.challenge-toast{position:fixed;bottom:80px;left:50%;transform:translateX(-50%) translateY(20px);background:#1a1a2e;color:#fff;padding:10px 18px;border-radius:12px;font-size:13px;font-weight:500;z-index:9999;opacity:0;transition:opacity .3s ease,transform .3s ease;max-width:90vw;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.25);pointer-events:none}.challenge-toast--show{opacity:1;transform:translateX(-50%) translateY(0)}.track-badge{position:absolute;top:4px;right:-10px;display:inline-flex;align-items:center;padding:1px 5px;font-size:.45rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#fff;border-radius:3px;line-height:1.5;white-space:nowrap;box-shadow:0 1px 4px rgba(0,0,0,.25)}.track-badge--quit{background:linear-gradient(135deg,color-mix(in srgb,#e53e3e 90%,transparent),color-mix(in srgb,#c53030 90%,transparent))}.track-badge--reduce{background:linear-gradient(135deg,color-mix(in srgb,#4ea0dc 90%,transparent),color-mix(in srgb,#3182ce 90%,transparent))}.track-badge--understand{background:linear-gradient(135deg,color-mix(in srgb,#38a169 90%,transparent),color-mix(in srgb,#2f855a 90%,transparent))}.track-selection-overlay{position:fixed;inset:0;z-index:10000;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.7);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);padding:1rem}.track-selection-card{background:var(--bg-primary,#fff);border-radius:16px;padding:2rem 1.5rem;max-width:420px;width:100%;box-shadow:0 8px 40px rgba(0,0,0,.3);text-align:center}.track-selection-title{font-size:1.3rem;font-weight:700;margin:0 0 .5rem;color:var(--text,#333)}.track-selection-sub{font-size:.85rem;color:var(--text-muted,#999);margin:0 0 1.5rem;line-height:1.4}.track-selection-options{display:flex;flex-direction:column;gap:.6rem;width:fit-content;margin:0 auto}.track-selection-btn{display:flex;align-items:flex-start;gap:10px;padding:10px 14px;border-radius:10px;border:2px solid var(--border,#e5e7eb);background:var(--bg-secondary,#f7f8fa);cursor:pointer;text-align:left;transition:border-color .2s,background .2s,transform .15s;font-size:13px;color:var(--text,#333);width:auto}@media (hover:hover){.track-selection-btn:hover{border-color:var(--accent,#4ea0dc);background:rgba(78,160,220,.07);transform:translateY(-1px)}}.track-selection-btn--active{border-color:var(--accent,#4ea0dc);background:rgba(78,160,220,.12)}.track-selection-emoji{font-size:18px;flex-shrink:0;line-height:1.3;padding-top:1px}.track-selection-info strong{display:block;font-weight:600;line-height:1.3}.track-selection-info span{font-size:11px;color:var(--text-muted,#999)}.track-reduce-options{margin-top:1.2rem;padding-top:1rem;border-top:1px solid var(--border,#e5e7eb);text-align:left}.track-reduce-options h3{font-size:.9rem;font-weight:600;margin:0 0 .8rem;text-align:center;color:var(--text,#333)}.track-reduce-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:.6rem}.track-reduce-row label{font-size:.8rem;color:var(--text,#333)}.track-reduce-row input{width:60px;text-align:center;padding:.35rem .5rem;border:1px solid var(--border,#e5e7eb);border-radius:8px;font-size:.85rem;background:var(--bg-primary,#fff);color:var(--text,#333)}.track-selection-confirm{display:block;width:100%;margin-top:1rem;padding:.7rem;font-size:.9rem;font-weight:600;color:#fff;background:var(--accent,#4ea0dc);border:none;border-radius:10px;cursor:pointer;transition:background .2s}@media (hover:hover){.track-selection-confirm:hover{background:#3182ce}}[data-theme=dark] .track-selection-card{background:var(--bg-primary,#1a1a2e)}[data-theme=dark] .track-selection-btn{background:rgba(255,255,255,.04);border-color:var(--border,rgba(255,255,255,.12))}@media (hover:hover){[data-theme=dark] .track-selection-btn:hover{border-color:var(--accent,#4ea0dc);background:rgba(78,160,220,.1)}}[data-theme=dark] .track-reduce-row input{background:var(--bg-secondary,#16213e);border-color:var(--border,rgba(255,255,255,.12));color:var(--text,#e0e0e0)}@media (max-width:480px){.track-selection-card{padding:1.5rem 1rem}.track-badge{right:-8px;top:4px;font-size:.4rem}}