:root{--bg:#fff;--bg-sidebar:#f6f7f9;--text:#1b1d21;--muted:#6b7280;--border:#e3e5e9;--accent:#2563eb;--accent-soft:#e8effd}@media (prefers-color-scheme:dark){:root{--bg:#15171a;--bg-sidebar:#1c1f23;--text:#e8eaed;--muted:#9aa0a6;--border:#2b2f35;--accent:#6c9bff;--accent-soft:#23304a}}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font:15px/1.5 system-ui,-apple-system,Segoe UI,sans-serif}.layout{min-height:100vh;display:flex}.sidebar{background:var(--bg-sidebar);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;width:220px;padding:20px 12px;display:flex}.brand{padding:0 10px 18px;font-size:17px;font-weight:650}.nav-group{flex-direction:column;gap:2px;display:flex}.nav-spacer{flex:1}.nav-group-system{border-top:1px solid var(--border);padding-top:10px}.nav-link{color:var(--text);border-radius:7px;padding:8px 10px;text-decoration:none}.nav-link:hover{background:var(--border)}.nav-link.active{background:var(--accent-soft);color:var(--accent);font-weight:550}.content{flex:1;min-width:0;padding:36px 32px}.page{max-width:860px}h1{margin:0 0 8px;font-size:26px}h2{margin:32px 0 10px;font-size:18px}h3{margin:26px 0 8px;font-size:16px}.muted{color:var(--muted)}a{color:var(--accent)}code{background:var(--bg-sidebar);border:1px solid var(--border);white-space:nowrap;border-radius:4px;padding:1px 5px;font-size:13px}.id-diagram{border:1px solid var(--border);background:var(--bg-sidebar);border-radius:8px;padding:14px 16px;font-size:13px;line-height:1.6;overflow-x:auto}table{border-collapse:collapse;width:100%;margin-bottom:8px}th,td{border-bottom:1px solid var(--border);text-align:left;vertical-align:top;padding:7px 10px}th{text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-size:12px;font-weight:600}@media (width<=720px){.layout{flex-direction:column}.sidebar{border-right:none;border-bottom:1px solid var(--border);flex-flow:wrap;align-items:center;gap:4px;width:100%;padding:12px 16px}.brand{width:100%;padding:0 0 10px}.nav-group{flex-flow:wrap}.nav-spacer{display:none}.nav-group-system{border-top:none;margin-left:auto;padding-top:0}.content{padding:24px 16px}}.notice{border:1px solid var(--border);border-left:3px solid var(--accent);background:var(--bg-sidebar);color:var(--muted);border-radius:6px;padding:12px 14px}.card{border:1px solid var(--border);background:var(--bg-sidebar);border-radius:10px;margin:18px 0;padding:16px 18px}.field-row{flex-wrap:wrap;gap:14px;margin-bottom:12px;display:flex}label{color:var(--muted);flex-direction:column;gap:5px;font-size:13px;display:flex}.field-full{margin-bottom:14px}.field-full input{width:100%}select,input[type=text],input:not([type]){border:1px solid var(--border);background:var(--bg);color:var(--text);font:inherit;border-radius:6px;padding:7px 9px;font-size:14px}button{font:inherit;cursor:pointer}button.primary{background:var(--accent);color:#fff;border:none;border-radius:7px;padding:9px 16px;font-weight:550}button.primary:disabled{opacity:.6;cursor:default}button.linkish{color:var(--accent);text-align:left;background:0 0;border:none;padding:0}.small{font-size:12.5px}.labels{flex-direction:column;gap:7px;display:flex}.labels input{width:100%}.chips{flex-wrap:wrap;gap:5px;display:flex}.chip{border:1px solid var(--border);background:var(--bg);color:var(--muted);border-radius:999px;padding:3px 9px;font-size:12.5px}.chip-on{background:var(--accent-soft);border-color:var(--accent-soft);color:var(--accent)}.chip-static{cursor:default;margin-top:4px}.score-pair{align-items:center;gap:6px;display:flex}.score-pair input{width:62px}input[type=date],input[type=number]{border:1px solid var(--border);background:var(--bg);color:var(--text);font:inherit;border-radius:6px;padding:7px 