:root{color-scheme:dark;--bg:#080b18;--panel:#10152b;--panel2:#171d38;--line:#273453;--text:#eff2ff;--muted:#a9b3d1;--mint:#22f5c8;--gold:#ffd45b;--blue:#55d6ff;--spring:cubic-bezier(.2,.8,.2,1)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px}
body{margin:0;min-height:100vh;color:var(--text);background:radial-gradient(900px 480px at 90% -10%,#335db830,transparent 68%),radial-gradient(700px 500px at 0% 14%,#3d246033,transparent 70%),var(--bg);font:16px/1.55 "Space Grotesk",system-ui,sans-serif;overflow-x:hidden}
a{color:inherit}
.grade-shell{width:min(1180px,100% - 36px);margin-inline:auto}
.grade-topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 0}
.grade-brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font:800 14px/1.2 Orbitron,sans-serif;letter-spacing:.04em}
.grade-brand-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:15px;background:linear-gradient(145deg,#162c45,#25234c);box-shadow:inset 0 1px 0 #ffffff28,0 0 0 1px #6aeed533;color:var(--mint);font-size:21px}
.grade-brand small{display:block;margin-top:5px;color:var(--mint);font:600 9px "Space Grotesk",sans-serif;letter-spacing:.18em}
.back-grades{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:9px 15px;border:1px solid #7ae9d540;border-radius:999px;background:#10172bd9;color:#dcfff8;font-weight:700;text-decoration:none;transition:transform .28s var(--spring),background .28s var(--spring),border-color .28s var(--spring)}
.back-grades:hover{transform:translateY(-2px);background:#173239;border-color:#6aeed5}
.back-grades:focus-visible,.grade-switch a:focus-visible,.period-nav a:focus-visible,.game-actions a:focus-visible,.grade-access:focus-visible{outline:3px solid #fff;outline-offset:3px}
.grade-hero{position:relative;isolation:isolate;overflow:hidden;margin:12px 0 25px;padding:clamp(25px,5vw,54px);border:1px solid #66ecd83a;border-radius:30px;background:linear-gradient(120deg,#11182de8,#11172bed 58%,#201b40e8);box-shadow:inset 0 1px 0 #ffffff16,0 22px 70px #02040b66}
.grade-hero::after{position:absolute;z-index:-1;right:-80px;bottom:-190px;width:420px;aspect-ratio:1;border-radius:50%;background:radial-gradient(circle,#35ecca33,transparent 66%);content:"";pointer-events:none}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:12px;color:var(--mint);font-size:12px;font-weight:800;letter-spacing:.15em;text-transform:uppercase}
.grade-hero h1{margin:0;color:#f4f5ff;font:900 clamp(34px,6vw,64px)/1.08 Orbitron,"Space Grotesk",sans-serif;letter-spacing:-.035em}
.grade-hero h1 span{color:var(--mint)}
.grade-hero p{max-width:690px;margin:15px 0 0;color:#c5cce2;font-size:clamp(16px,2vw,19px)}
.grade-proof{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}
.grade-proof span{padding:7px 12px;border:1px solid #ffffff16;border-radius:999px;background:#080e20b8;color:#e5eaff;font-size:13px;font-weight:700}
.grade-game-launch{display:inline-flex;flex-direction:column;align-items:flex-start;gap:5px;margin-top:24px;padding:15px 23px;border:1px solid #b8fff1;border-radius:17px;background:linear-gradient(115deg,#25e6c0,#55d6ff);box-shadow:0 10px 30px #24dfc333;color:#061321;font:900 17px Orbitron,"Space Grotesk",sans-serif;text-decoration:none;transition:transform .24s var(--spring),box-shadow .24s var(--spring)}
.grade-game-launch:hover{transform:translateY(-3px);box-shadow:0 15px 38px #24dfc355}.grade-game-launch:focus-visible{outline:3px solid #fff;outline-offset:4px}.grade-game-launch small{font:700 12px "Space Grotesk",sans-serif;opacity:.82}
.grade-levels{margin:28px 0 58px}.grade-levels-intro{margin-bottom:17px}.grade-levels-intro h2{margin:0;font:800 clamp(23px,3vw,32px)/1.2 Orbitron,"Space Grotesk",sans-serif}.grade-levels-intro>p{max-width:720px;margin:8px 0 0;color:var(--muted)}
