:root{--nav:#152746;--nav-soft:#20385e;--primary:#1769e0;--primary-soft:#eaf2ff;--text:#162238;--muted:#697a94;--surface:#fff;--page:#f4f7fb;--border:#e1e8f1;--shadow:0 10px 30px rgba(27,53,94,.08)}*{box-sizing:border-box}body{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:var(--page);font-size:.94rem}.app-shell{min-height:100vh}.sidebar{width:270px;background:linear-gradient(180deg,var(--nav),#10203c);color:#fff;display:flex;flex-direction:column;position:fixed;z-index:1040;inset:0 auto 0 0}.brand{height:86px;padding:0 23px;display:flex;align-items:center;gap:11px;color:#fff;text-decoration:none;font-weight:800;font-size:1.16rem;border-bottom:1px solid rgba(255,255,255,.09)}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:rgba(255,255,255,.13);color:#ffd36b}.sidebar-nav{padding:17px 13px}.sidebar-nav a{display:flex;align-items:center;gap:12px;color:#c7d4e8;text-decoration:none;padding:11px 13px;border-radius:9px;margin:3px 0;transition:.18s ease;font-weight:500}.sidebar-nav a i{width:18px;text-align:center;font-size:1rem}.sidebar-nav a:hover{background:rgba(255,255,255,.09);color:#fff;transform:translateX(2px)}.sidebar-nav a.active{background:#fff;color:#194e9f;font-weight:700;box-shadow:0 5px 14px rgba(0,0,0,.12)}.sidebar-nav .disabled{opacity:.4;pointer-events:none}.nav-label{display:block;color:#8498b8;font-size:.68rem;text-transform:uppercase;letter-spacing:.11em;padding:20px 13px 7px}.sidebar-user{margin-top:auto;display:flex;align-items:center;gap:10px;padding:17px 18px;border-top:1px solid rgba(255,255,255,.1)}.user-avatar{width:37px;height:37px;display:grid;place-items:center;border-radius:50%;background:#f5b840;color:#172746;font-weight:800}.sidebar-user 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tr:hover{background:#f8fbff}.badge{border-radius:6px;padding:.43em .63em;font-weight:650}.page-link{color:#2467be;border-color:#dfe7f0;border-radius:7px!important;margin:0 2px;font-size:.85rem}.page-item.active .page-link{background:var(--primary);border-color:var(--primary)}.pagination{flex-wrap:wrap;gap:2px}.student-photo{width:38px;height:38px;object-fit:cover;border-radius:10px;background:#e9eef5}.search-select{position:relative}.search-select select{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.search-select-trigger{width:100%;min-height:42px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 12px;border:1px solid #d8e1ec;border-radius:8px;background:#fff;color:#27364b;text-align:left;transition:.18s}.search-select-trigger:hover{border-color:#8ab4f8}.search-select.open .search-select-trigger{border-color:#1769e0;box-shadow:0 0 0 .22rem rgba(23,105,224,.12)}.search-select-chevron{color:#5a6b80;transition:.18s}.search-select.open .search-select-chevron{transform:rotate(180deg)}.search-select-panel{position:absolute;z-index:1055;top:calc(100% + 7px);left:0;right:0;padding:10px;background:#fff;border:1px solid #d9e2f0;border-radius:12px;box-shadow:0 14px 32px rgba(26,46,78,.18);display:none}.search-select.open .search-select-panel{display:block;animation:select-open .14s ease-out}.search-select-search{position:relative;margin-bottom:8px}.search-select-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;color:#62738a}.search-select-search input{width:100%;height:39px;padding:8px 11px 8px 36px;border:1px solid #d3dce9;border-radius:8px;outline:0}.search-select-search input:focus{border-color:#1769e0;box-shadow:0 0 0 .2rem rgba(23,105,224,.12)}.search-select-options{max-height:230px;overflow-y:auto}.search-select-options::-webkit-scrollbar{width:7px}.search-select-options::-webkit-scrollbar-thumb{background:#c5d1df;border-radius:20px}.search-select-option{width:100%;display:flex;align-items:center;padding:10px 