*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Tahoma,"Segoe UI",Arial,sans-serif;background:#f5f8ff;color:#172033;line-height:1.6}
a{text-decoration:none;color:inherit}
.site-header{height:76px;background:rgba(255,255,255,.94);border-bottom:1px solid #e4eaf3;position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);box-shadow:0 5px 25px rgba(23,32,51,.06)}
.header-inner{max-width:1240px;height:100%;margin:auto;padding:0 22px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;color:#173b74}
.brand-icon{width:43px;height:43px;border-radius:13px;display:flex;align-items:center;justify-content:center;background:#eaf2ff;font-size:25px}
.brand b{display:block;font-size:17px;line-height:1.2}.brand small{display:block;color:#8490a3;font-size:10px;margin-top:2px}
.main-nav{display:flex;gap:5px}.main-nav a{padding:9px 14px;border-radius:10px;font-size:14px;color:#5d687a;font-weight:700}.main-nav a:hover,.main-nav .active{background:#eef5ff;color:#2463d7}
.header-play{background:linear-gradient(135deg,#2563eb,#0ea5e9);color:#fff;padding:11px 17px;border-radius:12px;font-size:14px;font-weight:800;box-shadow:0 7px 18px rgba(37,99,235,.18)}
.hero{max-width:1240px;min-height:510px;margin:25px auto 0;border:1px solid #dce7f7;border-radius:30px;overflow:hidden;position:relative;background:linear-gradient(115deg,#fafdff,#edf6ff);display:grid;grid-template-columns:1fr 1.15fr;align-items:center;box-shadow:0 20px 55px rgba(37,99,235,.08)}
.hero-content{padding:55px 55px 55px 35px;position:relative;z-index:3}
.eyebrow{display:inline-flex;background:#e8f2ff;color:#2161cf;border:1px solid #d3e4ff;padding:7px 13px;border-radius:30px;font-size:13px;font-weight:800}
.hero h1{font-size:52px;line-height:1.15;margin:18px 0 12px;color:#153b77;letter-spacing:-1px}
.hero p{font-size:18px;color:#607087;max-width:590px;margin:0 0 25px}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap}
.primary-btn,.secondary-btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 22px;border-radius:13px;font-weight:900;font-size:15px;transition:.2s}
.primary-btn{background:linear-gradient(135deg,#2563eb,#0ea5e9);color:#fff;box-shadow:0 9px 23px rgba(37,99,235,.2)}
.secondary-btn{background:#fff;border:1px solid #dbe3ef;color:#28466f}
.primary-btn:hover,.secondary-btn:hover{transform:translateY(-2px)}
.hero-points{display:flex;gap:18px;flex-wrap:wrap;color:#6b778a;font-size:12px;margin-top:20px}
.hero-art{height:100%;min-height:510px;position:relative;overflow:hidden;background:linear-gradient(#e9f5ff 0 62%,#dff2df 62% 100%)}
.hero-art:after{content:"";position:absolute;bottom:-75px;right:-10%;width:125%;height:180px;background:#bfe1b5;border-radius:50% 50% 0 0}
.sun{position:absolute;right:70px;top:45px;font-size:66px;filter:drop-shadow(0 6px 8px #0001)}
.cloud{position:absolute;font-size:48px;opacity:.8}.c1{left:55px;top:80px}.c2{left:220px;top:145px}
.cactus{position:absolute;right:45px;bottom:85px;font-size:150px;z-index:3;filter:drop-shadow(0 8px 7px #0002)}
.mouse-character{position:absolute;left:45%;bottom:80px;font-size:110px;z-index:5;animation:float 3s ease-in-out infinite;filter:drop-shadow(0 12px 8px #0002)}
.mountain{position:absolute;bottom:135px;width:0;height:0;border-left:180px solid transparent;border-right:180px solid transparent;border-bottom:190px solid #b7d6e9;z-index:1}.m1{left:0}.m2{left:210px;border-left-width:150px;border-right-width:150px;border-bottom-color:#c8e1ed;bottom:130px}
.hero-decoration{position:absolute;color:#80aef4;font-size:25px;z-index:2}.d1{left:40px;top:30px}.d2{right:50%;bottom:25px}
