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var(--field-edge);border-radius:var(--radius-sm);padding:10px 12px}.gd-choice:hover:not(:disabled){border-color:var(--accent)}.gd-choice:disabled{cursor:default}.gd-choice:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.gd-choice[data-state=picked]{border-color:var(--accent);background:var(--accent-wash)}.gd-choice[data-state=right]{border-color:var(--right-edge);background:var(--right-wash)}.gd-choice[data-state=wrong]{border-color:var(--coral-edge);background:var(--coral-wash)}.gd-choice-letter{flex:none;font-weight:700;color:var(--stone);width:18px}.gd-verdict{margin-top:14px;display:grid;gap:8px;justify-items:start;font-size:15px;color:var(--reed)}.gd-verdict-title{font-weight:700}.gd-verdict[data-correct=true] .gd-verdict-title{color:var(--right)}.gd-verdict[data-correct=false] .gd-verdict-title{color:var(--coral)}.gd-practice-score{font-size:var(--step-3);font-weight:600;color:var(--mist)}.gd-practice-done{display:grid;gap:10px;justify-items:start}@media (prefers-reduced-motion:reduce){.gd-stage[data-state=now] .gd-stage-mark{animation:none}}.cheer{display:flex;align-items:center;gap:10px;margin:0 0 14px;font-size:var(--step-0);line-height:1.4;animation:cheer-in .26s var(--ease-rise) both}@keyframes cheer-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.cheer-word{font-weight:600;color:var(--right)}.cheer-ended{color:var(--reed);font-size:var(--step--1)}@keyframes cheer-nod{0%,to{transform:rotate(0deg)}40%{transform:rotate(9deg)}}.cheer-nod .corbie .corbie-head{animation:cheer-nod .42s ease-in-out 2}.cheer-run{display:inline-flex;align-items:center;gap:5px;padding:3px 10px 3px 8px;border-radius:999px;background:var(--brand-red-wash);color:var(--mist);font-size:var(--step--1);font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}.cheer-flame{display:block;flex-shrink:0}.cheer-run-compact{min-height:32px;padding:4px 11px 4px 9px;font-size:13px;animation:cheer-bump .42s var(--ease-snap) both}@keyframes cheer-bump{0%{transform:scale(.7)}60%{transform:scale(1.12)}to{transform:scale(1)}}.cheer-milestone{position:relative;gap:16px;margin-bottom:18px;padding:12px 18px 12px 8px;border:1px solid var(--right-edge);border-radius:var(--radius);background:linear-gradient(115deg,var(--right-wash),var(--water-wash));animation:cheer-pop .46s var(--ease-snap) both}@keyframes cheer-pop{0%{opacity:0;transform:translateY(8px) scale(.94)}to{opacity:1;transform:translateY(0) scale(1)}}.cheer-stage{position:relative;flex:0 0 auto;width:96px;display:flex;justify-content:center;align-items:flex-end;padding-top:6px}.cheer-stage .corbie{position:relative;z-index:1}.cheer-copy{min-width:0}.cheer-title{margin:0;font-size:var(--step-3);line-height:1.1;font-weight:600;color:var(--mist)}.cheer-line{margin:4px 0 0;color:var(--reed);font-size:var(--step-0)}.cheer-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:10px 0 0}.cheer-best{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;border:1px solid var(--water-soft);background:var(--water-wash);color:var(--water-deep);font-size:var(--step--1);font-weight:600;animation:cheer-best .9s var(--ease-snap) .5s both}@keyframes cheer-best{0%{opacity:0;transform:scale(.6) rotate(-6deg)}70%{opacity:1;transform:scale(1.08) rotate(2deg)}to{opacity:1;transform:scale(1) rotate(0deg)}}.cheer-sunburst{position:absolute;left:50%;top:50%;width:150px;height:150px;margin:-75px 0 0 -75px;z-index:0;pointer-events:none;-webkit-mask-image:radial-gradient(circle closest-side,black 35%,transparent 72%);mask-image:radial-gradient(circle closest-side,black 35%,transparent 72%);animation:cheer-sunburst-in .6s var(--ease-rise) both,cheer-spin 14s linear