:root{--primary:#4f46e5;--primary-dark:#3730a3;--primary-light:#ede9fe;--secondary:#06b6d4;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--info:#3b82f6;--dark:#1e293b;--muted:#64748b;--border:#e2e8f0;--bg:#f8fafc;--white:#ffffff;--sidebar-w:260px;--header-h:64px;--radius:10px;--shadow:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.06);--shadow-md:0 4px 6px rgba(0,0,0,.07);--shadow-lg:0 10px 15px rgba(0,0,0,.08),0 4px 6px rgba(0,0,0,.05);--font:'Inter',system-ui,-apple-system,sans-serif;--transition:150ms ease}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:15px}
body{font-family:var(--font);background:var(--bg);color:var(--dark);line-height:1.6;min-height:100vh}
::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
.app-layout{display:flex;min-height:100vh}
.sidebar{width:var(--sidebar-w);background:var(--dark);color:#cbd5e1;display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:200;overflow-y:auto;transition:transform var(--transition)}
[dir=rtl] .sidebar{left:auto;right:0}
.sidebar-brand{display:flex;align-items:center;gap:10px;padding:18px 20px;border-bottom:1px solid rgba(255,255,255,.08);text-decoration:none}
.sidebar-brand-icon{width:36px;height:36px;background:var(--primary);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff;font-weight:700}
.sidebar-brand-name{font-size:.95rem;font-weight:600;color:#fff}
.sidebar-nav{flex:1;padding:12px 0}
.nav-section-label{font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#475569;padding:12px 20px 4px}
.nav-link{display:flex;align-items:center;gap:10px;padding:9px 20px;color:#94a3b8;text-decoration:none;font-size:.875rem;transition:background var(--transition),color var(--transition)}
.nav-link:hover{background:rgba(255,255,255,.05);color:#e2e8f0}
.nav-link.active{background:rgba(79,70,229,.2);color:#a5b4fc;border-right:3px solid var(--primary)}
[dir=rtl] .nav-link.active{border-right:none;border-left:3px solid var(--primary)}
.nav-link i{width:18px;text-align:center;font-size:.95rem;flex-shrink:0}
.nav-badge{margin-left:auto;background:var(--danger);color:#fff;font-size:.65rem;font-weight:700;padding:1px 6px;border-radius:20px}
.sidebar-footer{padding:16px 20px;border-top:1px solid rgba(255,255,255,.08);font-size:.8rem;color:#475569}
.main-wrap{flex:1;margin-left:var(--sidebar-w);display:flex;flex-direction:column;min-height:100vh}
[dir=rtl] .main-wrap{margin-left:0;margin-right:var(--sidebar-w)}
.topbar{height:var(--header-h);background:var(--white);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 24px;gap:16px;position:sticky;top:0;z-index:100}
.topbar-title{font-size:1rem;font-weight:600;flex:1}
.topbar-actions{display:flex;align-items:center;gap:12px}
.btn-icon{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border:none;background:none;cursor:pointer;border-radius:8px;color:var(--muted);transition:background var(--transition);position:relative;font-size:.95rem}
.btn-icon:hover{background:var(--bg);color:var(--dark)}
.notif-dot{position:absolute;top:6px;right:6px;width:7px;height:7px;background:var(--danger);border-radius:50%;border:2px solid var(--white)}
.avatar-btn{display:flex;align-items:center;gap:8px;background:none;border:none;cursor:pointer;padding:4px 8px;border-radius:8px;transition:background var(--transition)}
.avatar-btn:hover{background:var(--bg)}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:700;flex-shrink:0}
.avatar-name{font-size:.85rem;font-weight:500}
.dropdown{position:relative}
.dropdown-menu{position:absolute;top:calc(100% + 6px);right:0;min-width:180px;background:var(--white);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);z-index:300;display:none;overflow:hidden}
.dropdown-menu.show{display:block}
.dropdown-item{display:flex;align-items:center;gap:8px;padding:9px 16px;font-size:.85rem;color:var(--dark);text-decoration:none;cursor:pointer;background:none;border:none;width:100%;transition:background var(--transition)}
.dropdown-item:hover{background:var(--bg)}
