:root{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#1b2539;background:#eef1f6;font-synthesis:none;--ink:#182238;--muted:#626d80;--line:#dee3eb;--accent:#137565;--mint:#a7eddb}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer;border:1px solid #d6dce5;background:white;color:var(--ink);border-radius:7px;padding:10px 14px;font-size:14px;font-weight:600;transition:background .15s,border-color .15s}button:hover{background:#edf3f4;border-color:#9eb7b5}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #36bfa8;outline-offset:3px}input:focus,select:focus{outline:2px solid #13836e;outline-offset:2px}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}[hidden]{display:none!important}.app-header{min-height:88px;background:var(--ink);color:#fff;padding:20px 4%;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;gap:13px;align-items:center;color:white;font-weight:650;font-size:20px;letter-spacing:-.5px}.brand:hover{text-decoration:none}.brand small{display:block;font-size:10px;letter-spacing:1.7px;font-weight:500;margin-top:7px;color:#b0bbcd}.brand-mark{width:44px;height:44px;background:var(--mint);color:var(--ink);border-radius:10px;display:grid;place-content:center;position:relative;font-size:25px;font-weight:800}.brand-mark span{font-size:13px;position:absolute;right:3px;top:1px}.header-right{display:flex;align-items:center;gap:25px}.qualification{font-size:11px;letter-spacing:1.4px;color:#c7d0df}.quiet{background:transparent}.app-header .quiet{color:white;border-color:#465064}.app-header .quiet:hover{background:#28344c}#connection-indicator{color:var(--mint);margin-left:10px}#builder{max-width:1440px;padding:46px 4% 20px;margin:auto}.page-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:40px}.eyebrow{color:var(--accent);font-size:11px;letter-spacing:1.6px;font-weight:750}h1{font-size:clamp(28px,3vw,38px);letter-spacing:-1.25px;margin:12px 0}h2{font-size:18px;letter-spacing:-.35px;margin:0}p{line-height:1.6}.page-heading p{color:var(--muted);font-size:16px;margin:8px 0 0}.step-indicator{display:flex;align-items:center;gap:12px;font-size:13px;color:#8a93a2}.step-indicator span{white-space:nowrap}.step-indicator b{margin-left:5px;font-weight:500}.step-indicator .current{color:#167761}.step-indicator i{width:24px;height:1px;background:#c9d1db}.section-heading,.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.section-heading{margin-bottom:18px}.section-heading a{font-size:13px}.step-number{font-size:12px;font-weight:550;color:#83908f;margin-right:10px;letter-spacing:1px}.component-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:32px}.component-card{text-align:left;padding:22px 23px;min-height:148px;position:relative;border:1px solid #d5dce7;border-radius:10px;background:#fff;box-shadow:0 2px 3px #18223804}.component-card small{display:block;font-size:11px;letter-spacing:1.5px;color:#788196;font-weight:650;margin-bottom:12px}.component-card strong{font-size:18px;font-weight:650;line-height:1.4;display:block;max-width:90%;letter-spacing:-.3px}.component-card .component-number{position:absolute;right:18px;top:17px;color:#a4adba;font-size:14px}.component-card[aria-pressed=true]{background:#e1f5ee;border:2px solid #197e69;padding:21px 22px}.component-card[aria-pressed=true] small{color:#12624f}.component-card[aria-pressed=true] .component-number{color:#12624f}.builder-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:25px;align-items:start}.topics-panel,.settings-panel{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}.topics-panel{padding:26px}.settings-panel{padding:25px;position:sticky;top:20px}.count-tag{font-size:12px;background:#e8f4ef;color:#196c5b;padding:5px 9px;border-radius:5px;white-space:nowrap}.search-field{margin-top:23px;display:flex;align-items:center;gap:10px;background:#f6f8fb;border:1px solid #dee4ed;padding:0 13px;border-radius:6px}.search-field span{font-size:26px;color:#7a8798}.search-field input{width:100%;padding:13px 0;background:transparent;border:0;font-size:14px;color:var(--ink)}.panel-note{font-size:13px;color:#6d788a;margin:13px 0 25px}.area-heading{font-size:12px;letter-spacing:1px;text-transform:uppercase;color:#758093;margin:24px 0 9px;font-weight:700}.topic-section{border-bottom:1px solid #e7eaf0}.topic-row{display:flex;gap:9px;align-items:center;min-height:64px;padding:10px 0}.topic-row label{display:flex;gap:13px;align-items:center;flex:1;cursor:pointer;line-height:1.4}.topic-code{color:var(--accent);font-size:12px;font-weight:650;display:block;margin-bottom:4px}.topic-row strong{font-size:15px;font-weight:550}.topic-row input,.topic-child input,.type-options input{accent-color:#177d68;width:17px;height:17px;flex-shrink:0}.expand-topic{border:0;background:transparent;width:34px;height:34px;padding:5px;font-size:20px;font-weight:400;color:#7f899a}.topic-children{margin:0 0 12px 31px;padding:3px 0 3px 16px;border-left:2px solid #e1efe9}.topic-child{display:flex;gap:9px;align-items:flex-start;padding:8px 0;font-size:14px;line-height:1.5;cursor:pointer}.source-note{font-size:12px;color:#7b8594;line-height:1.7;margin-top:25px;padding-top:17px;border-top:1px