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var(--color-border);border-top-color:var(--color-accent);border-radius:50%;width:36px;height:36px;animation:.8s linear infinite spin}.thanks-state-text{font-size:14px}@keyframes spin{to{transform:rotate(360deg)}}.thanks-footer{border-top:1px solid var(--color-border);color:var(--color-muted);padding:20px 40px 28px;font-size:13px}.thanks-footer a{color:var(--color-accent)}.viewer-page{background:var(--color-bg);flex-direction:column;height:100vh;display:flex;overflow:hidden}.viewer-header{background:var(--color-surface);border-bottom:1px solid var(--color-border);flex-shrink:0;grid-template-columns:auto 1fr auto;align-items:end;gap:16px;padding:12px 18px 0;display:grid}.viewer-header>.nav-brand{padding-bottom:10px}.viewer-header-tabs{align-items:flex-end;gap:4px;min-width:0;padding-bottom:0;display:flex;position:relative;bottom:-1px;overflow:hidden}.viewer-tab{background:var(--color-surface-2);color:var(--color-muted);border:1px solid var(--color-border);border-radius:var(--radius-md) var(--radius-md) 0 0;cursor:default;border-bottom:none;align-items:center;gap:8px;min-width:0;max-width:320px;padding:7px 8px 7px 12px;font-size:12.5px;font-weight:500;display:inline-flex;position:relative}.viewer-tab.active{background:var(--color-bg);color:var(--color-text);z-index:1;font-weight:600}.viewer-tab.active:before{content:"";background:var(--color-accent);border-radius:var(--radius-md) var(--radius-md) 0 0;height:2px;position:absolute;top:0;left:0;right:0}.viewer-tab-icon{font-family:var(--font-mono);background:color-mix(in oklab, var(--color-accent) 14%, transparent);color:var(--color-accent);letter-spacing:0;border-radius:4px;flex-shrink:0;padding:2px 5px;font-size:10px;font-weight:700}.viewer-tab-name{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.viewer-tab-template .viewer-tab-name{font-style:italic}.viewer-tab-close{appearance:none;color:var(--color-dim);cursor:pointer;background:0 0;border:none;border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;width:18px;height:18px;padding:0;font-family:inherit;font-size:12px;display:inline-flex}.viewer-tab-close:hover{background:var(--color-surface-2);color:var(--color-text)}.viewer-tab-new{appearance:none;border:1px dashed var(--color-border);color:var(--color-muted);border-radius:var(--radius-md) var(--radius-md) 0 0;cursor:pointer;background:0 0;height:28px;padding:0 10px;font-family:inherit;font-size:14px;font-weight:600}.viewer-tab-new:hover{background:var(--color-surface-2);color:var(--color-text);border-color:var(--color-muted)}.viewer-header-actions{align-items:center;gap:6px;display:flex}.viewer-header-link{color:var(--color-muted);border-radius:var(--radius-sm);padding:6px 10px;font-size:13px;text-decoration:none;transition:color .12s,background .12s}.viewer-header-link:hover{color:var(--color-text);background:var(--color-surface-2)}.viewer-main{flex:1;min-height:0;display:flex;position:relative}.drop-zone{text-align:center;border:2px dashed #0000;flex-direction:column;flex:1;justify-content:center;align-items:center;padding:48px;transition:background .12s,border-color .12s;display:flex}.drop-zone.over{background:color-mix(in oklab, var(--color-accent) 6%, transparent);border-color:var(--color-accent)}.drop-zone-icon{opacity:.7;margin-bottom:16px;font-size:56px}.drop-zone-title{letter-spacing:-.02em;color:var(--color-text);margin:0 0 10px;font-size:clamp(22px,3vw,30px);font-weight:800}.drop-zone-sub{color:var(--color-muted);max-width:500px;margin:0 0 24px;font-size:14px;line-height:1.7}.drop-zone-formats{color:var(--color-dim);font-size:12px;font-family:var(--font-mono);margin-top:18px}.drop-zone-foot{border-top:1px solid var(--color-border);color:var(--color-muted);max-width:480px;margin-top:36px;padding-top:24px;font-size:13px}.drop-zone-foot a{color:var(--color-accent)}.drop-zone-error{color:oklch(58% .18 30);margin-top:14px;font-size:13px}.viewer-pane{background:var(--color-surface);flex-direction:column;flex:1;min-width:0;min-height:0;display:flex;overflow:hidden}.viewer-pane-editor{background:var(--color-bg);border-right:1px solid