.dropdown-divider{border:none;border-top:1px solid var(--border);margin:4px 0}
.content{padding:24px;flex:1}
.card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.card-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:12px}
.card-title{font-size:.95rem;font-weight:600}
.card-body{padding:20px}
.card-footer{padding:14px 20px;border-top:1px solid var(--border);background:var(--bg);border-radius:0 0 var(--radius) var(--radius)}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}
.stat-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:20px;display:flex;align-items:center;gap:16px;box-shadow:var(--shadow)}
.stat-icon{width:52px;height:52px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.4rem;flex-shrink:0}
.stat-icon.blue{background:#dbeafe;color:var(--info)}.stat-icon.green{background:#d1fae5;color:var(--success)}.stat-icon.yellow{background:#fef3c7;color:var(--warning)}.stat-icon.purple{background:var(--primary-light);color:var(--primary)}.stat-icon.red{background:#fee2e2;color:var(--danger)}.stat-icon.teal{background:#cffafe;color:var(--secondary)}
.stat-value{font-size:1.6rem;font-weight:700;line-height:1}
.stat-label{font-size:.8rem;color:var(--muted);margin-top:2px}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}
thead th{background:var(--bg);padding:10px 14px;font-size:.78rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);border-bottom:2px solid var(--border);white-space:nowrap;text-align:left}
[dir=rtl] thead th{text-align:right}
tbody td{padding:12px 14px;border-bottom:1px solid var(--border);font-size:.875rem;vertical-align:middle}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:#fafbfc}
.form-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.form-group{display:flex;flex-direction:column;gap:5px}
.form-group.full{grid-column:1/-1}
label{font-size:.82rem;font-weight:500;color:var(--muted)}
input,select,textarea{padding:9px 12px;border:1.5px solid var(--border);border-radius:7px;font-size:.875rem;font-family:var(--font);color:var(--dark);background:var(--white);transition:border-color var(--transition),box-shadow var(--transition);width:100%}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.1)}
.form-error{font-size:.78rem;color:var(--danger);margin-top:2px}
.form-hint{font-size:.78rem;color:var(--muted)}
textarea{resize:vertical;min-height:80px}
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;font-size:.875rem;font-weight:500;border-radius:7px;border:1.5px solid transparent;cursor:pointer;text-decoration:none;transition:all var(--transition);white-space:nowrap;font-family:var(--font)}
.btn:disabled{opacity:.6;cursor:not-allowed}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark)}
.btn-secondary{background:var(--white);color:var(--dark);border-color:var(--border)}.btn-secondary:hover{background:var(--bg)}
.btn-success{background:var(--success);color:#fff;border-color:var(--success)}
.btn-danger{background:var(--danger);color:#fff;border-color:var(--danger)}
.btn-warning{background:var(--warning);color:#fff;border-color:var(--warning)}
.btn-info{background:var(--info);color:#fff;border-color:var(--info)}
.btn-sm{padding:5px 10px;font-size:.8rem}.btn-xs{padding:3px 8px;font-size:.75rem}.btn-block{width:100%;justify-content:center}
.badge{display:inline-flex;align-items:center;padding:3px 9px;font-size:.72rem;font-weight:600;border-radius:20px}
.badge-success{background:#d1fae5;color:#065f46}.badge-warning{background:#fef3c7;color:#92400e}.badge-danger{background:#fee2e2;color:#991b1b}.badge-info{background:#dbeafe;color:#1e40af}.badge-secondary{background:#f1f5f9;color:var(--muted)}.badge-primary{background:var(--primary-light);color:var(--primary-dark)}
.alert{padding:12px 16px;border-radius:var(--radius);font-size:.875rem;display:flex;align-items:flex-start;gap:10px;margin-bottom:16px;border:1px solid transparent}
.alert-success{background:#d1fae5;color:#065f46;border-color:#a7f3d0}.alert-error{background:#fee2e2;color:#991b1b;border-color:#fecaca}.alert-warning{background:#fef3c7;color:#92400e;border-color:#fde68a}.alert-info{background:#dbeafe;color:#1e40af;border-color:#bfdbfe}
