.app-shell{min-height:100vh;display:grid;grid-template-columns:380px 1fr;grid-gap:16px;gap:16px;padding:16px;background:#C4CAD2;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.app-sidebar{position:-webkit-sticky;position:sticky;top:16px;align-self:start;max-height:calc(100vh - 32px);overflow-y:auto;background:#fff;border-radius:12px;padding:16px;box-shadow:0 4px 12px rgba(0,0,0,.08);display:flex;flex-direction:column;gap:10px}.app-sidebar h1{font-size:16px;font-weight:600;color:#101a25;margin:0 0 4px}.app-sidebar .hint{font-size:12px;color:#5a6577;line-height:1.4;margin:0 0 6px}.app-sidebar textarea{width:100%;min-height:320px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;line-height:1.45;border:1px solid #cfd5de;border-radius:8px;padding:10px;resize:vertical;background:#fafbfc;color:#101a25}.app-sidebar textarea:focus{outline:none;border-color:#eec95c;background:#fff}.app-sidebar .btn-row{display:flex;flex-direction:column;gap:8px}.app-sidebar .btn-row-inline{display:flex;gap:8px}.app-sidebar button{padding:10px 14px;font-size:13px;font-weight:600;border-radius:8px;border:none;cursor:pointer;transition:transform .05s,background .15s;white-space:nowrap}.app-sidebar .btn-row>.btn-primary{width:100%}.app-sidebar .btn-row-inline>button{flex:1 1}.app-sidebar button:active{transform:translateY(1px)}.btn-primary{background:#101a25;color:#fff}.btn-primary:hover{background:#1a2737}.btn-gold{background:#eec95c;color:#101a25}.btn-gold:hover{background:#f0d375}.btn-ghost{background:#f0f2f5;color:#101a25}.btn-ghost:hover{background:#e3e7ec}.btn-gold:disabled,.btn-primary:disabled{opacity:.45;cursor:not-allowed}.app-msg{font-size:12px;line-height:1.45;padding:8px 10px;border-radius:6px;margin:0}.app-msg.err{background:#fde9e9;color:#882020;border:1px solid #f3b3b3}.app-msg.warn{background:#fff5d6;color:#6c5200;border:1px solid #f0d375}.app-msg.ok{background:#e7f6ea;color:#1d6b3a;border:1px solid #b3dec0}.app-msg ul{margin:4px 0 0;padding-left:18px}.app-msg li,.app-msg ul{list-style:disc}.app-main{display:flex;flex-direction:column;align-items:center}.app-empty{margin-top:80px;color:#6e7889;font-size:14px;text-align:center;max-width:480px}@media print{.app-shell{display:block;padding:0;background:#fff}.app-sidebar{display:none!important}.app-main{display:block}}