:root {color-scheme:light;--ink:#112f45;--accent:#256d91;--bg:#f1f6f8}
*{box-sizing:border-box} html {scroll-behavior:smooth} body.home{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 -apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif;min-height:100dvh;overflow-x:clip}
a{color:inherit}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible{outline:3px solid #55acd5;outline-offset:3px}
.home-top{max-width:1290px;padding:22px 30px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:20px}
.identity{display:flex;align-items:center;gap:14px}.identity img{border-radius:14px;box-shadow:0 5px 18px #12354a1d}
.identity strong{display:block;font-size:15px;letter-spacing:.16em;line-height:1.4}.identity small{display:block;letter-spacing:.08em;font-size:11px;color:#667e8c;font-weight:650}
.edition{color:#476a7d;font-size:11px;font-weight:850;letter-spacing:.1em;border:1px solid #cedeeb;border-radius:40px;padding:7px 12px}
.home-main{max-width:1290px;margin:0 auto;padding:19px 30px 50px}.intro{border-radius:24px;background:linear-gradient(117deg,#102e49 0%,#1d6078 72%,#2e796d 100%);color:#fff;padding:47px 51px;box-shadow:0 14px 40px rgba(18,57,79,.12)}
.kicker{font-size:12px;letter-spacing:.20em;color:#afe7e3;font-weight:900}.intro h1{font-size:clamp(34px,5.3vw,65px);line-height:1.08;letter-spacing:-.05em;margin:13px 0 14px}
.intro h1 em{font-style:normal;color:#a9e1da}.intro p{max-width:720px;color:#e5f5f8;font-size:16px;margin:0}
.home-actions{display:flex;align-items:center;flex-wrap:wrap;gap:11px;margin:27px 0 12px}.home-actions button{border-radius:10px;padding:10px 18px;min-height:45px;font-weight:780;border:1px solid #cde6ec}
.install-button{background:#fff;color:#145477}.quiet-button{background:#ffffff16;color:#fff}.home-actions button:hover{filter:brightness(.95)}
.status{font-size:13px;color:#d0e8ed;min-height:24px}
.choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:21px;margin:24px 0}
.course{display:flex;flex-direction:column;min-width:0;padding:30px 30px 22px;border-radius:18px;text-decoration:none;background:white;border:1px solid #d8e6ed;box-shadow:0 7px 22px rgba(31,62,80,.045);transition:transform .17s,border-color .17s}
.course:hover{transform:translateY(-3px);border-color:#7dadc6}.course-top{display:flex;justify-content:space-between;align-items:center;gap:10px;font-weight:850;font-size:12px;letter-spacing:.11em;color:#487189}.tag{font-size:10px;letter-spacing:.04em;color:#226c58;background:#e6f4ec;padding:7px 10px;border-radius:30px}
.course-3 .tag{color:#226385;background:#e6f1fa}.line-art{height:150px;margin:15px -3px 8px;border-radius:12px;background:linear-gradient(109deg,#e8f6f5,#d9eef2);overflow:hidden;display:flex;align-items:center;justify-content:center}
.course-3 .line-art{background:linear-gradient(109deg,#153d60,#267788)}.line-art svg{width:100%;height:100%}
.course h2{font-size:27px;line-height:1.2;letter-spacing:-.03em;margin:8px 0 7px}.course p{font-size:15px;color:#566e7b;margin:0;flex:1}
.course-bottom{border-top:1px solid #e0e8ed;margin-top:24px;padding-top:17px;display:flex;justify-content:space-between;gap:12px;align-items:center;flex-wrap:wrap;font-size:12px;color:#5a7282}
.course-bottom strong{color:#195c83;font-size:12px;letter-spacing:.04em;white-space:nowrap}
.how{background:#fff;border:1px solid #d7e7ed;border-radius:16px;margin:18px 0 0;padding:28px}.how h2{font-size:23px;margin:0 0 17px}.how-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.how-grid h3{font-size:15px;margin:0 0 5px}.how-grid p{color:#526c7d;font-size:14px;margin:0}
.home-footer{max-width:1290px;margin:0 auto;padding:10px 30px 34px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#678091;font-size:12px}
@media(max-width:850px){.choice-grid{grid-template-columns:minmax(0,1fr)}.how-grid{grid-template-columns:1fr}.intro{padding:35px 31px}}
@media(max-width:600px){.home-top,.home-main,.home-footer{padding-left:14px;padding-right:14px}.home-top{padding-top:14px}.edition{display:none}.intro{padding:33px 22px;border-radius:17px}.course{padding:23px 20px}.intro h1{font-size:38px}.course-bottom{display:block}.course-bottom strong{display:block;margin-top:12px}.line-art{height:115px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}