var(--color-border)}.viewer-panes{flex:1;min-width:0;min-height:0;display:grid}.viewer-panes.pane-preview,.viewer-panes.pane-edit{grid-template-columns:1fr}.viewer-panes.pane-split{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.md-editor-host{flex-direction:column;flex:1;min-height:0;display:flex}.md-editor-loading{background:var(--color-bg);background-image:linear-gradient(90deg, transparent 0%, color-mix(in oklab, var(--color-accent) 6%, transparent) 50%, transparent 100%);background-size:200% 100%;flex:1;min-height:0;animation:1.4s linear infinite 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30);border-bottom:1px solid oklch(80% .08 30);padding:8px 18px;font-size:13px}[data-theme=dark] .viewer-error{color:oklch(95% .04 30);background:oklch(30% .06 30);border-bottom-color:oklch(50% .1 30)}.viewer-drop-overlay{background:color-mix(in oklab, var(--color-accent) 18%, transparent);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);pointer-events:none;z-index:50;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.viewer-drop-overlay-card{background:var(--color-surface);border:2px dashed var(--color-accent);border-radius:var(--radius-lg);text-align:center;color:var(--color-text);box-shadow:var(--shadow-2);padding:32px 40px;font-size:16px;font-weight:600}.drop-hint{background:var(--color-surface);border:1px solid var(--color-accent);border-radius:var(--radius-lg);box-shadow:0 12px 40px color-mix(in oklab, var(--color-accent) 28%, transparent), 0 4px 12px oklch(0% 0 0/.12);z-index:60;width:calc(100% - 32px);max-width:460px;animation:drop-hint-in .32s var(--ease-out) both, drop-hint-pulse 2.4s ease-in-out .6s infinite;align-items:flex-start;gap:14px;padding:14px 16px 14px 14px;display:flex;position:fixed;top:64px;left:50%;transform:translate(-50%)}@keyframes drop-hint-in{0%{opacity:0;transform:translate(-50%,-8px)}to{opacity:1;transform:translate(-50%)}}@keyframes drop-hint-pulse{0%,to{box-shadow:0 12px 40px color-mix(in oklab, var(--color-accent) 28%, transparent), 0 0 0 0 color-mix(in oklab, var(--color-accent) 0%, transparent)}50%{box-shadow:0 12px 40px color-mix(in oklab, var(--color-accent) 28%, transparent), 0 0 0 8px color-mix(in oklab, var(--color-accent) 14%, transparent)}}.drop-hint-arrow{color:var(--color-accent);flex-shrink:0;margin-top:1px;font-size:22px;animation:1.6s ease-in-out infinite drop-hint-arrow}@keyframes drop-hint-arrow{0%,to{transform:translateY(0)}50%{transform:translateY(-4px)}}.drop-hint-body{flex:1;min-width:0}.drop-hint-title{color:var(--color-text);align-items:center;gap:6px;margin-bottom:4px;font-size:13.5px;font-weight:700;display:flex}.drop-hint-emoji{font-size:16px}.drop-hint-sub{color:var(--color-muted);font-size:12px;line-height:1.55}.drop-hint-sub strong{color:var(--color-text)}.drop-hint-close{appearance:none;color:var(--color-dim);cursor:pointer;background:0 0;border:none;border-radius:4px;flex-shrink:0;align-self:flex-start;padding:2px 6px;font-family:inherit;font-size:13px}.drop-hint-close:hover{background:var(--color-surface-2);color:var(--color-text)}@media (prefers-reduced-motion:reduce){.drop-hint,.drop-hint-arrow{animation:none!important}}@media (width<=720px){.viewer-header{grid-template-columns:auto 1fr auto;gap:8px;padding:8px 10px 0}.viewer-header>.nav-brand{padding-bottom:8px;font-size:13px}.viewer-header-link{display:none}.viewer-header-actions{gap:4px;padding-bottom:6px}.viewer-header .segmented{padding:1px}.viewer-header .segmented button{padding:4px 8px;font-size:11px}.viewer-header .btn{padding:5px 10px;font-size:12px}.viewer-tab{max-width:180px;padding:6px 6px 6px 10px;font-size:11.5px}.viewer-tab-icon{display:none}.viewer-tab-new{height:26px;padding:0 8px}.preview-doc{padding:28px 22px 80px;font-size:16px}.preview-doc h1{font-size:1.7em}.preview-doc pre{border-radius:8px;padding:12px 14px;font-size:12.5px}}@media (width<=480px){.viewer-header>.nav-brand{letter-spacing:-.02em;gap:4px}.viewer-header>.nav-brand .nav-dot{width:8px;height:8px}.viewer-header-actions .btn:not(.primary){padding:5px 8px}.viewer-tab{max-width:130px}}.preview-scroll{background:var(--color-surface);flex:1;width:100%;overflow-y:auto}.preview-doc{max-width:820px;font-family:var(--font-serif);color:var(--color-text);margin:0 