.badge{border-radius:var(--radius-sticker);white-space:nowrap;border:1px solid;align-items:center;gap:4px;padding:2px 8px;font-size:.75rem;font-weight:600;display:inline-flex}.step-validated{background:var(--success-soft);color:var(--success)}.step-next{background:var(--accent-soft);color:var(--accent)}.header-button{padding:0 14px}@media (width<=420px){.header-button{padding:0 12px}}.step-screen{flex-direction:column;height:100dvh;display:flex;overflow:hidden}.panel-tabs{flex:none;margin:10px 16px 0;display:flex}.panel-tabs .control{flex:1}.panels{flex:1;grid-template-rows:minmax(0,1fr);gap:16px;min-height:0;padding:10px 12px 12px;display:grid}.panel{overscroll-behavior:contain;border-radius:var(--radius);background:var(--surface);min-width:0;min-height:0;box-shadow:var(--shadow-lift);overflow-wrap:anywhere;scrollbar-width:thin;border:1.5px solid #0000;flex-direction:column;padding:16px;display:flex;overflow:auto}.panel:not(.panel-cube)>*{flex-shrink:0}.panel[data-active=false]{display:none}.panel-title{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}@media (width>=960px){.panel-tabs{display:none}.panels{grid-template-columns:minmax(260px,1fr) minmax(0,1.9fr) minmax(280px,1fr);gap:0;padding:0}.panel{box-shadow:none;border:0;border-radius:0}.panel+.panel{border-left:1px solid var(--border)}.panel[data-active=false]{display:flex}.panel-title{clip-path:none;width:auto;height:auto;color:var(--muted);font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;margin:0 0 12px;font-size:.6875rem;font-weight:500;position:static;overflow:visible}}.panel-cube{gap:12px;padding:12px;overflow:hidden}.panel-cube .panel-title{margin-bottom:0;padding:4px 4px 0}.cube-stage{border-radius:var(--radius);background:radial-gradient(var(--dot) 1px, transparent 1.2px) 0 0 / 22px 22px, radial-gradient(circle at 50% 42%, var(--stage-glow), var(--stage-edge) 78%);min-height:200px;box-shadow:inset 0 0 0 1px var(--border);flex:1 1 0;position:relative;overflow:hidden}.cube-caption{z-index:1;border-radius:var(--radius-sm);background:var(--ink);max-width:calc(100% - 20px);color:var(--on-ink);pointer-events:none;margin:0;padding:5px 10px;font-size:.8125rem;font-weight:600;position:absolute;top:10px;left:10px}.panel-cube .phase-actions{scrollbar-width:thin;flex:0 auto;min-height:0;max-height:42%;padding:2px 4px;overflow:auto}.panel-cube .phase-actions:empty{display:none}.step-list,.case-gallery{margin:0 0 16px;padding:0;list-style:none}.step-list{flex-direction:column;gap:4px;display:flex}.step-button{text-align:start;justify-content:flex-start;align-items:center;gap:10px;width:100%;padding:6px 10px 6px 6px;display:flex}.step-list .step-button{box-shadow:none;background:0 0;border-color:#0000;font-weight:500}.step-list .step-button:not(:disabled):hover{background:var(--surface-2);box-shadow:none;border-color:#0000;transform:none}.step-list .step-button:not(:disabled):active{transform:none}.step-button[aria-current=step],.step-list .step-button[aria-current=step],.step-list .step-button[aria-current=step]:hover{border-color:var(--accent);background:var(--accent-soft);font-weight:700}.step-button-name{flex:1}.step-index{border-radius:var(--radius-sticker);background:var(--surface-3);width:30px;height:30px;color:var(--muted);font-family:var(--mono);flex:none;place-items:center;font-size:.8125rem;font-weight:700;display:grid}[aria-current=step]>.step-index{background:var(--accent);color:var(--on-accent)}.step-name{margin:4px 0 6px;font-size:1.5rem}.step-explanation{color:var(--muted);margin:0}.step-guide{margin-top:18px}.step-guide-title{margin:0 0 6px;font-weight:700}.step-guide ul{gap:4px;margin:0;padding-left:1.1em;display:grid}.step-guide a{color:var(--accent)}.move-card{border-radius:var(--radius-sm);background:var(--surface-solid);box-shadow:var(--shadow);border:1.5px solid #0000;margin-top:14px;padding:14px 14px 14px 18px;position:relative;overflow:hidden}.move-card:before{background:var(--accent);content:"";width:3px;position:absolute;inset:0 auto 0 0}.move-card-title{font-family:var(--mono);margin:0 0 4px;font-size:.9375rem}.move-card p{color:var(--muted);margin:0;font-size:.9375rem}.cases-prompt{font-family:var(--display);font-stretch:var(--display-stretch);letter-spacing:-.01em;margin:0 0 12px;font-size:1.1875rem;font-weight:700;line-height:1.25}.cases-apply{color:var(--muted);margin:-6px 