:root{color-scheme:dark;--bg:#10141e;--card:#171e2b;--line:#2b3445;--text:#f3f5f1;--muted:#9ba8bc;--lime:#c0f779;--red:#fb7185;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-size:15px}button,input,a{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button,input{font:inherit}button{cursor:pointer}button:disabled{opacity:.38;cursor:default}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--lime);outline-offset:4px}button{color:inherit}button:not(:disabled):hover{filter:brightness(1.12)}.topbar{max-width:1300px;margin:auto;padding:26px 54px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:20px}.site-brand{display:flex;gap:12px;align-items:center;font-size:12px;font-weight:750;letter-spacing:1.5px}.brand-mark{background:var(--lime);color:var(--bg);width:37px;height:37px;display:grid;place-content:center;font-size:25px;position:relative;letter-spacing:-3px;border-radius:9px}.brand-mark span{position:absolute;left:23px;top:3px}.brand-sub{display:block;font-size:9px;letter-spacing:3px;color:var(--muted);margin-top:4px}nav{display:flex;gap:24px;align-items:center}.nav-button,.text-button,.icon-button{background:none;border:0}.nav-button{color:var(--muted);font-size:13px}.button{border:1px solid transparent;border-radius:10px;min-height:48px;padding:13px 21px;display:inline-flex;align-items:center;justify-content:center;gap:20px;font-weight:650;font-size:14px}.primary{background:var(--lime);color:#151d13}.secondary{background:#202837;border-color:#354154}.small{padding:10px 15px;min-height:40px;font-size:12px}.layout{max-width:1200px;margin:0 auto;padding:52px 44px 60px;display:grid;grid-template-columns:1fr 480px;gap:80px;align-items:start}.back-link{display:block;font-size:12px;color:var(--muted);margin-bottom:35px}.eyebrow{display:block;font-size:10px;font-weight:700;letter-spacing:2px;color:var(--muted)}h1{font-size:80px;font-weight:800;letter-spacing:-6px;margin:15px 0 21px;line-height:1.05}h1 span{color:var(--lime)}h1 i{color:var(--lime);font-style:normal}.lead{font-size:29px;line-height:1.32;font-weight:550;letter-spacing:-.9px;margin:0 0 16px}.description{font-size:14px;line-height:1.8;color:var(--muted);max-width:350px;margin:0}.feature-row{display:flex;gap:25px;margin:29px 0;color:var(--muted);font-size:11px}.feature-row b{font-size:19px;color:var(--text);margin-right:4px}.intro-actions{display:flex;gap:10px;flex-wrap:wrap}.account-note{font-size:11px;color:var(--muted);line-height:1.7;max-width:340px;margin:16px 0 35px}.how-card{border-top:1px solid var(--line);padding-top:24px;max-width:350px}.how-card ol{list-style:none;padding:0;margin:20px 0 0}.how-card li{display:flex;gap:16px;margin-bottom:21px}.how-card li>span{font-family:ui-monospace,monospace;color:var(--lime);font-size:12px;padding-top:3px}.how-card b{font-size:13px;font-weight:600}.how-card p{color:var(--muted);font-size:12px;line-height:1.5;margin:5px 0 0}.game-card{background:var(--card);border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:0 18px 65px #0003}.game-top{display:flex;justify-content:space-between;align-items:center;padding:18px 23px;border-bottom:1px solid var(--line);font-size:10px;font-weight:600;letter-spacing:1.3px}.game-top>div{display:flex;gap:8px;align-items:center}.live-dot{width:6px;height:6px;background:var(--lime);border-radius:50%;box-shadow:0 0 10px #c0f77955}.icon-button{color:var(--muted);font-size:22px;min-width:32px;height:30px;border-radius:6px}.icon-button[aria-pressed=true]{color:var(--lime)}.stats{display:flex;justify-content:space-between;padding:23px 25px 3px;gap:15px}.stats small{display:block;font-size:9px;letter-spacing:1.5px;color:var(--muted);margin-bottom:8px}.stats strong{font-size:24px;font-weight:650;font-variant-numeric:tabular-nums}.stats strong span{font-size:13px;color:var(--muted);font-weight:400}.stats .hearts{font-size:17px;color:var(--lime);white-space:nowrap;letter-spacing:1px;line-height:29px}.hearts .empty{color:#3d4758;font-size:17px}.arena{position:relative;aspect-ratio:480/490;overflow:hidden;touch-action:manipulation}canvas{display:block;width:100%;height:100%}.arena-overlay{position:absolute;inset:0;background:linear-gradient(0deg,#171e2bf2 5%,#171e2bb5 60%,#171e2b11);display:flex;align-items:center;justify-content:end;flex-direction:column;padding:35px 