.level-preview-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.level-preview{position:relative;overflow:hidden;padding:clamp(17px,2vw,23px);border:1px solid color-mix(in srgb,var(--grade) 38%,#273453);border-radius:21px;background:linear-gradient(150deg,#151a34,#0d1124);box-shadow:inset 0 1px 0 #ffffff12}.level-preview::after{position:absolute;right:-45px;top:-70px;width:170px;height:170px;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--grade) 19%,transparent),transparent 70%);content:"";pointer-events:none}.level-preview-head{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:12px}.level-index{color:var(--mint);font-size:11px;font-weight:900;letter-spacing:.12em}.level-checkpoints{padding:5px 9px;border:1px solid #ffffff1a;border-radius:999px;background:#080e20;color:#dce4ff;font-size:11px;font-weight:800}.level-preview h2{position:relative;z-index:1;margin:13px 0 12px;font:800 clamp(17px,2vw,22px)/1.25 Orbitron,"Space Grotesk",sans-serif}.level-topic-list{position:relative;z-index:1;display:grid;gap:8px;list-style:none;margin:0;padding:0}.level-topic-list li{display:grid;grid-template-columns:32px minmax(0,1fr);gap:9px;align-items:start;padding:8px 10px;border:1px solid #ffffff12;border-radius:12px;background:#080e206c}.level-topic-list li>span:first-child{display:grid;place-items:center;width:30px;height:30px;border-radius:10px;background:#ffffff0c;font-size:18px}.level-topic-list b{display:block;color:#eff2ff;font-size:13px;line-height:1.3}.level-topic-list small{display:block;margin-top:2px;color:var(--muted);font-size:11px;line-height:1.35}.level-inside-game{position:relative;z-index:1;margin:12px 0 0;color:#9fb7d8;font-size:11px;font-weight:700}
.grade-switch{display:flex;gap:7px;flex-wrap:wrap;align-items:center;justify-content:flex-end}
.grade-switch-group{margin-left:5px;color:var(--muted);font-size:10px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.grade-switch a{display:grid;place-items:center;min-width:42px;min-height:42px;padding:0 10px;border:1px solid #ffffff19;border-radius:14px;background:#11162a;color:#c5cce2;font-weight:800;text-decoration:none;transition:transform .25s var(--spring),background .25s var(--spring),color .25s var(--spring)}
.grade-switch a:hover{transform:translateY(-2px);color:#fff;background:#1b2541}
.grade-switch a[aria-current=page]{border-color:var(--grade);background:color-mix(in srgb,var(--grade) 16%,#11162a);color:#fff;box-shadow:inset 0 1px 0 #ffffff24,0 0 22px color-mix(in srgb,var(--grade) 15%,transparent)}
.period-nav{display:flex;gap:9px;flex-wrap:wrap;margin:22px 0 34px}
.period-nav a{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:9px 15px;border:1px solid #ffffff17;border-radius:999px;background:#11162a;color:#dce4ff;font-weight:800;text-decoration:none;transition:transform .25s var(--spring),border-color .25s var(--spring),background .25s var(--spring)}
.period-nav a:hover{transform:translateY(-2px);border-color:#64e9d5;background:#17263a}
.period-nav b{color:var(--mint);font:700 11px Orbitron,sans-serif}
.period-section{margin:0 0 30px;scroll-margin-top:18px}
.period-games{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,430px),1fr));gap:14px}
.period-games.single-period{grid-template-columns:1fr}
.period-heading{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:0 0 14px;padding:0 2px}
.period-heading h2{margin:0;font:800 clamp(20px,3vw,29px)/1.15 Orbitron,"Space Grotesk",sans-serif;letter-spacing:-.02em}
.period-heading h2 span{display:block;margin-bottom:7px;color:var(--mint);font:700 11px "Space Grotesk",sans-serif;letter-spacing:.16em}
.period-heading p{margin:0;color:var(--muted);font-size:13px;text-align:right}
.game-card{display:grid;grid-template-columns:minmax(220px,.9fr) minmax(0,1.1fr);overflow:hidden;border:1px solid color-mix(in srgb,var(--grade) 38%,#273453);border-radius:24px;background:linear-gradient(145deg,#151a34,#0d1124);box-shadow:inset 0 1px 0 #ffffff16,0 15px 45px #0003}
.grade-shell[data-level="secundaria"] .game-card,.grade-shell[data-level="media"] .game-card{grid-template-columns:1fr}
.grade-shell[data-level="secundaria"] .game-cover,.grade-shell[data-level="media"] .game-cover{height:auto;min-height:0;aspect-ratio:16/8}
.grade-shell[data-level="secundaria"] .game-cover img,.grade-shell[data-level="media"] .game-cover img{height:100%;min-height:0}
.grade-shell[data-level="secundaria"] .game-info,.grade-shell[data-level="media"] .game-info{justify-content:flex-start;padding:17px}
.grade-shell[data-level="secundaria"] .game-info h3,.grade-shell[data-level="media"] .game-info h3{font-size:clamp(17px,2vw,22px)}