9px;font-size:14px}.row-actions{align-items:center;gap:12px;display:flex}.drawer{z-index:10;background:#00000073;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0;overflow-y:auto}.drawer .card{background:var(--bg);width:100%;max-width:620px;margin:auto;box-shadow:0 12px 40px #0000004d}.drawer-title{margin-top:0;font-size:16px}.tabs{border-bottom:1px solid var(--border);gap:4px;margin:14px 0 6px;display:flex}.tab{color:var(--muted);background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-1px;padding:8px 14px}.tab-on{color:var(--accent);border-bottom-color:var(--accent);font-weight:550}.topic-picker{border:1px solid var(--border);background:var(--bg);border-radius:8px;max-height:190px;padding:8px;overflow-y:auto}datalist{display:none}textarea{border:1px solid var(--border);background:var(--bg);color:var(--text);font:inherit;resize:vertical;border-radius:6px;width:100%;padding:8px 9px;font-size:14px}.suggest-head{margin-bottom:6px}.field-full>.chips{margin-bottom:8px}.page-wide{max-width:1100px}.timetable{table-layout:fixed}.timetable th,.timetable td{border:1px solid var(--border);vertical-align:top;padding:6px 8px}.timetable thead th{text-align:left}.period-cell{width:44px;color:var(--muted)}.slot{background:var(--bg-sidebar)}.slot-label{font-size:13.5px;font-weight:550}.week-badge{border:1px solid var(--border);background:var(--bg);color:var(--muted);border-radius:7px;align-self:flex-end;padding:7px 12px;font-size:13px}.slot-chip{text-align:left}@media (width<=720px){.timetable{font-size:12px}.timetable th,.timetable td{padding:4px 5px}}.free{background:0 0}.off{background:repeating-linear-gradient(45deg, transparent, transparent 6px, var(--bg-sidebar) 6px, var(--bg-sidebar) 12px)}.slot,.free{border-left:3px solid var(--accent)!important}.free{border-left-color:var(--border)!important}.slot-top{justify-content:space-between;gap:8px;margin-bottom:3px;display:flex}.slot-label{margin-bottom:3px;font-size:13.5px;font-weight:650}.slot-meta{line-height:1.45}.slot,.free{--slot-colour:var(--border);background:color-mix(in srgb, var(--slot-colour) 12%, transparent);border-left:3px solid var(--slot-colour)!important}.c-other{--slot-colour:var(--muted)}.legend{color:var(--muted);flex-wrap:wrap;gap:10px 16px;margin:14px 0 10px;font-size:12.5px;display:flex}.legend span{align-items:center;gap:6px;display:flex}.legend i{background:var(--slot-colour);border-radius:3px;width:11px;height:11px}.slot,.free{background:color-mix(in srgb, var(--slot-colour) 26%, var(--bg));border-left-width:4px!important}.slot .slot-label{color:var(--text)}:root{--c-ma:#2563eb;--c-ph:#d97706;--c-ch:#0d9488;--c-study:#9333ea;--c-cep-design:#db2777;--c-cep-project:#4f46e5;--c-free:#16a34a}:root[data-theme=dark],:root[data-theme=midnight]{--c-ma:#60a5fa;--c-ph:#fbbf24;--c-ch:#2dd4bf;--c-study:#c084fc;--c-cep-design:#f472b6;--c-cep-project:#818cf8;--c-free:#4ade80}@media (prefers-color-scheme:dark){:root:not([data-theme=light]):not([data-theme=warm]){--c-ma:#60a5fa;--c-ph:#fbbf24;--c-ch:#2dd4bf;--c-study:#c084fc;--c-cep-design:#f472b6;--c-cep-project:#818cf8;--c-free:#4ade80}}.c-ma{--slot-colour:var(--c-ma)}.c-ph{--slot-colour:var(--c-ph)}.c-ch{--slot-colour:var(--c-ch)}.c-study{--slot-colour:var(--c-study)}.c-cep-design{--slot-colour:var(--c-cep-design)}.c-cep-project{--slot-colour:var(--c-cep-project)}.free{--slot-colour:var(--c-free)}:root[data-theme=light]{--bg:#fff;--bg-sidebar:#f6f7f9;--text:#1b1d21;--muted:#6b7280;--border:#e3e5e9;--accent:#2563eb;--accent-soft:#e8effd}:root[data-theme=dark]{--bg:#15171a;--bg-sidebar:#1c1f23;--text:#e8eaed;--muted:#9aa0a6;--border:#2b2f35;--accent:#6c9bff;--accent-soft:#23304a}:root[data-theme=midnight]{--bg:#0e1320;--bg-sidebar:#141b2d;--text:#e4e9f5;--muted:#8d99b5;--border:#243049;--accent:#7aa2ff;--accent-soft:#1d2942}:root[data-theme=warm]{--bg:#fbf7f0;--bg-sidebar:#f3ece1;--text:#2e2a24;--muted:#776e62;--border:#e2d8c8;--accent:#b45309;--accent-soft:#f6e7d2}:root[data-theme=contrast]{--bg:#fff;--bg-sidebar:#fff;--text:#000;--muted:#3a3a3a;--border:#6b6b6b;--accent:#03c;--accent-soft:#dde5ff}:root[data-theme=contrast] .slot,:root[data-theme=contrast] .free{background:color-mix(in