:root{--green:#1db954;--green-hover:#1ed760;--bg:#0a0a0a;--surface:#161616;--border:#2a2a2a;--text:#fff;--text-muted:#888;--text-dim:#555;--run-color:#e05252;--walk-color:#6e9fff;--radius:10px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg);height:100%;color:var(--text);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;line-height:1.5}#root{height:100%}.app{flex-direction:column;align-items:center;min-height:100vh;padding:2rem 1rem 4rem;display:flex}.error-banner{color:#ff8080;border-radius:var(--radius);background:#3a1a1a;border:1px solid #7a2a2a;justify-content:space-between;align-items:center;gap:1rem;width:100%;max-width:480px;margin-bottom:1.5rem;padding:.75rem 1rem;font-size:.875rem;display:flex}.error-banner button{color:inherit;cursor:pointer;background:0 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.15s}.pill.active{background:var(--green);border-color:var(--green);color:#000;font-weight:700}.pill:hover:not(.active){border-color:var(--text-muted);color:var(--text)}.hint{color:var(--text-dim);min-height:1.2rem;font-size:.8rem}.c25k-summary{flex-direction:column;gap:.5rem;display:flex}.c25k-intervals{flex-wrap:wrap;gap:.35rem;display:flex}.interval-chip{border-radius:4px;padding:.25rem .5rem;font-size:.72rem;font-weight:600}.interval-chip.run{color:var(--run-color);background:#e0525226}.interval-chip.walk{color:var(--walk-color);background:#6e9fff26}.generating-view{text-align:center;align-items:center;padding-top:20vh}.step-label{color:var(--text-muted);min-height:1.5rem;font-size:.95rem}.progress-track{background:var(--border);border-radius:2px;width:100%;height:4px;overflow:hidden}.progress-fill{background:var(--green);border-radius:2px;height:100%;transition:width .3s}.percent-label{color:var(--text-dim);font-size:.8rem}.done-view{padding-top:6vh}.result-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);flex-direction:column;gap:1.25rem;padding:1.5rem;display:flex}.result-card h2{color:var(--text-muted);font-size:1rem;font-weight:600;line-height:1.4}.stats{text-align:center;grid-template-columns:repeat(4,1fr);gap:.75rem;display:grid}.stat{flex-direction:column;gap:.25rem;display:flex}.stat-value{color:var(--text);font-size:1.1rem;font-weight:700}.stat-label{color:var(--text-dim);text-transform:uppercase;letter-spacing:.05em;font-size:.7rem}.playlist-rows{border:1px solid var(--border);border-radius:var(--radius);flex-direction:row;gap:6px;display:flex;overflow:hidden}.target-col{flex-direction:column;flex-shrink:0;width:58px;display:flex}.target-seg{border-bottom:1px solid #00000040;flex-direction:column;justify-content:center;align-items:center;gap:2px;display:flex;overflow:hidden}.target-seg:last-child{border-bottom:none}.target-seg.run{border-right:2px solid var(--run-color);background:#e0525238}.target-seg.walk{border-right:2px solid var(--walk-color);background:#6e9fff38}.target-emoji{font-size:.95rem;line-height:1}.target-time{color:var(--text-muted);font-variant-numeric:tabular-nums;font-size:.6rem}.track-col{flex-direction:column;flex:1;min-width:0;display:flex}.track-row{border-bottom:1px solid #ffffff0a;align-items:center;gap:.5rem;padding:.35rem .6rem .35rem .75rem;display:flex;overflow:hidden}.track-row:last-child{border-bottom:none}.track-row.run{border-left:3px solid var(--run-color);background:#e052521f}.track-row.walk{border-left:3px solid 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