/* Infinite Concepts – Static Site Styles (HTML5) */
*{box-sizing:border-box}html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Helvetica Neue",Arial,"Noto Sans",sans-serif;color:#0f172a;line-height:1.6;background:#fff}
a{color:#0f172a;text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(1100px,92%);margin:0 auto}
.site-header{position:sticky;top:0;background:#fff;border-bottom:1px solid #e2e8f0;z-index:99}
.navbar{display:flex;align-items:center;justify-content:space-between;padding:16px 0}
.brand{font-weight:800;letter-spacing:.04em}
.brand a{font-size:1.1rem}
.menu{display:flex;gap:20px;list-style:none;margin:0;padding:0}
.menu a{padding:8px 6px;border-radius:8px}
.menu a.active{background:#0f172a;color:#fff}
.cta{background:#0f172a;color:#fff;padding:10px 14px;border-radius:999px}
.cta:hover{opacity:.9;text-decoration:none}
.hero{padding:clamp(48px,8vw,96px) 0;background:linear-gradient(180deg,#ffffff,#f8fafc)}
.hero h1{font-size:clamp(2rem,4.5vw,3.2rem);line-height:1.1;margin:0 0 12px}
.hero p{font-size:clamp(1rem,2.2vw,1.2rem);max-width:60ch;margin:0 0 24px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.section{padding:56px 0}
.section h2{font-size:clamp(1.6rem,3vw,2rem);margin:0 0 16px}
.lead{font-size:1.125rem;color:#334155;max-width:75ch}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:900px){.grid-3{grid-template-columns:1fr}}
.card{border:1px solid #e2e8f0;border-radius:16px;padding:22px;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.03)}
.card h3{margin-top:0}
.form{display:grid;gap:12px;max-width:640px}
input[type="text"],input[type="email"],textarea{width:100%;padding:12px 14px;border:1px solid #cbd5e1;border-radius:10px;font:inherit}
button[type="submit"]{border:none;background:#0f172a;color:#fff;padding:12px 16px;border-radius:10px;cursor:pointer}
button[type="submit"]:hover{opacity:.9}
.site-footer{padding:32px 0;border-top:1px solid #e2e8f0;background:#fff;color:#334155}
.site-footer small{color:#64748b}
.screen-reader-text{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.notice{margin:12px 0;padding:10px 14px;border:1px solid #e2e8f0;border-radius:10px;background:#f8fafc}