(--green-dim); color:var(--green); }
  .stat-icon.blue { background:var(--blue-dim); color:var(--blue); }
  .stat-icon.purple { background:rgba(139,92,246,0.12); color:var(--purple); }
  .stat-icon.yellow { background:var(--yellow-dim); color:var(--yellow); }
  .stat-value { font-family:'Rajdhani',sans-serif; font-size:30px; font-weight:700; line-height:1; }
  .stat-label { color:var(--text2); font-size:13px; margin-top:4px; }
  .stat-change { font-size:12px; margin-top:8px; display:flex; align-items:center; gap:4px; }
  .stat-change.up { color:var(--green); }
  .stat-change.down { color:var(--red); }

  /* ===== TABLE ===== */
  .table-wrap { overflow-x:auto; }
  table { width:100%; border-collapse:collapse; }
  thead th {
    padding:12px 16px; text-align:left; font-size:11px; text-transform:uppercase;
    letter-spacing:0.8px; color:var(--text3); font-weight:600; background:var(--bg3);
    border-bottom:1px solid var(--border); white-space:nowrap;
  }
  thead th:first-child { border-radius:var(--radius-sm) 0 0 0; }
  thead th:last-child { border-radius:0 var(--radius-sm) 0 0; }
  tbody td { padding:13px 16px; border-bottom:1px solid var(--border); font-size:14px; white-space:nowrap; }
  tbody tr { transition:.15s; }
  tbody tr:hover { background:var(--bg3); }
  tbody tr:last-child td { border-bottom:none; }

  /* ===== BADGES ===== */
  .badge {
    display:inline-flex; align-items:center; gap:5px; padding:4px 10px;
    border-radius:20px; font-size:11px; font-weight:600; text-transform:uppercase; letter-spacing:0.3px;
  }
  .badge::before { content:''; width:6px; height:6px; border-radius:50%; background:currentColor; }
  .badge-icon::before { display: none !important; }
  .badge-icon i { font-size: 10px; }
  .badge-green { background:var(--green-dim); color:var(--green); }
  .badge-red { background:var(--red-dim); color:var(--red); }
  .badge-yellow { background:var(--yellow-dim); color:var(--yellow); }
  .badge-blue { background:var(--blue-dim); color:var(--blue); }
  .badge-orange { background:var(--orange-dim); color:var(--orange); }
  .badge-gray { background:rgba(107,110,136,0.15); color:var(--text3); }
  .badge-purple { background:rgba(139,92,246,0.12); color:var(--purple); }

  /* ===== FORMS ===== */
  .form-grid { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
  .form-grid-3 { grid-template-columns:1fr 1fr 1fr; }
  .form-full { grid-column:1/-1; }
  .field-group { display:flex; flex-direction:column; gap:7px; }
  .field-group label { font-size:13px; font-weight:500; color:var(--text2); }
  .field-group .form-control, .field-group select, .field-group textarea {
    background:var(--bg3); border:1.5px solid var(--border); border-radius:var(--radius-sm);
    color:var(--text); font-size:14px; padding:11px 14px; outline:none; transition:.15s;
    font-family:'Inter',sans-serif; width:100%;
  }
  .field-group select { appearance:none; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239B9DB5' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 12px center; padding-right:36px; }
  .field-group .form-control:focus, .field-group select:focus, .field-group textarea:focus { border-color:var(--orange); box-shadow:0 0 0 3px var(--orange-dim); }
  .field-group textarea { min-height:100px; resize:vertical; }
  .field-group .form-control::placeholder { color:var(--text3); }
  .form-section-title { font-family:'Rajdhani',sans-serif; font-size:16px; font-weight:700; color:var(--orange); border-bottom:1px solid var(--border2); padding-bottom:8px; margin-bottom:16px; margin-top:8px; }
  .form-actions { display:flex; gap:12px; justify-content:flex-end; padding-top:20px; border-top:1px solid var(--border); margin-top:24px; }

