:root{--color-primary:#dc2626;--color-primary-hover:#bf1b1b;--color-primary-dark:#8b1a1a;--color-primary-darker:#6b1414;--color-primary-deepest:#4a0e0e;--color-primary-soft:#fef2f2;--color-text:#101828;--color-text-muted:#4a5565;--color-text-light:#6a7282;--color-text-faint:#99a1af;--color-bg:#fff;--color-surface:#f9fafb;--color-surface-2:#f0f0f0;--color-border:#d9d9d9;--color-border-light:#e5e7eb;--color-success:#00c758;--color-success-bright:#25d366;--color-danger:#dc2626;--color-warning:#f59e0b;--font-sans:"Poppins", Arial, Helvetica, sans-serif;--font-heading:"Poppins", Arial, Helvetica, sans-serif;--fs-xs:12px;--fs-sm:14px;--fs-base:16px;--fs-lg:18px;--fs-xl:20px;--fs-2xl:24px;--fs-3xl:30px;--fs-4xl:36px;--fs-5xl:48px;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px;--radius-full:9999px;--shadow-sm:0 1px 2px #1018280d;--shadow-md:0 4px 6px -1px #1018281a, 0 2px 4px -2px #1018280d;--shadow-lg:0 10px 20px -3px #1018281a, 0 4px 6px -4px #1018280d;--shadow-red:0 6px 16px -4px #dc262659;--transition-fast:.15s ease;--transition-base:.25s ease;font-family:var(--font-sans);font-size:var(--fs-base);color:var(--color-text);background:var(--color-bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5}*{box-sizing:border-box}html,body{min-height:100vh;margin:0;padding:0}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg)}#root{flex-direction:column;min-height:100vh;display:flex}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);color:var(--color-text);margin:0 0 var(--space-4) 0;letter-spacing:-.01em;font-weight:700;line-height:1.2}h1{font-size:var(--fs-4xl);letter-spacing:-.02em;font-weight:800}h2{font-size:var(--fs-3xl);font-weight:700}h3{font-size:var(--fs-2xl);font-weight:600}h4{font-size:var(--fs-xl);font-weight:600}p{margin:0 0 var(--space-4) 0;color:var(--color-text-muted)}a{color:var(--color-primary);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--color-primary-hover)}.btn{justify-content:center;align-items:center;gap:var(--space-2);font-family:var(--font-sans);font-size:var(--fs-base);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);border:none;padding:12px 24px;font-weight:600;line-height:1;text-decoration:none;display:inline-flex}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff;border:1.5px solid var(--color-primary);box-shadow:var(--shadow-red)}.btn-primary:hover:not(:disabled){color:var(--color-primary);border-color:var(--color-primary);background:#fff;transform:translateY(-1px)}.btn-secondary{background:var(--color-bg);color:var(--color-primary);border:1.5px solid var(--color-primary)}.btn-secondary:hover:not(:disabled){background:var(--color-primary-soft)}.btn-ghost{color:var(--color-text);border:1.5px solid var(--color-border);background:0 0}.btn-ghost:hover:not(:disabled){background:var(--color-surface-2)}.btn-sm{font-size:var(--fs-sm);padding:8px 16px}.btn-lg{font-size:var(--fs-lg);padding:14px 28px}.input,.select,.textarea{width:100%;font-family:var(--font-sans);font-size:var(--fs-base);color:var(--color-text);background:var(--color-bg);border:1.5px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--transition-fast), box-shadow var(--transition-fast);outline:none;padding:11px 14px}.input:focus,.select:focus,.textarea:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #dc26261f}.label{font-size:var(--fs-sm);color:var(--color-text);margin-bottom:var(--space-2);font-weight:600;display:block}.card{background:var(--color-bg);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);padding:var(--space-6);box-shadow:var(--shadow-sm)}.brand-text{color:var(--color-primary);font-weight:700}.divider-red{background:var(--color-primary);height:4px;margin:var(--space-4) 0;border:none;border-radius:2px}.container{width:100%;max-width:1200px;padding:0 var(--space-6);margin:0 auto}.text-center{text-align:center}.text-muted{color:var(--color-text-muted)}.text-primary{color:var(--color-primary)}.auth-layout{background:radial-gradient(circle at 0% 0%, #dc262612, transparent 45%), radial-gradient(circle at 100% 100%, #dc26260d, transparent 45%), var(--color-surface);flex-direction:column;justify-content:center;align-items:center;min-height:100vh;padding:40px 32px;display:flex}.auth-card{background:var(--color-bg);border:1px solid var(--color-border-light);border-radius:var(--radius-xl);width:520px;max-width:100%;box-shadow:var(--shadow-lg);text-align:center;padding:40px 48px;position:relative}.auth-card.wide{width:720px}.auth-back{color:var(--color-text-muted);border-radius:var(--radius-md);transition:all var(--transition-fast);border:1px solid #0000;align-items:center;gap:6px;padding:8px 14px 8px 10px;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex;position:absolute;top:20px;left:20px}.auth-back:hover{color:var(--color-primary);background:var(--color-primary-soft);border-color:#dc262633}.auth-back svg{transition:transform var(--transition-fast)}.auth-back:hover svg{transform:translate(-2px)}.auth-brand{color:var(--color-text);align-items:center;gap:12px;margin-top:8px;text-decoration:none;display:inline-flex}.auth-brand img{width:auto;height:52px}.auth-brand-text{letter-spacing:-.01em;flex-direction:column;align-items:flex-start;font-size:22px;font-weight:700;line-height:1.1;display:flex}.auth-brand-text .accent{color:var(--color-primary)}.auth-brand-text .brand-sub{color:var(--color-text-light);letter-spacing:.12em;text-transform:uppercase;margin-top:4px;font-size:11px;font-weight:600}.auth-title{margin:0 0 8px;font-size:26px;font-weight:700}.auth-subtitle{color:var(--color-text-muted);margin:0 0 28px;font-size:14px}.auth-body{text-align:left}.auth-footer{border-top:1px