.pagination-nav{margin-top:16px}.pagination{display:flex;list-style:none;gap:4px;flex-wrap:wrap}
.page-item .page-link{display:block;padding:6px 12px;border:1px solid var(--border);border-radius:6px;font-size:.8rem;color:var(--dark);text-decoration:none;transition:all var(--transition)}
.page-item.active .page-link{background:var(--primary);color:#fff;border-color:var(--primary)}
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;z-index:500;opacity:0;pointer-events:none;transition:opacity var(--transition)}
.modal-overlay.show{opacity:1;pointer-events:auto}
.modal{background:var(--white);border-radius:14px;box-shadow:var(--shadow-lg);width:90%;max-width:520px;max-height:90vh;overflow-y:auto;transform:translateY(12px);transition:transform var(--transition)}
.modal-overlay.show .modal{transform:translateY(0)}
.modal-header{padding:18px 20px 14px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.modal-title{font-size:1rem;font-weight:600}.modal-close{background:none;border:none;cursor:pointer;color:var(--muted);font-size:1.1rem;padding:4px;border-radius:4px}
.modal-body{padding:20px}.modal-footer{padding:14px 20px;border-top:1px solid var(--border);display:flex;gap:8px;justify-content:flex-end}
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1e293b 0%,#312e81 100%);padding:24px}
.auth-card{background:var(--white);border-radius:16px;padding:40px;width:100%;max-width:420px;box-shadow:var(--shadow-lg)}
.auth-logo{text-align:center;margin-bottom:28px}
.auth-logo-icon{width:56px;height:56px;background:var(--primary);border-radius:14px;display:inline-flex;align-items:center;justify-content:center;font-size:1.6rem;color:#fff;font-weight:800;margin-bottom:12px}
.auth-title{font-size:1.3rem;font-weight:700;text-align:center}.auth-subtitle{font-size:.85rem;color:var(--muted);text-align:center;margin-top:4px}
.d-flex{display:flex}.align-items-center{align-items:center}.justify-content-between{justify-content:space-between}
.gap-2{gap:8px}.gap-3{gap:12px}.mt-0{margin-top:0}.mb-4{margin-bottom:16px}.mb-6{margin-bottom:24px}
.text-muted{color:var(--muted)}.text-danger{color:var(--danger)}.text-success{color:var(--success)}.text-center{text-align:center}.fw-bold{font-weight:700}.fw-semi{font-weight:600}.fs-sm{font-size:.8rem}.w-100{width:100%}
.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;gap:12px;flex-wrap:wrap}
.page-header h1{font-size:1.2rem;font-weight:700}
.breadcrumb{font-size:.8rem;color:var(--muted);display:flex;align-items:center;gap:6px}
.breadcrumb a{color:var(--primary);text-decoration:none}
.search-bar{display:flex;gap:8px;flex-wrap:wrap;padding:14px 20px;background:var(--bg);border-bottom:1px solid var(--border)}
.search-bar input,.search-bar select{max-width:200px}
.empty-state{text-align:center;padding:48px 24px;color:var(--muted)}
.empty-state-icon{font-size:2.5rem;margin-bottom:12px;opacity:.4}
.progress{background:var(--border);border-radius:20px;height:6px;overflow:hidden}
.progress-bar{height:100%;border-radius:20px;background:var(--primary);transition:width .3s}
.att-grid{display:flex;flex-wrap:wrap;gap:6px}
.att-day{width:28px;height:28px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:600;cursor:pointer}
.att-present{background:#d1fae5;color:#065f46}.att-absent{background:#fee2e2;color:#991b1b}.att-holiday{background:var(--bg);color:var(--muted)}
.timetable-grid th,.timetable-grid td{min-width:120px;text-align:center}
.tt-cell{background:var(--primary-light);color:var(--primary-dark);border-radius:6px;padding:6px 8px;font-size:.78rem;font-weight:500}
@media(max-width:768px){.sidebar{transform:translateX(-100%)}[dir=rtl] .sidebar{transform:translateX(100%)}.sidebar.open{transform:translateX(0)}.main-wrap{margin-left:0!important}.stat-grid{grid-template-columns:1fr 1fr}.form-grid{grid-template-columns:1fr}.content{padding:16px}.topbar{padding:0 16px}}