20px;text-align:center}.arena-overlay[hidden]{display:none}.overlay-pill{font-size:9px;letter-spacing:1.4px;border:1px solid #526742;color:var(--lime);border-radius:20px;padding:7px 12px;background:#19291cbf}.arena-overlay h2{font-size:26px;letter-spacing:-.8px;margin:18px 0 8px}.arena-overlay p{font-size:12px;color:var(--muted);margin:0 0 21px}.game-bottom{padding:0 25px 19px}.game-message{min-height:25px;text-align:center;font-size:12px;color:var(--muted);line-height:1.5;margin-bottom:12px}.game-message.success{color:var(--lime)}.game-message.error{color:var(--red)}.progress-track{height:4px;background:#303a4b;border-radius:3px;overflow:hidden;margin-bottom:19px}.progress-track span{display:block;height:100%;background:var(--lime);width:0;transition:width .25s}.controls{display:grid;grid-template-columns:43px 1fr 43px;gap:10px}.controls .small{padding:0;font-size:18px}.shoot{background:var(--lime);color:#152111;font-size:12px;letter-spacing:2px}.shoot span{font-size:20px;line-height:1}.keyboard-hint{text-align:center;font-size:8px;letter-spacing:1.2px;color:#8290a4;margin:15px 0 0}.keyboard-hint span{padding:0 8px}.progress-card{margin-top:14px;display:flex;justify-content:space-between;align-items:center;gap:15px;padding:19px 20px;border:1px solid var(--line);border-radius:12px;background:#151b26}.progress-card .eyebrow{font-size:8px;letter-spacing:1.2px;margin-bottom:6px}.progress-card b{font-size:12px;font-weight:550}.text-button{color:var(--lime);font-size:11px;padding:8px 0}footer{max-width:1190px;margin:0 auto;border-top:1px solid var(--line);padding:26px 40px;display:flex;gap:25px;font-size:9px;letter-spacing:1px;color:var(--muted)}footer span{letter-spacing:0}footer a{margin-left:auto;letter-spacing:0}dialog{color:var(--text);background:var(--card);border:1px solid #405069;border-radius:18px;width:min(510px,calc(100% - 30px));padding:34px;max-height:85dvh;box-shadow:0 24px 120px #0009}dialog::backdrop{background:#080d18c9;backdrop-filter:blur(5px)}.modal-close{position:absolute;right:13px;top:9px;font-size:28px;background:none;border:0;color:var(--muted);width:36px;height:36px}dialog h2{font-size:28px;letter-spacing:-1px;margin:13px 0 14px}dialog p{color:var(--muted);line-height:1.65;font-size:13px}dialog .button{width:100%;margin-top:10px}.auth-tabs{display:flex;gap:8px;margin:22px 0 18px}.auth-tabs button{background:#232c3b;border:1px solid var(--line);padding:9px 15px;border-radius:8px;font-size:12px}.auth-tabs .active{color:var(--lime);border-color:#88ac57}.auth-form{display:grid;gap:16px}.auth-form label{display:grid;gap:8px;font-size:12px;color:var(--muted)}input{border:1px solid #3b4860;background:#111824;color:var(--text);padding:13px;border-radius:9px;width:100%;min-width:0}input:focus{border-color:var(--lime)}.auth-links{display:flex;justify-content:space-between;gap:12px;margin-top:18px}.form-message{color:var(--lime);min-height:20px;font-size:12px;line-height:1.6}.form-message.error{color:var(--red)}.rank-table{border-collapse:collapse;width:100%;font-size:12px;margin-top:20px}.rank-table th{color:var(--muted);font-weight:400;text-align:left;font-size:10px}.rank-table td,.rank-table th{padding:12px 6px;border-bottom:1px solid var(--line)}.rank-table td:last-child,.rank-table th:last-child{text-align:right}.rank-table .me{color:var(--lime)}.scroll-table{overflow:auto}.result-symbol{font-size:40px;color:var(--lime);margin:4px 0 15px}.result-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:23px 0}.result-stats div{background:#111824;padding:13px 5px;text-align:center;border-radius:9px}.result-stats strong{display:block;font-size:22px}.result-stats small{font-size:10px;color:var(--muted)}.level-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin:20px 0}.level-grid button{background:#252f40;border:1px solid var(--line);border-radius:8px;height:40px}.level-grid .completed{color:var(--lime)}.level-grid .next{background:var(--lime);color:#142014}.account-page{max-width:440px;margin:10vh auto;padding:30px;border:1px solid var(--line);border-radius:18px;background:var(--card)}.account-page h1{font-size:32px;letter-spacing:-1px}.account-page p{color:var(--muted);line-height:1.6}.account-page .button{margin-top:15px;width:100%}
.progress-card .text-button{flex-shrink:0;min-width:83px;text-align:right}.progress-card>div{min-width:0}