solid var(--color-border-light);color:var(--color-text-muted);text-align:center;margin-top:24px;padding-top:18px;font-size:14px}.auth-copyright{color:var(--color-text-light);text-align:center;margin-top:24px;font-size:12px}.form-row{margin-bottom:16px}.form-row.two-col{grid-template-columns:1fr 1fr;gap:16px;display:grid}.form-error{color:#991b1b;border-radius:var(--radius-md);background:#fef2f2;border:1px solid #fecaca;margin-bottom:16px;padding:10px 14px;font-size:14px}.form-success{color:#166534;border-radius:var(--radius-md);background:#f0fdf4;border:1px solid #bbf7d0;margin-bottom:16px;padding:10px 14px;font-size:14px}.form-submit{width:100%;margin-top:6px}.password-wrap{position:relative}.password-toggle{color:var(--color-text-light);cursor:pointer;border-radius:var(--radius-sm);background:0 0;border:none;padding:6px 10px;font-size:13px;font-weight:600;position:absolute;top:50%;right:8px;transform:translateY(-50%)}.password-toggle:hover{color:var(--color-primary);background:var(--color-primary-soft)}.field-hint{color:var(--color-text-light);margin-top:4px;font-size:12px}.auth-card.register-card{width:640px}.photo-upload{align-items:flex-start;gap:20px;display:flex}.photo-preview{border:2px dashed var(--color-border);background:var(--color-surface);border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:110px;height:130px;display:flex;position:relative;overflow:hidden}.photo-preview img{object-fit:cover;width:100%;height:100%}.photo-placeholder{color:var(--color-text-light);font-size:12px}.photo-uploading{color:var(--color-primary);background:#ffffffe6;justify-content:center;align-items:center;font-size:13px;font-weight:600;display:flex;position:absolute;inset:0}.photo-success{color:#fff;text-align:center;letter-spacing:.04em;background:#16a34aeb;padding:4px;font-size:11px;font-weight:700;position:absolute;bottom:0;left:0;right:0}.photo-controls{flex-direction:column;flex:1;gap:8px;display:flex}.photo-controls .btn{align-self:flex-start}@media (width<=768px){.auth-layout{padding:24px 16px}.auth-card,.auth-card.wide,.auth-card.register-card{width:100%;padding:32px 24px}.auth-back{padding:6px 12px 6px 8px;font-size:13px;top:14px;left:14px}}@media (width<=520px){.auth-card,.auth-card.wide,.auth-card.register-card{padding:28px 20px}.auth-brand img{height:44px}.auth-brand-text{font-size:18px}.auth-title{font-size:22px}.form-row.two-col{grid-template-columns:1fr;gap:0}.form-row.two-col>div{margin-bottom:16px}.form-row.two-col>div:last-child{margin-bottom:0}}.success-page{background:radial-gradient(circle at 0% 0%, #dc26260f, transparent 40%), radial-gradient(circle at 100% 100%, #dc26260d, transparent 40%), var(--color-surface);justify-content:center;align-items:center;min-height:100vh;padding:40px 24px;display:flex}.success-card{background:var(--color-bg);border-radius:var(--radius-xl);border:1px solid var(--color-border-light);width:100%;max-width:580px;box-shadow:var(--shadow-lg);text-align:center;padding:44px 48px 36px}.success-icon{color:#16a34a;background:#dcfce7;border-radius:50%;justify-content:center;align-items:center;width:72px;height:72px;margin:0 auto 16px;font-size:42px;font-weight:800;display:flex}.success-title{color:var(--color-text);margin:0 0 8px;font-size:28px;font-weight:800}.success-sub{color:var(--color-text-muted);margin:0 0 24px;font-size:15px}.success-photo-wrap{justify-content:center;margin-bottom:20px;display:flex}.success-photo{object-fit:cover;border:2px solid var(--color-primary);width:100px;height:120px;box-shadow:var(--shadow-md);border-radius:8px}.reg-card{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-md);justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;padding:12px 18px;display:flex}.reg-card-label{color:var(--color-text-muted);letter-spacing:.04em;font-size:12px;font-weight:600}.reg-card-value{color:var(--color-primary);letter-spacing:.05em;font-variant-numeric:tabular-nums;font-family:Consolas,Menlo,monospace;font-size:16px;font-weight:700}.success-info{text-align:left;background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-md);margin-bottom:20px;padding:16px 20px}.success-info-row{border-bottom:1px solid var(--color-border-light);justify-content:space-between;padding:6px 0;font-size:14px;display:flex}.success-info-row:last-child{border-bottom:none}.success-info-row span{color:var(--color-text-muted)}.password-note{border-radius:var(--radius-md);text-align:left;color:#78350f;background:#fef3c7;border:1px solid #fcd34d;margin-bottom:24px;padding:14px 18px}.password-note-title{margin-bottom:4px;font-size:14px;font-weight:700}.password-note p{color:#78350f;margin:0;font-size:13px;line-height:1.5}.success-actions{gap:12px;margin-bottom:16px;display:flex}.success-foot{color:var(--color-text-light);margin:0;font-size:12px}@media (width<=600px){.success-card{padding:32px 24px}.success-actions{flex-direction:column}}.student-page{max-width:1000px;margin:0 auto;padding:32px 40px}.greeting h1{margin:0 0 4px;font-size:28px}.greeting .subtitle{color:var(--color-text-muted);margin:0 0 24px;font-size:15px}.exam-card{border:1px solid var(--color-border-light);border-radius:var(--radius-xl);background:var(--color-bg);box-shadow:var(--shadow-md);padding:32px 36px}.exam-card.waiting{background:linear-gradient(180deg, #fffbeb 0%, var(--color-bg) 60%);border-color:#fde68a}.exam-card.assigned{background:linear-gradient(180deg, var(--color-primary-soft) 0%, var(--color-bg) 60%);border-color:#dc262640}.exam-card.submitted{background:linear-gradient(180deg, #f0fdf4 0%, var(--color-bg) 60%);border-color:#bbf7d0}.exam-state-label{text-transform:uppercase;letter-spacing:.08em;border-radius:var(--radius-full);margin-bottom:16px;padding:4px 