:root{--paper:#fff;--card:#fff;--cloud:#f1f7fc;--line:#142d481a;--line-strong:#142d482e;--ink:#16304a;--slate:#50687f;--mist:#93a6b8;--indigo-50:#eaf7ff;--indigo-100:#cfecfd;--indigo:#3db8f5;--indigo-700:#1f93cd;--indigo-900:#10364f;--spark-50:#fff3ef;--spark-100:#ffded4;--spark:#ff6b4a;--spark-700:#e2512f;--gauge-ok:#1f93cd;--gauge-wrong:#8c1b3d;--high:#1fa971;--high-100:#e2f5ec;--mid:#e8a93b;--mid-100:#fcf1dc;--low:#e5544b;--low-600:#c6392f;--low-100:#fbe7e5;--font-display:"Inter", system-ui, sans-serif;--font-serif:"Inter", system-ui, sans-serif;--font-body:"Inter", system-ui, sans-serif;--font-mono:"IBM Plex Mono", ui-monospace, monospace;--font-ar:"Cairo", "IBM Plex Sans Arabic", sans-serif;--r-sm:12px;--r-md:18px;--r-lg:24px;--r-xl:28px;--r-pill:999px;--r-control:16px;--sh-xs:none;--sh-sm:0 2px 8px #16304a14;--sh-md:0 12px 30px #16304a1f;--ring:0 0 0 4px #3db8f559;--e-out:cubic-bezier(.2, .7, .2, 1);--t-fast:.12s;--t-base:.18s;--bg:var(--paper);--panel:var(--card);--muted:var(--slate);--text:var(--ink);--accent:var(--indigo);--radius:var(--r-md)}.card{box-shadow:var(--sh-sm);border-radius:var(--r-lg);border:0}h2{letter-spacing:-.02em;font-weight:800}.card>strong{color:var(--spark);font-weight:700}*{box-sizing:border-box}body{font-family:var(--font-body);background:var(--paper);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;font-size:17px;line-height:1.6}html[lang=ar] body,html[lang=ar] button,html[lang=ar] input,html[lang=ar] select,html[lang=ar] textarea,html[lang=ar] h1,html[lang=ar] h2,html[lang=ar] h3,html[lang=ar] h4,html[lang=ar] 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var(--line);background:var(--cloud);border-radius:var(--r-md);flex-direction:column;gap:6px;min-height:70px;padding:10px;display:flex}.ex-card{flex-direction:column;gap:10px;display:flex}.ex-ok{color:var(--high);font-weight:600;font-family:var(--font-mono)}.ex-partial{color:var(--spark-700);font-weight:600;font-family:var(--font-mono)}.ex-list{flex-direction:column;gap:10px;margin-top:8px;display:flex}.ex-correct{color:var(--high);font-size:13px}.chip.ok,.gap.ok{border-color:var(--high);background:var(--high-100);color:#0f7a4f}.chip.err,.gap.err{border-color:var(--low);background:var(--low-100);color:#b23a33}select.ok{border-color:var(--high)}select.err{border-color:var(--low)}.status-pill{font-family:var(--font-mono);border-radius:var(--r-pill);margin-inline-start:6px;padding:2px 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8px;display:flex}.task-match-slot.ok{border-color:var(--high);border-style:solid}.task-match-slot.bad{border-color:var(--low);border-style:solid}.task-match-img{object-fit:contain;border-radius:var(--r-sm);max-block-size:56px;max-inline-size:110px;display:block}.match-image-pairs{flex-direction:column;gap:8px;display:flex}.match-image-row{align-items:center;gap:8px;display:flex}.match-image-row>input{flex:1}.match-image-thumb{object-fit:cover;border-radius:var(--r-sm);border:1px solid var(--line);block-size:40px;inline-size:56px}.task-cats{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-block-start:12px;display:grid}.task-cat{border:1px solid var(--line);border-radius:var(--r-md);background:var(--cloud);min-block-size:90px;padding:12px}.task-cat-label{margin-block-end:8px;display:block}.task-mcq{flex-direction:column;gap:8px;display:flex}.task-mcq-opt{border:1px solid var(--line-strong);border-radius:var(--r-control);cursor:pointer;align-items:center;gap:8px;padding:8px 12px;display:flex}.task-mcq-opt.active{border-color:var(--indigo);background:var(--indigo-50)}.task-mcq-opt.ok{border-color:var(--high);background:var(--high-100)}.task-mcq-opt.bad{border-color:var(--low);background:var(--low-100)}.pick-chips{flex-wrap:wrap;gap:6px;margin-block:2px;display:flex}.pick-chip{border:1px