0 14px;font-size:.875rem}.cases-actions{flex-direction:column;gap:4px;display:flex}.case-gallery{grid-template-columns:repeat(auto-fill,minmax(132px,1fr));gap:10px;display:grid}.case-card{text-align:center;flex-direction:column;justify-content:flex-start;align-items:center;gap:4px;width:100%;height:100%;padding:12px 8px;display:flex}.case-card .cube-thumbnail{width:92px;height:92px;transition:transform .25s var(--ease);margin-bottom:4px}.case-card:hover .cube-thumbnail{transform:scale(1.06)rotate(-2deg)}.case-card[aria-pressed=true]{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}.case-name{color:var(--text);font-weight:700;line-height:1.25}.case-hint{color:var(--muted);font-size:.8125rem;font-weight:500}.phase-actions{flex-direction:column;gap:10px;display:flex}.phase-actions h3,.phase-actions p{margin:0}.phase-actions h3{font-size:1.1875rem}.phase-actions .control.primary{min-height:50px}.case-title{margin:0}.announcement{border-radius:var(--radius-sm);background:var(--ink);color:var(--on-ink);margin:0;padding:12px 14px;font-weight:700}.alternatives summary{justify-content:space-between;list-style:none}.alternatives summary::-webkit-details-marker{display:none}.alternatives summary:after{content:"▾";transition:transform .2s var(--ease)}.alternatives[open] summary:after{transform:rotate(180deg)}.alternative-list{flex-direction:column;gap:10px;margin:10px 0 0;padding:0;list-style:none;display:flex}.alternative{border:1.5px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2);flex-direction:column;align-items:flex-start;gap:6px;padding:10px;display:flex}.alternative-name,.alternative-current{color:var(--muted);font-size:.8125rem;font-weight:600}.alternative .algorithm{font-size:.9375rem}.help-checks{margin:0;padding-inline-start:20px}.help-explanation{border-inline-start:3px solid var(--accent);color:var(--muted);margin:0;padding:8px 12px}.help-steps{flex-direction:column;gap:6px;margin:0;padding:0;list-style:none;display:flex}.help-step{text-align:start;justify-content:flex-start;align-items:center;gap:10px;width:100%;padding:4px 10px;display:flex}.help-step .cube-thumbnail{flex:none;width:44px;height:44px}.home{max-width:820px;margin:0 auto;padding:24px 16px 48px}.home-hero{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);align-items:center;gap:24px;padding:30px;display:flex;position:relative;overflow:hidden}.home-hero-text{flex:1;min-width:0;position:relative}.home-kicker{color:var(--accent);font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;margin:0 0 12px;font-size:.6875rem;font-weight:500;display:inline-block}.home-method{margin:0 0 8px;font-size:clamp(2rem,5vw,2.75rem)}.home-description{color:var(--muted);margin:0 0 20px;font-size:1.0625rem}.home-cta{min-height:54px;padding:0 24px;font-size:1rem}.progress-ring{flex:none;place-items:center;width:132px;height:132px;display:grid;position:relative}.progress-ring svg{position:absolute;inset:0;transform:rotate(-90deg)}.progress-track,.progress-value{fill:none;stroke-width:9px}.progress-track{stroke:var(--surface-3)}.progress-value{stroke:var(--accent);stroke-linecap:butt;transition:stroke-dashoffset .8s var(--ease)}.progress-count{color:var(--muted);font-size:1rem;font-weight:700}.progress-count strong{color:var(--text);font-family:var(--display);font-stretch:var(--display-stretch);font-size:2rem;font-weight:800}@media (width<=600px){.home-hero{flex-direction:column-reverse;align-items:stretch;padding:20px}.progress-ring{width:96px;height:96px}.progress-count strong{font-size:1.5rem}.home-cta{width:100%}}.home-section-title{color:var(--muted);font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;margin:36px 0 12px;font-size:.6875rem;font-weight:500}.home-steps{flex-direction:column;gap:8px;margin:0 0 24px;padding:0;list-style:none;display:flex}.home-step{align-items:stretch;gap:8px;display:flex}.home-step-main{border-radius:var(--radius);flex:1;min-height:72px;padding:10px 14px 10px 10px}.home-step-main .cube-thumbnail{flex:none;width:52px;height:52px}.home-step-text{flex-direction:column;flex:1;min-width:0;display:flex}.home-step-number{color:var(--muted);font-size:.75rem;font-weight:600}.home-step-name{font-size:1rem;font-weight:700}.home-step[data-validated=true] .step-index{background:var(--success-soft);color:var(--success)}.home-step[data-next=true] .home-step-main{border-color:var(--accent);box-shadow:inset 