/* ── Reset & Base ─────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:       #080810;
  --bg2:      #0d0d1a;
  --accent:   #00BFFF;
  --accent2:  #0080cc;
  --text:     #e0e0ee;
  --muted:    #7070a0;
  --border:   rgba(0,191,255,0.15);
  --card-bg:  rgba(255,255,255,0.03);
  --radius:   12px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Nav ───────────────────────────────────────── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 99;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 40px;
  background: rgba(8,8,16,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.logo { font-size: 1.2rem; font-weight: 700; color: var(--accent); letter-spacing: 0.5px; }
.nav-buy {
  background: var(--accent); color: #000;
  padding: 8px 20px; border-radius: 6px;
  font-weight: 700; font-size: 0.9rem;
  transition: opacity .2s;
}
.nav-buy:hover { opacity: 0.85; text-decoration: none; }

/* ── Hero ──────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: 120px 20px 80px;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  top: -200px; left: 50%; transform: translateX(-50%);
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(0,191,255,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 24px;
}
.accent { color: var(--accent); }
.subtitle {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 540px;
  margin-bottom: 40px;
}
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #000;
  font-weight: 800;
  font-size: 1.05rem;
  padding: 14px 36px;
  border-radius: 8px;
  letter-spacing: 0.3px;
  transition: transform .15s, box-shadow .15s;
  box-shadow: 0 0 30px rgba(0,191,255,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 45px rgba(0,191,255,0.5); text-decoration: none; }

/* ── Sections ──────────────────────────────────── */
section {
  padding: 90px 40px;
  max-width: 1100px;
  margin: 0 auto;
}
section h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  text-align: center;
  margin-bottom: 60px;
}

/* ── Feature Grid ──────────────────────────────── */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: var(--accent); transform: translateY(-3px); }
.card-icon { font-size: 2rem; margin-bottom: 12px; }
.card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; color: #fff; }
.card p { font-size: 0.9rem; color: var(--muted); }

/* ── How it works ──────────────────────────────── */
.how { text-align: center; }
.steps {
  display: flex;
  gap: 32px;
  justify-content: center;
  flex-wrap: wrap;
}
.step {
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  max-width: 220px;
}
.step-num {
  width: 48px; height: 48px;
  background: var(--accent); color: #000;
  border-radius: 50%;
  font-weight: 900; font-size: 1.3rem;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 20px rgba(0,191,255,0.4);
}
.step p { font-size: 0.95rem; color: var(--muted); text-align: center; }
kbd {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 4px;
  padding: 2px 7px;
  font-size: 0.85rem;
  font-family: monospace;
}

/* ── Versions ──────────────────────────────────── */
.versions { text-align: center; }
.version-tags { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 16px; }
.tag {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 18px;
  font-size: 0.95rem;
  font-weight: 600;
}
.tag-new { border-color: var(--accent); color: var(--accent); }
.small { font-size: 0.85rem; color: var(--muted); }

/* ── Pricing ───────────────────────────────────── */
.pricing { text-align: center; }
.price-cards { display: flex; justify-content: center; gap: 24px; flex-wrap: wrap; margin-bottom: 24px; }
.price-card {
  background: var(--card-bg);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 40px 48px;
  min-width: 300px;
  box-shadow: 0 0 40px rgba(0,191,255,0.1);
}
.plan-name { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 2px; color: var(--accent); margin-bottom: 12px; font-weight: 700; }
.price { font-size: 3.2rem; font-weight: 900; color: #fff; margin-bottom: 28px; }
.period { font-size: 1rem; font-weight: 400; color: var(--muted); }
.price-card ul { list-style: none; margin-bottom: 32px; }
.price-card ul li { padding: 6px 0; font-size: 0.95rem; color: var(--muted); }
.btn-buy {
  width: 100%;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: 8px;
  padding: 14px 0;
  font-size: 1.05rem;
  font-weight: 800;
  cursor: pointer;
  transition: opacity .2s, transform .15s;
  box-shadow: 0 0 24px rgba(0,191,255,0.35);
}
.btn-buy:hover { opacity: 0.88; transform: translateY(-1px); }
.trust { color: var(--muted); }

/* ── FAQ ───────────────────────────────────────── */
.faq { max-width: 700px; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
details {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  cursor: pointer;
}
details[open] { border-color: var(--accent); }
summary {
  font-weight: 600;
  list-style: none;
  user-select: none;
  font-size: 1rem;
}
summary::-webkit-details-marker { display: none; }
details p { margin-top: 12px; color: var(--muted); font-size: 0.9rem; }

/* ── Footer ────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 28px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--muted);
}

/* ── Responsive ────────────────────────────────── */
@media (max-width: 600px) {
  nav { padding: 12px 20px; }
  section { padding: 60px 20px; }
  .price-card { min-width: unset; width: 100%; padding: 32px 24px; }
  footer { flex-direction: column; align-items: flex-start; }
}