12px;font-size:12px;font-weight:700;display:inline-block}.exam-state-label.waiting{color:#92400e;background:#fef3c7}.exam-state-label.assigned{background:var(--color-primary);color:#fff}.exam-state-label.submitted{background:var(--color-success-bright);color:#fff}.exam-card h2{margin:0 0 12px;font-size:24px}.exam-card p{font-size:15px;line-height:1.6}.exam-info{background:var(--color-surface);border-radius:var(--radius-lg);grid-template-columns:repeat(2,1fr);gap:16px;margin:24px 0;padding:20px;display:grid}.exam-info-row{justify-content:space-between;font-size:14px;display:flex}.exam-info-row .label{color:var(--color-text-muted)}.exam-info-row .value{color:var(--color-text);font-weight:600}.score-display{color:var(--color-primary);margin:12px 0;font-size:56px;font-weight:800;line-height:1}.score-display .out-of{color:var(--color-text-muted);font-size:22px;font-weight:600}.profile-card{background:var(--color-bg);border:1px solid var(--color-border-light);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);grid-template-columns:140px 1fr;gap:24px;margin-bottom:20px;padding:24px 28px;display:grid}.profile-photo{object-fit:cover;border:2px solid var(--color-primary);border-radius:8px;width:130px;height:156px}.profile-photo.placeholder{background:var(--color-surface);color:var(--color-text-light);border:2px dashed var(--color-border);justify-content:center;align-items:center;font-size:13px;display:flex}.profile-info{min-width:0}.profile-name{color:var(--color-text);margin:0 0 4px;font-size:22px;font-weight:700}.profile-reg{color:var(--color-primary);letter-spacing:.05em;background:var(--color-primary-soft);border-radius:var(--radius-md);margin-bottom:16px;padding:4px 10px;font-family:Consolas,Menlo,monospace;font-size:14px;font-weight:700;display:inline-block}.profile-grid{grid-template-columns:repeat(2,1fr);gap:4px 24px;font-size:14px;display:grid}.profile-grid>div{border-bottom:1px solid var(--color-border-light);gap:10px;min-width:0;padding:7px 0;display:flex}.profile-grid>div.span-2{grid-column:1/-1}.profile-grid .label{color:var(--color-text-muted);flex-shrink:0;min-width:110px}.profile-grid .value{color:var(--color-text);word-break:break-word;flex:1;font-weight:500}@media (width<=700px){.student-page{padding:20px 16px}.exam-card{padding:24px}.exam-info{grid-template-columns:1fr}.profile-card{text-align:center;grid-template-columns:1fr;padding:20px}.profile-photo{margin:0 auto}.profile-info{text-align:left}.profile-grid{grid-template-columns:1fr}}.instructions-page{max-width:960px;margin:0 auto;padding:32px 40px}.instructions-card{background:var(--color-bg);border:1px solid var(--color-border-light);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);padding:36px 44px}.instructions-header{text-align:center;margin-bottom:28px}.instructions-header .badge{background:var(--color-primary);color:#fff;border-radius:var(--radius-full);letter-spacing:.06em;text-transform:uppercase;margin-bottom:12px;padding:6px 16px;font-size:13px;font-weight:700;display:inline-block}.instructions-header h1{margin:0 0 4px;font-size:30px}.instructions-header .subtitle{color:var(--color-text-muted);margin:0;font-size:15px}.instructions-divider{background:var(--color-primary);border:none;border-radius:2px;width:80px;height:3px;margin:16px auto 0}.mark-dist{margin-top:28px;margin-bottom:28px}.mark-dist h2{color:var(--color-text);margin:0 0 12px;font-size:18px}.mark-table{border-collapse:collapse;background:var(--color-surface);border-radius:var(--radius-md);width:100%;font-size:14px;overflow:hidden}.mark-table th,.mark-table td{text-align:left;border-bottom:1px solid var(--color-border-light);padding:12px 16px}.mark-table th{color:var(--color-text);text-transform:uppercase;letter-spacing:.05em;background:#dc26260d;font-size:12px;font-weight:600}.mark-table .col-num{text-align:center;width:60px;color:var(--color-text-muted)}.mark-table .col-count{text-align:center;width:120px;font-weight:600}.mark-table tfoot td{background:var(--color-surface-2);border-bottom:none;font-size:15px;font-weight:700}.summary-row{flex-wrap:wrap;justify-content:center;gap:12px;margin-bottom:28px;display:flex}.summary-chip{background:var(--color-primary-soft);color:var(--color-primary-dark);border-radius:var(--radius-md);border:1px solid #dc262633;flex-direction:column;align-items:center;min-width:140px;padding:10px 18px;font-size:14px;font-weight:600;display:flex}.summary-chip .label{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.06em;font-size:11px;font-weight:600}.summary-chip .value{color:var(--color-text);margin-top:2px;font-size:20px;font-weight:700}.instructions-list{counter-reset:instr;margin:0 0 24px;padding:0;list-style:none}.instructions-list li{color:var(--color-text);border-bottom:1px solid var(--color-border-light);counter-increment:instr;padding:12px 0 12px 44px;font-size:15px;line-height:1.55;position:relative}.instructions-list li:last-child{border-bottom:none}.instructions-list li:before{content:counter(instr);background:var(--color-primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;font-size:13px;font-weight:700;display:flex;position:absolute;top:12px;left:0}.instructions-list li strong{color:var(--color-primary-dark)}.important-alert{color:#78350f;border-radius:var(--radius-md);background:#fef3c7;border:1px solid #fcd34d;margin:24px 0;padding:16px 20px;font-size:14px;line-height:1.6}.important-alert .alert-title{align-items:center;gap:6px;margin-bottom:4px;font-weight:700;display:flex}.confirm-row{background:var(--color-surface);border-radius:var(--radius-md);border:1px