:root{--sand: #f9f8f4;--sand-deep: #f2f1ec;--paper: #ffffff;--line: #e7e4dc;--line-soft: #efede6;--ink: #1c1a16;--ink-soft: #6f6a5b;--ink-faint: #a59a85;--accent: #ff5a1f;--accent-deep: #e6420a;--radius: 2px;--font-sans: "Work Sans", system-ui, sans-serif;--font-display: "Gilda Display", Georgia, serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{font-family:var(--font-sans);background:var(--sand);color:var(--ink);-webkit-font-smoothing:antialiased}.app{display:flex;flex-direction:column;height:100%}.header{padding:32px 40px 0;flex-shrink:0}.header-title{font-family:var(--font-display);font-size:28px;font-weight:400;color:var(--ink);letter-spacing:-.01em}.header-sub{font-size:14px;color:var(--ink-soft);margin-top:4px}.main{flex:1;display:flex;gap:0;padding:24px 40px 40px;min-height:0}.left{width:400px;flex-shrink:0;display:flex;flex-direction:column;gap:16px;overflow-y:auto;padding-right:24px}.right{flex:1;display:flex;flex-direction:column;min-width:0}.upload-area{border:2px dashed var(--line);border-radius:var(--radius);padding:32px 24px;text-align:center;cursor:pointer;transition:background .15s,border-color .15s;background:var(--paper)}.upload-area:hover{border-color:var(--accent);background:#fffdfa}.upload-area.drag-over{border-color:var(--accent);background:#fff5ee}.upload-area.disabled{opacity:.5;cursor:default;pointer-events:none}.upload-icon{font-size:24px;margin-bottom:6px;color:var(--ink-faint)}.upload-label{font-size:13px;color:var(--ink-soft)}.upload-hint{font-size:11px;color:var(--ink-faint);margin-top:3px}.frame-list-section{display:flex;flex-direction:column;gap:8px}.frame-list-header{display:flex;justify-content:space-between;align-items:center}.frame-list-header h3{font-family:var(--font-sans);font-size:13px;font-weight:500;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.05em}.frame-count{font-size:12px;color:var(--ink-faint)}.frame-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;min-height:72px}.frame-thumb{position:relative;width:72px;height:72px;flex-shrink:0;border-radius:var(--radius);overflow:hidden;background:var(--paper);border:1px solid var(--line);cursor:grab;transition:border-color .15s,box-shadow .15s}.frame-thumb:hover{border-color:var(--ink-faint);box-shadow:0 1px 4px #1c1a1614}.frame-thumb.dragging{box-shadow:0 4px 12px #1c1a1626;border-color:var(--accent)}.frame-thumb img{width:100%;height:100%;object-fit:cover}.frame-thumb-order{position:absolute;top:3px;left:3px;background:#1c1a16b3;color:#fff;font-size:10px;font-weight:600;width:18px;height:18px;border-radius:9999px;display:flex;align-items:center;justify-content:center}.frame-thumb-remove{position:absolute;top:3px;right:3px;width:18px;height:18px;border-radius:9999px;border:none;background:#1c1a1699;color:#fff;font-size:11px;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .15s}.frame-thumb:hover .frame-thumb-remove{opacity:1}.frame-thumb-remove:hover{background:#e5484d}.drop-placeholder{width:72px;height:72px;flex-shrink:0;border-radius:var(--radius);border:2px dashed var(--accent);background:#fff5ee}.settings{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:16px;display:flex;flex-direction:column;gap:12px}.settings h3{font-size:13px;font-weight:500;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.05em}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.settings-field{display:flex;flex-direction:column;gap:4px}.settings-field label{font-size:12px;color:var(--ink-soft)}.settings-field input[type=number],.settings-field input[type=text]{font-family:var(--font-sans);font-size:13px;padding:6px 8px;border:1px solid var(--line);border-radius:var(--radius);background:var(--sand);color:var(--ink);outline:none;transition:border-color .15s}.settings-field input:focus{border-color:var(--ink-faint)}.settings-field input[type=range]{width:100%;accent-color:var(--accent)}.settings-row{display:flex;align-items:center;gap:8px}.settings-row-value{font-size:12px;color:var(--ink-soft);min-width:24px;text-align:right}.quality-presets{display:flex;gap:4px;margin-top:4px}.quality-presets button{flex:1;font-family:var(--font-sans);font-size:11px;font-weight:500;padding:4px 8px;border:1px solid var(--line);border-radius:9999px;background:var(--sand);color:var(--ink-soft);cursor:pointer;transition:all .15s}.quality-presets button:hover{border-color:var(--ink-faint);color:var(--ink)}.toggle{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-soft);cursor:pointer;-webkit-user-select:none;user-select:none;padding:8px 12px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);transition:border-color .15s}.toggle:hover{border-color:var(--ink-faint)}.toggle-track{width:32px;height:18px;border-radius:9999px;background:var(--line);position:relative;transition:background .2s;flex-shrink:0}.toggle.on .toggle-track{background:var(--accent)}.toggle-thumb{position:absolute;top:2px;left:2px;width:14px;height:14px;border-radius:50%;background:#fff;transition:transform .2s}.toggle.on .toggle-thumb{transform:translate(14px)}.progress-bar-wrap{display:flex;flex-direction:column;gap:4px}.progress-bar{height:6px;border-radius:3px;background:var(--line);overflow:hidden}.progress-fill{height:100%;border-radius:3px;background:var(--accent);transition:width .15s ease}.progress-label{font-size:12px;color:var(--ink-faint)}.generate-btn{font-family:var(--font-sans);font-size:14px;font-weight:600;padding:12px 24px;border:none;border-radius:var(--radius);background:var(--accent);color:#fff;cursor:pointer;transition:background .15s;text-align:center}.generate-btn:hover:not(:disabled){background:var(--accent-deep)}.generate-btn:disabled{opacity:.4;cursor:default}.generate-btn.generating{background:var(--ink-faint);cursor:default}.preview-panel{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);min-height:0;position:relative}.preview-empty{text-align:center;color:var(--ink-faint)}.preview-empty-icon{font-size:36px;margin-bottom:8px}.preview-empty-label{font-size:14px}.preview-empty-hint{font-size:12px;margin-top:4px}.preview-image{max-width:100%;max-height:100%;object-fit:contain;padding:16px}.preview-live{position:relative;width:100%;height:100%;display:flex;align-items:center;justify-content:center}.preview-live-img{position:absolute;max-width:100%;max-height:100%;object-fit:contain;padding:16px;opacity:0;transition:opacity .1s}.preview-live-img.visible{opacity:1}.preview-live-label{position:absolute;bottom:12px;font-size:12px;color:var(--ink-faint)}.preview-download{position:absolute;bottom:16px;right:16px;font-family:var(--font-sans);font-size:13px;font-weight:500;padding:8px 16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);color:var(--ink);cursor:pointer;text-decoration:none;transition:border-color .15s,background .15s}.preview-download:hover{border-color:var(--ink-faint);background:var(--sand)}.frame-list::-webkit-scrollbar{height:4px}.frame-list::-webkit-scrollbar-track{background:transparent}.frame-list::-webkit-scrollbar-thumb{background:var(--line);border-radius:2px}.left::-webkit-scrollbar{width:4px}.left::-webkit-scrollbar-track{background:transparent}.left::-webkit-scrollbar-thumb{background:var(--line);border-radius:2px}