3px 0 0 var(--accent)}.home-step[data-next=true] .step-index{background:var(--accent);color:var(--on-accent)}@media (width<=600px){.home-step-main .cube-thumbnail{width:44px;height:44px}}.home-reset{color:var(--muted)}.reset-confirm{border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);border:1.5px solid #0000;flex-wrap:wrap;align-items:center;gap:8px;padding:16px;display:flex}.reset-confirm p{flex-basis:100%;margin:0;font-weight:600}.lexicon{border-radius:var(--radius);background:var(--surface-solid);width:min(960px,100vw - 24px);max-width:none;max-height:calc(100dvh - 24px);color:var(--text);box-shadow:var(--shadow-float);border:0;padding:0}.lexicon[open]{animation:lexicon-in .25s var(--ease)}.lexicon::backdrop{background:#1010128c}@keyframes lexicon-in{0%{opacity:0;transform:translateY(12px)scale(.98)}}@media (prefers-reduced-motion:reduce){.lexicon[open]{animation:none}}.lexicon-body{padding:20px}.lexicon-header{justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;display:flex}.lexicon-header h2{margin:0;font-size:1.5rem}.lexicon-header form{margin:0}.lexicon-layout{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:20px;display:grid}@media (width<=760px){.lexicon-layout{grid-template-columns:minmax(0,1fr)}}.lexicon-preview{flex-direction:column;gap:12px;display:flex}.lexicon-stage{aspect-ratio:1;border-radius:var(--radius);background:radial-gradient(var(--dot) 1px, transparent 1.2px) 0 0 / 22px 22px, radial-gradient(circle at 50% 42%, var(--stage-glow), var(--stage-edge) 78%);width:100%;max-height:min(380px,45dvh);box-shadow:inset 0 0 0 1px var(--border);position:relative;overflow:hidden}.lexicon-stage-controls{justify-content:center;gap:8px;display:flex}.lexicon-stage-controls .control{font-size:.875rem}.lexicon-detail{border-radius:var(--radius);box-shadow:var(--shadow);background:var(--surface-2);border:1.5px solid #0000;align-items:flex-start;gap:16px;padding:14px;display:flex}.lexicon-token{border:1px solid var(--line);border-radius:var(--radius);background:var(--accent);min-width:64px;height:64px;color:var(--on-accent);box-shadow:var(--shadow-press);font-family:var(--mono);flex:none;place-items:center;margin:0;padding:0 10px;font-size:1.75rem;font-weight:700;display:grid}.lexicon-description{margin:0 0 8px;font-weight:500}.lexicon-picker{min-width:0}.lexicon-intro{color:var(--muted);margin:0 0 16px;font-size:.9375rem}.lexicon-section{color:var(--muted);font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;margin:0 0 8px;font-size:.6875rem;font-weight:500}.lexicon-met{flex-wrap:wrap;gap:6px;margin:0 0 18px;padding:0;list-style:none;display:flex}.lexicon-empty{color:var(--muted);margin:0 0 18px;font-size:.875rem}.lexicon-grids{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.lexicon-grid-section:nth-child(-n+2){grid-column:1/-1}@media (width<=420px){.lexicon-grids{grid-template-columns:minmax(0,1fr)}}.lexicon-grid{gap:6px;display:grid}.move-button{min-width:0;font-family:var(--mono);padding:0 4px;font-weight:700;position:relative}.move-button[data-met=true]:after{background:var(--success);content:"";border-radius:50%;width:6px;height:6px;position:absolute;top:5px;right:5px}.lexicon-met .move-button{min-width:52px}.lexicon-met .move-button:after{display:none}.move-button[aria-pressed=true]{border-color:var(--line);background:var(--accent);color:var(--on-accent);box-shadow:var(--shadow-accent)}.move-button[aria-pressed=true]:after{background:var(--on-accent)}@media (width<=760px){.lexicon-body{padding:16px}.lexicon-stage{aspect-ratio:auto;height:min(300px,36dvh)}}.formulas{max-width:980px;margin:0 auto;padding:24px 16px 48px}.formulas-hero{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:8px;display:flex}.formulas-title{margin:0 0 8px;font-size:clamp(2rem,5vw,3rem)}.formulas-intro{max-width:60ch;color:var(--muted);margin:0}.formulas-print{flex:none}.formulas-controls{flex-wrap:wrap;gap:8px 16px;margin-top:16px;display:flex}.formulas-shared{border-radius:var(--radius-sm);background:var(--ink);color:var(--on-ink);flex-wrap:wrap;align-items:baseline;gap:4px 12px;margin:0 0 12px;padding:12px 16px;font-size:.875rem;font-weight:600;display:flex}.formulas-shared .formula-moves{font-size:1.125rem;font-weight:700}.formulas-step{margin-top:32px}.formulas-step-name{flex-direction:column;margin:0 