:root{--brand:#0ea5e9;--brand-dark:#005b96;--accent:#3bb273;--ink:#0f172a}
html,body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,"Helvetica Neue",Arial,"Noto Sans",sans-serif;color:var(--ink)}
.btn-brand{background:var(--brand);border:0}.btn-brand:hover{background:var(--brand-dark)}
.text-brand{color:var(--brand)}.bg-brand{background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%)}
.bg-soft{background:#f6fbff}.shadow-soft{box-shadow:0 10px 30px rgba(0,0,0,.08)}.rounded-2xl{border-radius:1.25rem}
.hero{position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:url('assets/trinetra-hero.jpg') center/cover no-repeat;filter:brightness(.45)}
.hero .hero-inner{position:relative;z-index:2}
.section{padding:80px 0}
.whatsapp-float{position:fixed;right:16px;bottom:16px;z-index:1030}
.whatsapp-float a{display:flex;align-items:center;gap:.5rem;padding:.75rem 1rem;background:#25D366;color:#fff;border-radius:999px;text-decoration:none;box-shadow:0 12px 25px rgba(0,0,0,.15)}
.footer-link{color:#e6f6ff;text-decoration:none}.footer-link:hover{color:#fff}