infinite}.cheer-sunburst-rays{fill:var(--water-soft);opacity:.55}.cheer-sunburst-core{fill:var(--water-wash)}.cheer-toss .cheer-sunburst-rays{fill:var(--flame-tip);opacity:.35}@keyframes cheer-sunburst-in{0%{opacity:0;scale:.4}to{opacity:1;scale:1}}@keyframes cheer-spin{to{rotate:1turn}}.cheer-confetti{position:absolute;left:50%;top:40%;width:0;height:0;z-index:2;pointer-events:none}.cheer-bit{position:absolute;left:-4px;top:-3px;width:8px;height:6px;border-radius:1px;opacity:0;animation:cheer-confetti 1.5s cubic-bezier(.15,.7,.35,1) var(--delay,0s) both}.cheer-bit-water{background:var(--water)}.cheer-bit-flame{background:var(--flame-mid);width:5px;height:11px}.cheer-bit-tip{background:var(--flame-tip);border-radius:50%;width:7px;height:7px}.cheer-bit-ink{background:var(--accent);width:9px;height:4px}.cheer-bit-right{background:var(--right);border-radius:50%;width:6px;height:6px}.cheer-bit-feather{width:8px;height:18px;top:-9px}.cheer-bit-feather svg{display:block;fill:var(--corbie-ink);stroke:var(--corbie-edge);stroke-width:1;overflow:visible}.cheer-feather-quill{fill:none;stroke:var(--corbie-sheen);stroke-width:1}@keyframes cheer-confetti{0%{opacity:0;transform:translate(0) rotate(0deg) scale(.4)}8%{opacity:1}55%{opacity:1;transform:translate(var(--x),var(--y)) rotate(calc(var(--r) * .6)) scale(1)}to{opacity:0;transform:translate(calc(var(--x) * 1.12),calc(var(--y) + var(--fall))) rotate(var(--r)) scale(.9)}}@media (max-width:520px){.cheer-milestone{gap:10px;padding:10px 12px 10px 4px}.cheer-stage{width:78px}.cheer-stage .corbie{width:64px;height:auto}.cheer-title{font-size:var(--step-2)}}.trail{display:flex;align-items:center;flex-wrap:wrap;gap:4px;margin:0 0 12px}.trail-step{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border:1px solid var(--shoal);border-radius:999px;background:var(--vessel);color:var(--mist);cursor:pointer;transition:border-color var(--dur-fast) ease,color var(--dur-fast) ease}.trail-step:hover:not(:disabled){border-color:var(--edge-strong);color:var(--accent)}.trail-step:disabled{opacity:.4;cursor:default}.trail-dots{display:flex;align-items:center;gap:2px;min-width:0;max-width:calc(100% - 80px);margin:0;padding:4px;list-style:none;overflow-x:auto;scrollbar-width:none}.trail-dots::-webkit-scrollbar{display:none}.trail-dots li{flex:0 0 auto}.trail-dot{position:relative;display:block;width:20px;height:24px;padding:0;border:0;background:none;cursor:pointer}.trail-dot:before{content:"";position:absolute;left:5px;top:7px;width:10px;height:10px;border-radius:50%;background:var(--stone);transition:transform var(--dur-fast) ease}.trail-dot[data-verdict=right]:before{background:var(--right)}.trail-dot[data-verdict=wrong]:before{background:var(--coral)}.trail-dot[data-review]:after{content:"";position:absolute;left:8.5px;top:10.5px;width:3px;height:3px;border-radius:50%;background:var(--vessel)}.trail-dot-live:before{background:transparent;box-shadow:inset 0 0 0 2px var(--stone)}.trail-dot:hover:before{transform:scale(1.25)}.trail-dot[aria-current=step]:before{transform:scale(1.2);box-shadow:0 0 0 2px var(--abyss),0 0 0 3.5px var(--accent)}.trail-dot-live[aria-current=step]:before{box-shadow:inset 0 0 0 2px var(--accent),0 0 0 2px var(--abyss),0 0 0 3.5px var(--accent)}.trail-dots li:last-child .trail-dot:before{animation:trail-pop .32s var(--ease-snap) both}@keyframes trail-pop{0%{transform:scale(.2)}}.trail-note{flex:1 0 100%;margin:4px 2px 0;line-height:1.5}.practice-lookback,.trail-note{font-size:var(--step--1);color:var(--reed)}.practice-lookback{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 16px;margin:0 0 18px;padding:10px 14px;border:1px solid var(--shoal);border-radius:var(--radius-sm);background:var(--deep)}.practice-lookback strong{color:var(--mist);font-weight:600}.practice-swap{animation:practice-swap .22s var(--ease-rise) both}@keyframes practice-swap{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.practice-previous-note{margin:-4px 2px 12px}.practice-switch{position:relative;flex:0 0 auto;width:22px;height:12px;border-radius:999px;background:var(--shoal);transition:background var(--dur-fast) ease}.practice-switch:after{content:"";position:absolute;left:2px;top:2px;width:8px;height:8px;border-radius:50%;background:var(--vessel);box-shadow:0 0 0 .5px var(--edge-hover);transition:transform var(--dur-fast) var(--ease-rise)}.practice-tool[aria-pressed=true] .practice-switch{background:var(--accent)}.practice-tool[aria-pressed=true] .practice-switch:after{transform:translateX(10px);background:var(--on-accent);box-shadow:none}.cheer-settled,.cheer-settled *{animation:none!important}.cheer-settled .cheer-confetti{display:none}@media (prefers-reduced-motion:reduce){:root .cheer,:root .cheer-best,:root .cheer-milestone,:root .cheer-nod .corbie .corbie-head,:root .cheer-run-compact,:root .cheer-sunburst,:root .cheer-toss .corbie .corbie-cap,:root .corbie-bust.corbie-cheering .corbie-head,:root .corbie-bust.corbie-idle .corbie-head,:root .practice-swap,:root .trail-dots li:last-child .trail-dot:before{animation:none}.cheer-confetti{display:none}}.practice-celebrate .choice-row[data-state=correct],.practice-celebrate .spr-field[data-verdict=right]{animation:choice-win .64s var(--ease-snap) both}@keyframes choice-win{0%{transform:scale(1)}32%{transform:scale(1.03)}to{transform:scale(1)}}.practice-celebrate .choice-row[data-state=correct] .choice-key{animation:choice-key-win .56s var(--ease-snap) both}@keyframes choice-key-win{0%{transform:scale(1) rotate(0deg)}45%{transform:scale(1.42) rotate(-10deg)}to{transform:scale(1) rotate(0deg)}}.practice-celebrate .choice-row[data-state=correct]:before{content:"";position:absolute;top:0;bottom:0;left:0;width:38%;z-index:1;background:linear-gradient(100deg,transparent,var(--glint),transparent);transform:translateX(-130%) skewX(-18deg);animation:choice-glint .95s var(--ease-rise) .2s both;pointer-events:none}@keyframes choice-glint{to{transform:translateX(330%) skewX(-18deg)}}.practice-celebrate .choice-tag-right,.practice-celebrate .practice-verdict[data-verdict=right]{animation:choice-stamp .52s var(--ease-snap) .14s both}.practice-celebrate .choice-tag-right{display:inline-block}@keyframes choice-stamp{0%{opacity:0;transform:scale(.4) rotate(-10deg)}70%{opacity:1;transform:scale(1.12) rotate(2deg)}to{opacity:1;transform:scale(1) rotate(0deg)}}.confetti-layer{position:fixed;inset:0;width:100%;height:100%;z-index:65;pointer-events:none}@media (prefers-reduced-motion:reduce){:root .practice-celebrate .choice-row[data-state=correct],:root .practice-celebrate .choice-row[data-state=correct] .choice-key,:root .practice-celebrate .choice-tag-right,:root .practice-celebrate .practice-verdict[data-verdict=right],:root .practice-celebrate .spr-field[data-verdict=right]{animation:none}.confetti-layer,.practice-celebrate .choice-row[data-state=correct]:before{display:none}}.tour-root{position:fixed;inset:0;z-index:85;touch-action:none}.tour-root[data-phase=closing],.tour-root[data-phase=finishing],.tour-stage{pointer-events:none}.tour-stage{position:fixed;inset:0;width:100%;height:100%;overflow:visible;transition:opacity .32s ease}.tour-root[data-phase=closing] .tour-stage,.tour-root[data-phase=finishing] .tour-stage{opacity:0}.tour-scrim{fill:var(--tour-scrim);animation:tour-fade-in .38s ease both}.tour-ring{fill:none;stroke:var(--tour-ring);stroke-width:2}.tour-glow{fill:none;stroke:var(--tour-glow);stroke-width:8;animation:tour-glow 2.4s ease-in-out