.grade-shell[data-level="secundaria"] .game-copy,.grade-shell[data-level="media"] .game-copy{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:4;overflow:hidden;font-size:13px}
.grade-note{margin:13px 0 0!important;color:#9eb0d4!important;font-size:12px!important}
.game-cover{position:relative;min-height:280px;overflow:hidden;background:linear-gradient(145deg,#1d2940,#292150)}
.game-cover img{display:block;width:100%;height:100%;min-height:280px;object-fit:cover;transition:transform .7s var(--spring)}
.game-card:hover .game-cover img{transform:scale(1.035)}
.cover-label{position:absolute;left:14px;top:14px;padding:7px 11px;border:1px solid #ffffff26;border-radius:999px;background:#080d1dcc;color:#fff;font-size:12px;font-weight:800;backdrop-filter:blur(8px)}
.game-info{display:flex;flex-direction:column;justify-content:center;padding:clamp(20px,4vw,34px)}
.guide-chip{display:flex;align-items:center;gap:10px;margin-bottom:12px;color:#c8d2ea;font-size:13px}
.guide-chip img{width:42px;height:42px;border:1px solid color-mix(in srgb,var(--grade) 65%,transparent);border-radius:50%;object-fit:cover;background:#0d1427}
.guide-chip b{display:block;color:#fff}
.game-info h3{margin:0;font:800 clamp(22px,3.1vw,32px)/1.15 Orbitron,"Space Grotesk",sans-serif;letter-spacing:-.02em}
.game-topic{margin:9px 0 0;color:#dbe4ff;font-size:16px;font-weight:800}
.game-copy{margin:12px 0 0;color:var(--muted);font-size:14px}
.game-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:15px}
.game-meta span{padding:5px 9px;border:1px solid #ffffff18;border-radius:8px;background:#090e1d;color:#cad6ee;font-size:11px;font-weight:800}
.game-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:19px}
.game-actions a{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:44px;padding:10px 14px;border:1px solid #ffffff20;border-radius:13px;background:#10182d;color:#eff7ff;font-size:13px;font-weight:800;text-decoration:none;transition:transform .27s var(--spring),background .27s var(--spring),border-color .27s var(--spring)}
.game-actions a:hover{transform:translateY(-2px);border-color:#79e9d6;background:#17263b}
.game-actions a.primary{border-color:transparent;background:linear-gradient(115deg,var(--grade),#70dcff);color:#08111e;box-shadow:0 8px 24px color-mix(in srgb,var(--grade) 18%,transparent)}
.integrated-games{margin:55px 0 70px;padding:clamp(22px,4vw,36px);border:1px solid #ffffff17;border-radius:26px;background:linear-gradient(130deg,#151a34e8,#0e1529e8);box-shadow:inset 0 1px 0 #ffffff14}
.integrated-games h2{margin:0;font:800 clamp(21px,3vw,29px)/1.2 Orbitron,"Space Grotesk",sans-serif}
.integrated-games>p{max-width:680px;margin:8px 0 20px;color:var(--muted)}
.integrated-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,270px),1fr));gap:14px}
.integrated-card{display:grid;grid-template-columns:78px minmax(0,1fr);gap:14px;align-items:center;padding:13px;border:1px solid #ffffff13;border-radius:19px;background:#0b1123;transition:transform .3s var(--spring),border-color .3s var(--spring),background .3s var(--spring)}
.integrated-card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--grade) 55%,transparent);background:#111a31}
.integrated-card img{width:78px;height:78px;object-fit:contain;border-radius:15px;background:radial-gradient(circle,#26334d,#10162b)}
.integrated-card h3{margin:0;font-size:16px;line-height:1.25}
.integrated-card p{margin:5px 0 8px;color:var(--muted);font-size:12px;line-height:1.4}
.integrated-card a{color:var(--mint);font-size:13px;font-weight:800;text-decoration:none}
.grade-footer{padding:20px 0 40px;color:var(--muted);font-size:13px;text-align:center}
.grade-footer a{color:var(--mint)}
.empty-grade{padding:24px;border:1px dashed #ffffff35;border-radius:20px;color:var(--muted)}
@media(max-width:760px){.grade-shell{width:min(100% - 28px,680px)}.grade-topbar{align-items:flex-start;flex-wrap:wrap}.grade-switch{width:100%;justify-content:flex-start;gap:6px}.grade-switch-group{width:auto;margin-left:5px}.game-card{grid-template-columns:1fr}.game-cover,.game-cover img{height:auto;min-height:0;aspect-ratio:16/8}.period-heading{align-items:flex-start;flex-direction:column}.period-heading p{text-align:left}.level-preview-list{grid-template-columns:1fr}.integrated-games{margin-top:40px}}
