/* BER SEO station guide: static, lightweight and mobile-first */
:root{color-scheme:dark}*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(ellipse at 50% -15%,#163a4c,#081724 38%,#040a12 85%);color:#e5f1f6;font:16px/1.65 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{color:#77e5f3}a:hover{text-decoration:underline}a:focus-visible{outline:3px solid #77e5f3;outline-offset:4px}
.wrap{width:min(960px,calc(100% - 32px));margin:0 auto}
header{border-bottom:1px solid #164858;background:#07131ea8}
header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:15px 0}
.brand{font-size:18px;color:#a8f5fb;font-weight:800;text-decoration:none;letter-spacing:.02em}
.topnav{display:flex;gap:14px;flex-wrap:wrap;font-size:14px}
.breadcrumb{margin:24px 0 10px;font-size:13px;color:#a6c1ce}.breadcrumb a{color:#9dc6d2}
.hero{padding:24px 0 18px}h1{font-size:clamp(28px,4.1vw,44px);line-height:1.15;letter-spacing:-.025em;margin:8px 0 16px}
.kicker{font-size:12px;font-weight:800;color:#7bdfeb;text-transform:uppercase;letter-spacing:.13em}
.lead{color:#bcd2db;font-size:18px;max-width:760px;margin:0 0 18px}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}
.actions a{border-radius:12px;text-decoration:none;padding:12px 17px;font-weight:750;font-size:15px}
.primary{background:#65d4e4;color:#03141e!important}.ghost{border:1px solid #3a7686;background:#0a2433}
.disclaimer{font-size:13px;color:#9ab8c3;line-height:1.65;border-left:3px solid #2b899d;padding:8px 14px;margin:19px 0 26px;background:#0b253227}
section.card,nav.card{border:1px solid #244c5a;border-radius:17px;padding:20px 22px;margin:15px 0;background:#0b1b2bbd;box-shadow:0 5px 20px #0002}
h2{color:#d8fbff;font-size:22px;line-height:1.26;margin:0 0 10px}
h3{color:#daf5fb;font-size:18px;margin:0 0 6px}
p{margin:8px 0 14px}main{padding-bottom:30px}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.cards a{display:block;border:1px solid #295464;border-radius:13px;background:#0b2838;padding:15px;text-decoration:none;transition:border-color .1s}
.cards a:hover{border-color:#74dbec}
.cards a strong{display:block;color:#ecfdff;font-size:17px}.cards a small{display:block;color:#b4d1d9;font-size:13px}
.stationlist{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0}
.stationlist a{display:inline-block;padding:6px 11px;background:#123141;border:1px solid #265566;border-radius:10px;text-decoration:none}
details{margin:13px 0;border:1px solid #234858;border-radius:12px;padding:11px 14px}
summary{cursor:pointer;font-weight:700}
footer{border-top:1px solid #1b4656;color:#9cb9c4;font-size:13px;padding:20px 0 32px}
footer a{color:#b7e4ed}
@media(max-width:620px){.cards{grid-template-columns:1fr}.topnav{gap:10px}.lead{font-size:16px}section.card,nav.card{padding:17px}.actions a{width:100%;text-align:center}}