:root{--bg:#f6f7f9;--surface:#ffffff;--card:#ffffff;--border:#e6e8ee;--text:#14161c;--sub:#5b6472;--muted:#9aa1ad;--accent:#5b4fe9;--accent-ink:#ffffff;--accent-soft:#eeecfd;--strong:#16a34a;--strong-soft:#e6f6ec;--possible:#f59e0b;--possible-soft:#fef4e2;--possible-ink:#5b4b1f;--track:#eef0f4;--r:14px;--r-sm:10px;--r-xs:7px;--mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;--disp:"IBM Plex Sans",system-ui,sans-serif;--body:"IBM Plex Sans",system-ui,sans-serif;--shadow-card:0 1px 2px rgba(20,22,28,.04);--shadow-accent:0 6px 20px rgba(91,79,233,.16)}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){color-scheme:dark;--bg:#0e0f16;--surface:#171925;--card:#171925;--border:#262a3a;--text:#f3f4f8;--sub:#a2a8ba;--muted:#6b7186;--accent:#7b70ff;--accent-soft:#1e1c3a;--strong:#3ddc84;--strong-soft:#123a24;--possible:#f7b955;--possible-soft:#3a2f16;--possible-ink:#f0d9a8;--track:#20232f;--shadow-card:0 1px 2px rgba(0,0,0,.3)}}:root[data-theme=dark]{color-scheme:dark;--bg:#0e0f16;--surface:#171925;--card:#171925;--border:#262a3a;--text:#f3f4f8;--sub:#a2a8ba;--muted:#6b7186;--accent:#7b70ff;--accent-soft:#1e1c3a;--strong:#3ddc84;--strong-soft:#123a24;--possible:#f7b955;--possible-soft:#3a2f16;--possible-ink:#f0d9a8;--track:#20232f;--shadow-card:0 1px 2px rgba(0,0,0,.3)}.moment{color-scheme:dark;--bg:#0e0f16;--surface:#171925;--card:#171925;--border:#262a3a;--text:#f3f4f8;--sub:#a2a8ba;--muted:#6b7186;--accent:#7b70ff;--accent-soft:#1e1c3a;--strong:#3ddc84;--track:#20232f}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--body);font-size:14px;line-height:1.5;-webkit-tap-highlight-color:transparent}.lbl{font-family:var(--mono);text-transform:uppercase;letter-spacing:.11em}.num{font-family:var(--mono)}.disp{font-family:var(--disp)}.app{max-width:480px;margin:0 auto;padding:14px 16px 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var(--border);border-radius:var(--r);box-shadow:var(--shadow-card)}.pad{padding:15px}.progress-track{height:8px;background:var(--track);border-radius:99px;overflow:hidden}.progress-fill{height:100%;background:var(--accent);border-radius:99px}.row-between{display:flex;align-items:baseline;justify-content:space-between}.section-lbl{font-family:var(--mono);text-transform:uppercase;letter-spacing:.11em;font-size:10px;color:var(--sub);margin:0 2px 11px}.lessons{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}.lesson{width:100%;display:flex;align-items:center;gap:13px;text-align:left;background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:13px 14px;color:var(--text);font-family:inherit;cursor:pointer}.lesson--locked{opacity:.62;cursor:not-allowed}.lesson--current{border:1.5px solid var(--accent);box-shadow:var(--shadow-accent);display:block;padding:15px}.lesson-badge{flex:none;width:40px;height:40px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center}.lesson-badge--done{background:var(--strong-soft);color:var(--strong)}.lesson-badge--current{background:var(--accent);color:#fff}.lesson-badge--locked{background:var(--track);color:var(--muted)}.lesson-badge 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12px;cursor:pointer}.eyebrow{font-family:var(--mono);text-transform:uppercase;letter-spacing:.11em;font-size:10px;color:var(--accent);margin-bottom:5px}.video{width:100%;margin:12px 0;border-radius:var(--r);background:#000;aspect-ratio:16/9;object-fit:contain;display:block;box-shadow:0 8px 24px #14161c24}.video-ph{position:relative;margin:12px 0;border-radius:var(--r);overflow:hidden;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;background:radial-gradient(120% 90% at 30% 25%,#2a2550,#14161c 70%);box-shadow:0 8px 24px #14161c24}.video-ph .play{width:56px;height:56px;border-radius:999px;background:#ffffff24;border:1px solid rgba(255,255,255,.25);display:flex;align-items:center;justify-content:center}.materials{width:100%;display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-sm);padding:13px 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var(--border);text-align:center}.hi-eyebrow{font-size:10px;color:var(--accent)}.empty{color:var(--muted);font-size:13px;padding:14px;border:1px dashed var(--border);border-radius:var(--r);text-align:center}.xp-card{background:linear-gradient(135deg,var(--accent-soft),var(--card) 70%)}.level-pill{display:inline-flex;align-items:center;background:var(--accent);color:#fff;border-radius:99px;padding:4px 11px}.level-pill .num{font-weight:700;font-size:12px;letter-spacing:.04em}.xp-total{font-weight:700;font-size:15px;color:var(--accent)}.xp-hint{font-family:var(--mono);font-size:10px;color:var(--sub);margin-top:8px;letter-spacing:.03em}.continue{width:100%;display:flex;align-items:center;gap:13px;text-align:left;color:var(--text);background:var(--card);border:1.5px solid 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