solid var(--color-border-light);margin-top:28px;padding:20px 24px}.confirm-checkbox{cursor:pointer;color:var(--color-text);align-items:flex-start;gap:12px;margin-bottom:16px;font-size:15px;display:flex}.confirm-checkbox input{width:20px;height:20px;accent-color:var(--color-primary);cursor:pointer;flex-shrink:0;margin:2px 0 0}.confirm-checkbox.checked{color:var(--color-primary-dark);font-weight:600}.action-row{align-items:center;gap:12px;display:flex}@media (width<=700px){.instructions-page{padding:16px}.instructions-card{padding:24px 20px}.instructions-header h1{font-size:24px}.instructions-list li{padding-left:36px;font-size:14px}.instructions-list li:before{width:24px;height:24px;font-size:12px}.summary-chip{min-width:100px;padding:8px 12px}}.qx-table-wrap{margin:16px 0;overflow-x:auto}.qx-table{border-collapse:collapse;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:14px;overflow:hidden}.qx-table th,.qx-table td{text-align:left;border-bottom:1px solid var(--color-border-light);border-right:1px solid var(--color-border-light);padding:10px 16px}.qx-table th:last-child,.qx-table td:last-child{border-right:none}.qx-table tr:last-child td{border-bottom:none}.qx-table th{background:var(--color-surface);color:var(--color-text);font-size:13px;font-weight:600}.qx-venn{flex-direction:column;align-items:center;gap:8px;margin:16px 0;display:flex}.qx-venn-svg{width:320px;max-width:100%;height:auto}.qx-venn-circle{fill:#dc262626;stroke:var(--color-primary);stroke-width:2px}.qx-venn-circle.qx-venn-right{fill:#2563eb26;stroke:#2563eb}.qx-venn-num{font-family:var(--font-sans);text-anchor:middle;fill:var(--color-text);font-size:22px;font-weight:700}.qx-venn-both{fill:var(--color-primary-dark)}.qx-venn-label{text-anchor:middle;fill:var(--color-text);font-size:14px;font-weight:600}.qx-venn-both-label{text-anchor:middle;fill:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em;font-size:11px}.qx-venn-note{color:var(--color-text-muted);background:var(--color-surface);border-radius:var(--radius-md);flex-wrap:wrap;gap:16px;padding:8px 14px;font-size:13px;display:flex}.qx-bars{background:var(--color-surface);border-radius:var(--radius-md);border:1px solid var(--color-border-light);flex-direction:column;gap:8px;margin:16px 0;padding:16px;display:flex}.qx-bar-row{grid-template-columns:90px 1fr 100px;align-items:center;gap:12px;font-size:13px;display:grid}.qx-bar-label{color:var(--color-text);font-weight:600}.qx-bar-track{background:#dc262614;border-radius:4px;height:22px;overflow:hidden}.qx-bar-fill{background:var(--color-primary);border-radius:4px;min-width:4px;height:100%;transition:width .3s}.qx-bar-value{color:var(--color-text);text-align:right;font-variant-numeric:tabular-nums;font-weight:600}.qx-grid{border:2px solid var(--color-border);border-radius:var(--radius-md);flex-direction:column;gap:0;margin:16px 0;display:inline-flex;overflow:hidden}.qx-grid-row{display:flex}.qx-grid-cell{background:var(--color-bg);border-right:1px solid var(--color-border);border-bottom:1px solid var(--color-border);width:56px;height:56px;color:var(--color-text);justify-content:center;align-items:center;font-size:18px;font-weight:600;display:flex}.qx-grid-row:last-child .qx-grid-cell{border-bottom:none}.qx-grid-row .qx-grid-cell:last-child{border-right:none}.qx-grid-cell-q{background:var(--color-primary-soft);color:var(--color-primary-dark);font-size:22px}.qx-labeled-grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin:16px 0;display:grid}.qx-labeled-grid-item{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-md);padding:12px}.qx-labeled-grid-label{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:6px;font-size:12px;font-weight:600}.qx-labeled-grid-row{display:flex}.qx-labeled-grid-row .qx-grid-cell{width:40px;height:40px;font-size:16px}.exam-shell{background:var(--color-surface);-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;-webkit-user-drag:none;flex-direction:column;min-height:100vh;display:flex}.exam-shell input,.exam-shell textarea{-webkit-user-select:text;user-select:text}.exam-shell img{-webkit-user-drag:none;pointer-events:auto}.fs-overlay{z-index:500;cursor:pointer;background:#dc2626eb;justify-content:center;align-items:center;padding:24px;animation:.18s fsIn;display:flex;position:fixed;inset:0}@keyframes fsIn{0%{opacity:0}to{opacity:1}}.fs-card{border-radius:var(--radius-xl);text-align:center;cursor:default;background:#fff;max-width:480px;padding:36px 44px;box-shadow:0 20px 60px #0000004d}.fs-icon{color:var(--color-primary);margin-bottom:8px;font-size:56px;line-height:1}.fs-card h2{color:var(--color-text);margin:12px 0 8px;font-size:24px}.fs-card p{color:var(--color-text-muted);margin-bottom:24px;line-height:1.6}.exam-topbar{z-index:50;background:var(--color-bg);border-bottom:1px solid var(--color-border-light);justify-content:space-between;align-items:center;gap:16px;padding:10px 24px;display:flex;position:sticky;top:0;box-shadow:0 1px 3px #1018280f}.exam-topbar-left{align-items:center;gap:14px;display:flex}.exam-topbar-left img{height:32px}.exam-topbar-left .exam-name{font-size:16px;font-weight:700}.exam-topbar-left .exam-set{background:var(--color-primary);color:#fff;border-radius:var(--radius-full);letter-spacing:.06em;text-transform:uppercase;padding:3px 10px;font-size:11px;font-weight:700}.exam-timer{font-variant-numeric:tabular-nums;color:var(--color-text);background:var(--color-surface);border-radius:var(--radius-md);border:1.5px solid var(--color-border);align-items:center;gap:8px;padding:8px 