:root{--bg:#fff;--alt:#f3f6fa;--ink:#16202e;--mut:#556070;--line:#d9e0ea;--blue:#1a5ca8;--green:#3f8a00;--navy:#0f1b2d}
[data-theme=dark]{--bg:#0e141c;--alt:#151d28;--ink:#e6ebf2;--mut:#9aa7b8;--line:#263243;--blue:#6aaeff;--green:#8fdc3c}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{font:1.0625rem/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink)}
img{max-width:100%;height:auto;border-radius:8px}
a{color:var(--blue)}
:focus-visible{outline:3px solid var(--green);outline-offset:2px}
.skip{position:absolute;left:-999px;background:var(--navy);color:#fff;padding:.7rem}.skip:focus{left:0;z-index:9}
.wrap{max-width:1120px;margin:auto;padding:0 20px}.narrow{max-width:640px}
.top{position:sticky;top:0;z-index:5;background:var(--bg);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:1.5rem;padding-top:.6rem;padding-bottom:.6rem}
.bar nav{margin-left:auto;display:flex;gap:1.2rem;flex-wrap:wrap}
.bar nav a{color:var(--ink);text-decoration:none;font-weight:600;font-size:.95rem}
.bar nav a:hover{color:var(--blue)}
#theme{background:none;border:1px solid var(--line);color:var(--ink);border-radius:8px;width:38px;height:38px;font-size:1.1rem;cursor:pointer}
.hero{background:var(--navy);color:#eaf1fb;padding:5rem 0}
.hero h1{font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.08;letter-spacing:-.02em;margin-bottom:1.2rem}
.lead{font-size:1.2rem;color:#b9c7da;max-width:34em;margin-bottom:1.8rem}
.split{display:grid;gap:3rem;align-items:center}
@media(min-width:860px){.split{grid-template-columns:1.1fr .9fr}}
.btn{display:inline-block;background:#64ca02;color:#0f1b2d;font:700 1rem inherit;font-family:inherit;padding:.8rem 1.5rem;border:2px solid #64ca02;border-radius:8px;text-decoration:none;cursor:pointer;margin:0 .4rem .6rem 0}
.btn:hover{background:#7ddc1b}
.btn.ghost{background:transparent;color:inherit;border-color:currentColor}
.hero .btn.ghost{color:#eaf1fb}.sec .btn.ghost{color:var(--blue)}
.panel{background:#16263d;border:1px solid #2b4263;border-radius:12px;padding:1rem;box-shadow:0 20px 50px #0006}
.dots{display:flex;align-items:center;gap:6px;padding-bottom:.8rem;border-bottom:1px solid #2b4263}
.dots i{width:11px;height:11px;border-radius:50%;background:#3b567c}.dots b{margin-left:auto;font-size:.8rem;color:#9db3d1}
.panel ul{list-style:none;padding:0;margin-top:1rem;display:grid;grid-template-columns:1fr 1fr;gap:.7rem}
.panel li{background:#1f3556;border-left:4px solid #64ca02;padding:.9rem;border-radius:6px;font-weight:600;font-size:.95rem}
.sec{padding:4.5rem 0}.alt{background:var(--alt)}
h2{font-size:clamp(1.7rem,3vw,2.3rem);line-height:1.2;margin-bottom:1.5rem}
.grid{display:grid;gap:2rem 2.5rem;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid div{border-top:3px solid var(--blue);padding-top:1rem}
h3{font-size:1.15rem;margin-bottom:.3rem}.grid p{color:var(--mut)}
.ticks{list-style:none;padding:0}
.ticks li{padding:.45rem 0 .45rem 1.8rem;position:relative;border-bottom:1px solid var(--line)}
.ticks li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:800}
.dark{background:var(--navy);color:#eaf1fb}.dark p{color:#b9c7da;margin-bottom:1.4rem}
form{display:grid}
label{font-weight:600;margin-top:1rem}
input,textarea{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:.7rem .9rem;width:100%}
form p{margin-top:1.2rem}#fm{color:var(--blue);font-weight:600}
.foot{background:var(--navy);color:#b9c7da;padding:2rem 0;font-size:.95rem}.foot a{color:#fff}
@media(max-width:700px){.bar nav{display:none}.bar{justify-content:space-between}}