:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f4f5f6;--surface:#fff;--surface-muted:#e6e8eb;--ink:#171a17;--ink-soft:#596058;--line:#252922;--accent:#171a17;--accent-strong:#000;--blue:#31343a;--amber:#9f6700;--danger:#b6403a;--danger-soft:#ffe4df;--success:#16824f;--success-soft:#dff8e6;--shadow:0 28px 80px #171a171f;--soft-line:#171a171f;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{background:var(--bg);min-width:320px;min-height:100vh;color:var(--ink);margin:0}button,a{font:inherit}button{cursor:pointer}button:disabled{cursor:wait;opacity:.7}a{color:var(--accent-strong)}.app-shell{grid-template-rows:1fr auto;gap:16px;min-height:100vh;padding:32px;display:grid}.app-frame{width:min(1120px,100%);min-height:calc(100vh - 112px);margin:0 auto;display:grid}.attribution{color:#171a177a;text-align:center;width:min(1120px,100%);margin:0 auto;font-size:.78rem;font-weight:650;line-height:1.45}.attribution a{color:inherit;text-underline-offset:3px;text-decoration-thickness:1px}.panel,.home-grid,.quiz-layout,.results-panel{background:var(--surface);box-shadow:var(--shadow);border:0;border-radius:18px;align-self:center}.home-grid{grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);gap:0;padding:0;display:grid;position:relative;overflow:hidden}.home-grid>*,.quiz-layout>*,.results-panel>*,.panel>*{z-index:1;position:relative}.intro{border-right:1px solid var(--soft-line);flex-direction:column;justify-content:center;min-height:420px;padding:40px;display:flex;position:relative}.intro:after{content:"LEX-170K";writing-mode:vertical-rl;color:#171a1757;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.72rem;font-weight:900;position:absolute;top:20px;right:18px}.eyebrow{color:var(--accent);letter-spacing:0;text-transform:uppercase;margin:0 0 10px;font-size:.75rem;font-weight:800}h1,h2,p{overflow-wrap:anywhere}h1{letter-spacing:0;margin:0;font-family:ui-serif,Georgia,Times New Roman,serif;font-size:clamp(2.25rem,6vw,5.25rem);font-weight:900;line-height:.95}h2{letter-spacing:0;margin:0;font-family:ui-serif,Georgia,Times New Roman,serif;font-size:clamp(2.5rem,7vw,5.75rem);font-weight:900;line-height:.92}.intro-copy{max-width:620px;color:var(--ink-soft);margin:24px 0 0;font-size:1.15rem;line-height:1.65}.action-row,.header-actions{flex-wrap:wrap;gap:10px;display:flex}.action-row{margin-top:36px}.primary-button,.secondary-button,.text-button,.option-button,.icon-button{border:1px solid #0000;border-radius:2px}.primary-button,.secondary-button{justify-content:center;align-items:center;gap:10px;min-height:48px;padding:0 18px;font-weight:800;display:inline-flex}.primary-button{background:var(--accent);color:#fff;box-shadow:none}.primary-button:hover{background:var(--accent-strong)}.secondary-button{border-color:var(--soft-line);color:var(--ink);box-shadow:none;background:0 0}.secondary-button:hover,.text-button:hover{background:var(--surface-muted)}.metrics-grid{align-self:center;gap:12px;padding:28px;display:grid}.metric{background:var(--surface);border:1px solid var(--soft-line);border-radius:12px;grid-template-columns:auto 1fr;grid-template-areas:"icon label""icon value";gap:2px 12px;padding:18px;display:grid}.metric-icon{width:42px;height:42px;color:var(--ink);background:#eef0f2;border-radius:2px;grid-area:icon;place-items:center;display:grid}.metric-icon svg{width:20px;height:20px}.metric-label{color:var(--ink-soft);grid-area:label;font-size:.86rem;font-weight:700}.metric strong{grid-area:value;font-size:1.45rem;line-height:1.1}.text-button{color:var(--accent-strong);background:0 0;padding:8px 