  /* ===== TABS ===== */
  .tabs { display:flex; gap:4px; background:var(--bg3); padding:4px; border-radius:10px; width:fit-content; margin-bottom:24px; }
  .tab-btn { padding:8px 18px; border-radius:7px; font-size:13px; font-weight:500; cursor:pointer; color:var(--text2); transition:.15s; border:none; background:none; font-family:'Inter',sans-serif; }
  .tab-btn.active { background:var(--bg2); color:var(--text); box-shadow:0 2px 8px rgba(0,0,0,0.3); }

  /* ===== MODALS ===== */
  .modal-overlay {
    display:none; position:fixed; inset:0; background:rgba(0,0,0,0.7); z-index:1000;
    align-items:center; justify-content:center; backdrop-filter:blur(4px);
  }
  .modal-overlay.open { display:flex; }
  .modal {
    background:var(--bg2); border:1px solid var(--border); border-radius:16px;
    width:640px; max-width:90vw; max-height:85vh; overflow-y:auto; box-shadow:var(--shadow);
    animation:modalIn .2s ease;
  }
  .modal-lg { width:820px; }
  @keyframes modalIn { from{opacity:0;transform:scale(0.95)translateY(10px)} to{opacity:1;transform:none} }
  .modal-header { padding:24px 28px 20px; border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; }
  .modal-title { font-family:'Rajdhani',sans-serif; font-size:20px; font-weight:700; }
  .modal-close { width:32px; height:32px; background:var(--bg3); border:none; border-radius:7px; cursor:pointer; color:var(--text2); font-size:16px; display:flex; align-items:center; justify-content:center; }
  .modal-close:hover { background:var(--red-dim); color:var(--red); }
  .modal-body { padding:28px; }
  .modal-footer { padding:20px 28px; border-top:1px solid var(--border); display:flex; gap:12px; justify-content:flex-end; }

  /* ===== SEARCH & FILTER BAR ===== */
  .toolbar { display:flex; align-items:center; gap:12px; margin-bottom:20px; flex-wrap:wrap; }
  .search-box {
    display:flex; align-items:center; gap:8px; background:var(--bg3);
    border:1px solid var(--border); border-radius:var(--radius-sm); padding:9px 14px;
  }
  .search-box input { background:none; border:none; outline:none; color:var(--text); font-size:14px; font-family:'Inter',sans-serif; width:220px; }
  .search-box input::placeholder { color:var(--text3); }
  .search-box i { color:var(--text3); }
  .filter-select {
    background:var(--bg3); border:1px solid var(--border); border-radius:var(--radius-sm);
    color:var(--text); font-size:13px; padding:9px 14px; outline:none; cursor:pointer; font-family:'Inter',sans-serif;
  }

  /* ===== AVATAR ===== */
  .avatar {
    width:34px; height:34px; border-radius:50%; background:linear-gradient(135deg,var(--orange),var(--purple));
    display:inline-flex; align-items:center; justify-content:center; font-size:12px;
    font-weight:700; color:#fff; flex-shrink:0;
    overflow: hidden;
  }
  .avatar img {
    width: 100%; height: 100%; object-fit: cover;
  }
  .avatar-sm { width:28px; height:28px; font-size:10px; }
  .avatar-lg { width:48px; height:48px; font-size:16px; }
  .member-cell { display:flex; align-items:center; gap:10px; }
  .member-info span { font-weight:500; font-size:14px; }
  .member-info small { color:var(--text2); font-size:12px; display:block; }