infinite}.tour-arrow{fill:none;stroke:var(--tour-arrow);stroke-width:2.5;stroke-linecap:round;stroke-dasharray:1;stroke-dashoffset:1;animation:tour-draw .46s cubic-bezier(.3,.7,.4,1) .26s forwards}.tour-arrowhead{fill:none;stroke:var(--tour-arrow);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;opacity:0;animation:tour-fade-in .16s ease .68s forwards}.tour-card{position:fixed;left:0;top:0;width:436px;display:flex;align-items:flex-end;gap:2px;outline:none;will-change:transform;animation:tour-card-in .48s var(--ease-rise) 80ms both}.tour-card[data-corbie=right]{flex-direction:row-reverse}.tour-card[data-compact]{width:calc(100% - 32px)}.tour-card[data-align=top] .tour-corbie{align-self:flex-start}.tour-root[data-phase=closing] .tour-card{opacity:0;translate:0 8px;transition:opacity .2s ease,translate .2s ease}.tour-root[data-phase=finishing] .tour-card{animation:tour-card-out .32s ease .98s both}.tour-corbie{flex:none;position:relative;z-index:1}.tour-corbie-flip{transition:transform .3s var(--ease-snap)}.tour-corbie[data-facing=left] .tour-corbie-flip{transform:scaleX(-1)}.tour-corbie-hop{transform-origin:50% 100%;animation:tour-hop .64s var(--ease-rise) both}.tour-bubble{flex:1 1 auto;min-width:0;position:relative;background:var(--vessel);border:1px solid var(--shoal);border-radius:18px;box-shadow:var(--lift-2);padding:14px 18px;transition:border-color var(--dur-fast) ease}.tour-root .tour-card:focus,.tour-root .tour-card:focus-visible{outline:none}.tour-card:focus-visible .tour-bubble{border-color:var(--accent-edge)}.tour-bubble:before{content:"";position:absolute;width:14px;height:14px;left:-8px;bottom:52px;background:var(--vessel);border-left:1px solid var(--shoal);border-bottom:1px solid var(--shoal);transform:rotate(45deg)}.tour-card[data-corbie=right] .tour-bubble:before{left:auto;right:-8px;transform:rotate(-135deg)}.tour-card[data-compact] .tour-bubble:before{bottom:36px}.tour-card[data-align=top] .tour-bubble:before{bottom:auto;top:22px}.tour-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.tour-eyebrow{display:inline-flex;align-items:baseline;gap:8px;margin:0;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--stone);white-space:nowrap}.tour-eyebrow-part{color:var(--accent);font-weight:600}.tour-eyebrow-count{font-variant-numeric:tabular-nums}.tour-skip{flex:none;background:none;border:0;padding:6px 2px;min-height:32px;font:inherit;font-size:13px;color:var(--stone);cursor:pointer;text-decoration:underline;text-decoration-color:var(--shoal);text-underline-offset:3px;transition:color var(--dur-fast) ease,text-decoration-color var(--dur-fast) ease}.tour-skip:hover{color:var(--accent);text-decoration-color:currentColor}.tour-text{animation:tour-text-in .32s var(--ease-rise) both}.tour-title{margin:6px 0 0;font-size:20px;line-height:1.2;font-weight:600;letter-spacing:-.01em;color:var(--mist)}.tour-badge{display:inline-block;margin-left:8px;padding:2px 8px;border-radius:999px;border:1px solid var(--accent-edge);background:var(--accent-wash);color:var(--accent);font-family:var(--font-sans),system-ui,sans-serif;font-size:11px;font-weight:600;letter-spacing:.04em;vertical-align:3px}.tour-body{margin:6px 0 0;font-size:15px;line-height:1.5;color:var(--reed)}.tour-link{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:14px;font-weight:600;color:var(--accent);text-decoration:none}.tour-link:hover{text-decoration:underline;text-underline-offset:3px}.tour-link-arrow{transition:translate var(--dur-fast) var(--ease-rise)}.tour-link:hover .tour-link-arrow{translate:3px 0}.tour-preview{display:block;margin-top:12px}.tour-preview-btn{display:inline-flex;align-items:center;gap:8px;padding:7px 14px 7px 10px;border-radius:var(--radius-sm);border:1px solid