10px;font-weight:800}.quiz-layout{gap:18px;padding:24px;display:grid;position:relative;overflow:hidden}.quiz-header{justify-content:space-between;align-items:flex-start;gap:24px;display:flex}.quiz-header h1{font-size:clamp(1.6rem,4vw,3rem);line-height:1.05}.text-button.danger{color:var(--danger)}.stat-strip{flex-wrap:wrap;gap:10px;display:flex}.stat-strip span{background:var(--surface);border:1px solid var(--soft-line);color:var(--ink-soft);border-radius:999px;padding:8px 10px;font-size:.92rem;font-weight:800}.question-panel{align-content:center;gap:24px;min-height:520px;display:grid}.word-block{border:1px solid var(--soft-line);background:#f7f8f9;border-radius:16px;padding:24px;position:relative}.options-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.option-button{background:var(--surface);border:1px solid var(--soft-line);min-height:116px;color:var(--ink);text-align:left;border-radius:14px;grid-template-columns:32px 1fr;align-items:start;gap:12px;padding:18px;line-height:1.45;transition:background .14s,border-color .14s,opacity .14s,transform .14s;display:grid;position:relative}.option-button:hover,.option-button:focus-visible{border-color:#171a175c;outline:none;transform:translateY(-2px);box-shadow:0 14px 30px #171a171a}.option-button span{background:var(--surface-muted);border:1px solid var(--soft-line);width:32px;height:32px;color:var(--accent-strong);border-radius:8px;place-items:center;font-weight:900;display:grid}.option-button--correct{background:var(--success-soft);border-color:var(--success);animation:.52s ease-out answerCorrect}.option-button--correct span{background:var(--success);border-color:var(--success);color:#fff}.option-button--correct:after,.option-button--missed:after{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.72rem;font-weight:900;position:absolute;top:10px;right:12px}.option-button--correct:after{content:"MATCH";color:var(--success)}.option-button--missed{background:var(--danger-soft);border-color:var(--danger);animation:.52s ease-out answerMissed}.option-button--missed span{background:var(--danger);border-color:var(--danger);color:#fff}.option-button--missed:after{content:"MISS";color:var(--danger)}.option-button--muted{opacity:.5}.feedback-line{min-height:24px;color:var(--ink-soft);font-weight:800}.question-loading{color:var(--ink-soft);text-align:center;font-weight:800}.results-panel,.loading-panel,.error-panel{justify-items:start;gap:22px;padding:32px;display:grid;position:relative}.results-panel{align-self:center}.results-panel h1,.loading-panel h1,.error-panel h1{font-size:clamp(2rem,5vw,4.5rem)}.metrics-grid.results{grid-template-columns:repeat(3,minmax(0,1fr));width:100%}.loading-panel svg{width:36px;height:36px;color:var(--accent)}.icon-button{background:var(--surface-muted);width:38px;height:38px;color:var(--ink);font-size:1.4rem;font-weight:800}@keyframes answerCorrect{0%{transform:scale(1);box-shadow:0 0 #16824f00}36%{transform:scale(1.015);box-shadow:0 0 0 8px #16824f24}to{transform:scale(1);box-shadow:0 0 #16824f00}}@keyframes answerMissed{0%{transform:translate(0)}18%{transform:translate(-5px)}36%{transform:translate(5px)}54%{transform:translate(-3px)}to{transform:translate(0)}}@media (width<=780px){.app-shell{padding:12px}.app-frame{min-height:calc(100vh - 72px)}.home-grid,.quiz-layout,.results-panel,.loading-panel,.error-panel{padding:18px}.home-grid,.options-grid,.metrics-grid.results{grid-template-columns:1fr}.intro{border-right:0;border-bottom:1px solid var(--soft-line);min-height:320px}.quiz-header{display:grid}.question-panel{min-height:0}.option-button{min-height:96px}}