solid var(--line);border-radius:var(--r-pill);color:var(--slate);cursor:pointer;white-space:nowrap;background:var(--card);align-items:center;gap:6px;padding:4px 10px;font-size:13px;line-height:1.4;display:inline-flex;position:relative}.pick-chip:hover{border-color:var(--indigo);color:var(--ink)}.pick-chip.on{border-color:var(--indigo);background:var(--indigo-50);color:var(--indigo-700);font-weight:500}.pick-chip input{opacity:0;pointer-events:none;block-size:1px;inline-size:1px;position:absolute}.pick-chip:focus-within{outline:2px solid var(--indigo);outline-offset:1px}.tree-section-head .tree-del,.tree-unit-head .tree-del{block-size:26px;inline-size:26px;color:var(--mist);flex:none;justify-content:center;align-items:center;padding:0;display:inline-flex}.tree-section-head .tree-del:hover,.tree-unit-head .tree-del:hover{color:var(--low,#8c1b3d)}.tree-edit{block-size:26px;inline-size:26px;color:var(--mist);cursor:pointer;background:0 0;border:none;flex:none;justify-content:center;align-items:center;padding:0;display:inline-flex}.tree-edit:hover{color:var(--indigo);background:0 0}.tree-section-head .tree-edit,.tree-unit-head .tree-edit{margin-inline-start:auto}.tree-section-head .tree-edit~.tree-add,.tree-unit-head .tree-edit~.tree-add{margin-inline-start:0}.tf-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.tf-row{border:1px solid var(--line);border-radius:var(--r-md);background:var(--card);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:8px 10px;display:flex}.tf-text{flex:1;min-inline-size:180px}.tf-choice{flex:none;gap:6px;display:inline-flex}.tg-connected{color:var(--high,#1a7f5c);align-items:center;gap:6px;font-weight:500;display:inline-flex}.assign-form{flex-direction:column;gap:12px;display:flex}.assign-form>label,.assign-form>.field{flex-direction:column;gap:4px;display:flex}.catalog-group+.catalog-group{margin-block-start:24px}.catalog-cards{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;display:grid}.catalog-card{text-align:start;cursor:pointer;border:1px solid var(--line);background:var(--card);color:var(--ink);flex-direction:column;align-items:flex-start;gap:6px;font-family:inherit;font-size:15px;font-weight:500;text-decoration:none;display:flex}.catalog-card:hover{transform:none}.catalog-card>strong{font-family:var(--font-display);color:var(--ink);font-size:16px}.catalog-card>.muted{font-size:13px;font-weight:400}.catalog-card:hover{border-color:var(--indigo)}.catalog-row{align-items:center;gap:12px;display:flex}.catalog-row .assign-row-main{flex:1;min-inline-size:0}.level-tabs .level-empty-note{color:var(--mist);margin-inline-start:6px;font-size:11px;font-weight:400}.bank-translation{color:var(--indigo-700);font-weight:500}.assign-row-main>.link-button{text-align:start;align-self:flex-start}.bank-row{flex-direction:column;align-items:stretch}.bank-row-top{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.sense-list{border-block-start:1px solid var(--line);counter-reset:sense;flex-direction:column;gap:12px;margin:10px 0 0;padding-block-start:10px;padding-inline:22px 0;font-size:15px;list-style:none;display:flex}.sense-row{counter-increment:sense;flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.sense-row:before{content:counter(sense);inline-size:14px;font-family:var(--font-mono);color:var(--mist);flex:none;margin-inline-start:-18px;padding-block-start:3px;font-size:12px}.sense-body{flex-direction:column;flex:260px;gap:2px;min-inline-size:0;display:flex}.sense-body>.link-button{text-align:start;align-self:flex-start}.sense-pos{text-transform:lowercase;letter-spacing:.04em;color:var(--mist);font-size:12px;font-style:normal}