@media(max-width:430px){.grade-shell{width:calc(100% - 22px)}.grade-topbar{padding:14px 0}.grade-brand{font-size:12px}.back-grades{min-height:42px;padding:8px 12px;font-size:13px}.grade-hero{border-radius:22px;padding:23px 19px}.grade-proof{gap:7px}.grade-proof span{font-size:11px}.grade-game-launch{width:100%;align-items:center;text-align:center}.level-preview{padding:16px;border-radius:18px}.level-preview-head{align-items:flex-start;flex-direction:column;gap:6px}.level-topic-list li{padding:8px}.game-cover,.game-cover img{aspect-ratio:16/9}.game-info{padding:20px 17px}.game-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.game-actions a{min-width:0;padding:10px 7px;text-align:center}.integrated-card{grid-template-columns:64px minmax(0,1fr)}.integrated-card img{width:64px;height:64px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}

.motolab-period-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;margin-top:18px}.motolab-period-links a{display:flex;align-items:center;min-height:64px;padding:14px 16px;border:1px solid #ffb55a;border-radius:15px;background:linear-gradient(135deg,#553018,#241d32);color:#fff0d9;text-decoration:none;font-weight:700}.motolab-period-links a:hover,.motolab-period-links a:focus-visible{background:#78401e;outline:2px solid #ffe09c;outline-offset:2px}
.grade-period-games{margin:55px 0}.grade-period-games>.grade-levels-intro{margin-bottom:30px}.period-heading h3{margin:0;font:800 clamp(19px,2.6vw,27px)/1.2 Orbitron,"Space Grotesk",sans-serif}.period-heading h3 span{display:block;margin-bottom:7px;color:var(--mint);font:700 11px "Space Grotesk",sans-serif;letter-spacing:.16em}.more-arcades{margin-top:14px}.more-arcades summary{width:fit-content;padding:8px 0;color:#82efdb;cursor:pointer;font-size:13px;font-weight:800}.more-arcades summary:focus-visible{outline:2px solid #fff;outline-offset:4px}.more-arcades .game-actions{margin-top:8px}
.original-adventures-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;margin-top:18px}.original-adventure-link{display:flex;flex-direction:column;gap:7px;padding:17px;border:1px solid #60f5d275;border-radius:17px;background:linear-gradient(140deg,#173949,#141b35);text-decoration:none;color:#f4fbff;transition:transform .18s,border-color .18s}.original-adventure-link:hover{transform:translateY(-3px);border-color:#8ffff0}.original-adventure-link:focus-visible{outline:3px solid #fff;outline-offset:3px}.original-adventure-link span{font-size:11px;font-weight:900;color:#55f3c7;letter-spacing:.06em}.original-adventure-link b{font-size:16px}.original-adventure-link small{color:#c4d8eb;line-height:1.35}

.original-adventure-cover{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;margin-bottom:4px;background:radial-gradient(circle,#26334d,#10162b)}
.motolab-period-links a.moto-card{flex-direction:column;align-items:stretch;gap:8px}.moto-cover{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px}

.grade-hero-first{min-height:350px;padding-right:46%}
.grade-campaign-name{margin-top:12px;color:#ffe596;font:800 clamp(16px,2vw,21px)/1.25 "Space Grotesk",sans-serif}
.grade-campaign-cover{position:absolute;top:24px;right:24px;bottom:24px;width:38%;overflow:hidden;border:1px solid #a6f9df70;border-radius:22px;background:#172b35;box-shadow:0 18px 38px #0007}
.grade-campaign-cover img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.grade-campaign-cover:hover img{transform:scale(1.035)}
.grade-campaign-cover:focus-visible{outline:3px solid #fff;outline-offset:4px}
@media(max-width:850px){.grade-hero-first{min-height:0;padding-right:clamp(25px,5vw,54px)}.grade-campaign-cover{position:relative;inset:auto;display:block;width:100%;height:auto;aspect-ratio:16/9;margin-top:25px}.grade-campaign-cover img{position:absolute;inset:0}}
@media(max-width:430px){.grade-hero-first{padding:23px 19px}.grade-campaign-cover{border-radius:16px;margin-top:20px}}
@media(prefers-reduced-motion:reduce){.grade-campaign-cover img{transition:none}}