auto;padding:56px 60px 120px;font-size:17px;line-height:1.75}.viewer-panes.pane-preview .preview-doc{max-width:min(1280px,92%);padding:56px clamp(24px,4vw,80px) 120px}.preview-doc h1,.preview-doc h2,.preview-doc h3,.preview-doc h4{font-family:var(--font-ui);letter-spacing:-.015em;margin:1.8em 0 .5em;font-weight:700;line-height:1.25}.preview-doc h1{border-bottom:1px solid var(--color-border);margin-top:0;padding-bottom:.4em;font-size:2.1em}.preview-doc h2{font-size:1.55em}.preview-doc h3{font-size:1.25em}.preview-doc p{margin:.9em 0}.preview-doc a{color:var(--color-accent)}.preview-doc code{font-family:var(--font-mono);background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:4px;padding:2px 6px;font-size:.88em}.preview-doc pre{color:oklch(94% .01 260);background:oklch(18% .015 260);border-radius:10px;padding:18px 22px;font-size:13.5px;line-height:1.6;overflow-x:auto}.preview-doc pre code{color:inherit;background:0 0;border:none;padding:0}.preview-doc blockquote{border-left:3px solid var(--color-accent);background:var(--color-accent-soft);margin:1.2em 0;padding:.6em 1.2em}.preview-doc table{border-collapse:collapse;margin:1.2em 0}.preview-doc th,.preview-doc td{border:1px solid var(--color-border);padding:8px 12px}.preview-doc img{border-radius:8px;max-width:100%;height:auto}.mermaid-block,.mermaid-loading,.mermaid-error{margin:1.4em 0}.mermaid-block{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);height:440px;max-height:70vh;position:relative;overflow:hidden}.mermaid-block:fullscreen{background:var(--color-bg);border-radius:0;height:100vh;max-height:100vh}.mermaid-viewport{cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none;width:100%;height:100%;position:relative;overflow:hidden}.mermaid-viewport:active{cursor:grabbing}.mermaid-stage{transform-origin:0 0;will-change:transform;position:absolute;top:0;left:0}.mermaid-svg-host{width:100%;height:100%}.mermaid-svg-host>svg{display:block;width:100%!important;max-width:none!important;height:100%!important;max-height:none!important}.mermaid-controls{background:color-mix(in oklab, var(--color-surface) 92%, transparent);-webkit-backdrop-filter:blur(8px);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-1);z-index:2;align-items:center;gap:2px;padding:3px;font-size:13px;display:flex;position:absolute;top:10px;right:10px}.mermaid-controls button{appearance:none;color:var(--color-text);border-radius:var(--radius-sm);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;width:26px;height:26px;font-family:inherit;font-size:14px;font-weight:600;line-height:1;display:inline-flex}.mermaid-controls button:hover{background:var(--color-surface-2)}.mermaid-scale-label{text-align:center;font-variant-numeric:tabular-nums;min-width:38px;color:var(--color-muted);padding:0 2px;font-size:11px;display:inline-block}.mermaid-loading{opacity:.55}.mermaid-error{background:color-mix(in oklab, oklch(60% .15 30) 12%, var(--color-surface-2));border:1px solid color-mix(in oklab, oklch(60% .15 30) 35%, var(--color-border));border-radius:var(--radius-md);color:var(--color-text);padding:14px 18px;font-size:13px}.mermaid-error pre{margin-top:8px;font-size:12px}.html-preview{background:var(--color-surface);border:none;flex:1;width:100%;height:100%}.pdf-preview{flex:1;display:flex}.pdf-frame{border:none;flex:1;width:100%;height:100%}.modal-overlay{background:color-mix(in oklab, var(--color-text) 40%, transparent);-webkit-backdrop-filter:blur(6px);z-index:200;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.modal.edit-prompt{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);text-align:center;max-width:440px;box-shadow:var(--shadow-2);padding:32px 32px 28px}.edit-prompt-icon{background:var(--color-accent-soft);width:56px;height:56px;color:var(--color-accent);border-radius:50%;justify-content:center;align-items:center;margin-bottom:14px;font-size:24px;display:inline-flex}.modal.edit-prompt h2{letter-spacing:-.01em;margin:0 0 10px;font-size:20px;font-weight:700}.modal.edit-prompt p{color:var(--color-muted);margin:0 0 20px;font-size:14px;line-height:1.7}.modal.edit-prompt strong{color:var(--color-text)}.edit-prompt-actions{justify-content:center;gap:10px;display:flex}