:root{
  --bg:linear-gradient(180deg,#f7fbff 0%,#ffffff 60%,#f6f9ff 100%);
  --card:#ffffff;
  --muted:#5b6b80;
  --text:#0f172a;
  --brand:#0ea5e9;
  --brand-2:#22d3ee;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.6}
h1,h2,h3{font-family:'Exo 2',Inter,Arial,sans-serif;letter-spacing:.2px}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.sr-only{position:absolute;left:-9999px}
.container{width:min(1120px,92%);margin-inline:auto}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid #e1e8f6}
.nav{display:flex;align-items:center;justify-content:space-between;padding:12px 0}
.logo{display:flex;align-items:center;gap:10px}
.menu{display:flex;gap:14px;align-items:center}
.menu a{padding:10px 12px;border-radius:12px}
.hamburger{display:none;background:none;border:0;padding:8px;cursor:pointer}
.hamburger span{display:block;width:26px;height:2px;background:#0f172a;margin:6px 0;border-radius:2px;transition:.3s}

/* Buttons */
.btn{background:#fff;border:1px solid #e6eefb;border-radius:14px;padding:12px 16px;font-weight:600;display:inline-block;transition:.25s ease;box-shadow:0 2px 8px rgba(15,23,42,.04)}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:linear-gradient(90deg,var(--brand),var(--brand-2));border:0;color:#001018;box-shadow:0 10px 26px rgba(34,211,238,.22)}
.btn-energize{position:relative;overflow:hidden}
.btn-energize span{position:relative;z-index:2}
.btn-energize:before{content:'';position:absolute;inset:-2px;background:linear-gradient(90deg,var(--brand),var(--brand-2));filter:blur(16px);opacity:.7;transform:translateX(-120%);transition:transform .6s ease}
.btn-energize:hover:before{transform:translateX(0)}

/* Hero */
.hero{position:relative;overflow:hidden;min-height:54vh;text-align:center}
#particles{position:absolute;inset:0;z-index:0}
.hero-bg{position:absolute;inset:-10% -5% -20% -5%;pointer-events:none;z-index:0}
.halo{position:absolute;top:-10%;left:50%;width:1400px;height:1400px;transform:translateX(-50%);background:radial-gradient(ellipse at center, rgba(14,165,233,.28), rgba(34,211,238,.12) 40%, transparent 70%);filter:blur(48px)}
.hero-inner{padding:52px 0 28px;position:relative;z-index:1}
.hero h1{font-size:clamp(28px,4.2vw,52px);line-height:1.08;margin:8px 0}
.lead{max-width:58ch;margin:0 auto;color:#334155}

/* Cards */
.grid-3{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:768px){.grid-3{grid-template-columns:repeat(3,1fr)}}
.card{background:var(--card);border:1px solid #e6eefb;border-radius:18px;padding:18px;box-shadow:0 10px 28px rgba(14,165,233,.10),0 2px 6px rgba(15,23,42,.04);transition:transform .25s, box-shadow .25s;text-align:center}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(14,165,233,.14)}

/* Pricing Highlight centered */
.highlight{margin:32px 0}
.highlight-centered{display:flex;justify-content:center;align-items:center;text-align:center}
.highlight-centered .highlight-inner{max-width:720px;margin:0 auto;background:linear-gradient(90deg,rgba(14,165,233,.12),rgba(34,211,238,.10));border:1px dashed rgba(14,165,233,.35);border-radius:18px;padding:22px;display:flex;flex-direction:column;gap:14px}
.highlight-centered h2{margin:0 0 8px}
.highlight-centered p{margin:0;color:#334155}

/* Footer */
.site-footer{border-top:1px solid #e1e8f6;margin-top:26px;padding:18px 0;background:linear-gradient(180deg,#ffffff,#f7fbff)}
.foot-bottom{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;font-size:.9rem;color:#5b6b80}

/* Animations */
.fadeup{opacity:0;transform:translateY(20px);transition:all .7s ease-out}
.fadeup.visible{opacity:1;transform:translateY(0)}

/* Responsive menu */
@media(max-width:880px){
  .menu{display:none;position:absolute;inset:58px 0 auto 0;background:#ffffffeb;padding:16px 18px;flex-direction:column;gap:10px;border-bottom:1px solid #e1e8f6;box-shadow:0 8px 30px rgba(0,0,0,.06)}
  .hamburger{display:block}
  .menu.open{display:flex}
}
@media(max-width:480px){
  .hero-inner{padding:38px 0 20px}
  .btn{padding:11px 14px}
}