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.celebration-burst{width:60px;height:60px}.celebration-medal{display:flex;align-items:center;justify-content:center;width:100%;height:100%;border-radius:50%;background:var(--accent-fill);color:var(--on-accent);animation:celebration-pop .6s cubic-bezier(.2,1.6,.4,1) .1s both}.celebration-particle{position:absolute;top:50%;left:50%;width:7px;height:7px;margin:-3.5px 0 0 -3.5px;border-radius:2px;background:var(--accent-fill);opacity:0;animation:celebration-particle .9s ease-out .15s both}.celebration-particle-teal{background:var(--accent-2);border-radius:50%}.celebration-text{display:flex;flex-direction:column;line-height:1.25}.celebration-xp{font-family:var(--font-display);font-size:1.35rem;color:var(--accent)}.celebration-big .celebration-xp{font-size:1.7rem}@keyframes celebration-in{0%{opacity:0;transform:translateY(24px) scale(.9)}to{opacity:1;transform:none}}@keyframes celebration-out{to{opacity:0;transform:translateY(12px)}}@keyframes celebration-pop{0%{transform:scale(.3)}to{transform:scale(1)}}@keyframes celebration-particle{0%{opacity:1;transform:rotate(var(--angle)) translate(0) scale(1)}to{opacity:0;transform:rotate(var(--angle)) translate(var(--distance)) scale(.4)}}.badge-done{background:color-mix(in srgb,var(--accent-2) 18%,var(--bg-elev));border-color:var(--accent-2);color:var(--text)}.badge-done svg{color:var(--accent-2)}.unit-chip{position:relative;overflow:hidden;min-width:var(--tap)}.unit-chip:after{content:"";position:absolute;left:0;bottom:0;height:3px;width:var(--p, 0%);background:var(--accent-2)}.unit-chip-done{border-color:var(--accent-2)}.unit-chip-done svg{color:var(--accent-2)}.btn-accent.unit-chip-done svg{color:var(--on-accent)}.lesson-block{gap:.75rem;padding-top:.75rem;border-top:1px solid var(--border)}.track-row-heard audio{opacity:.85}.header-chip{font-size:.9rem;padding:.35rem .75rem}.back-link{display:inline-flex;align-items:center;gap:.4rem;min-height:var(--tap);align-self:flex-start;color:var(--text-muted);text-decoration:none;font-weight:600}.back-link:hover{color:var(--text)}.unit-hero{display:flex;align-items:center;gap:1.25rem;color:var(--text);text-decoration:none;border-color:var(--accent)}.unit-hero>svg{margin-left:auto;flex-shrink:0;color:var(--accent)}.unit-hero-number{font-size:3.5rem;line-height:1;color:var(--accent);min-width:3.5rem;text-align:center}.unit-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:.75rem}.unit-tile{display:flex;flex-direction:column;gap:.5rem;padding:1rem;border-radius:var(--radius-lg);background:var(--bg-elev);border:1px solid var(--border);color:var(--text);text-decoration:none}.unit-tile:hover{border-color:var(--accent)}.unit-tile-current{border:2px solid var(--accent)}.unit-tile-number{font-size:2.4rem;line-height:1.1;color:var(--text-muted)}.unit-tile-current .unit-tile-number,.unit-tile-done .unit-tile-number{color:var(--accent)}.unit-tile-label{display:inline-flex;align-items:center;gap:.35rem;font-weight:600}.unit-tile-done .unit-tile-label svg{color:var(--accent-2)}.unit-tile-bar{height:4px;border-radius:999px;background:var(--bg-elev-2);overflow:hidden}.unit-tile-bar>span{display:block;height:100%;background:var(--accent-2)}.unit-header{position:relative;overflow:hidden;display:flex;flex-direction:column;gap:.6rem}.unit-header>*{position:relative}.unit-header-number{position:absolute;top:-1.5rem;right:.5rem;font-size:9rem;line-height:1;color:var(--bg-elev-2);pointer-events:none}.path{list-style:none;margin:0;padding:0}.path-station{display:flex;gap:1rem}.path-rail{display:flex;flex-direction:column;align-items:center;flex-shrink:0}.path-marker{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;border:2px solid