:root{--bg: #0e0e18;--surface: #141420;--surface2: #1a1a2e;--border: #252538;--border2: #353550;--text: #f0f0f0;--muted: #7a7a9a;--dim: #4a4a6a;--accent: #4a9eff;--accent-dim: #0d1f3a;--accent-text: #90c4ff;--accent2: #2dd4a0;--accent2-dim: #062a1f;--accent2-text: #7eecd4;--font-sans: "DM Sans", system-ui, sans-serif;--font-mono: "IBM Plex Mono", monospace;--amber: #f59e3a;--amber-dim: #2a1906;--amber-text: #fbc97a;--red: #e06060;--red-dim: #3d1a1a;--red-text: #f09090}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background:var(--bg);color:var(--text);min-height:100vh;min-height:100dvh;transition:background .2s,color .2s}.app-shell{display:flex;min-height:100vh;min-height:100dvh;position:relative}.sidebar{width:220px;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;position:sticky;top:0;height:100vh;height:100dvh;overflow-y:auto;overflow-x:hidden;transition:width .22s ease,transform .22s ease;z-index:100}.sidebar.collapsed{width:0;border-right:none}.sidebar-toggle-btn{position:fixed;top:12px;z-index:200;width:24px;height:24px;border-radius:50%;border:1px solid var(--border2);background:var(--surface);color:var(--muted);font-size:14px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:left .22s ease,background .15s,color .15s;box-shadow:0 1px 4px #0000004d}.sidebar-toggle-btn:hover{background:var(--surface2);color:var(--text)}@media(max-width:767px){.sidebar{position:fixed;top:0;left:0;padding-bottom:env(safe-area-inset-bottom);transform:translate(0);width:220px;z-index:300;box-shadow:4px 0 20px #0006}.sidebar.collapsed{transform:translate(-220px);width:220px}.sidebar-overlay{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:299;animation:fadeIn .15s ease}.sidebar-toggle-btn{left:8px!important;top:8px!important;width:30px;height:30px;font-size:16px}.content{padding:48px 16px 16px;padding-bottom:calc(16px + env(safe-area-inset-bottom))}}.sidebar-logo{padding:18px 16px 14px;border-bottom:1px solid var(--border)}.sidebar-logo img{width:100%;max-width:188px;height:auto;display:block}.logo-mark{font-family:var(--font-mono);font-size:13px;font-weight:600;color:var(--accent);letter-spacing:-.02em}.logo-sub{font-size:10px;color:var(--muted);margin-top:4px;font-family:var(--font-mono);letter-spacing:.04em;text-transform:uppercase}.sidebar-user{padding:12px 20px;border-bottom:1px solid var(--border)}.user-name{font-size:11px;color:var(--muted);font-family:var(--font-mono);line-height:1.4}.user-role{font-size:10px;color:var(--dim);font-family:var(--font-mono);margin-top:2px}.nav-section{padding:16px 0 8px;flex:1}.nav-label{font-size:9px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);padding:0 20px;margin-bottom:4px}.nav-item{display:flex;align-items:center;gap:10px;padding:9px 20px;font-size:13px;color:var(--muted);cursor:pointer;transition:all .15s;border:none;border-left:2px solid transparent;background:none;width:100%;text-align:left;font-family:var(--font-sans);text-decoration:none}.nav-item:hover{color:var(--text);background:var(--surface2)}.nav-item.active{color:var(--accent);background:var(--surface2);border-left-color:var(--accent);padding-left:18px}.sidebar-bottom{padding:16px 20px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:8px}.btn-logout{width:100%;padding:8px 12px;background:none;border:1px solid var(--border2);color:var(--muted);border-radius:4px;font-size:12px;cursor:pointer;font-family:var(--font-sans);transition:all .15s;text-align:center}.btn-logout:hover{border-color:var(--muted);color:var(--text)}.btn-mode{width:100%;padding:8px 12px;background:var(--surface2);border:1px solid var(--border);color:var(--muted);border-radius:4px;font-size:11px;cursor:pointer;font-family:var(--font-mono);transition:all .15s;display:flex;align-items:center;justify-content:center;gap:6px}.btn-mode:hover{border-color:var(--accent);color:var(--accent)}.main{flex:1;display:flex;flex-direction:column;min-width:0;overflow-y:auto;background:var(--bg);transition:background .2s}.content{padding:32px;flex:1}.page-header{margin-bottom:28px}.page-title{font-size:22px;font-weight:700;margin-bottom:4px;color:var(--text)}.page-sub{font-size:13px;color:var(--muted)}.card{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:24px;margin-bottom:16px;transition:background .2s,border-color .2s}.card-title{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--text);display:flex;align-items:center;justify-content:space-between}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;margin-bottom:20px}.klas-card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:16px;cursor:pointer;text-align:left;transition:all .15s;font-family:var(--font-sans);width:100%}.klas-card:hover{border-color:var(--border2);background:var(--surface2)}.klas-card.active{border-color:var(--accent)}.klas-naam{font-weight:600;font-size:14px;color:var(--text);margin-bottom:4px}.klas-meta{font-size:11px;color:var(--muted)}.klas-count{font-size:11px;color:var(--dim);margin-top:6px;font-family:var(--font-mono)}.table{width:100%;border-collapse:collapse}.table th{padding:10px 14px;text-align:left;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);border-bottom:1.5px solid var(--border);font-weight:600}.table td{padding:12px 14px;border-bottom:1px solid var(--border);font-size:13px;color:var(--text)}.table tr:last-child td{border-bottom:none}.table tr:hover td{background:var(--surface2)}.pill{font-size:10px;font-weight:600;padding:2px 9px;border-radius:3px;font-family:var(--font-mono)}.pill-basis{background:var(--accent-dim);color:var(--accent-text)}.pill-gemiddeld{background:var(--amber-dim);color:var(--amber-text)}.pill-gevorderd{background:var(--accent2-dim);color:var(--accent2-text)}.pill-open{background:var(--accent-dim);color:var(--accent-text)}.pill-ingediend{background:var(--surface2);color:var(--muted)}.pill-nagekeken,.pill-actief{background:var(--accent2-dim);color:var(--accent2-text)}.form{display:flex;flex-direction:column;gap:14px;max-width:520px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}label{font-size:12px;font-weight:500;display:block;margin-bottom:5px;color:var(--muted)}input,select,textarea{width:100%;padding:9px 12px;border:1px solid var(--border2);border-radius:6px;font-size:13px;font-family:var(--font-sans);background:var(--surface2);color:var(--text);outline:none;transition:border-color .15s}input::placeholder,textarea::placeholder{color:var(--muted)}input:focus,select:focus,textarea:focus{border-color:var(--accent)}select option{background:var(--surface2);color:var(--text)}textarea{resize:vertical;min-height:80px}input:disabled,textarea:disabled{opacity:.5;cursor:not-allowed}.btn{padding:10px 20px;border-radius:6px;font-size:13px;font-weight:600;cursor:pointer;border:none;font-family:var(--font-sans);transition:all .2s}.btn-primary{background:var(--accent);color:var(--bg)}.btn-primary:hover:not(:disabled){filter:brightness(1.15)}.btn-primary:disabled{background:var(--surface2);color:var(--muted);cursor:not-allowed}.btn-green{background:var(--accent2);color:var(--bg)}.btn-green:hover:not(:disabled){filter:brightness(1.15)}.btn-green:disabled{opacity:.3;cursor:not-allowed}.btn-sm{padding:6px 14px;font-size:12px}.result-label{font-size:10px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}.fase-item{display:grid;grid-template-columns:90px 70px 1fr 120px;gap:12px;padding:12px 0;border-bottom:1px solid var(--border);align-items:start;font-size:13px}.fase-item:last-child{border-bottom:none}.fase-naam{font-weight:600;color:var(--text)}.fase-tijd{font-family:var(--font-mono);font-size:11px;color:var(--accent)}.fase-methode{font-size:12px;color:var(--muted);font-style:italic}.diff-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.diff-block{padding:14px;border-radius:6px;font-size:12px;line-height:1.6}.diff-title{font-weight:700;font-size:10px;margin-bottom:6px;text-transform:uppercase;letter-spacing:.1em}.diff-basis{background:var(--accent-dim)}.diff-gemiddeld{background:var(--amber-dim)}.diff-gevorderd{background:var(--accent2-dim)}.diff-basis .diff-title{color:var(--accent-text)}.diff-gemiddeld .diff-title{color:var(--amber-text)}.diff-gevorderd .diff-title{color:var(--accent2-text)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;z-index:1000;display:flex;align-items:center;justify-content:center;padding:24px 16px}.modal-box{background:var(--bg);border:1px solid var(--border);border-radius:12px;width:100%;max-width:720px;position:relative;display:flex;flex-direction:column;max-height:calc(100vh - 48px);overflow:hidden;animation:slideUp .2s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.modal-header{flex-shrink:0;display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:20px 24px 16px;border-bottom:1px solid var(--border)}.modal-body{flex:1;overflow-y:auto;padding:24px;-webkit-overflow-scrolling:touch}.modal-close{flex-shrink:0;width:32px;height:32px;border-radius:6px;border:1px solid var(--border);background:var(--surface2);color:var(--muted);cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center;transition:background .15s,color .15s}.modal-close:hover{background:var(--surface);color:var(--text)}:-webkit-full-screen .modal-backdrop,:fullscreen .modal-backdrop{padding:0;align-items:stretch}:-webkit-full-screen .modal-box,:fullscreen .modal-box{max-width:100%;max-height:100vh;height:100vh;border-radius:0;border:none}:-webkit-full-screen .modal-header,:fullscreen .modal-header{padding:20px 40px 16px}:-webkit-full-screen .modal-body,:fullscreen .modal-body{padding:24px 40px}.surveillance-overlay{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:12px;background:#140505f7;z-index:20;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:40px;animation:fadeIn .1s ease}.surveillance-countdown{font-size:80px;font-weight:900;line-height:1;font-family:var(--font-mono);color:var(--red)}.surveillance-title{font-size:22px;font-weight:700;color:#fff;text-align:center}.surveillance-sub{font-size:14px;color:#ffffff8c;text-align:center;max-width:360px;line-height:1.6}.surveillance-ongeldig .surveillance-title{color:var(--red-text)}.bewaking-btn{padding:2px 9px;border-radius:4px;font-size:10px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;border:1.5px solid var(--border);background:transparent;color:var(--dim);cursor:pointer;transition:all .15s;white-space:nowrap;flex-shrink:0}.bewaking-btn.actief,.bewaking-btn:hover{border-color:var(--accent);color:var(--accent)}.nakijk-panel{background:var(--surface2);border:1px solid var(--accent-dim);border-top:none;border-radius:0 0 8px 8px;padding:20px;margin-top:-6px;margin-bottom:6px;animation:fadeIn .15s ease}.nakijk-leerling{display:flex;align-items:center;gap:8px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border)}.nakijk-naam{font-weight:700;font-size:14px;color:var(--text)}.nakijk-sub{font-size:12px;color:var(--muted)}.nakijk-vragen{display:flex;flex-direction:column;gap:12px;margin-bottom:20px}.admin-lessentabel{width:100%;border-collapse:collapse;font-size:13px}.admin-lessentabel th{text-align:left;font-size:10px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;padding:4px 10px 6px;border-bottom:1px solid var(--border)}.admin-lessentabel td{padding:5px 10px;border-bottom:1px solid var(--border)}.admin-lessentabel tr:last-child td{border-bottom:none}.admin-lessentabel tr:hover td{background:var(--surface2)}.nakijk-vraag-nr{font-size:11px;font-weight:700;color:var(--accent);font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.06em;margin-bottom:3px}.nakijk-vraag-tekst{font-size:13px;font-weight:600;color:var(--text);margin-bottom:6px}.nakijk-antwoord{background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:10px 12px;font-size:13px;color:var(--text);white-space:pre-wrap;line-height:1.5}.nakijk-leeg{color:var(--muted);font-style:italic;font-size:12px;padding:8px 0}.nakijk-form{border-top:1px solid var(--border);padding-top:16px}.nakijk-form-row{display:flex;gap:12px;align-items:flex-start;flex-wrap:wrap;margin-bottom:10px}.nakijk-score{width:90px}.filter-tabs{display:flex;gap:6px;margin-bottom:8px;flex-wrap:wrap}.filter-tab{padding:5px 14px;border-radius:20px;font-size:12px;font-weight:600;border:1.5px solid var(--border);background:transparent;color:var(--muted);cursor:pointer;transition:border-color .15s,color .15s,background .15s;letter-spacing:.02em}.filter-tab:hover{border-color:var(--accent);color:var(--accent)}.filter-tab.active{background:var(--accent);color:var(--bg);border-color:var(--accent)}.taken-stats{display:flex;gap:20px;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--border)}.stat-item{display:flex;flex-direction:column;gap:2px}.stat-nr{font-weight:700;font-size:22px;color:var(--text);line-height:1;font-family:var(--font-mono)}.stat-label{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}.stat-open .stat-nr{color:var(--accent)}.stat-ingediend .stat-nr{color:var(--muted)}.stat-nagekeken .stat-nr{color:var(--accent2-text)}.vak-sectie{margin-bottom:20px}.vak-sectie-header{display:flex;align-items:center;justify-content:space-between;padding:6px 0 8px;border-bottom:2px solid var(--border);margin-bottom:8px}.vak-naam{font-weight:700;font-size:12px;color:var(--text);text-transform:uppercase;letter-spacing:.08em}.vak-counts{display:flex;gap:6px}.vak-count{font-size:11px;color:var(--muted);background:var(--surface2);padding:1px 7px;border-radius:4px}.vak-count-open{color:var(--accent)}.kwartaal-badge{font-size:10px;font-weight:700;padding:2px 7px;border-radius:4px;background:var(--surface2);color:var(--dim);letter-spacing:.04em;font-family:var(--font-mono);white-space:nowrap;flex-shrink:0}.nakijken-klas{margin-bottom:28px}.nakijken-klas-header{display:flex;align-items:center;gap:10px;margin-bottom:12px;padding-bottom:8px;border-bottom:2px solid var(--accent-dim)}.nakijken-klas-naam{font-weight:700;font-size:14px;color:var(--accent-text)}.nakijken-count{font-size:12px;color:var(--muted)}.taak-row{display:flex;justify-content:space-between;align-items:center;padding:16px;background:var(--surface);border:1px solid var(--border);border-radius:8px;text-decoration:none;color:inherit;transition:border-color .15s,background .15s}.taak-row:hover{border-color:var(--border2)}.taak-evaluatie{background:color-mix(in srgb,var(--surface) 88%,#f59e3a 12%);border-color:color-mix(in srgb,var(--border) 70%,#f59e3a 30%)}.taak-oefening{background:color-mix(in srgb,var(--surface) 88%,#2dd4a0 12%);border-color:color-mix(in srgb,var(--border) 70%,#2dd4a0 30%)}.taak-evaluatie:hover{border-color:color-mix(in srgb,var(--border2) 60%,#f59e3a 40%)}.taak-oefening:hover{border-color:color-mix(in srgb,var(--border2) 60%,#2dd4a0 40%)}[data-mode=light] .taak-evaluatie{background:color-mix(in srgb,#fff 82%,#f59e3a 18%);border-color:color-mix(in srgb,#d0d0e8 50%,#f59e3a 50%)}[data-mode=light] .taak-oefening{background:color-mix(in srgb,#fff 82%,#2dd4a0 18%);border-color:color-mix(in srgb,#d0d0e8 50%,#2dd4a0 50%)}.taak-titel{font-weight:600;font-size:14px;margin-bottom:4px;color:var(--text)}.taak-meta{font-size:12px;color:var(--muted)}.taak-lesdoel{font-size:11px;color:var(--dim);margin-top:4px;font-family:var(--font-mono)}.deadline-badge{font-size:10px;font-weight:600;padding:2px 8px;border-radius:4px;font-family:var(--font-mono);white-space:nowrap;display:inline-block}.deadline-ok{background:var(--surface2);color:var(--dim)}.deadline-binnenkort{background:var(--accent-dim);color:var(--accent-text)}.deadline-verlopen{background:var(--red-dim);color:var(--red-text)}.datum-form{display:flex;flex-direction:column;gap:10px;width:100%}.datum-row{display:flex;gap:16px;flex-wrap:wrap}.datum-veld{display:flex;flex-direction:column;gap:4px;flex:1;min-width:160px}.datum-veld label{font-size:11px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}.datum-hint{font-size:11px;color:var(--dim)}.taaktype-toggle{display:flex;border:1px solid var(--border);border-radius:6px;overflow:hidden}.taaktype-btn{flex:1;padding:5px 10px;font-size:12px;font-weight:600;background:transparent;border:none;color:var(--muted);cursor:pointer;transition:all .15s;white-space:nowrap}.taaktype-btn.active{color:var(--text)}.taaktype-btn.taaktype-evaluatie.active{background:var(--amber-dim);color:var(--amber-text)}.taaktype-btn.taaktype-oefening.active{background:var(--accent2-dim);color:var(--accent2-text)}[data-mode=light] .taaktype-btn.taaktype-evaluatie.active{background:#fde9c0;color:#92400e}[data-mode=light] .taaktype-btn.taaktype-oefening.active{background:#c0f0e8;color:#065f46}.bewaking-toggle-label{display:flex;align-items:center;gap:6px;font-size:13px;cursor:pointer}.bewaking-toggle-label input{width:16px;height:16px;accent-color:var(--accent);cursor:pointer}.taaktype-pill{font-size:10px}.taaktype-pill-evaluatie{background:var(--amber-dim);color:var(--amber-text)}.taaktype-pill-oefening{background:var(--accent2-dim);color:var(--accent2-text)}[data-mode=light] .taaktype-pill-evaluatie{background:#fde9c0;color:#92400e}[data-mode=light] .taaktype-pill-oefening{background:#c0f0e8;color:#065f46}.instructie-block,.vraag-block{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:20px;margin-bottom:12px}.vraag-nr{color:var(--accent);margin-right:8px;font-family:var(--font-mono);font-size:12px}.vraag-tekst{font-weight:600;font-size:14px;margin-bottom:12px}.tip-block{background:var(--accent-dim);border:1px solid var(--border);border-radius:8px;padding:14px 16px;margin-bottom:16px}.tip-label{font-size:10px;font-weight:600;color:var(--accent-text);text-transform:uppercase;letter-spacing:.1em;margin-bottom:4px;font-family:var(--font-mono)}.tip-text{font-size:13px;color:var(--text)}.status-ok{background:var(--accent2-dim);border:1px solid var(--border);border-radius:8px;padding:14px 16px;color:var(--accent2-text);font-weight:500;font-size:14px}.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg);transition:background .2s}.login-box{width:100%;max-width:380px;padding:2rem}.login-title{font-size:20px;font-weight:700;margin-bottom:4px;color:var(--accent);font-family:var(--font-mono)}.login-sub{font-size:13px;color:var(--muted);margin-bottom:2rem}.error-msg{color:var(--red-text);font-size:12px}.link-sub{margin-top:1.5rem;font-size:12px;color:var(--muted)}.link-sub a{color:var(--accent-text);text-decoration:none}.link-sub a:hover{text-decoration:underline}.tasks-banner{display:flex;align-items:center;gap:16px;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:16px 20px;margin-bottom:20px}.tasks-banner-title{font-weight:600;font-size:14px;margin-bottom:2px;color:var(--text)}.tasks-banner-sub{font-size:12px;color:var(--muted)}.md-body{font-family:var(--font-sans);color:var(--text);line-height:1.75;font-size:15px}.md-body h1{font-size:28px;font-weight:700;margin:0 0 8px;color:var(--text)}.md-body h2{font-size:20px;font-weight:600;margin:2.5rem 0 12px;color:var(--text);border-bottom:1px solid var(--border);padding-bottom:8px}.md-body h3{font-size:16px;font-weight:600;margin:1.75rem 0 10px;color:var(--accent)}.md-body p{margin:0 0 1rem}.md-body ul,.md-body ol{padding-left:1.5rem;margin:0 0 1rem}.md-body li{margin-bottom:4px}.md-body a{color:var(--accent-text);text-decoration:none}.md-body a:hover{text-decoration:underline}.md-body code{font-family:var(--font-mono);font-size:12px;background:var(--surface2);color:var(--accent-text);padding:2px 6px;border-radius:3px}.md-body pre{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:20px;overflow-x:auto;margin:0 0 1.25rem}.md-body pre code{background:none;color:var(--text);padding:0;font-size:13px;line-height:1.6}.md-body table{width:100%;border-collapse:collapse;margin:0 0 1.25rem;font-size:13px}.md-body th{text-align:left;padding:10px 14px;background:var(--surface2);border-bottom:2px solid var(--border);color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.08em}.md-body td{padding:10px 14px;border-bottom:1px solid var(--border);vertical-align:top}.md-body tr:last-child td{border-bottom:none}.md-body blockquote{border-left:3px solid var(--accent);padding:4px 16px;margin:0 0 1rem;color:var(--muted)}.md-body hr{border:none;border-top:1px solid var(--border);margin:2rem 0}.spinner{display:inline-block;width:13px;height:13px;border:2px solid var(--border2);border-top-color:var(--accent);border-radius:50%;animation:spin .6s linear infinite;vertical-align:middle;margin-right:6px}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}.fade-in{animation:fadeIn .25s ease}