:root{--bg-primary:#fafafa;--bg-secondary:#f4f4f5;--bg-tertiary:#e4e4e7;--bg-code:#f4f4f5;--text-primary:#18181b;--text-secondary:#52525b;--text-muted:#a1a1aa;--border:#e4e4e7;--border-strong:#d4d4d8;--accent:#6366f1;--accent-light:#818cf8;--accent-bg:#6366f11a;--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-mono:"JetBrains Mono","Fira Code","SF Mono",monospace;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 6px #0000000d;--shadow-focus:0 0 0 2px var(--accent)}[data-theme=dark]{--bg-primary:#09090b;--bg-secondary:#18181b;--bg-tertiary:#27272a;--bg-code:#1a1a1f;--text-primary:#fafafa;--text-secondary:#a1a1aa;--text-muted:#52525b;--border:#27272a;--border-strong:#3f3f46;--accent:#818cf8;--accent-light:#a5b4fc;--accent-bg:#818cf81a;--shadow-sm:0 1px 2px #0003;--shadow-md:0 4px 6px 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strong{color:var(--text-primary);font-weight:600}.block-paragraph em{color:var(--accent-light);font-style:italic}.block-paragraph code{font-family:var(--font-mono);background:var(--bg-tertiary);border-radius:var(--radius-sm);color:var(--accent);padding:.15em .4em;font-size:.875em}.block-paragraph a{color:var(--accent-light);text-decoration:underline;-webkit-text-decoration-color:var(--accent);text-decoration-color:var(--accent);text-underline-offset:2px;transition:all .15s}.block-paragraph a:hover{color:var(--accent);-webkit-text-decoration-color:var(--accent-light);text-decoration-color:var(--accent-light)}.block-paragraph del{color:var(--text-muted);text-decoration:line-through}.block-paragraph mark{color:inherit;background:linear-gradient(120deg,#ffe6004d 0%,#ffc80066 100%);border-radius:2px;padding:.1em .2em}[data-theme=dark] .block-paragraph mark{background:linear-gradient(120deg,#ffc80033 0%,#ffb4004d 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.drag-handle{top:2.25rem}.sortable-block.is-dragging{z-index:1}.sortable-block.is-dragging .sortable-block-content{opacity:.4}.sortable-block.is-dragging .drag-handle{opacity:1;color:var(--accent)}.sortable-block.is-over:before{content:"";background:linear-gradient(90deg,var(--accent),var(--accent-light));height:3px;box-shadow:0 0 8px var(--accent);border-radius:2px;animation:1s ease-in-out infinite drop-indicator-pulse;position:absolute;top:-2px;left:32px;right:0}@keyframes drop-indicator-pulse{0%,to{opacity:1;transform:scaleX(1)}50%{opacity:.8;transform:scaleX(.98)}}.drag-overlay-block{background:var(--bg-secondary);border:1px solid var(--border-strong);border-radius:var(--radius-md);opacity:.95;align-items:flex-start;gap:0;max-width:600px;padding:.5rem 1rem .5rem 2.5rem;display:flex;position:relative;overflow:hidden;transform:rotate(1deg)scale(1.02);box-shadow:0 20px 40px #00000026,0 8px 16px #0000001a,0 0 0 1px #6366f133}[data-theme=dark] 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