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var(--space-5)}.test-form__grid{grid-template-columns:1fr}}.settings-cog__action{width:100%;padding:var(--space-3);background:transparent;border:none;cursor:pointer;text-align:left;font-family:inherit;font-size:14px;color:var(--color-ink);border-radius:var(--radius-control)}.settings-cog__action:hover{background:#f8fafc}.landing h1{font-size:28px;margin:0 0 var(--space-4)}.landing dl{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;text-align:left;margin:var(--space-4) auto;max-width:360px;font-size:14px}.landing dt{color:#6b7280}.landing nav{margin-top:var(--space-4);display:flex;flex-wrap:wrap;gap:var(--space-3);justify-content:center}.landing a{color:var(--color-primary);text-decoration:none;font-weight:600}#app:has(.landing--dev):before{content:"";position:fixed;inset:0;z-index:-1;background:linear-gradient(135deg,#5100ff,#8b3dff,#00007c,#1e4dff,#bac9ff 72%,#5100ff);background-size:300% 300%;animation:il-gradient 22s ease infinite}@keyframes il-gradient{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}@media (prefers-reduced-motion: reduce){#app:has(.landing--dev):before{animation:none}}.landing--dev{background:transparent;box-shadow:none;border-radius:0;padding:0;width:100%;max-width:none;min-height:calc(100vh - 48px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-6);color:#fff;text-align:center}.landing--dev h1{margin:0;font-size:clamp(36px,6vw,72px);font-weight:800;letter-spacing:-.02em;line-height:1.05;max-width:14ch;color:#fff;text-shadow:0 2px 28px rgba(0,0,46,.35)}.landing--dev .landing__tagline{margin:0;font-size:15px;color:#ffffffd9;max-width:56ch}.landing--dev .landing__tagline code{background:#ffffff29;padding:2px 6px;border-radius:4px;font-size:13px}.landing--dev .landing__env{margin:0;padding:var(--space-4) var(--space-5);display:grid;grid-template-columns:auto 1fr;gap:6px 16px;max-width:360px;font-size:14px;text-align:left;background:#ffffff1f;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.22);border-radius:14px;color:#fff}.landing--dev .landing__env dt{color:#ffffffb3}.landing--dev .landing__env dd{color:#fff;margin:0}.landing--dev nav{margin:0;display:flex;flex-wrap:wrap;gap:var(--space-3);justify-content:center}.landing--dev nav a{color:#fff;text-decoration:none;font-weight:600;padding:10px 18px;border-radius:999px;background:#ffffff29;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.3);transition:background var(--transition-default),transform var(--transition-default)}.landing--dev nav a:hover{background:#ffffff47;transform:translateY(-1px)}.landing--dev nav a:focus-visible{outline:none;box-shadow:0 0 0 3px #fff9}@keyframes fade-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}@keyframes spinner{to{transform:rotate(360deg)}}@keyframes study-panel-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 1280px){.player-card__body--fallback{grid-template-columns:1fr}.player-card__body--fallback .answer-tiles{grid-column:1}}@media (max-width: 900px){.answer-tiles{grid-template-columns:repeat(var(--tile-cols-tablet, 2),minmax(0,1fr));gap:20px}}@media (max-width: 640px){body{background:#fff}.player-card:not(.player-card--auto){width:100%;max-width:100%;min-height:100vh;background:transparent;border-radius:0;box-shadow:none;overflow:visible}.player-card__header{position:sticky;top:0;z-index:10;background:#fff;padding:var(--space-5) 25px var(--space-3)}.player-card__body{flex:1;justify-content:center;padding:var(--space-6) 25px}.player-card__footer{position:sticky;bottom:0;z-index:10;flex-direction:column;align-items:stretch;gap:var(--space-4);background:#fff;padding:var(--space-4) 25px var(--space-6)}.player-card__footer .submit-btn{align-self:stretch}.question-stem,.question-stem-text{font-size:var(--font-size-stem-mobile)!important}.answer-tiles{grid-template-columns:1fr;gap:16px;margin-bottom:0}.submit-btn{width:100%;height:48px;font-size:18px}}