* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --primary: #4f7cff;
  --accent: #12d18e;
  --bg: #0b0e17;
  --bg-2: #111524;
  --card: #151a2b;
  --text: #e8ecf7;
  --muted: #9aa4bf;
  --border: #232a41;
}
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 70% -10%, rgba(79,124,255,.18), transparent 60%), var(--bg);
  color: var(--text);
  line-height: 1.6;
}
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: 760px; }
a { color: inherit; text-decoration: none; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; font-weight: 600; border-radius: 12px; padding: 10px 18px; transition: .2s; cursor: pointer; border: 1px solid transparent; }
.btn-lg { padding: 14px 26px; font-size: 16px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn-ghost:hover { background: var(--bg-2); }

/* Nav */
.nav { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(12px); background: rgba(11,14,23,.7); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; }
.brand-mark { color: var(--primary); }
.brand-logo { height: 34px; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--muted); font-size: 15px; }
.nav-links a:hover { color: var(--text); }

/* Hero */
.hero { padding: 90px 0 70px; }
.hero-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 50px; align-items: center; }
.hero h1 { font-size: 56px; line-height: 1.05; letter-spacing: -1.5px; font-weight: 800; }
.grad { background: linear-gradient(90deg, var(--primary), var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { color: var(--muted); font-size: 20px; margin: 22px 0 30px; }
.hero-actions { display: flex; gap: 14px; }
.hero-badges { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.hero-badges li { font-size: 13px; color: var(--muted); border: 1px solid var(--border); border-radius: 999px; padding: 6px 14px; }
.online-badge { display: inline-flex; align-items: center; gap: 8px; margin-top: 22px; font-size: 14px; color: var(--muted); border: 1px solid var(--border); border-radius: 999px; padding: 8px 16px; }
.online-badge b { color: var(--text); }
.online-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(18,209,142,.5); animation: opulse 1.8s infinite; }
@keyframes opulse { 0% { box-shadow: 0 0 0 0 rgba(18,209,142,.5); } 70% { box-shadow: 0 0 0 8px rgba(18,209,142,0); } 100% { box-shadow: 0 0 0 0 rgba(18,209,142,0); } }

.hero-card { display: flex; justify-content: center; }
.balance-card { width: 100%; max-width: 360px; background: linear-gradient(160deg, var(--card), #0e1220); border: 1px solid var(--border); border-radius: 22px; padding: 26px; box-shadow: 0 30px 60px -20px rgba(0,0,0,.6); }
.bc-top { display: flex; justify-content: space-between; color: var(--muted); font-size: 14px; }
.bc-tier { color: var(--accent); font-weight: 700; }
.bc-amount { font-size: 40px; font-weight: 800; margin: 8px 0 22px; }
.bc-amount span { color: var(--muted); font-size: 24px; }
.bc-row { display: flex; justify-content: space-between; padding: 12px 0; border-top: 1px solid var(--border); }
.up { color: var(--accent); } .apy { color: var(--primary); }

/* Sections */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.eyebrow { color: var(--primary); font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; font-size: 13px; margin-bottom: 10px; }
.section-title { font-size: 38px; letter-spacing: -1px; font-weight: 800; max-width: 700px; }
.section-lead { color: var(--muted); font-size: 18px; margin-top: 14px; max-width: 640px; }

.features-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 44px; }
.feature-card { background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 28px; transition: .2s; }
.feature-card:hover { border-color: var(--primary); transform: translateY(-3px); }
.feature-icon { font-size: 30px; margin-bottom: 14px; }
.feature-card h3 { font-size: 20px; margin-bottom: 8px; }
.feature-card p { color: var(--muted); }

.tiers-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 40px; }
.tier-card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 26px; text-align: center; }
.tier-name { font-weight: 700; font-size: 18px; }
.tier-price { color: var(--muted); margin-top: 6px; }

.faq-list { margin-top: 36px; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 4px 20px; }
.faq-item summary { cursor: pointer; font-weight: 600; padding: 16px 0; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; float: right; color: var(--muted); }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { color: var(--muted); padding-bottom: 18px; }

/* CTA */
.cta { padding: 90px 0; text-align: center; }
.cta-inner h2 { font-size: 40px; font-weight: 800; letter-spacing: -1px; }
.cta-inner p { color: var(--muted); font-size: 18px; margin: 14px 0 28px; }

/* Footer */
.footer { border-top: 1px solid var(--border); background: var(--bg-2); padding-top: 56px; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 2fr; gap: 40px; padding-bottom: 40px; }
.footer-brand p { color: var(--muted); margin: 14px 0; max-width: 320px; }
.social { display: flex; gap: 16px; }
.social a { color: var(--muted); font-size: 14px; }
.social a:hover { color: var(--primary); }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-cols h4 { margin-bottom: 14px; font-size: 14px; }
.footer-cols a { display: block; color: var(--muted); padding: 5px 0; font-size: 15px; }
.footer-cols a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 22px 0; border-top: 1px solid var(--border); color: var(--muted); font-size: 14px; }
.footer-admin { opacity: .5; }

/* Responsive */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero h1 { font-size: 40px; }
  .features-grid, .tiers-grid, .footer-inner, .footer-cols { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .section-title { font-size: 28px; }
}