solid #e8ecf1}.source-note a{text-decoration:underline}fieldset{border:0;margin:24px 0;padding:0}legend{font-size:14px;font-weight:650;margin-bottom:13px}.type-options{display:grid;gap:14px}.type-options label{display:flex;gap:10px;align-items:flex-start;cursor:pointer;font-size:14px}.type-options small{display:block;color:#7c8594;font-size:12px;margin-top:3px}.settings-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.settings-row label{font-size:13px;font-weight:550}select{display:block;width:100%;border:1px solid #d9dfe7;border-radius:6px;padding:10px 8px;background:white;color:var(--ink);font-size:13px;margin-top:8px}.selection-summary{margin:24px 0 20px;background:#f5f7f9;padding:15px;border-radius:6px}.selection-summary>span{font-size:10px;letter-spacing:1.2px;font-weight:700;color:#758093}#selection-summary{font-size:13px;line-height:1.6;margin-top:7px;color:#4e5a6d}.text-button{padding:0;border:0;background:transparent;color:var(--accent);font-size:12px;margin-top:8px}.primary{background:var(--ink);color:white;border-color:var(--ink)}.primary:hover{background:#293a58;border-color:#293a58}.generate{width:100%;display:flex;align-items:center;justify-content:space-between;padding:16px;font-size:14px}.generate b{color:var(--mint);font-size:18px}.generation-note{font-size:11px;color:#798394;text-align:center;margin:12px 0 0}#generation-status{font-size:13px;line-height:1.6;margin-top:15px;color:#9d3b29}#generation-status.busy{color:#126f5a}#generation-status.busy:before{content:'◌';display:inline-block;animation:spin 1s linear infinite;margin-right:7px}@keyframes spin{to{transform:rotate(360deg)}}.app-footer{display:flex;justify-content:space-between;gap:20px;color:#838c9a;font-size:12px;padding:25px 0 10px}.empty-search{padding:25px 0;color:#707c8d}dialog{border:1px solid #d9e1ea;border-radius:12px;padding:30px;max-width:470px;width:calc(100% - 32px);box-shadow:0 20px 80px #14203744;color:var(--ink)}dialog::backdrop{background:#111c36aa;backdrop-filter:blur(3px)}.dialog-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.icon-button{border:0;padding:0;font-size:27px}dialog h2{font-size:23px}dialog p{font-size:14px;color:#657286}dialog label{display:block;font-size:14px;font-weight:600}dialog input{display:block;width:100%;margin-top:9px;padding:12px;border:1px solid #cdd6e2;border-radius:6px}dialog .primary{width:100%;margin-top:10px}.dialog-note{font-size:12px!important}#editor{background:#3a3f47;padding:20px;min-height:calc(100vh - 88px)}.editor-heading,.teacher-toolbar,.editor-note,#editor-status{max-width:1050px;margin-left:auto;margin-right:auto}.editor-heading{display:flex;justify-content:space-between;align-items:center;color:#d7dfe8;font-size:13px;margin-bottom:15px;gap:15px}.editor-heading .quiet{color:white;border-color:#707681}.teacher-toolbar{position:sticky;top:10px;z-index:5;background:#fff;border-radius:8px;padding:12px;display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;box-shadow:0 3px 16px #0002}.teacher-toolbar>div{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.edit-hint{font-size:12px;color:#728091}.copy-label{display:flex;align-items:center;font-size:12px;gap:8px;margin-right:6px}.copy-label select{width:auto;margin:0}.teacher-toolbar button{font-size:12px;padding:10px}.editor-note{font-size:12px;color:#d2d8e2;line-height:1.5}.paper-scroll{overflow-x:auto;display:flex;justify-content:safe center;padding:15px 0 40px}#editor-status{color:#ffd4a3;font-size:14px;margin-bottom:15px}.export-stage{position:absolute;left:0;top:0;z-index:-10;pointer-events:none;background:white}.print-clone{display:none}
@media(max-width:1050px){.step-indicator{display:none}.builder-grid{grid-template-columns:minmax(0,1fr) 300px}.topics-panel,.settings-panel{padding:20px}.component-card strong{font-size:16px}.edit-hint{display:none}}@media(max-width:760px){.app-header{padding:17px 20px}.qualification{display:none}.brand{font-size:17px}.brand small{font-size:8px;letter-spacing:1px}.brand-mark{width:37px;height:37px}.app-header button{font-size:12px;padding:9px}#builder{padding:30px 18px}.page-heading{margin-bottom:28px}.page-heading p{font-size:14px}.component-grid{grid-template-columns:1fr;gap:9px}.component-card{padding:14px 18px;min-height:0}.component-card[aria-pressed=true]{padding:13px 17px}.component-card small{margin-bottom:4px;font-size:10px}.component-card strong{max-width:95%;font-size:16px}.component-number{display:none}.builder-grid{grid-template-columns:1fr}.settings-panel{position:static}.section-heading a{font-size:11px}h2{font-size:16px}.topics-panel{padding:20px 17px}.app-footer{flex-direction:column;gap:6px}.teacher-toolbar{position:relative;top:0}#editor{padding:14px}.editor-heading{flex-wrap:wrap}.paper-scroll{justify-content:flex-start}.type-options{grid-template-columns:1fr 1fr;gap:17px}.source-note{font-size:11px}.header-right{gap:0}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

.return-button{width:100%;margin-top:10px;font-size:13px}