  /* ===== PROFILE PAGE ===== */
  .profile-hero {
    background:linear-gradient(135deg,var(--bg2),var(--bg3));
    border:1px solid var(--border); border-radius:var(--radius); padding:28px; margin-bottom:20px;
    display:flex; align-items:center; gap:24px; position:relative; overflow:hidden;
  }
  .profile-hero::after {
    content:''; position:absolute; top:-50px; right:-50px; width:200px; height:200px;
    background:radial-gradient(circle,var(--orange-glow),transparent 70%); pointer-events:none;
  }
  .profile-av {
    width:80px; height:80px; border-radius:20px; background:linear-gradient(135deg,var(--orange),#FF3D00);
    display:flex; align-items:center; justify-content:center; font-size:30px; font-weight:700;
    color:#fff; flex-shrink:0; box-shadow:0 8px 24px rgba(255,107,53,0.35);
    overflow: hidden;
  }
  .profile-av img {
    width: 100%; height: 100%; object-fit: cover;
  }
  .profile-details h2 { font-family:'Rajdhani',sans-serif; font-size:26px; font-weight:700; }
  .profile-details .meta { display:flex; gap:16px; margin-top:6px; flex-wrap:wrap; }
  .profile-details .meta span { font-size:13px; color:var(--text2); display:flex; align-items:center; gap:6px; }
  .profile-details .meta span i { color:var(--orange); font-size:12px; }
  .profile-actions { margin-left:auto; display:flex; gap:8px; }

  /* ===== CHARTS (simple CSS bars) ===== */
  .chart-bar-wrap { display:flex; flex-direction:column; gap:12px; }
  .chart-bar-row { display:flex; align-items:center; gap:12px; }
  .chart-bar-label { width:80px; font-size:13px; color:var(--text2); text-align:right; }
  .chart-bar-track { flex:1; height:8px; background:var(--bg3); border-radius:4px; overflow:hidden; }
  .chart-bar-fill { height:100%; border-radius:4px; background:linear-gradient(90deg,var(--orange),var(--orange2)); transition:width 1s ease; }
  .chart-bar-val { width:60px; font-size:13px; font-weight:600; color:var(--text); }
  .mini-stat { display:flex; align-items:center; gap:8px; padding:10px; background:var(--bg3); border-radius:8px; }
  .mini-stat i { font-size:16px; }
  .mini-stat-val { font-family:'Rajdhani',sans-serif; font-size:18px; font-weight:700; }
  .mini-stat-label { font-size:11px; color:var(--text3); }

  /* ===== GRID LAYOUTS ===== */
  .grid-2 { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
  .grid-3 { display:grid; grid-template-columns:1fr 1fr 1fr; gap:16px; }
  .grid-main-side { display:grid; grid-template-columns:3fr 1fr; gap:20px; align-items:start; }
  .col-span-2 { grid-column:span 2; }

  /* ===== TIMELINE ===== */
  .timeline { position:relative; padding-left:24px; }
  .timeline::before { content:''; position:absolute; left:8px; top:0; bottom:0; width:1px; background:var(--border); }
  .timeline-item { position:relative; padding-bottom:20px; }
  .timeline-dot {
    position:absolute; left:-20px; top:4px; width:12px; height:12px;
    background:var(--orange); border-radius:50%; border:2px solid var(--bg2);
  }
  .timeline-title { font-size:14px; font-weight:600; }
  .timeline-meta { font-size:12px; color:var(--text3); margin-top:2px; }

  /* ===== WORKOUT/DIET ===== */
  .day-card { background:var(--bg3); border-radius:10px; padding:16px; border:1px solid var(--border); }
  .day-card h4 { font-family:'Rajdhani',sans-serif; font-size:15px; font-weight:700; color:var(--orange); margin-bottom:12px; }
  .exercise-row { display:flex; align-items:center; gap:12px; padding:8px 0; border-bottom:1px solid var(--border); }
  .exercise-row:last-child { border-bottom:none; }
  .exercise-name { font-size:13px; font-weight:500; flex:1; }
  .exercise-detail { font-size:12px; color:var(--text2); }
  .ex-badge { background:var(--orange-dim); color:var(--orange); font-size:11px; padding:2px 8px; border-radius:4px; }

