:root{color-scheme:light;--bg:#f4f7f6;--panel:#ffffff;--panel-strong:#ffffff;--ink:#202525;--muted:#687170;--line:#d8e1df;--accent:#176c72;--accent-2:#9a3d69;--accent-3:#516a31;--soft:#e8f2ef;--shadow:0 18px 54px rgba(24,46,44,0.10);--radius:8px;--font:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}:root[data-theme="dark"]{color-scheme:dark;--bg:#171819;--panel:#202224;--panel-strong:#25282a;--ink:#f2efe8;--muted:#b9b3a9;--line:#3a3d3f;--accent:#48aeb4;--accent-2:#d38158;--accent-3:#9ab86d;--soft:#263b3b;--shadow:0 18px 54px rgba(0,0,0,0.26)}*{box-sizing:border-box}html{min-height:100%;background:var(--bg)}body{min-height:100%;margin:0;color:var(--ink);background:linear-gradient(115deg,rgba(23,108,114,0.10),transparent 34%),linear-gradient(245deg,rgba(154,61,105,0.10),transparent 38%),var(--bg);font-family:var(--font)}button,select,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}.app-shell{width:min(1180px,calc(100vw - 32px));margin:0 auto;padding:22px 0 28px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:54px}.brand{display:inline-flex;align-items:center;gap:12px;min-width:0;color:var(--ink);text-decoration:none;font-size:1.08rem;font-weight:800}.brand-mark{width:38px;height:38px}.top-actions,.action-row{display:flex;align-items:center;gap:10px}.workspace{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(360px,0.78fr);gap:18px;padding-top:20px}.convert-panel{width:100%;min-width:0;border:1px solid var(--line);border-radius:var(--radius);background:color-mix(in srgb,var(--panel) 94%,transparent);box-shadow:var(--shadow)}.input-panel,.output-panel{padding:20px}.panel-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:18px}.panel-heading>div{min-width:0}.eyebrow{margin:0 0 5px;color:var(--accent-2);font-size:0.76rem;font-weight:800;letter-spacing:0;text-transform:uppercase}h1,h2{margin:0;color:var(--ink);letter-spacing:0}h1{font-size:3.8rem;line-height:0.96}h2{font-size:1.42rem;line-height:1.16}.icon-button,.swap-button,.install-button,.primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:42px;border:1px solid var(--line);border-radius:8px;color:var(--ink);background:var(--panel-strong);cursor:pointer;text-decoration:none;transition:transform 150ms ease,border-color 150ms ease,background 150ms ease}.icon-button:hover,.swap-button:hover,.install-button:hover,.secondary-button:hover,.primary-button:hover{transform:translateY(-1px)}.icon-button:focus-visible,.swap-button:focus-visible,.install-button:focus-visible,.primary-button:focus-visible,.secondary-button:focus-visible,select:focus-visible,textarea:focus-visible,.drop-zone:focus-within{outline:3px solid color-mix(in srgb,var(--accent) 38%,transparent);outline-offset:2px}.icon-button{width:42px;padding:0}.quiet{color:var(--muted);background:transparent}.install-button,.primary-button,.secondary-button{padding:0 15px;font-weight:800}.primary-button{border-color:var(--accent);color:white;background:var(--accent)}.secondary-button{border-color:color-mix(in srgb,var(--accent) 55%,var(--line));color:var(--accent)}.disabled{pointer-events:none;opacity:0.48}svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:2}.drop-zone{position:relative;display:grid;place-items:center;min-height:222px;padding:26px;border:1px dashed color-mix(in srgb,var(--accent) 50%,var(--line));border-radius:var(--radius);background:linear-gradient(135deg,color-mix(in srgb,var(--soft) 70%,transparent),transparent),var(--panel-strong);text-align:center;cursor:pointer}.drop-zone.is-dragging{border-color:var(--accent-3);background:color-mix(in srgb,var(--soft) 88%,var(--panel-strong))}.drop-zone input{position:absolute;inset:0;opacity:0;cursor:pointer}.drop-art{display:grid;place-items:center;width:86px;height:86px;margin-bottom:14px;border:1px solid var(--line);border-radius:8px;color:var(--accent);background:var(--panel)}.drop-art svg{width:58px;height:58px;stroke-width:2.3}.drop-title,.drop-meta{display:block}.drop-title{font-size:1.08rem;font-weight:850}.drop-meta{margin-top:6px;color:var(--muted);font-size:0.92rem}.format-grid{display:grid;grid-template-columns:minmax(0,1fr) 44px minmax(0,1fr);align-items:end;gap:10px;margin-top:16px}.field{display:grid;gap:7px;color:var(--muted);font-size:0.84rem;font-weight:760}select{width:100%;min-height:44px;padding:0 12px;border:1px solid var(--line);border-radius:8px;color:var(--ink);background:var(--panel-strong)}.mode-switch{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;margin-top:16px;padding:5px;border:1px solid var(--line);border-radius:8px;background:var(--panel-strong)}.mode-switch label{min-width:0}.mode-switch input{position:absolute;opacity:0;pointer-events:none}.mode-switch span{display:flex;align-items:center;justify-content:center;min-height:36px;padding:0 10px;border-radius:6px;color:var(--muted);font-size:0.84rem;font-weight:850;white-space:nowrap;cursor:pointer}.mode-switch input:checked+span{color:white;background:var(--accent)}.mode-switch input:focus-visible+span{outline:3px solid color-mix(in srgb,var(--accent) 38%,transparent);outline-offset:2px}.swap-button{width:44px;padding:0}.source-editor,.preview-shell{margin-top:16px;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel-strong)}.editor-topline,.preview-topline{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:40px;padding:0 13px;border-bottom:1px solid var(--line);color:var(--muted);font-size:0.84rem;font-weight:800}textarea{display:block;width:100%;min-height:250px;resize:vertical;padding:14px;border:0;color:var(--ink);background:transparent;line-height:1.52}.status-pill{display:inline-flex;align-items:center;justify-content:center;min-height:30px;max-width:190px;padding:0 10px;border:1px solid var(--line);border-radius:8px;color:var(--accent-3);background:color-mix(in srgb,var(--accent-3) 10%,var(--panel-strong));font-size:0.78rem;font-weight:850;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.preview-shell{margin-top:16px}pre{min-height:374px;max-height:482px;margin:0;padding:15px;overflow:auto;color:var(--ink);font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono",monospace;font-size:0.88rem;line-height:1.56;white-space:pre-wrap;word-break:break-word}.fine-print{margin:14px 2px 0;color:var(--muted);font-size:0.82rem;line-height:1.45}@media (max-width:920px){.app-shell{width:min(100% - 20px,720px);padding-top:12px}.workspace{grid-template-columns:1fr}h1{font-size:3rem}}@media (max-width:560px){body{overflow-x:hidden}.app-shell{width:100%;padding:12px 10px 28px}.topbar{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:start}.top-actions{min-width:0;flex-wrap:wrap;justify-content:flex-end}.brand span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.install-button{width:42px;min-width:42px;padding:0;gap:0;font-size:0}.input-panel,.output-panel{padding:14px}.panel-heading,.action-row{align-items:stretch}.action-row{grid-template-columns:1fr}.action-row{display:grid}h1{font-size:2.05rem;line-height:1.05}.primary-button,.secondary-button{width:100%}.format-grid{grid-template-columns:1fr}.swap-button{width:100%}.drop-zone{min-height:198px;padding:22px 18px}}