srgb, var(--slot-colour) 18%, var(--bg))}.theme-grid{grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:8px;display:grid}.theme-option{border:1px solid var(--border);background:var(--bg);color:var(--text);text-align:left;border-radius:8px;align-items:center;gap:10px;padding:10px 12px;display:flex}.theme-option:hover{border-color:var(--accent)}.theme-on{border-color:var(--accent);background:var(--accent-soft)}.theme-swatch{border:1px solid var(--border);border-radius:6px;flex-shrink:0;width:26px;height:26px}.sw-system{background:linear-gradient(135deg,#fff 50%,#15171a 50%)}.sw-light{background:#fff}.sw-dark{background:#15171a}.sw-midnight{background:#0e1320}.sw-warm{background:#fbf7f0}.sw-contrast{background:linear-gradient(135deg,#fff 50%,#000 50%)}.legend span{padding:0;background:0 0!important;border:none!important}.signin{justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.signin-card{width:100%;max-width:360px;margin:0}.signin-card h1{margin-bottom:4px;font-size:22px}.signin-card .primary{width:100%;margin-top:6px}.viewer{z-index:20;background:#000000b8;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.viewer-inner{background:var(--bg);border:1px solid var(--border);border-radius:10px;flex-direction:column;gap:10px;width:100%;max-width:900px;max-height:92vh;padding:14px 16px;display:flex}.viewer-bar{justify-content:space-between;align-items:center;display:flex}.viewer-body{flex:1;justify-content:center;align-items:center;min-height:0;display:flex;overflow:auto}.viewer-body img{border-radius:6px;max-width:100%;max-height:78vh}.viewer-nav{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;display:flex}.page-toggle{margin-left:8px}.page-list{margin:6px 0 0;padding-left:18px;font-size:13px}.page-list li{margin-bottom:2px}.band{border:1px solid var(--slot-colour,var(--border));background:color-mix(in srgb, var(--slot-colour,var(--border)) 20%, var(--bg));border-radius:999px;padding:2px 9px;font-size:12.5px;font-weight:550;display:inline-block}.band-untested{--slot-colour:#9aa0a6}.band-shaky{--slot-colour:#ef4444}.band-developing{--slot-colour:#f59e0b}.band-solid{--slot-colour:#22c55e}.due-flag{color:var(--accent);font-weight:550}.row-open{background:var(--bg-sidebar)}.card-editor{margin:10px 0 4px}.grow{flex:1;min-width:200px}.grow input{width:100%}.card-list{margin:12px 0 0;padding:0;font-size:13.5px;list-style:none}.card-list li{border-top:1px solid var(--border);justify-content:space-between;gap:12px;padding:7px 0;display:flex}.card-meta{white-space:nowrap;align-items:center;gap:10px;display:flex}.review{max-width:640px}.review-card{border:1px solid var(--border);background:var(--bg-sidebar);text-align:center;border-radius:10px;flex-direction:column;justify-content:center;min-height:170px;padding:26px 22px;display:flex}.review-front{font-size:19px;font-weight:550}.review-back{font-size:17px}.review-rule{border:none;border-top:1px solid var(--border);width:100%;margin:16px 0}.rating-row{flex-wrap:wrap;gap:8px;display:flex}.rating{border:1px solid var(--border);background:var(--bg);min-width:110px;color:var(--text);border-radius:8px;flex-direction:column;flex:1;gap:2px;padding:10px;display:flex}.rating:hover{border-color:var(--accent)}.rating-1{border-left:3px solid #ef4444}.rating-2{border-left:3px solid #f59e0b}.rating-3{border-left:3px solid #22c55e}.rating-4{border-left:3px solid #3b82f6}.key-hint{opacity:.6}.source-chip{vertical-align:2px;margin-left:8px;font-size:11.5px}.inline-check{color:var(--text);flex-direction:row;align-items:flex-start;gap:9px;margin:12px 0;font-size:14px}.inline-check input{margin-top:3px}.page-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.page-head h1{margin-bottom:2px}.stat-row{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:18px 0;display:grid}.stat{border:1px solid var(--border);background:var(--bg-sidebar);border-radius:10px;padding:12px 14px}.stat-label{text-transform:uppercase;letter-spacing:.04em}.stat-value{margin:2px 0;font-size:24px;font-weight:600;line-height:1.2}.band-bar{border:1px solid var(--border);border-radius:6px;height:22px;display:flex;overflow:hidden}.band-seg{color:var(--bg);background:var(--slot-colour);justify-content:center;align-items:center;min-width:22px;font-size:11.5px;font-weight:600;display:flex}.band-key{margin-top:6px}.group-head{border-bottom:1px solid var(--border);margin-top:26px;padding-bottom:6px;font-size:16px}.topic-grid{grid-template-columns:repeat(auto-fill,minmax(215px,1fr));gap:10px;margin-top:12px;display:grid}.topic-tile{border:1px solid var(--border);background:var(--bg-sidebar);color:var(--text);text-align:left;border-radius:10px;flex-direction:column;gap:4px;padding:12px 13px;display:flex}.topic-tile:hover{border-color:var(--accent)}.tile-name{font-size:14px;font-weight:550;line-height:1.35}.tile-foot{align-items:center;gap:8px;margin-top:4px;display:flex}.tile-meta{margin-top:1px}.deck-grid{grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px;margin-bottom:8px;display:grid}.deck-tile{border:1px solid var(--border);background:var(--bg-sidebar);border-radius:10px;flex-direction:column;gap:5px;padding:13px 14px;display:flex}.deck-name{font-size:14px;font-weight:600}.resource-list{flex-direction:column;gap:3px;margin:4px 0 0;padding:0;font-size:13px;list-style:none;display:flex}.legacy-chip{margin-left:6px;font-size:11px}.work-date{white-space:nowrap;width:70px}.work-score{text-align:right;white-space:nowrap;font-weight:550}@media (width<=720px){.stat-row{grid-template-columns:repeat(2,1fr)}.topic-grid,.deck-grid{grid-template-columns:1fr}}.chip-guessed{border-style:dashed;border-color:var(--accent);color:var(--text)}.chip-action{margin-left:5px;font-size:12px}.needs-chip{border-style:dashed;border-color:var(--muted)}.prompt-strip{border:1px solid var(--accent);background:var(--accent-soft);border-radius:10px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;margin:14px 0;padding:12px 14px;display:flex}.resource-row{align-items:center;gap:7px;display:flex}.status-dot{border:1.5px solid var(--muted);background:0 0;border-radius:50%;flex-shrink:0;width:10px;height:10px;padding:0}.dot-in_progress{background:#f59e0b;border-color:#f59e0b}.dot-done{background:#22c55e;border-color:#22c55e}.name-in_progress{color:#d97706}.name-done{color:#16a34a}:root[data-theme=dark] .name-in_progress,:root[data-theme=midnight] .name-in_progress{color:#fbbf24}:root[data-theme=dark] .name-done,:root[data-theme=midnight] .name-done{color:#4ade80}@media (prefers-color-scheme:dark){:root:not([data-theme=light]):not([data-theme=warm]) .name-in_progress{color:#fbbf24}:root:not([data-theme=light]):not([data-theme=warm]) .name-done{color:#4ade80}}.wrong-link{white-space:nowrap;opacity:.75;margin-left:auto}.mistakes-card{max-width:680px;max-height:88vh;overflow-y:auto}.question-grid{max-height:180px;overflow-y:auto}.chip-wrong{color:#ef4444;border-color:#ef4444}.mistake-form{margin-top:14px}.danger-head{color:#ef4444;margin-top:34px}.danger-card{border-color:color-mix(in srgb, #ef4444 40%, var(--border))}button.danger{color:#ef4444}button.primary.danger{color:#fff;background:#dc2626}