  /* ===== CALENDAR ===== */
  .class-grid { display:grid; grid-template-columns:repeat(7,1fr); gap:8px; }
  .mobile-day-label { display: none; }
  .class-day-header { text-align:center; font-size:12px; color:var(--text3); font-weight:600; padding:8px; text-transform:uppercase; letter-spacing:0.5px; }
  .class-slot {
    background:var(--bg3); border:1px solid var(--border); border-radius:8px; padding:10px 8px;
    min-height:70px; font-size:12px; cursor:pointer; transition:.15s;
  }
  .class-slot:hover { border-color:var(--border2); }
  .class-event { background:var(--orange-dim); border-left:2px solid var(--orange); padding:5px 7px; border-radius:4px; margin-bottom:4px; }
  .class-event-name { font-size:12px; font-weight:600; color:var(--orange); }
  .class-event-meta { font-size:10px; color:var(--text2); margin-top:1px; }
  .class-event.blue { background:var(--blue-dim); border-color:var(--blue); }
  .class-event.blue .class-event-name { color:var(--blue); }
  .class-event.green { background:var(--green-dim); border-color:var(--green); }
  .class-event.green .class-event-name { color:var(--green); }
  .class-event.purple { background:rgba(139,92,246,0.1); border-color:var(--purple); }
  .class-event.purple .class-event-name { color:var(--purple); }

  /* ===== INVOICE ===== */
  .invoice-preview {
    background:#fff; color:#111; border-radius:12px; padding:36px; max-width:600px;
    margin:0 auto; font-family:'Inter',sans-serif;
  }
  .invoice-preview h1 { font-size:28px; font-weight:800; color:#FF6B35; }
  .invoice-header { display:flex; justify-content:space-between; margin-bottom:28px; }
  .invoice-meta-row { display:flex; justify-content:space-between; border-bottom:1px solid #eee; padding:10px 0; font-size:14px; }
  .invoice-total { background:#FF6B35; color:#fff; padding:16px; border-radius:8px; display:flex; justify-content:space-between; align-items:center; margin-top:20px; }
  .invoice-total .label { font-size:14px; }
  .invoice-total .amount { font-size:24px; font-weight:800; font-family:'Rajdhani',sans-serif; }

  /* ===== NOTIFICATION CARDS ===== */
  .notif-card {
    display:flex; align-items:flex-start; gap:14px; padding:16px; background:var(--bg3);
    border-radius:10px; border:1px solid var(--border); margin-bottom:8px; transition:.15s;
  }
  .notif-card:hover { border-color:var(--border2); }
  .notif-icon { width:40px; height:40px; border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:17px; flex-shrink:0; }
  .notif-content .title { font-size:14px; font-weight:500; }
  .notif-content .meta { font-size:12px; color:var(--text3); margin-top:3px; }
  .notif-time { margin-left:auto; font-size:11px; color:var(--text3); white-space:nowrap; }

  /* ===== REPORTS ===== */
  .report-metric { text-align:center; padding:20px; background:var(--bg3); border-radius:10px; }
  .report-metric .val { font-family:'Rajdhani',sans-serif; font-size:36px; font-weight:700; color:var(--orange); }
  .report-metric .lbl { font-size:13px; color:var(--text2); margin-top:4px; }

  /* ===== TOGGLE ===== */
  .toggle { display:flex; align-items:center; gap:10px; cursor:pointer; }
  .toggle-track {
    width:44px; height:24px; background:var(--bg4); border-radius:12px; position:relative;
    transition:.2s; flex-shrink:0;
  }
  .toggle-track.on { background:var(--orange); }
  .toggle-thumb {
    position:absolute; width:18px; height:18px; background:#fff; border-radius:50%;
    top:3px; left:3px; transition:.2s; box-shadow:0 1px 4px rgba(0,0,0,0.3);
  }
  .toggle-track.on .toggle-thumb { left:23px; }

  /* ===== PROGRESS ===== */
  .progress-track { height:6px; background:var(--bg3); border-radius:3px; overflow:hidden; }
  .progress-fill { height:100%; background:linear-gradient(90deg,var(--orange),var(--orange2)); border-radius:3px; }

  /* ===== EMPTY STATE ===== */
  .empty-state { text-align:center; padding:60px 20px; }
  .empty-state i { font-size:48px; color:var(--bg4); margin-bottom:16px; }
  .empty-state h3 { font-family:'Rajdhani',sans-serif; font-size:20px; color:var(--text2); }
  .empty-state p { color:var(--text3); font-size:14px; margin-top:6px; }

