:root{--bg:#f6f3ee;--ink:#243033;--muted:#657377;--line:#e3ddd2;--accent:#5c7ac8;--soft:#e8f0ff;--shadow:0 20px 50px rgba(48,39,28,.12)}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,sans-serif;color:var(--ink);background:radial-gradient(circle at top left,#fff7df 0,transparent 34%),var(--bg)}.site-header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:34px clamp(18px,5vw,64px) 20px}.eyebrow{margin:0 0 6px;color:var(--accent);font-size:12px;font-weight:900;letter-spacing:.13em;text-transform:uppercase}h1,h2,h3{margin:0;line-height:1.08}h1{font-size:clamp(32px,5vw,58px);letter-spacing:-.055em}.subtitle{max-width:780px;margin:12px 0 0;color:var(--muted);line-height:1.6}button{border:0;border-radius:16px;font-weight:900;cursor:pointer;transition:.18s}button:hover{transform:translateY(-1px)}.primary-btn{padding:14px 18px;background:var(--ink);color:#fff;box-shadow:0 12px 28px rgba(36,48,51,.22);white-space:nowrap}.secondary-btn{padding:11px 14px;background:#fff;color:var(--ink);border:1px solid var(--line)}.full{width:100%}.app-shell{display:grid;grid-template-columns:minmax(300px,390px) 1fr;gap:24px;padding:20px clamp(18px,5vw,64px) 60px;align-items:start}.control-panel{position:sticky;top:18px;display:grid;gap:16px;max-height:calc(100vh - 36px);overflow-y:auto;padding-right:8px}.panel-card,.preview-area{background:rgba(255,255,255,.9);border:1px solid rgba(229,222,212,.92);border-radius:28px;box-shadow:var(--shadow)}.panel-card{padding:22px}.panel-card h2{font-size:18px;margin-bottom:18px}label{display:grid;gap:8px;margin:14px 0;color:#405054;font-size:13px;font-weight:850}input,select{width:100%;border:1px solid var(--line);background:#fff;border-radius:14px;padding:12px 13px;color:var(--ink);font:inherit}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.option-card{margin:16px 0;padding:12px 14px;border-radius:18px;background:var(--soft);border:1px solid rgba(92,122,200,.16)}.toggle-row{display:flex;align-items:center;gap:10px;margin:10px 0}.toggle-row input{width:18px;height:18px;accent-color:var(--accent)}.button-row{display:grid;gap:10px;margin-top:16px}.info-list{display:grid;gap:9px;color:var(--muted);font-size:13px;font-weight:750}.info-list div{display:flex;justify-content:space-between;gap:14px;padding-bottom:9px;border-bottom:1px solid var(--line)}.info-list strong{color:var(--ink)}.preview-area{padding:22px;overflow:auto}.preview-toolbar{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:18px}.preview-toolbar h2{font-size:24px;letter-spacing:-.03em}.toolbar-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:10px}.page-indicator{padding:10px 13px;background:var(--soft);border-radius:999px;font-size:12px;font-weight:900}.worksheet-preview{display:grid;gap:22px;justify-items:center;padding:14px 0 30px}.page{position:relative;width:8.5in;height:11in;padding:.42in 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#d8d8d8;min-height:28px}.work-space{display:grid;gap:8px;margin-top:12px}.work-space span{border-bottom:1px solid #ddd;min-height:18px}.answer-key-list{position:relative;z-index:1;display:grid;grid-template-columns:repeat(2,1fr);gap:10px 18px;font-size:15px;font-weight:800}.answer-key-list div{padding:10px 12px;border:1px solid var(--worksheet-line,#d7e2ff);border-radius:12px;background:rgba(255,255,255,.78)}.footer-note{position:absolute;z-index:1;bottom:24px;left:0;right:0;text-align:center;color:#a0a0a0;font-size:10px;font-weight:750}.theme-school{--worksheet-accent:#5c7ac8;--worksheet-soft:#dff0ff;--worksheet-line:#d7e2ff}.theme-cute{--worksheet-accent:#d9829d;--worksheet-soft:#ffe0ef;--worksheet-line:#f0d5df}.theme-minimal{--worksheet-accent:#31383d;--worksheet-soft:#f3f3f3;--worksheet-line:#d8dde0}.theme-colorful{--worksheet-accent:#2f8f83;--worksheet-soft:#e2f6ef;--worksheet-line:#cfe8df}.single-page-only 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