16px;font-size:22px;font-weight:700;display:flex}.exam-timer.warn{color:#b45309;background:#fef3c7;border-color:#fcd34d}.exam-timer.danger{color:#fff;background:var(--color-primary);border-color:var(--color-primary);animation:1.6s ease-in-out infinite pulse}@keyframes pulse{0%,to{box-shadow:0 0 #dc262666}50%{box-shadow:0 0 0 8px #dc262600}}.exam-timer-icon{font-size:18px}.exam-topbar-right{align-items:center;gap:12px;display:flex}.exam-layout{flex:1;grid-template-columns:minmax(0,1fr) 360px;align-items:start;gap:20px;padding:20px 24px 24px;display:grid}@media (width<=1024px){.exam-layout{grid-template-columns:1fr}}.question-card{background:var(--color-bg);border:1px solid var(--color-border-light);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);-webkit-user-select:none;user-select:none;padding:28px 32px}.q-meta{align-items:center;gap:12px;margin-bottom:14px;font-size:13px;display:flex}.q-number{background:var(--color-primary);color:#fff;border-radius:var(--radius-full);padding:4px 12px;font-weight:700}.q-section{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.04em;font-size:11px;font-weight:600}.q-text{color:var(--color-text);margin:0 0 12px;font-size:17px;font-weight:500;line-height:1.55}.q-subtext{color:var(--color-text);margin:16px 0 12px;font-size:16px;font-weight:500}.q-image{border-radius:var(--radius-md);border:1px solid var(--color-border-light);max-width:100%;margin:16px 0;display:block}.q-options{flex-direction:column;gap:12px;margin:24px 0 32px;display:flex}.q-option{background:var(--color-bg);border:2px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);color:var(--color-text);align-items:center;gap:14px;padding:14px 18px;font-size:15px;display:flex}.q-option:hover{border-color:var(--color-primary);background:var(--color-primary-soft)}.q-option.selected{border-color:var(--color-primary);background:var(--color-primary-soft);box-shadow:0 0 0 3px #dc26261a}.q-option-letter{background:var(--color-surface);border:1.5px solid var(--color-border);width:32px;height:32px;color:var(--color-text);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:14px;font-weight:700;display:flex}.q-option.selected .q-option-letter{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.q-option-text{flex:1;font-size:15px}.q-actions{border-top:1px solid var(--color-border-light);flex-wrap:wrap;align-items:center;gap:12px 14px;margin-top:28px;padding-top:24px;display:flex}.q-actions .btn{white-space:nowrap;flex-shrink:0;padding:10px 18px}.q-actions-spacer{flex:1;min-width:0}.q-review-pill{color:#fff;letter-spacing:.04em;text-transform:uppercase;background:#9333ea;border-radius:999px;padding:3px 10px;font-size:11px;font-weight:700}.exam-progress{color:var(--color-text-muted);white-space:nowrap;font-size:13px}@media (width<=700px){.exam-progress{display:none}}.btn-mark-review{color:#7e22ce;background:0 0;border:1.5px solid #d8b4fe}.btn-mark-review:hover:not(:disabled){background:#faf5ff}.btn-mark-review.active{color:#fff;background:#9333ea;border-color:#9333ea}.btn-clear{border:1.5px solid var(--color-border);color:var(--color-text-muted);background:0 0}.btn-clear:hover:not(:disabled){background:var(--color-surface-2)}.exam-palette{background:var(--color-bg);border:1px solid var(--color-border-light);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);max-height:calc(100vh - 96px);padding:18px;position:sticky;top:76px;overflow-y:auto}.palette-stats{text-align:center;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:14px;display:grid}.palette-stat{background:var(--color-surface);border-radius:var(--radius-md);padding:8px 4px}.palette-stat-num{color:var(--color-text);font-size:18px;font-weight:700;display:block}.palette-stat-label{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.04em;margin-top:2px;font-size:11px;display:block}.palette-legend{color:var(--color-text-muted);border-bottom:1px solid var(--color-border-light);flex-wrap:wrap;align-items:center;gap:6px 12px;margin-bottom:12px;padding:10px 4px;font-size:11px;display:flex}.palette-legend .dot{vertical-align:middle;border-radius:50%;width:10px;height:10px;margin-right:4px;display:inline-block}.palette-legend .dot.answered{background:#16a34a}.palette-legend .dot.review{background:#9333ea}.palette-legend .dot.not_answered{background:#dc2626}.palette-legend .dot.not_visited{background:#d1d5db}.palette-group{margin-bottom:14px}.palette-group-title{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px;font-size:11px;font-weight:700}.palette-grid{grid-template-columns:repeat(8,1fr);gap:6px;display:grid}.palette-cell{color:var(--color-text);cursor:pointer;font-variant-numeric:tabular-nums;height:32px;transition:all var(--transition-fast);background:#f3f4f6;border:1.5px solid #0000;border-radius:6px;justify-content:center;align-items:center;font-size:13px;font-weight:600;display:flex}.palette-cell:hover{transform:scale(1.05)}.palette-cell.answered{color:#fff;background:#16a34a}.palette-cell.review{color:#fff;background:#9333ea}.palette-cell.answered_review{color:#fff;background:#16a34a;box-shadow:inset 0 0 0 2px #9333ea}.palette-cell.not_answered{color:#fff;background:#dc2626}.palette-cell.not_visited{color:var(--color-text-muted);background:#f3f4f6}.palette-cell.current{outline:3px solid var(--color-primary);outline-offset:2px;z-index:1;transform:scale(1.08)}.submit-stats{grid-template-columns:repeat(4,1fr);gap:10px;margin:20px 0 0;display:grid}.submit-stat{text-align:center;background:var(--color-surface);border-radius:var(--radius-md);padding:14px 6px}.submit-stat-num{font-size:26px;font-weight:800;line-height:1}.submit-stat-label{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.04em;margin-top:6px;font-size:11px}.cheat-banner{z-index:200;color:#78350f;border-radius:var(--radius-md);box-shadow:var(--shadow-md);background:#fef3c7;border:1px