  /* ===== PILL STEPS ===== */
  .steps-bar { display:flex; align-items:center; gap:0; margin-bottom:28px; }
  .step-item { display:flex; align-items:center; gap:0; flex:1; }
  .step-num { width:30px; height:30px; border-radius:50%; background:var(--bg4); border:2px solid var(--border); display:flex; align-items:center; justify-content:center; font-size:13px; font-weight:600; color:var(--text3); flex-shrink:0; }
  .step-num.done { background:var(--orange); border-color:var(--orange); color:#fff; }
  .step-num.active { border-color:var(--orange); color:var(--orange); }
  .step-label { font-size:12px; color:var(--text3); margin-left:8px; }
  .step-label.active { color:var(--orange); }
  .step-line { flex:1; height:1px; background:var(--border); margin:0 8px; }
  .step-line.done { background:var(--orange); }

  /* ===== ROLE CHIP ===== */
  .role-chip { display:inline-flex; align-items:center; gap:5px; padding:4px 10px; border-radius:6px; font-size:12px; font-weight:600; background:var(--purple); background:rgba(139,92,246,0.12); color:var(--purple); }

  /* page transition */
  .page { animation:fadeIn .15s ease; }
  @keyframes fadeIn { from{opacity:0;transform:translateY(4px)} to{opacity:1;transform:none} }

  /* ===== RESPONSIVE ===== */
  .mobile-toggle {
    display: none;
    background: var(--bg3);
    border: 1px solid var(--border);
    color: var(--text2);
    font-size: 16px;
    width: 38px;
    height: 38px;
    border-radius: 9px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    margin-right: 12px;
    transition: 0.15s;
  }
  .mobile-toggle:hover {
    background: var(--bg4);
    color: var(--text);
  }
  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 99;
  }

  @media(max-width:1100px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .form-grid { grid-template-columns: 1fr; }
    .grid-2, .grid-3, .grid-main-side { grid-template-columns: 1fr; }
    .col-span-2 { grid-column: span 1 !important; }
  }

  @media(max-width:768px) {
    .mobile-toggle {
      display: inline-flex;
    }
    .sidebar {
      transform: translateX(-100%);
      transition: transform 0.3s ease;
      z-index: 100;
    }
    .sidebar.open {
      transform: translateX(0);
    }
    .main {
      margin-left: 0 !important;
    }
    .header {
      left: 0 !important;
      padding: 0 16px;
    }
    .header-left h3 {
      font-size: 18px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 150px;
    }
    .header-left .breadcrumb {
      display: none;
    }
    .header-search {
      display: none !important;
    }
    .sidebar-overlay.show {
      display: block;
    }
    
    .stats-grid {
      grid-template-columns: 1fr !important;
      gap: 12px;
    }
    
    .page {
      padding: 16px;
    }
    .page-header {
      flex-direction: column;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 20px;
    }
    .page-header > div {
      width: 100%;
    }
    .page-header .btn, .page-header select, .page-header button {
      width: 100%;
      justify-content: center;
    }
    .page-header style + div {
      width: 100%;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    
    .form-grid-3, .form-grid-4 {
      grid-template-columns: 1fr !important;
    }
    
    .notif-dropdown {
      width: 340px;
      max-width: calc(100vw - 32px);
      right: 0;
    }
    
    .modal {
      width: 95vw;
      margin: 10px;
    }
    .modal-body {
      padding: 16px;
    }
    .modal-footer, .modal-header {
      padding: 16px;
    }
    
    .card {
      padding: 16px !important;
    }
    
    .class-grid-week {
      grid-template-columns: 1fr !important;
      gap: 16px !important;
    }
    .class-day-col {
      border-right: none !important;
      border-bottom: 1px solid var(--border);
      padding-bottom: 16px;
    }

    /* Step Bar responsive tweaks */
    .step-label {
      display: none !important;
    }
    .step-line {
      margin: 0 4px;
    }