4px 12px;font-size:1.375rem;display:flex}.formulas-cases{grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr));gap:10px;margin:0;padding:0;list-style:none;display:grid}.formula-card{border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);break-inside:avoid;border:1.5px solid #0000;align-items:flex-start;gap:12px;padding:14px;display:flex}.formula-card .cube-thumbnail{flex:none;width:80px;height:80px}.formula-text{flex-direction:column;flex:1;gap:4px;min-width:0;display:flex}.formula-case{margin:0;font-weight:700}.formula-hint{color:var(--muted);margin:0;font-size:.8125rem}.formula-algorithm{flex-wrap:wrap;align-items:baseline;gap:4px 8px;margin:6px 0 0;display:flex}.formula-moves{font-family:var(--mono);overflow-wrap:anywhere;font-size:1.0625rem;font-weight:700}.formula-trigger{vertical-align:top;flex-direction:column;display:inline-flex}.formula-trigger-moves{border-bottom:2px solid var(--accent);white-space:nowrap}.formula-trigger-name{color:var(--muted);font-size:.625rem;font-weight:600;line-height:1.4}.formula-outcome{color:var(--muted);font-family:var(--mono);font-size:.75rem;font-weight:500}.formulas-condensed .formulas-step{margin-top:28px}.formulas-condensed .formulas-step-name{border-bottom:2px solid var(--text);flex-direction:row;align-items:baseline;gap:10px;margin:0 0 8px;padding-bottom:6px;font-size:1.125rem}.formulas-condensed .formulas-shared{margin-bottom:6px;padding:8px 12px}.formulas-table{border-collapse:collapse;border-radius:var(--radius-sm);background:var(--surface);width:100%;box-shadow:var(--shadow);border:1.5px solid #0000}.formulas-table th,.formulas-table td{text-align:start;vertical-align:middle;padding:4px 10px}.formulas-table thead th{border-bottom:1px solid var(--border-strong);color:var(--muted);font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;padding-top:6px;padding-bottom:6px;font-size:.6875rem;font-weight:500}.formula-row{break-inside:avoid}.formula-row+.formula-row{border-top:1px solid var(--border)}.formula-row-thumbnail{width:32px;padding-inline-end:0}.formula-row .cube-thumbnail{width:32px;height:32px;display:block}.formula-row .formula-case{width:100%;font-size:.875rem;font-weight:500;line-height:1.25}.formula-row-moves,.formula-row .formula-outcome{white-space:nowrap;width:1%}.formula-row .formula-moves{overflow-wrap:normal}.formula-row .formula-outcome{text-align:end;padding-inline-start:4px}@media (width<=640px){.formulas-table thead{display:none}.formulas-table,.formulas-table tbody{display:block}.formula-row{grid-template-columns:32px minmax(0,1fr) auto;align-items:center;gap:2px 10px;padding:6px 10px;display:grid}.formula-row td,.formula-row th{width:auto;padding:0;display:block}.formula-row-moves,.formula-row .formula-outcome{white-space:normal;grid-column:2/-1}.formula-row .formula-outcome{text-align:start;width:auto}.formula-row .formula-moves{overflow-wrap:anywhere}}@media (width<=600px){.formulas-hero{flex-direction:column}}@media print{body,.formula-card{box-shadow:none;color:#000;background:#fff}.site-header,.formulas-print{display:none}.formulas{max-width:none;padding:0}.formulas-step{margin-top:16px}.formulas-step-name{break-after:avoid}.formula-card{border-color:#ccc}.formulas-controls{display:none}.formulas-shared{background:0 0;border:1px solid #ccc}.formulas-condensed .formulas-hero{margin-bottom:0}.formulas-condensed .formulas-title{margin:0;font-size:1.25rem}.formulas-condensed .home-kicker{margin-bottom:4px}.formulas-condensed .formulas-step{margin-top:10px}.formulas-condensed .formulas-step-name{border-bottom-color:#000;margin-bottom:4px;padding-bottom:2px;font-size:.875rem}.formulas-condensed .formulas-shared{margin-bottom:4px;padding:2px 8px;font-size:.75rem}.formulas-condensed .formulas-shared .formula-moves{font-size:.875rem}.formulas-table{box-shadow:none;border-color:#bbb;border-radius:0}.formulas-table th,.formulas-table td{padding:1px 6px}.formulas-table thead th{color:#444;border-bottom-color:#bbb;padding-top:2px;padding-bottom:2px;font-size:.5rem}.formula-row+.formula-row{border-top-color:#ddd}.formula-row-thumbnail,.formula-row .cube-thumbnail{width:22px}.formula-row .cube-thumbnail{height:22px}.formula-row .formula-case{font-size:.6875rem;line-height:1.2}.formula-row .formula-moves{font-size:.75rem}.formula-row .formula-outcome{font-size:.625rem}}