:root{--bg: #050608;--surface: #0d1117;--surface-elevated: #121822;--text: #e8f3f7;--muted: #9db4be;--primary: #59c9ea;--primary-hover: #79d8f1;--border: #1f3340;--shadow-soft: 0 14px 28px rgba(0, 0, 0, .42)}*{box-sizing:border-box}html,body{margin:0;padding:0;font-family:Inter,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:radial-gradient(circle at top right,#0a1622 0%,var(--bg) 48%)}a{color:inherit;text-decoration:none}.container{width:min(1120px,100% - 2rem);margin-inline:auto}.surface-card{background:var(--surface);border:1px solid var(--border);border-radius:1rem;box-shadow:var(--shadow-soft)}.section{padding-block:2.5rem}.section-title{margin:0;font-size:clamp(1.4rem,1.1rem + 1.1vw,2.1rem);letter-spacing:-.02em}.section-subtitle{margin-top:.7rem;color:var(--muted);max-width:62ch}.button-primary{display:inline-flex;align-items:center;justify-content:center;border:1px solid color-mix(in srgb,var(--primary) 55%,#ffffff 0%);border-radius:.75rem;background:var(--primary);color:#061218;padding:.8rem 1.2rem;font-weight:600;cursor:pointer;transition:background .2s ease}.button-primary:hover{background:var(--primary-hover)}input,textarea,select{background:var(--surface-elevated);color:var(--text);border:1px solid var(--border)}.grid-auto{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}@media(max-width:640px){.section{padding-block:2rem}}