    /* Class calendar slot stack */
    .class-grid {
      grid-template-columns: 1fr !important;
      gap: 16px !important;
    }
    .class-day-header {
      display: none !important;
    }
    .mobile-day-label {
      display: block;
      font-size: 13px;
      font-weight: 700;
      color: var(--orange);
      margin-bottom: 8px;
      text-transform: uppercase;
      border-bottom: 1px solid var(--border);
      padding-bottom: 4px;
    }

    /* Profile hero vertical stack */
    .profile-hero {
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 16px;
      padding: 20px;
    }
    .profile-details .meta {
      justify-content: center;
      gap: 12px;
    }
    .profile-actions {
      margin-left: 0;
      width: 100%;
      display: flex;
      justify-content: center;
      gap: 8px;
      margin-top: 8px;
    }

    /* Horizontal scroll for tabs */
    .tabs {
      display: flex;
      flex-wrap: nowrap;
      overflow-x: auto;
      width: 100%;
      -webkit-overflow-scrolling: touch;
      gap: 6px;
      padding: 4px;
      scrollbar-width: none;
    }
    .tabs::-webkit-scrollbar {
      display: none;
    }
    .tab-btn {
      flex: 0 0 auto;
      white-space: nowrap;
      padding: 6px 12px;
    }
  }

  @media(max-width: 480px) {
    .login-card {
      padding: 32px 20px;
    }
  }

  /* ===== NOTIFICATION DROPDOWN ===== */
  .notif-dropdown-container {
    position: relative;
    display: inline-block;
  }
  .notif-dropdown {
    display: none;
    position: absolute;
    top: 48px;
    right: 0;
    width: 360px;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    z-index: 1000;
    overflow: hidden;
    animation: modalIn .2s ease;
  }
  .notif-dropdown.show {
    display: block;
  }
  .notif-dropdown-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
  }
  .notif-dropdown-header h4 {
    font-family: 'Rajdhani', sans-serif;
    font-size: 16px;
    font-weight: 700;
    margin: 0;
  }
  .notif-dropdown-header button {
    background: none;
    border: none;
    color: var(--orange);
    font-size: 11.5px;
    font-weight: 600;
    cursor: pointer;
    padding: 0;
    font-family: 'Inter', sans-serif;
  }
  .notif-dropdown-header button:hover {
    text-decoration: underline;
  }
  .notif-dropdown-body {
    max-height: 320px;
    overflow-y: auto;
  }
  .notif-item {
    display: flex;
    gap: 12px;
    padding: 12px 18px;
    border-bottom: 1px solid var(--border);
    transition: background 0.15s;
    align-items: flex-start;
    position: relative;
  }
  .notif-item:hover {
    background: var(--bg3);
  }
  .notif-item.unread {
    background: rgba(255, 107, 53, 0.03);
  }
  .notif-icon-wrap {
    width: 32px;
    height: 32px;
    background: var(--bg3);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    flex-shrink: 0;
    border: 1px solid var(--border);
  }
  .notif-content {
    flex: 1;
    min-width: 0;
  }
  .notif-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .notif-type-badge {
    font-size: 10px;
    font-weight: 500;
    color: var(--text3);
    background: var(--bg4);
    padding: 1px 6px;
    border-radius: 4px;
    text-transform: uppercase;
  }
  .notif-text {
    font-size: 12px;
    color: var(--text2);
    margin-top: 4px;
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .notif-time {
    font-size: 10px;
    color: var(--text3);
    margin-top: 4px;
  }
  .mark-single-read-btn {
    background: none;
    border: none;
    color: var(--text3);
    font-size: 12px;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    align-self: center;
  }
  .mark-single-read-btn:hover {
    color: var(--green);
    background: var(--bg3);
  }
  .notif-empty {
    padding: 40px 20px;
    text-align: center;
    color: var(--text3);
    font-size: 13px;
  }
  .notif-dropdown-footer {
    padding: 12px;
    text-align: center;
    border-top: 1px solid var(--border);
    background: var(--bg3);
  }
  .notif-dropdown-footer a {
    font-size: 12px;
    font-weight: 600;
    color: var(--text2);
    display: block;
  }
  .notif-dropdown-footer a:hover {
    color: var(--orange);
  }