11px;border:0;border-radius:8px;background:transparent;color:#26364a;text-align:left}.search-select-option:hover,.search-select-option:focus{background:#edf4ff;color:#075fd8;outline:0}.search-select-option.selected{background:#e7f1ff;color:#075fd8;font-weight:700}.search-select-option.selected:after{content:'✓';margin-left:auto}.search-select-empty{padding:14px 10px;color:#718096;text-align:center;font-size:.9rem}@keyframes select-open{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.login-page{background:linear-gradient(135deg,#152746,#274c77);min-height:100vh;display:grid;place-items:center}.login-card{width:min(420px,92vw);border:0;border-radius:18px;box-shadow:0 18px 60px #0004}@media(max-width:992px){.sidebar{width:240px}.content{margin-left:240px;width:calc(100% - 240px);padding:0 22px 28px}}@media(max-width:768px){.sidebar{width:272px;transform:translateX(-100%);transition:.22s;box-shadow:10px 0 28px rgba(12,30,57,.2)}.sidebar.open{transform:translateX(0)}.content{margin:0;width:100%;padding:0 15px 26px}.topbar{min-height:78px}.menu-toggle{display:inline-grid;place-items:center;width:40px;height:40px}.topbar h1{font-size:1.15rem}.topbar-date{display:none}.table-card{padding:15px}.table>:not(caption)>*>*{padding:.7rem .55rem}.metric .value{font-size:1.4rem}}
.theme-toggle{width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--border);border-radius:9px;background:var(--surface);color:#52657e;transition:.18s}.theme-toggle:hover{color:var(--primary);border-color:#9fc1ee;transform:translateY(-1px)}
html[data-theme="dark"]{--text:#e7edf7;--muted:#a2b0c4;--surface:#17243a;--page:#101a2b;--border:#2b3b53;--shadow:0 10px 30px rgba(0,0,0,.18)}html[data-theme="dark"] .topbar-date,html[data-theme="dark"] .theme-toggle,html[data-theme="dark"] .form-control,html[data-theme="dark"] .form-select,html[data-theme="dark"] .search-select-trigger,html[data-theme="dark"] .search-select-panel,html[data-theme="dark"] .search-select-search input{background:#17243a;color:#e7edf7;border-color:#31445f}html[data-theme="dark"] .form-label{color:#c7d3e5}html[data-theme="dark"] .table thead th{background:#1b2a42;color:#aebcd0;border-color:#2b3b53}html[data-theme="dark"] .table>:not(caption)>*>*{border-color:#2b3b53}html[data-theme="dark"] .table tbody tr:hover{background:#1d2d46}html[data-theme="dark"] .text-muted,html[data-theme="dark"] .dashboard-card-subtitle{color:#a2b0c4!important}html[data-theme="dark"] .search-select-option{color:#e7edf7}html[data-theme="dark"] .search-select-option:hover{background:#243855;color:#8fc1ff}html[data-theme="dark"] .search-select-option.selected{background:#213d63;color:#9bc8ff}html[data-theme="dark"] .page-link{background:#17243a;border-color:#31445f;color:#9bc8ff}html[data-theme="dark"] .sidebar-nav a.active{background:#263b59;color:#fff}html[data-theme="dark"] .btn-light{background:#263750;border-color:#334864;color:#e8eef9}
.brand-logo{width:34px;height:34px;display:grid;place-items:center;border-radius:9px;background:#fff;overflow:hidden}.brand-logo img{width:100%;height:100%;object-fit:contain}.settings-icon{width:48px;height:48px;display:grid;place-items:center;border-radius:12px;background:#eaf2ff;color:#1769e0;font-size:1.35rem}.logo-preview{min-height:130px;border:1px dashed #b9c9df;border-radius:11px;background:#f8fbff;display:flex;align-items:center;justify-content:center;gap:10px;color:#718096}.logo-preview img{max-height:100px;max-width:230px;object-fit:contain}
.sidebar-user{flex-direction:column;align-items:stretch}.user-line{width:100%;display:flex;align-items:center;gap:10px}.logout-button{width:100%;display:flex;align-items:center;justify-content:center;gap:6px;color:#fff;text-decoration:none;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:10px;padding:9px 12px;font-weight:700;font-size:.84rem;transition:.18s}.logout-button:hover{color:#fff;background:#dc3545;border-color:#dc3545;transform:translateY(-1px)}