:root {
  --bg: #0a0a0a;
  --bg-soft: #141416;
  --bg-card: #17171a;
  --text: #ffffff;
  --muted: #a7a7ad;
  --accent: #22e6ff;
  --accent-dim: rgba(34, 230, 255, 0.12);
  --border: #26262b;
  --radius: 14px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 28px;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-weight: 700; font-size: 1.05rem; }
.brand-icon { width: 30px; height: 30px; border-radius: 8px; }
.nav-links { display: flex; gap: 26px; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
.nav-links a:hover { color: var(--text); }

/* ---------- buttons ---------- */
.btn {
  display: inline-block; text-decoration: none; font-weight: 600;
  border-radius: 10px; transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn-small { padding: 9px 18px; font-size: 0.9rem; background: var(--accent); color: #04181c; }
.btn-primary { padding: 15px 34px; font-size: 1.05rem; background: var(--accent); color: #04181c; box-shadow: 0 0 32px rgba(34,230,255,0.25); }
.btn-ghost { padding: 15px 34px; font-size: 1.05rem; color: var(--text); border: 1px solid var(--border); background: transparent; }
.btn-large { padding: 18px 44px; font-size: 1.15rem; }
.btn:hover { transform: translateY(-2px); }
.btn-primary:hover { box-shadow: 0 0 44px rgba(34,230,255,0.4); }

/* ---------- hero ---------- */
.hero {
  text-align: center; padding: 84px 24px 64px;
  background: radial-gradient(ellipse 70% 55% at 50% 0%, rgba(34,230,255,0.08), transparent 70%);
}
.hero-logo { width: min(430px, 82vw); height: auto; margin-bottom: 34px; }
.hero h1 { font-size: clamp(2.2rem, 5.4vw, 3.6rem); line-height: 1.12; letter-spacing: -0.02em; margin-bottom: 20px; }
.accent { color: var(--accent); }
.lede { color: var(--muted); font-size: clamp(1.05rem, 2.2vw, 1.3rem); max-width: 640px; margin: 0 auto 34px; }
.hero-ctas { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 18px; }
.hero-note { color: var(--muted); font-size: 0.92rem; }

/* ---------- stat strip ---------- */
.strip {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
}
.strip-item { padding: 30px 18px; text-align: center; border-left: 1px solid var(--border); }
.strip-item:first-child { border-left: none; }
.strip-item strong { display: block; font-size: 1.9rem; color: var(--accent); letter-spacing: -0.01em; }
.strip-item span { color: var(--muted); font-size: 0.92rem; }

/* ---------- sections ---------- */
section { padding: 88px 24px; max-width: 1060px; margin: 0 auto; }
section h2 { font-size: clamp(1.7rem, 3.6vw, 2.5rem); letter-spacing: -0.02em; line-height: 1.2; margin-bottom: 22px; text-align: center; }

.problem { text-align: center; }
.problem p { color: var(--muted); max-width: 680px; margin: 0 auto 16px; font-size: 1.08rem; }
.problem strong { color: var(--text); }

/* ---------- how ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; }
.step { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 34px 28px; }
.step-num {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--accent-dim); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.15rem; margin-bottom: 18px;
}
.step h3 { margin-bottom: 10px; font-size: 1.2rem; }
.step p { color: var(--muted); font-size: 0.98rem; }

/* ---------- pricing ---------- */
.pricing { max-width: 1120px; }
.tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; align-items: stretch; }
.tier {
  position: relative; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 36px 30px;
  display: flex; flex-direction: column;
}
.tier.featured { border: 1px solid var(--accent); box-shadow: 0 0 40px rgba(34,230,255,0.12); }
.tier-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #04181c; font-size: 0.8rem; font-weight: 700;
  padding: 4px 16px; border-radius: 20px; white-space: nowrap;
}
.tier h3 { font-size: 1.3rem; margin-bottom: 8px; }
.price { font-size: 2.1rem; font-weight: 800; margin-bottom: 20px; letter-spacing: -0.02em; }
.price span { font-size: 1rem; font-weight: 400; color: var(--muted); }
.tier ul { list-style: none; margin-bottom: 28px; flex: 1; }
.tier li { color: var(--muted); padding: 7px 0; padding-left: 26px; position: relative; font-size: 0.98rem; }
.tier li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.tier .btn { text-align: center; }

/* ---------- faq ---------- */
.faq { max-width: 760px; }
.faq details {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; margin-bottom: 12px; overflow: hidden;
}
.faq summary { padding: 20px 24px; cursor: pointer; font-weight: 600; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--accent); font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding: 0 24px 22px; color: var(--muted); }

/* ---------- cta ---------- */
.cta {
  text-align: center; background: var(--bg-soft);
  border: 1px solid var(--border); border-radius: 20px;
  padding: 72px 32px; margin-bottom: 88px;
  background-image: radial-gradient(ellipse 60% 80% at 50% 100%, rgba(34,230,255,0.07), transparent 70%);
}
.cta p { color: var(--muted); max-width: 600px; margin: 0 auto 32px; font-size: 1.08rem; }
.cta-note { margin-top: 18px !important; margin-bottom: 0 !important; font-size: 0.92rem !important; }

/* ---------- footer ---------- */
footer {
  text-align: center; padding: 48px 24px 60px;
  border-top: 1px solid var(--border); color: var(--muted); font-size: 0.92rem;
}
.footer-icon { width: 40px; height: 40px; border-radius: 10px; margin-bottom: 14px; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .nav-links { display: none; }
  .strip { grid-template-columns: repeat(2, 1fr); }
  .strip-item:nth-child(3) { border-left: none; }
  .strip-item { border-top: 1px solid var(--border); }
  .strip-item:nth-child(-n+2) { border-top: none; }
  .steps, .tiers { grid-template-columns: 1fr; }
  section { padding: 64px 20px; }
}