.skills,.levels-section{max-width:1180px;margin:auto;padding:60px 20px 20px}
.section-heading{text-align:center;margin-bottom:28px}.section-heading>span{color:#2463d7;font-size:13px;font-weight:900}.section-heading h2{font-size:34px;color:#183d75;margin:7px 0}.section-heading p{margin:0;color:#778397}
.skill-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.skill-grid article{background:#fff;border:1px solid #e2e8f1;border-radius:19px;padding:22px;box-shadow:0 8px 25px rgba(23,32,51,.06);transition:.2s}
.skill-grid article:hover{transform:translateY(-4px);box-shadow:0 15px 30px rgba(23,32,51,.09)}
.skill-icon{width:58px;height:58px;border-radius:17px;display:flex;align-items:center;justify-content:center;font-size:30px;margin-bottom:14px}.blue{background:#e7f0ff}.green{background:#e7f9ee}.orange{background:#fff1df}.purple{background:#f0eaff}
.skill-grid h3{margin:0 0 5px}.skill-grid p{font-size:13px;color:#778397;margin:0 0 15px}.skill-bar{height:5px;background:#edf1f6;border-radius:20px;overflow:hidden}.skill-bar i{display:block;height:100%;background:#3b82f6;border-radius:20px}
.levels-section{padding-top:55px}.level-road{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
.level-card{background:#fff;border:1px solid #e0e7f0;border-radius:18px;padding:17px;display:flex;align-items:center;gap:15px;box-shadow:0 7px 22px rgba(23,32,51,.05);transition:.2s}
.level-card:hover{transform:translateY(-3px);border-color:#b6cdf2;box-shadow:0 14px 30px rgba(23,32,51,.09)}
.level-badge{width:52px;height:52px;flex:0 0 52px;border-radius:16px;background:linear-gradient(135deg,#2563eb,#0ea5e9);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:900}
.level-body{flex:1;min-width:0}.difficulty{font-size:10px;color:#5280c9;background:#eef5ff;padding:4px 8px;border-radius:20px}.level-body h3{font-size:17px;margin:7px 0 3px}.level-body p{font-size:12px;color:#778397;margin:0}.level-arrow{font-size:22px;color:#2a69d5}
.cta{max-width:1180px;margin:55px auto;padding:28px 35px;border-radius:22px;background:linear-gradient(110deg,#173d78,#2563eb);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:25px;box-shadow:0 16px 40px rgba(37,99,235,.18)}.cta span{font-size:12px;opacity:.8}.cta h2{margin:5px 0;font-size:25px}.cta p{margin:0;opacity:.78;font-size:13px}.cta .primary-btn{background:#fff;color:#1f56b2;box-shadow:none}
footer{background:#fff;border-top:1px solid #e3e8f0;margin-top:30px}.footer-inner{max-width:1180px;margin:auto;padding:24px 20px;display:flex;justify-content:space-between;gap:15px;color:#7a8597;font-size:12px}.footer-inner strong{color:#29466f}
@keyframes float{50%{transform:translateY(-10px)}}
@media(max-width:900px){.hero{grid-template-columns:1fr;margin:15px}.hero-art{min-height:300px;order:2}.hero-content{padding:38px 28px}.hero h1{font-size:39px}.skill-grid{grid-template-columns:repeat(2,1fr)}.level-road{grid-template-columns:1fr}.cta{margin:40px 15px}.main-nav{display:none}}
@media(max-width:550px){.site-header{height:auto}.header-inner{padding:10px 12px}.header-play{display:none}.brand b{font-size:15px}.hero{border-radius:20px}.hero-art{min-height:260px}.mouse-character{font-size:75px;left:42%;bottom:45px}.cactus{font-size:95px;bottom:45px;right:15px}.sun{font-size:45px;right:25px}.cloud{font-size:32px}.hero-content{padding:30px 20px}.hero h1{font-size:32px}.hero p{font-size:15px}.hero-points{gap:8px}.skill-grid{grid-template-columns:1fr}.skills,.levels-section{padding:45px 14px 15px}.section-heading h2{font-size:28px}.cta{padding:25px 20px;flex-direction:column;align-items:flex-start}.footer-inner{flex-direction:column}}