solid #fcd34d;padding:10px 18px;font-size:14px;font-weight:600;animation:.3s dropDown;position:fixed;top:70px;left:50%;transform:translate(-50%)}@keyframes dropDown{0%{opacity:0;transform:translate(-50%,-10px)}to{opacity:1;transform:translate(-50%)}}.result-overlay{z-index:300;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#101828b3;justify-content:center;align-items:center;padding:24px;animation:.25s resultIn;display:flex;position:fixed;inset:0}@keyframes resultIn{0%{opacity:0}to{opacity:1}}.result-card{background:var(--color-bg);border-radius:var(--radius-xl);text-align:center;width:100%;max-width:480px;box-shadow:var(--shadow-lg);padding:40px 44px;animation:.35s resultPop}@keyframes resultPop{0%{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}.result-card h2{color:var(--color-text);margin:12px 0 8px;font-size:26px}.result-icon{border-radius:50%;justify-content:center;align-items:center;width:68px;height:68px;font-size:36px;font-weight:700;display:inline-flex}.result-icon.success{color:#16a34a;background:#dcfce7}.result-icon.timeup{background:var(--color-primary-soft);color:var(--color-primary)}.result-score{color:var(--color-primary);margin:16px 0 8px;font-size:64px;font-weight:800;line-height:1}.result-score .out-of{color:var(--color-text-muted);font-size:24px;font-weight:600}.result-spinner{border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;width:32px;height:32px;margin:16px auto 0;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (width<=1024px){.exam-palette{max-height:none;position:static}}@media (width<=700px){.exam-topbar{padding:8px 14px}.exam-topbar-left .exam-name{display:none}.exam-timer{padding:6px 12px;font-size:18px}.exam-layout{gap:14px;padding:14px}.question-card{padding:18px 16px}.q-text{font-size:15px}.palette-grid{grid-template-columns:repeat(10,1fr)}.submit-stats{grid-template-columns:repeat(2,1fr)}}.modal-overlay{z-index:100;background:#1018288c;justify-content:center;align-items:center;padding:24px;animation:.15s fadeIn;display:flex;position:fixed;inset:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-card{background:var(--color-bg);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);width:100%;max-width:520px;padding:32px 36px;animation:.2s slideIn;position:relative}@keyframes slideIn{0%{opacity:0;transform:translateY(-12px)}to{opacity:1;transform:translateY(0)}}.modal-close{color:var(--color-text-light);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;font-size:28px;line-height:1;display:flex;position:absolute;top:14px;right:14px}.modal-close:hover{background:var(--color-surface-2);color:var(--color-text)}.modal-title{margin:0 0 4px;font-size:22px;font-weight:700}.modal-sub{color:var(--color-text-muted);margin:0 0 20px;font-size:14px}.paper-options{flex-direction:column;gap:12px;margin-bottom:24px;display:flex}.paper-option{border:2px solid var(--color-border);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-fast);align-items:center;gap:14px;padding:14px 16px;display:flex}.paper-option:hover{border-color:var(--color-primary);background:var(--color-primary-soft)}.paper-option.selected{border-color:var(--color-primary);background:var(--color-primary-soft);box-shadow:0 0 0 3px #dc262614}.paper-option input{width:18px;height:18px;accent-color:var(--color-primary);flex-shrink:0;margin:0}.paper-content{flex:1}.paper-name{color:var(--color-text);margin-bottom:2px;font-size:16px;font-weight:700}.paper-meta{color:var(--color-text-muted);font-size:13px}.badge-current{background:var(--color-success-bright);color:#fff;border-radius:var(--radius-full);text-transform:uppercase;letter-spacing:.04em;margin-left:8px;padding:2px 8px;font-size:11px;font-weight:600;display:inline-block}.modal-actions{align-items:center;gap:8px;display:flex}.admin-page{max-width:1400px;margin:0 auto;padding:32px 40px}.admin-page-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:24px;display:flex}.admin-page-header h1{margin:0 0 4px;font-size:28px}.admin-page-header .subtitle{color:var(--color-text-muted);margin:0;font-size:14px}.stats-row{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:24px;display:grid}.stat-card{background:var(--color-bg);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);padding:20px 24px;position:relative;overflow:hidden}.stat-card:before{content:"";background:var(--color-primary);width:4px;height:100%;position:absolute;top:0;left:0}.stat-label{color:var(--color-text-light);text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px;font-size:12px;font-weight:600}.stat-value{color:var(--color-text);font-size:32px;font-weight:700;line-height:1}.stat-sub{color:var(--color-text-muted);margin-top:6px;font-size:13px}.admin-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px;display:flex}.search-input{width:320px;max-width:100%}.toolbar-right{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.toolbar-right .btn{white-space:nowrap}.table-wrap{background:var(--color-bg);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden}.data-table{border-collapse:collapse;width:100%;font-size:14px}.data-table thead th{background:var(--color-surface);color:var(--color-text-light);text-transform:uppercase;letter-spacing:.05em;text-align:left;border-bottom:1px solid var(--color-border-light);white-space:nowrap;padding:14px 16px;font-size:12px;font-weight:600}.data-table tbody td{border-bottom:1px solid var(--color-border-light);color:var(--color-text);vertical-align:middle;padding:14px 16px}.data-table tbody tr:last-child td{border-bottom:none}.data-table