var(--border);color:var(--text-muted);background:var(--bg)}.path-line{flex-grow:1;width:2px;min-height:1rem;background:var(--border)}.path-station-done .path-marker{background:var(--accent-2);border-color:var(--accent-2);color:var(--on-accent-2)}.path-station-done .path-line{background:var(--accent-2)}.path-station-current .path-marker{border-color:var(--accent);color:var(--accent);background:color-mix(in srgb,var(--accent-fill) 14%,var(--bg))}.path-card{flex-grow:1;display:flex;flex-direction:column;gap:.15rem;margin-bottom:.9rem;padding:.65rem .25rem;border-radius:var(--radius);color:var(--text);text-decoration:none}.path-station-current .path-card{padding:.9rem 1rem;background:var(--bg-elev);border:1px solid var(--accent)}.path-station-upcoming .path-card{opacity:.75}.path-station-optional .path-marker{border-style:dashed;color:var(--info)}.path-card:hover .path-card-title{color:var(--accent)}.path-card-title{font-weight:700}.path-card-detail{font-size:.9rem}.path-card-cta{margin-top:.35rem;font-weight:700;color:var(--accent)}.lesson-block-focus{border-top-color:var(--accent);scroll-margin-top:1rem}.lesson-block-focus>.row:first-child strong{color:var(--accent)}.unit-title-ar{font-size:clamp(1.9rem,1.4rem + 2vw,2.6rem);font-weight:600;text-align:left}.icon-btn{min-width:var(--tap);padding:0;justify-content:center}.page-chips{gap:.4rem}.page-chip{font-variant-numeric:tabular-nums;padding:.35rem .7rem;min-height:36px}.video-frame{position:relative;aspect-ratio:16 / 9;border-radius:var(--radius);overflow:hidden;background:#000}.video-frame iframe,.video-poster{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:0}.video-poster{padding:0;cursor:pointer;background:#000}.video-poster img{width:100%;height:100%;object-fit:cover;opacity:.85;transition:opacity .2s}.video-poster:hover img,.video-poster:focus-visible img{opacity:1}.video-play{position:absolute;top:50%;left:50%;display:grid;place-items:center;width:64px;height:64px;margin:-32px 0 0 -32px;border-radius:50%;background:var(--accent-fill);color:var(--on-accent);box-shadow:0 6px 24px #0006}.skill-rings{list-style:none;margin:.5rem 0 0;padding:0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:.5rem}.skill-ring{display:flex;flex-direction:column;align-items:center;gap:.3rem;min-width:var(--tap);color:var(--text-muted);font-size:.75rem;text-decoration:none}.skill-ring:hover{color:var(--accent)}.skill-ring-dial{display:grid;place-items:center;width:42px;height:42px;border-radius:50%;color:var(--text);background:radial-gradient(closest-side,var(--bg-elev) 78%,transparent 80%),conic-gradient(var(--accent-2) var(--p, 0%),var(--bg-elev-2) 0)}.forgetting-reminder{border-color:color-mix(in srgb,var(--warn) 55%,var(--border));background:color-mix(in srgb,var(--warn) 7%,var(--bg-elev))}.unit-gate{border-color:color-mix(in srgb,var(--accent) 40%,var(--border))}.pace-option{display:flex;align-items:center;gap:.75rem;min-height:var(--tap);padding:.75rem 1rem;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-elev);cursor:pointer}.pace-option input{accent-color:var(--accent-fill);width:18px;height:18px}.pace-option-on{border:2px solid var(--accent);background:color-mix(in srgb,var(--accent-fill) 12%,var(--bg-elev))}.pace-weeks{font-weight:700;font-size:.9rem;color:var(--text-muted)}.pace-option-on .pace-weeks{color:var(--accent)}.deadline-chip{align-self:flex-start;gap:.4rem;border-color:var(--accent);color:var(--accent)}.deadline-chip-over{border-color:var(--warn);color:var(--warn)}.unit-tile-locked{opacity:.55}.unit-tile-locked .unit-tile-label svg{color:var(--text-muted)}.current-unit-card{color:var(--text);text-decoration:none;flex-wrap:nowrap;border-color:color-mix(in srgb,var(--accent) 40%,var(--border))}.current-unit-card:hover strong{color:var(--accent)}