var(--field-edge);background:var(--vessel);color:var(--mist);font-size:14px;font-weight:500;animation:tour-beckon 2s ease-in-out infinite}.tour-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px}.tour-dots{display:inline-flex;align-items:center;gap:4px}.tour-dot{width:6px;height:6px;border-radius:999px;background:var(--shoal);transition:width var(--dur-mid) var(--ease-rise),background var(--dur-mid) ease}.tour-dot[data-state=done]{background:var(--accent-edge)}.tour-dot[data-state=now]{width:18px;background:var(--accent)}.tour-actions{display:inline-flex;align-items:center;gap:8px;margin-left:auto}.tour-back{min-height:40px;padding:8px 14px;border-radius:var(--radius-sm);border:1px solid var(--field-edge);background:var(--vessel);color:var(--mist);font:inherit;font-size:14px;font-weight:500;cursor:pointer;transition:border-color var(--dur-fast) ease,color var(--dur-fast) ease}.tour-back:hover{border-color:var(--accent);color:var(--accent)}.tour-next.btn-primary{min-height:40px;padding:9px 16px;font-size:14px;white-space:nowrap}.tour-card[data-compact] .tour-bubble{padding:12px 14px;border-radius:16px}.tour-card[data-compact] .tour-title{font-size:18px}.tour-card[data-compact] .tour-body{font-size:14.5px}.tour-card[data-compact] .tour-dots{display:none}.tour-card[data-compact] .tour-back,.tour-card[data-compact] .tour-next.btn-primary,.tour-card[data-compact] .tour-skip{min-height:44px}.tour-bubble.tour-nudge{animation:tour-nudge .42s ease}@keyframes tour-fade-in{0%{opacity:0}to{opacity:1}}@keyframes tour-card-in{0%{opacity:0;translate:0 14px;scale:.96}to{opacity:1;translate:0 0;scale:1}}@keyframes tour-card-out{to{opacity:0;translate:0 10px}}@keyframes tour-text-in{0%{opacity:0;translate:0 6px}to{opacity:1;translate:0 0}}@keyframes tour-hop{0%{transform:translateY(0) scale(1)}28%{transform:translateY(-16px) scale(.96,1.05)}60%{transform:translateY(0) scale(1.06,.93)}80%{transform:translateY(-3px) scale(.99,1.01)}to{transform:translateY(0) scale(1)}}@keyframes tour-draw{to{stroke-dashoffset:0}}@keyframes tour-glow{0%,to{stroke-opacity:.35;stroke-width:6}50%{stroke-opacity:1;stroke-width:12}}@keyframes tour-beckon{0%,to{box-shadow:0 0 0 0 var(--tour-glow)}50%{box-shadow:0 0 0 6px var(--tour-glow)}}@keyframes tour-nudge{0%,to{translate:0 0}20%{translate:-6px 0}40%{translate:5px 0}60%{translate:-3px 0}80%{translate:2px 0}}.practice-help{position:relative;display:inline-flex}.practice-help-btn{background:none;border:none;padding:0;min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink);border-radius:999px;transition:color var(--dur-fast) ease}.practice-help-btn:hover,.practice-help-btn[aria-expanded=true]{color:var(--accent)}.practice-help-menu{position:absolute;top:calc(100% + 2px);right:0;z-index:30;min-width:232px;padding:6px;background:var(--vessel);border:1px solid var(--shoal);border-radius:var(--radius);box-shadow:var(--lift-2);animation:rise-in .2s var(--ease-rise) both}.practice-help-menu[data-align=left]{right:auto;left:0}.practice-help-item{display:flex;align-items:center;gap:10px;width:100%;min-height:44px;padding:8px 10px;background:none;border:0;border-radius:var(--radius-sm);font:inherit;font-size:14px;color:var(--mist);text-align:left;cursor:pointer;transition:background var(--dur-fast) ease,color var(--dur-fast) ease}.practice-help-item:hover{background:var(--accent-wash);color:var(--accent)}.practice-help-item .tutor-mascot{flex:none}@media (prefers-reduced-motion:reduce){.practice-help-menu,.tour-arrow,.tour-bubble.tour-nudge,.tour-card,.tour-corbie-hop,.tour-glow,.tour-preview-btn,.tour-scrim,.tour-text{animation:none}.tour-arrow{stroke-dashoffset:0}.tour-arrowhead{animation:none;opacity:1}.tour-corbie-flip,.tour-dot,.tour-root[data-phase=closing] .tour-card,.tour-stage{transition:none}}