tbody tr:hover{background:var(--color-surface)}.data-table .col-id{width:60px;color:var(--color-text-light);font-variant-numeric:tabular-nums}.data-table .col-name{font-weight:600}.data-table .col-email,.data-table .col-phone{color:var(--color-text-muted)}.data-table .col-actions{text-align:right;white-space:nowrap}.data-table .col-regno{color:var(--color-primary);letter-spacing:.04em;font-family:Consolas,Menlo,monospace;font-size:13px;font-weight:700}.data-table .col-school-sub{color:var(--color-text-light);margin-top:2px;font-size:12px}.row-photo{object-fit:cover;border:1px solid var(--color-border);border-radius:6px;width:40px;height:48px;display:block}.row-photo.placeholder{background:var(--color-surface);color:var(--color-text-light);justify-content:center;align-items:center;font-size:13px;display:flex}.action-stack{flex-direction:column;align-items:stretch;gap:6px;display:flex}.action-stack .btn{white-space:nowrap}.col-check{text-align:center;width:36px;padding-left:12px!important;padding-right:4px!important}.col-check input[type=checkbox]{width:16px;height:16px;accent-color:var(--color-primary);cursor:pointer}.col-check input[type=checkbox]:disabled{cursor:not-allowed;opacity:.4}.data-table tr.row-selected td{background:#dc26260a}.bulk-bar{z-index:80;background:var(--color-text);color:#fff;border-radius:12px;flex-wrap:wrap;align-items:center;gap:18px;max-width:calc(100vw - 48px);padding:12px 18px;animation:.2s bulkSlideUp;display:flex;position:fixed;bottom:24px;left:50%;transform:translate(-50%);box-shadow:0 12px 32px #10182840}@keyframes bulkSlideUp{0%{opacity:0;transform:translate(-50%,20px)}to{opacity:1;transform:translate(-50%)}}.bulk-bar-info{align-items:center;gap:10px;font-size:14px;display:flex}.bulk-count{background:var(--color-primary);color:#fff;text-align:center;border-radius:999px;min-width:28px;padding:4px 10px;font-size:14px;font-weight:700}.bulk-bar-actions{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.bulk-label{color:#ffffffb3;font-size:13px}.bulk-select{color:#fff;cursor:pointer;background:#ffffff1a;border:1.5px solid #fff3;border-radius:6px;width:auto;padding:6px 10px;font-size:13px}.bulk-select option{color:var(--color-text)}.bulk-bar .btn-primary{background:var(--color-primary)}.bulk-bar .btn-ghost{color:#fff;background:0 0;border-color:#ffffff4d}.bulk-bar .btn-ghost:hover:not(:disabled){background:#ffffff1a}.bulk-result{color:#166534;border-radius:var(--radius-md);background:#f0fdf4;border:1px solid #bbf7d0;margin-bottom:16px;padding:12px 40px 12px 16px;font-size:14px;position:relative}.bulk-result.warn{color:#78350f;background:#fffbeb;border-color:#fde68a}.bulk-result-close{color:inherit;cursor:pointer;opacity:.6;background:0 0;border:none;padding:4px 8px;font-size:22px;line-height:1;position:absolute;top:50%;right:12px;transform:translateY(-50%)}.bulk-result-close:hover{opacity:1}@media (width<=700px){.bulk-bar{flex-direction:column;align-items:stretch;padding:14px;bottom:12px}.bulk-bar-actions{justify-content:space-between}}.page-info{color:var(--color-text-muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin:8px 4px 12px;font-size:13px;display:flex}.page-info strong{color:var(--color-text);font-weight:600}.page-size-row{align-items:center;gap:8px;display:flex}.page-size-row label{color:var(--color-text-muted);font-size:13px}.page-size-select{border:1.5px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);width:auto;color:var(--color-text);cursor:pointer;padding:6px 28px 6px 10px;font-size:13px;font-weight:600}.pagination{flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;margin:20px 0 24px;display:flex}.page-btn{border:1.5px solid var(--color-border);background:var(--color-bg);color:var(--color-text);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);font-size:13px;font-weight:600;font-family:var(--font-sans);padding:8px 14px}.page-btn:hover:not(:disabled){border-color:var(--color-primary);color:var(--color-primary)}.page-btn:disabled{opacity:.45;cursor:not-allowed}.page-indicator{color:var(--color-text-muted);padding:0 12px;font-size:13px}.page-indicator strong{color:var(--color-text);font-weight:700}.status{border-radius:var(--radius-full);letter-spacing:.02em;white-space:nowrap;padding:4px 10px;font-size:12px;font-weight:600;display:inline-block}.status.registered{color:#92400e;background:#fef3c7}.status.assigned{color:#1e40af;background:#dbeafe}.status.in-progress{color:#9d174d;background:#fce7f3}.status.submitted{color:#166534;background:#dcfce7}.empty-state,.loading-state{text-align:center;color:var(--color-text-light);padding:64px 32px}.empty-state h3{color:var(--color-text);margin:0 0 8px;font-size:18px}.empty-state p{margin:0;font-size:14px}.error-banner{color:#991b1b;border-radius:var(--radius-md);background:#fef2f2;border:1px solid #fecaca;margin-bottom:16px;padding:12px 16px;font-size:14px}@media (width<=900px){.admin-page{padding:20px 16px}.data-table{font-size:13px}.data-table thead th,.data-table tbody td{padding:10px 12px}.table-wrap{overflow-x:auto}}.detail-page{max-width:1200px;margin:0 auto;padding:24px 32px 48px}.detail-back{color:var(--color-text-muted);align-items:center;gap:6px;margin-bottom:16px;font-size:14px;font-weight:500;text-decoration:none;display:inline-flex}.detail-back:hover{color:var(--color-primary)}.personal-card{background:var(--color-bg);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);grid-template-columns:140px 1fr;gap:24px;margin-bottom:20px;padding:24px;display:grid}.personal-photo{object-fit:cover;border:2px solid