:root{--bg: #fdf6ef;--card: #ffffff;--ink: #3a2c22;--muted: #8a7a6d;--accent: #c1440e;--accent-soft: #f6e2d6;--good: #3d8a5f;--good-soft: #e2f2e9;--bad: #c0392b;--bad-soft: #fbe4e0;--line: #ece0d5}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}.accent{color:var(--accent)}header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px 6px;max-width:640px;margin:0 auto}header h1{font-size:18px;margin:0;letter-spacing:.3px}.streak{font-size:13px;color:var(--muted);font-weight:600}nav{display:flex;gap:6px;padding:8px 14px 10px;max-width:640px;margin:0 auto;flex-wrap:wrap}nav button{flex:1;min-width:64px;padding:9px 0;border:1px solid var(--line);background:var(--card);border-radius:10px;font-size:13px;font-weight:600;color:var(--muted);cursor:pointer}nav button.on{background:var(--accent);border-color:var(--accent);color:#fff}main{max-width:640px;margin:0 auto;padding:4px 14px 60px}.panel{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;margin-bottom:12px}.panel h2{margin:0 0 6px;font-size:18px}.panel h3{margin:0 0 6px;font-size:15px}.hint{color:var(--muted);font-size:13px;line-height:1.5}.hint.center{text-align:center}.meta-row{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--muted);margin-bottom:6px}.btn{padding:10px 18px;border:none;border-radius:10px;background:var(--accent);color:#fff;font-size:15px;font-weight:700;cursor:pointer}.btn.ghost{background:transparent;color:var(--accent);border:1.5px solid var(--accent)}.btn.small{padding:6px 12px;font-size:13px}.btn.grow{flex:1}.btn.danger{background:var(--bad)}.btn:disabled{opacity:.45;cursor:default}.row-gap{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px;align-items:center}.trial-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;margin-bottom:12px}.trial-stimulus{font-size:40px;text-align:center;line-height:1.2;margin:8px 0 10px;-webkit-user-select:none;user-select:none}.trial-stimulus.en{font-family:inherit;font-size:24px;font-weight:700;line-height:1.4}.trial-stimulus.listen,.trial-stimulus.es-term{font-size:16px}.trial-tag{display:block;font-size:12px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--muted);margin-bottom:10px}.term-frame{display:inline-block;background:var(--accent-soft);color:var(--accent);border-radius:12px;padding:16px 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18px}.reveal{margin-top:4px;padding:14px 16px;border-radius:12px;font-size:16px;line-height:1.5}.reveal.good{background:var(--good-soft);color:var(--good)}.reveal.bad{background:var(--bad-soft);color:var(--bad)}.reveal-heading{font-weight:700;font-size:28px}.reveal-es{font-size:20px;font-weight:700;margin-top:2px}.reveal-en{color:var(--ink);font-size:15px;font-weight:600;margin-top:6px}.reveal-example{color:var(--ink);font-size:14.5px;margin-top:6px;font-style:italic}.reveal-detail{color:var(--ink);font-size:14px;margin-top:4px}.reveal-note{display:block;margin-top:8px;color:var(--ink);font-size:13.5px;background:var(--bg);border-radius:8px;padding:8px 10px}.reveal-actions{display:flex;gap:8px;align-items:center;margin-top:12px;flex-wrap:wrap}.reveal-actions .btn:last-child{margin-left:auto}.rec-row{display:flex;gap:8px;align-items:center;margin-top:10px;flex-wrap:wrap}.rec-chip{padding:4px 12px;border-radius:20px;font-size:12.5px;font-weight:700;background:var(--bg);color:var(--ink)}.rec-chip.good{background:var(--good-soft);color:var(--good)}.rec-chip.bad{background:var(--bad-soft);color:var(--bad)}.intro-es{font-size:34px;text-align:center;line-height:1.3;margin:8px 0 2px;font-weight:700;-webkit-user-select:none;user-select:none}.intro-en{text-align:center;font-size:16px;font-weight:600;margin-top:8px}.intro-example{text-align:center;font-size:14px;color:var(--muted);font-style:italic;margin-top:4px}.intro-tag{display:inline-block;background:var(--accent-soft);color:var(--accent);padding:2px 10px;border-radius:20px;font-size:12px;font-weight:700}.mnemonic-box{background:var(--bg);border-radius:10px;padding:12px 14px;margin-top:12px;font-size:14.5px;line-height:1.5}.statgrid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px}.statbox{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center}.statbox-n{font-size:26px;font-weight:800;color:var(--accent)}.statbox-l{font-size:12px;color:var(--muted);margin-top:2px}.mode-row{display:flex;gap:10px;margin-bottom:12px;flex-wrap:wrap}.mode-box{flex:1;min-width:68px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px;text-align:center}.mode-box-h{font-size:13px;font-weight:700;color:var(--accent)}.mode-box-n{font-size:22px;font-weight:800;margin-top:2px}.mode-box-l{font-size:11.5px;color:var(--muted)}.done-banner{text-align:center;padding:30px 10px}.done-big{font-size:44px}.start-panel{text-align:center;padding:30px 16px}.start-big{font-size:44px}.start-stats{font-size:15px;font-weight:600;margin:6px 0}.start-btn{min-width:200px;padding:13px 24px;font-size:16px;margin-top:10px}.jy-hero{text-align:center;padding:22px 16px}.jy-chart{width:100%;height:auto;display:block}.forecast-row{display:flex;gap:6px;align-items:flex-end}.forecast-day{flex:1;text-align:center;background:var(--bg);border-radius:8px;padding:8px 0}.forecast-n{font-size:18px;font-weight:800;color:var(--accent)}.forecast-l{font-size:11px;color:var(--muted);margin-top:2px}.milestones{margin:0;padding-left:18px;font-size:13.5px;line-height:1.7}.scenario-list{display:flex;flex-direction:column;gap:8px;margin-top:12px}.scenario-btn{text-align:left}.turns{display:flex;flex-direction:column;gap:10px;margin:12px 0}.turn{border-radius:12px;padding:10px 14px;max-width:85%}.turn.mine{background:var(--accent-soft);align-self:flex-end}.turn.theirs{background:var(--good-soft);align-self:flex-start}.turn-role{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--muted)}.turn-en{font-size:13px;color:var(--muted);margin:2px 0}.turn-es{font-size:17px;font-weight:600}label.opt{display:flex;align-items:center;gap:10px;padding:9px 0;font-size:14.5px;border-bottom:1px solid var(--line);cursor:pointer;justify-content:flex-start}label.opt:last-child{border-bottom:none}@media(max-width:420px){.term-frame{font-size:26px;padding:12px 18px}.trial-stimulus.en{font-size:20px}.intro-es{font-size:28px}}.sync input.key{flex:1;min-width:160px;padding:6px 10px;font:inherit;font-size:13px;color:inherit;background:transparent;border:1.5px solid var(--line);border-radius:8px}.sync input.key:focus{outline:none;border-color:var(--accent)}.sync .sync-error{color:var(--bad)}.sync .sync-error:empty,.sync .sync-status:empty{display:none}