@media(min-width:1500px){.layout{padding-top:65px}.intro{padding-top:20px}}
@media(max-width:1000px){.layout{grid-template-columns:1fr 430px;gap:35px;padding:40px 30px}h1{font-size:66px;letter-spacing:-4px}.topbar{padding:22px 30px}.lead{font-size:25px}.feature-row{gap:15px}}
@media(max-width:780px){.topbar{padding:17px 20px}nav{gap:8px}.nav-button{font-size:11px;padding:8px}.layout{grid-template-columns:1fr;max-width:570px;padding:25px 20px 35px;gap:25px}.back-link{margin-bottom:23px}.intro .eyebrow{font-size:8px}h1{font-size:64px;margin:13px 0;letter-spacing:-4px}.lead{font-size:22px}.lead br{display:none}.description{max-width:100%;font-size:13px}.feature-row{margin:20px 0;gap:26px}.how-card{display:none}.account-note{margin-bottom:0;max-width:100%}.game-column{width:100%}.game-card{border-radius:16px}.game-top{padding:13px 18px}.stats{padding:20px 19px 0}.stats strong{font-size:22px}.stats .hearts{font-size:15px;letter-spacing:0}.arena-overlay{padding-bottom:24px}.game-bottom{padding-left:20px;padding-right:20px}footer{padding:22px 20px;gap:12px;flex-wrap:wrap}footer a{width:100%;margin-left:0}dialog{padding:29px 23px}.account-page{margin:8vh 15px}.keyboard-hint{font-size:7px}.level-grid{grid-template-columns:repeat(5,1fr)}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
[hidden]{display:none!important}

.quiz-layout h1 span{color:#be9bff}.quiz-stage{padding:28px 25px;min-height:395px}.quiz-stage h2{font-size:28px;line-height:1.25;letter-spacing:-.6px;margin:18px 0 22px}.quiz-stage p{color:var(--muted);font-size:13px;line-height:1.7}.quiz-stage #welcomePanel,.quiz-stage #countdownPanel{text-align:center;padding:26px 8px}.quiz-options{display:grid;gap:12px}.quiz-options button{display:flex;align-items:center;text-align:left;gap:13px;width:100%;padding:15px;border:1px solid #3a475c;background:#202a3a;border-radius:12px;min-height:59px;font:500 14px system-ui;color:var(--text)}.quiz-options button span{display:grid;place-items:center;border:1px solid #52617a;border-radius:8px;width:28px;height:28px;flex-shrink:0;font-size:12px;color:#afbad0}.quiz-options button.correct{background:#203928;border-color:var(--lime)}.quiz-options button.correct span{color:var(--lime);border-color:var(--lime)}.quiz-options button.wrong{background:#422432;border-color:var(--red)}.quiz-options button:disabled{opacity:1;cursor:default}.quiz-options button:focus-visible{outline:2px solid #be9bff;outline-offset:3px}.quiz-time-track{height:4px;background:#303a4b;border-radius:3px;margin-bottom:23px;overflow:hidden}.quiz-time-track span{display:block;height:100%;background:var(--lime);width:100%}.quiz-feedback{min-height:28px;margin:15px 0 0}.quiz-countdown{font-size:39px;font-weight:700;color:var(--lime);letter-spacing:2px;font-variant-numeric:tabular-nums;margin:25px 0}.quiz-controls{display:grid;grid-template-columns:1fr 44px;gap:10px}.quiz-hint{font-size:11px!important}.stats strong{font-variant-numeric:tabular-nums}.quiz-stage .button{margin-top:12px}.quiz-stage #categoryLabel{font-size:9px}.quiz-stage .correct-text{color:var(--lime)}@media(max-width:780px){.quiz-stage{padding:22px 18px;min-height:360px}.quiz-stage h2{font-size:25px}.quiz-layout h1{font-size:60px}.quiz-countdown{font-size:32px}.quiz-stage #welcomePanel,.quiz-stage #countdownPanel{padding:18px 0}.quiz-options button{padding:12px}.quiz-layout .feature-row{gap:25px}}@media(max-width:350px){.quiz-countdown{font-size:27px}.quiz-layout{padding-left:14px;padding-right:14px}}

/* Acceso: registro por defecto, destacado y legible en móvil. */
.auth-tabs{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.auth-tabs button{min-height:48px;padding:12px 9px;font-weight:750;font-size:14px}
.auth-tabs #registerTab.active{background:#c0f779;color:#152313;border:1px solid #c0f779;box-shadow:0 6px 26px #c0f77945}
.auth-tabs #registerTab:not(.active){color:#c0f779;border-color:#68874b;background:#243324}
.auth-tabs #loginTab.active{color:#f3f5f1;background:#344154;border-color:#8497b0}
.register-intro{font-size:11px;font-weight:850;color:#c0f779!important;letter-spacing:.65px;margin:0 0 16px!important}
.auth-form .register-submit{background:#c0f779;color:#172411;font-weight:900;font-size:15px;letter-spacing:.35px;min-height:54px;box-shadow:0 6px 24px #c0f77927}