:root{--bg: #f2ece3;--surface: rgba(255, 252, 247, .6);--surface-solid: #fffcf7;--border: rgba(255, 255, 255, .3);--border-hover: rgba(90, 183, 195, .4);--text: #2c2520;--text-dim: #8a8078;--accent: #5ab7c3;--accent-hover: #4aa3ae;--danger: #cc4444;--paper: #fffdf8;--glass-shadow: 0 8px 32px rgba(44, 37, 32, .08);--glass-blur: blur(20px);--glass-border: 1px solid rgba(255, 255, 255, .3);color-scheme:light}*,*:before,*:after{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#2c252026;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#2c252040}.app{min-height:100vh;display:flex;flex-direction:column;padding:0 24px 56px}.app-header{display:flex;align-items:baseline;gap:16px;padding:20px 0 12px;margin-bottom:16px}.app-title{font-size:1.15rem;font-weight:600;color:var(--text);margin:0;letter-spacing:.02em}.app-subtitle{color:var(--text-dim);font-size:.82rem;margin:0}.app-filename{font-size:.78rem;color:var(--text-dim);background:var(--surface);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);padding:3px 12px;border-radius:6px;border:var(--glass-border)}.upload-zone{flex:1;display:flex;align-items:center;justify-content:center;border:2px dashed rgba(44,37,32,.15);border-radius:16px;margin:40px auto;max-width:480px;width:100%;padding:48px;cursor:pointer;transition:border-color .2s,background .2s;background:var(--surface);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur)}.upload-zone:hover{border-color:var(--accent);background:#fffcf7cc}.upload-content{text-align:center;color:var(--text-dim)}.upload-content svg{color:var(--accent);margin-bottom:16px}.upload-title{font-size:1.05rem;font-weight:600;color:var(--text);margin:0 0 4px}.upload-subtitle{font-size:.8rem;margin:0 0 20px}.upload-btn{background:var(--accent);color:#fff;border:none;padding:9px 28px;border-radius:8px;font-weight:600;font-size:.85rem;cursor:pointer;transition:background .2s,box-shadow .2s;box-shadow:0 2px 8px #5ab7c340}.upload-btn:hover{background:var(--accent-hover);box-shadow:0 4px 12px #5ab7c359}.upload-hint{font-size:.72rem;color:var(--text-dim);margin:16px 0 0;line-height:1.5;max-width:320px;opacity:.7}.demo-divider{font-size:.8rem;color:var(--text-dim);margin:20px 0 12px;opacity:.5;text-transform:uppercase;letter-spacing:.1em}.demo-btn{background:none;border:1.5px solid rgba(90,183,195,.4);color:var(--accent);padding:10px 24px;border-radius:8px;font-size:.9rem;font-weight:500;cursor:pointer;transition:background .2s,border-color .2s,color 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#5ab7c359}.export-badge{font-size:.72rem;font-weight:600;color:var(--accent);background:#5ab7c314;border:1px solid rgba(90,183,195,.2);padding:4px 12px;border-radius:6px;white-space:nowrap}.action-btn{background:#fffdf8cc;color:var(--text);border:1px solid rgba(44,37,32,.1);padding:7px 16px;border-radius:8px;font-size:.78rem;cursor:pointer;white-space:nowrap;transition:border-color .15s,background .15s,box-shadow .15s}.action-btn:hover:not(:disabled){border-color:var(--accent);box-shadow:0 2px 8px #5ab7c326}.action-btn:disabled{opacity:.5;cursor:default}.action-btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);font-weight:600;box-shadow:0 2px 8px #5ab7c340}.action-btn-primary:hover:not(:disabled){background:var(--accent-hover);box-shadow:0 4px 12px 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.15s}.part-btn:hover{border-color:var(--accent);box-shadow:0 2px 8px #5ab7c326}.part-btn.active{background:#5ab7c326;color:var(--accent);border-color:#5ab7c34d}.part-btn.muted{background:#cc44441a;color:var(--danger);border-color:#c443}.timesig-confirm{flex:1;display:flex;align-items:center;justify-content:center}.timesig-confirm-card{background:var(--surface);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border:var(--glass-border);box-shadow:var(--glass-shadow);border-radius:12px;padding:32px 40px;text-align:center;max-width:380px;width:100%}.timesig-confirm-title{font-size:1.1rem;font-weight:600;color:var(--text);margin:0 0 8px}.timesig-confirm-desc{font-size:.85rem;color:var(--text-dim);margin:0 0 24px;line-height:1.5}.timesig-confirm-select{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:24px;font-size:.85rem;color:var(--text-dim)}.timesig-confirm-select label{font-weight:500}.timesig-confirm-select 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