:root{color-scheme:dark;--bg: #0f0f14;--card: #181822;--card-border: #2a2a38;--text: #eaeaf0;--muted: #9494a8;--accent: #7c9cff;--accent-dim: #5a7fd9;--err: #ff8a8a;--post-frame-border: 1px solid var(--card-border);--post-frame-radius: 10px;--post-panel-radius: 14px}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}code{font-size:.88em;color:var(--accent)}.app-shell{display:flex;min-height:100vh;align-items:stretch}.lane-nav{--lane-nav-bg: #12121a;position:sticky;top:0;align-self:flex-start;z-index:2;display:flex;flex-direction:column;align-items:flex-start;gap:.55rem;min-height:100vh;width:10.5rem;flex-shrink:0;padding:1rem .85rem;background:var(--lane-nav-bg);border-right:1px solid var(--card-border)}.brand-logo{width:2.75rem;height:2.75rem;object-fit:cover;align-self:flex-start;border-radius:var(--post-frame-radius);border:var(--post-frame-border);flex-shrink:0}.main{flex:1;min-width:0;max-width:none;width:100%;margin:0;padding:1.25rem clamp(1rem,2.5vw,2.25rem) 2rem}.lane-btn{--lane-frame: var(--card-border);align-self:stretch;width:100%;text-align:left;padding:.62rem .75rem;border:2px solid var(--lane-frame);border-radius:var(--post-frame-radius);cursor:pointer;background:color-mix(in srgb,var(--lane-frame) 16%,var(--lane-nav-bg));color:var(--text);font-size:.88rem;font-weight:650;box-sizing:border-box}.lane-btn:disabled{opacity:.45;cursor:not-allowed}.lane-btn:not(:disabled):hover{background:color-mix(in srgb,var(--lane-frame) 30%,var(--lane-nav-bg));border-color:color-mix(in srgb,var(--lane-frame) 78%,white)}.err{margin:0 0 .75rem;padding:.75rem;border-radius:10px;background:#ff8a8a1a;color:var(--err);font-size:.85rem;line-height:1.4;white-space:pre-wrap;display:none}.err.show{display:block}.preview{margin-top:0;margin-inline:auto;background:#12121b;border:var(--post-frame-border);border-radius:var(--post-panel-radius);padding:clamp(.9rem,1.25vw,1.35rem) clamp(.9rem,2vw,1.75rem);width:min(100%,1680px)}.preview-head{display:flex;align-items:center;justify-content:space-between;gap:.8rem;margin-bottom:.75rem}.preview-head h3{margin:0;font-size:.95rem;font-weight:650}.preview-actions{display:flex;gap:.5rem}.preview-body{display:flex;flex-direction:row;align-items:stretch;gap:1rem}.preview-visual{flex:0 1 min(36rem,56vw);min-width:0}.preview-readmore{flex:1 1 12rem;min-width:0;display:flex;flex-direction:column}.preview-readmore-pre{margin:0;flex:1 1 auto;min-height:10rem;max-height:min(78vh,44rem);overflow:auto;padding:.65rem .75rem;font-size:.78rem;line-height:1.48;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,monospace;color:#d8d8ea;background:#0c0c12;border:var(--post-frame-border);border-radius:var(--post-frame-radius);white-space:pre-wrap;word-break:break-word}.small-btn{padding:.45rem .7rem;border:none;border-radius:8px;background:var(--accent);color:#0b0b10;font-size:.82rem;font-weight:650;cursor:pointer}.small-btn.alt{background:#d6d8f5}.small-btn:disabled{opacity:.5;cursor:not-allowed}.preview-img-frame{width:100%;max-width:min(36rem,100%);margin-inline:0;aspect-ratio:1 / 1;border-radius:var(--post-frame-radius);overflow:hidden;background:#0003}.preview-img{width:100%;height:100%;object-fit:contain;display:block;border-radius:var(--post-frame-radius);border:var(--post-frame-border);box-sizing:border-box}@media (max-width: 640px){.app-shell{flex-direction:column}.lane-nav{position:sticky;top:0;flex-direction:row;flex-wrap:wrap;align-items:center;justify-content:flex-start;min-height:unset;width:100%;padding:.65rem .75rem;border-right:none;border-bottom:1px solid var(--card-border)}.brand-logo{width:2rem;height:2rem;margin-right:.35rem}.lane-btn{align-self:center;width:auto;flex:0 1 auto;min-width:5.5rem;text-align:left}.preview-body{flex-direction:column}.preview-visual{flex:1 1 auto;max-width:100%}.preview-img-frame{max-width:min(30rem,100%);margin-inline:0}.preview-readmore-pre{max-height:min(42vh,22rem)}}@media (min-width: 641px) and (max-width: 900px){.preview-body{flex-direction:column}.preview-visual{max-width:min(28rem,92%)}.preview-readmore-pre{max-height:min(38vh,20rem)}}