var(--color-primary);border-radius:8px;width:130px;height:156px}.personal-photo.placeholder{background:var(--color-surface);color:var(--color-text-light);border:2px dashed var(--color-border);justify-content:center;align-items:center;font-size:13px;display:flex}.personal-info h2{margin:0 0 4px;font-size:22px}.personal-reg{color:var(--color-primary);letter-spacing:.04em;margin-bottom:12px;font-family:Consolas,Menlo,monospace;font-size:15px;font-weight:700}.personal-grid{grid-template-columns:repeat(2,1fr);gap:6px 24px;font-size:14px;display:grid}.personal-grid>div{border-bottom:1px solid var(--color-border-light);gap:8px;padding:6px 0;display:flex}.personal-grid .label{color:var(--color-text-muted);min-width:100px}.personal-grid .value{color:var(--color-text);flex:1;font-weight:500}.personal-actions{gap:10px;margin-top:14px;display:flex}.exam-summary{background:var(--color-bg);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-bottom:24px;padding:20px 24px;display:grid}.summary-stat{border-right:1px solid var(--color-border-light);padding-right:12px}.summary-stat:last-child{border-right:none}.summary-stat .stat-label{color:var(--color-text-muted);letter-spacing:.06em;text-transform:uppercase;font-size:11px;font-weight:600}.summary-stat .stat-value{color:var(--color-text);margin-top:4px;font-size:22px;font-weight:700;line-height:1}.summary-stat .stat-value.score{color:var(--color-primary);font-size:26px}.summary-stat .stat-value.green{color:#16a34a}.summary-stat .stat-value.red{color:#dc2626}.review-toolbar{flex-wrap:wrap;gap:8px;margin-bottom:16px;display:flex}.review-filter{border:1.5px solid var(--color-border);background:var(--color-bg);border-radius:var(--radius-md);cursor:pointer;color:var(--color-text);transition:all var(--transition-fast);padding:8px 14px;font-size:13px;font-weight:600}.review-filter:hover{border-color:var(--color-primary);color:var(--color-primary)}.review-filter.active{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.review-question{background:var(--color-bg);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);margin-bottom:12px;padding:20px 24px}.review-q-head{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px;display:flex}.review-q-num{background:var(--color-text);color:#fff;border-radius:var(--radius-full);padding:3px 10px;font-size:12px;font-weight:700}.review-q-section{color:var(--color-text-muted);letter-spacing:.04em;text-transform:uppercase;font-size:11px;font-weight:600}.review-q-result{border-radius:var(--radius-full);letter-spacing:.04em;margin-left:auto;padding:3px 10px;font-size:12px;font-weight:700}.review-q-result.correct{color:#166534;background:#dcfce7}.review-q-result.wrong{color:#991b1b;background:#fee2e2}.review-q-result.skipped{color:#6a7282;background:#f3f4f6}.review-q-text{color:var(--color-text);margin:0 0 12px;font-size:15px;font-weight:500}.review-q-subtext{color:var(--color-text);margin:12px 0 8px;font-size:14px;font-weight:500}.review-options{flex-direction:column;gap:8px;margin-top:12px;display:flex}.review-option{border:2px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg);align-items:center;gap:12px;padding:10px 14px;font-size:14px;display:flex}.review-option .opt-letter{background:var(--color-surface);border:1.5px solid var(--color-border);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;font-size:13px;font-weight:700;display:flex}.review-option .opt-text{color:var(--color-text);flex:1}.review-option .opt-mark{white-space:nowrap;font-size:12px;font-weight:600}.review-option.correct-picked{background:#dcfce7;border-color:#16a34a}.review-option.correct-picked .opt-letter{color:#fff;background:#16a34a;border-color:#16a34a}.review-option.correct-picked .opt-mark{color:#166534}.review-option.correct-not-picked{border-style:dashed;border-color:#16a34a}.review-option.correct-not-picked .opt-letter{color:#16a34a;background:#fff;border-color:#16a34a}.review-option.correct-not-picked .opt-mark{color:#16a34a}.review-option.wrong-picked{background:#fee2e2;border-color:#dc2626}.review-option.wrong-picked .opt-letter{color:#fff;background:#dc2626;border-color:#dc2626}.review-option.wrong-picked .opt-mark{color:#991b1b}@media (width<=700px){.detail-page{padding:16px}.personal-card,.personal-grid{grid-template-columns:1fr}.summary-stat{border-right:none;border-bottom:1px solid var(--color-border-light);padding-bottom:8px}}.app-shell{flex-direction:column;min-height:100vh;display:flex}.app-header{z-index:50;background:var(--color-bg);border-bottom:1px solid var(--color-border-light);padding:var(--space-4) var(--space-6);-webkit-backdrop-filter:saturate(180%)blur(8px);backdrop-filter:saturate(180%)blur(8px);justify-content:space-between;align-items:center;display:flex;position:sticky;top:0;box-shadow:0 1px 3px #1018280a}.app-header .brand{align-items:center;gap:var(--space-3);display:flex}.app-header .brand img{width:auto;height:40px}.app-header .brand-name{font-weight:700;font-size:var(--fs-lg);color:var(--color-text);letter-spacing:-.01em}.app-header .brand-name .accent{color:var(--color-primary)}.app-main{padding:var(--space-8) var(--space-6);flex:1}.app-footer{background:var(--color-surface);border-top:1px solid var(--color-border-light);padding:var(--space-6);text-align:center;color:var(--color-text-light);font-size:var(--fs-sm)}.landing{text-align:center;max-width:720px;padding:var(--space-12) var(--space-4);margin:0 auto}.landing img.logo{width:140px;height:auto;margin-bottom:var(--space-6)}.landing h1{margin-bottom:var(--space-3)}.landing .tagline{font-size:var(--fs-lg);color:var(--color-text-muted);margin-bottom:var(--space-8)}.landing .actions{gap:var(--space-4);flex-wrap:wrap;justify-content:center;display:flex}
