/* Cross-module study rewards, focused practice and arcade links */
:root{--boost-green:#72e8bf;--boost-bg:#10273a} .boost-panel{color:#eaf7ff;background:linear-gradient(140deg,#143045,#102337);border:1px solid #547889;border-radius:20px;padding:24px;margin:26px auto;max-width:1100px;font:15px/1.58 system-ui,-apple-system,'Segoe UI',sans-serif;box-sizing:border-box} .boost-panel *{box-sizing:border-box}.boost-panel h2{margin:0 0 8px;color:#fff;font-size:clamp(21px,2.6vw,29px)}.boost-panel h3{font-size:18px;color:#eaf7ff;margin:14px 0 7px}.boost-panel p{color:#c6dce8;margin:7px 0 12px}.boost-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px}.boost-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0}.boost-btn{border:1px solid #84b6bc;border-radius:10px;padding:10px 14px;background:#22445b;color:#fff;cursor:pointer;font:600 14px system-ui,sans-serif}.boost-btn.active,.boost-btn.primary{background:#72e8bf;color:#0a2927;border-color:#72e8bf}.boost-btn:disabled{opacity:.46;cursor:not-allowed}.boost-panel label{display:block;margin:11px 0 6px;font-weight:700}.boost-panel select{background:#0f2537;border:1px solid #688a9b;color:#fff;border-radius:9px;padding:10px;max-width:100%;font:inherit}.boost-card{background:#0a1b2a;border:1px solid #426277;border-radius:13px;padding:16px;margin-top:14px}.boost-question{font-size:17px;font-weight:700;color:white;margin:12px 0}.boost-choices{display:grid;gap:9px}.boost-choice{text-align:left;line-height:1.5;display:block;width:100%;background:#1a3446;border:1px solid #608092;border-radius:10px;color:#f1f9ff;padding:12px;cursor:pointer;font:inherit}.boost-choice:hover:not(:disabled){background:#265166}.boost-choice.correct{border-color:#62edaf;background:#144b3c}.boost-choice.incorrect{border-color:#ffb7a9;background:#57313a}.boost-feedback{padding:13px;border:1px solid #62edaf;border-radius:11px;background:#173b39;margin-top:13px;color:#e9fff8}.boost-feedback.wrong{border-color:#ecb3a0;background:#45313b}.boost-progress{height:7px;background:#27465b;border-radius:6px;overflow:hidden;margin:10px 0}.boost-progress>div{background:#73e6b9;height:100%;transition:width .3s}.boost-tag{padding:5px 9px;border-radius:50px;background:#24455a;color:#d5ecf0;font-size:12px}.boost-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:11px}.boost-lesson{padding:15px;border-radius:12px;border:1px solid #43657b;background:#112c40}.boost-lesson strong{color:#85f0c5}.boost-muted{color:#bbd0dc;font-size:13px}.boost-fish{background:#f7fcff;color:#112e40;border-radius:11px;padding:15px;display:flex;align-items:stretch;justify-content:center;max-width:460px;font:700 15px/1.4 ui-monospace,monospace;gap:8px}.boost-fish>div{text-align:center;min-width:70px}.boost-fish .center{border-left:2px solid #284961;border-right:2px solid #284961;min-width:106px}.boost-fish .half+ .half{border-top:2px solid #284961}.boost-reward-layer{position:fixed;inset:0;background:rgba(2,8,19,.86);display:grid;place-items:center;padding:16px;z-index:2147483640;backdrop-filter:blur(6px)}.boost-reward-box{background:linear-gradient(150deg,#1b4250,#11283c);border:2px solid #73e9bc;color:#fff;border-radius:24px;padding:30px;text-align:center;max-width:510px;width:100%;box-shadow:0 22px 90px #000b}.boost-reward-box h2{font:800 31px system-ui;margin:10px 0}.boost-reward-box p{color:#dceff4;font:16px/1.6 system-ui}.boost-coins{display:flex;justify-content:center;gap:18px;margin:15px}.boost-coin{font-size:24px;font-weight:900;display:grid;place-items:center;border-radius:50%;background:radial-gradient(circle at 30% 25%,#fff4a7,#f4ac31 70%,#b06e17);border:3px solid #ffe598;box-shadow:0 4px 0 #83530e;animation:boost-bounce .85s ease-in-out infinite alternate;width:56px;height:56px;color:#734307}.boost-coin:nth-child(2){animation-delay:.18s}.boost-coin:nth-child(3){animation-delay:.36s}@keyframes boost-bounce{to{transform:translateY(-21px) rotate(15deg)}}.boost-arcade-link{display:inline-flex;align-items:center;gap:9px;background:#173f42;color:#b8ffe6;border:1px solid #3e9c89;border-radius:12px;padding:12px 15px;text-decoration:none;font-weight:800;margin:10px 0}.boost-arcade-link:hover{background:#246d64}.boost-panel button:focus-visible,.boost-panel a:focus-visible{outline:3px solid #fff;outline-offset:3px}@media(prefers-reduced-motion:reduce){.boost-coin{animation:none}}@media(max-width:600px){.boost-panel{padding:15px}.boost-grid{grid-template-columns:1fr}}