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button.active{color:#76a9fa;background:#374151}.brand-mark{display:inline-flex;flex:none;align-items:center;justify-content:center;line-height:1}.topbar h1{font-weight:500}.preview-header h2{font-size:21px}.preset-row.active{color:var(--primary);border-color:var(--primary);background:var(--primary-soft)}.preset-row.active strong{color:var(--primary)}.preset-row.active small{color:color-mix(in srgb,var(--primary) 74%,var(--ink))}:root[data-theme=dark] .preset-row.active{color:#fff;border-color:#3f83f8;background:#1e3a5f;box-shadow:0 0 0 1px #3f83f838,var(--shadow-soft)}:root[data-theme=dark] .preset-row.active strong{color:#fff}:root[data-theme=dark] .preset-row.active small{color:#bfdbfe}.guided-tool-shell{min-height:100vh;color:var(--ink);background:var(--canvas)}.guided-tool-content{max-width:1180px;margin:0 auto;padding:48px 28px}.guided-tool-hero{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:end;padding-bottom:30px;border-bottom:1px solid var(--border-light)}.guided-tool-hero .wide-button{width:auto;margin-top:0;white-space:nowrap}.guided-tool-hero .guided-hero-action{color:var(--ink);border-color:var(--border-light);background:var(--surface)}.guided-tool-hero .guided-hero-action:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-soft)}.guided-tool-hero h1{margin:10px 0 0;max-width:760px;color:var(--ink);font-size:clamp(30px,3.8vw,46px);line-height:1.08;font-weight:700}.guided-tool-hero p:not(.mono-label),.guided-preset-card p:not(.mono-label){margin:12px 0 0;max-width:720px;color:var(--muted);font-size:15px;line-height:1.55}.guided-upload-panel{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);gap:16px;margin-top:24px}.guided-drop-zone,.guided-suggestion-card{border:1px solid var(--border-light);border-radius:8px;background:var(--surface);box-shadow:var(--shadow-soft)}.guided-drop-zone{min-height:178px;display:grid;grid-template-columns:54px minmax(0,1fr) 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var(--border-light);border-radius:8px;padding:18px;background:var(--surface)}.guided-preview-header{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between}.guided-preview-header h2{margin:4px 0 0;color:var(--ink);font-size:20px;line-height:1.25;font-weight:700}.guided-preview-header p{margin:6px 0 0;max-width:560px;color:var(--muted);font-size:13px;line-height:1.5}.guided-preview-nav{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:flex-end}.guided-preview-stage{overflow:auto;border:1px solid var(--border-light);border-radius:8px;padding:20px;background:linear-gradient(var(--border-light) 1px,transparent 1px),linear-gradient(90deg,var(--border-light) 1px,transparent 1px),var(--surface-muted);background-size:24px 24px}.guided-preview-stage.duplex .preview-spread{justify-content:center}.guided-preview-stage 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var(--border-light);border-radius:8px;padding:22px;background:var(--surface);box-shadow:var(--shadow-soft);cursor:pointer;text-align:left}.guided-preset-card.selected{border-color:var(--primary);background:linear-gradient(135deg,color-mix(in srgb,var(--primary) 10%,transparent),transparent 52%),var(--surface);box-shadow:0 0 0 1px color-mix(in srgb,var(--primary) 24%,transparent),var(--shadow-soft)}.guided-preset-card:hover{border-color:#3f83f88c;box-shadow:var(--shadow-card)}.guided-preset-card:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.guided-preset-icon{width:52px;height:52px;display:grid;place-items:center;border-radius:8px;color:#fff;background:var(--primary)}.guided-preset-card h2{margin:6px 0 0;color:var(--ink);font-size:24px;line-height:1.2;font-weight:700}.guided-preset-details{display:flex;flex-wrap:wrap;gap:8px}.guided-preset-details span{min-height:30px;display:inline-flex;align-items:center;border:1px solid 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