:root {
  --bg: #0b1020;
  --bg-soft: #121933;
  --surface: rgba(255,255,255,0.08);
  --surface-strong: rgba(255,255,255,0.14);
  --text: #edf2ff;
  --muted: #c7d2f0;
  --line: rgba(255,255,255,0.12);
  --primary: #6ee7b7;
  --secondary: #60a5fa;
  --shadow: 0 20px 50px rgba(0,0,0,0.25);
}
body.light {
  --bg: #f6f8fc;
  --bg-soft: #ffffff;
  --surface: rgba(255,255,255,0.88);
  --surface-strong: rgba(255,255,255,0.96);
  --text: #14213d;
  --muted: #52607a;
  --line: rgba(20,33,61,0.10);
  --primary: #0f766e;
  --secondary: #2563eb;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.10);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(110,231,183,0.17), transparent 30%),
    radial-gradient(circle at top right, rgba(96,165,250,0.15), transparent 30%),
    linear-gradient(160deg, var(--bg), #0f1530 70%);
  color: var(--text);
  min-height: 100vh;
}
body.light {
  background:
    radial-gradient(circle at top left, rgba(34,197,94,0.10), transparent 28%),
    radial-gradient(circle at top right, rgba(59,130,246,0.10), transparent 28%),
    linear-gradient(180deg, #f8fbff, #eef3fb);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1150px, calc(100% - 32px)); margin: 0 auto; }
header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(8,12,24,0.55);
  border-bottom: 1px solid var(--line);
}
body.light header { background: rgba(255,255,255,0.72); }
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 0;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: .2px; }
.logo {
  width: 42px; height: 42px; border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: var(--shadow);
  position: relative;
}
.logo::after {
  content: ""; position: absolute; inset: 8px; border-radius: 10px;
  background: rgba(255,255,255,0.24);
}
.nav-links { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--text); }
.btn, button {
  border: 0; cursor: pointer; border-radius: 999px; padding: 12px 18px;
  font-weight: 700; transition: .25s ease;
}
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--secondary)); color: white; }
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-secondary { background: var(--surface); color: var(--text); border: 1px solid var(--line); }
.hero { padding: 72px 0 34px; }
.hero-grid {
  display: grid; grid-template-columns: 1.2fr .8fr; gap: 28px; align-items: center;
}
.hero-card, .card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 28px;
  box-shadow: var(--shadow); backdrop-filter: blur(10px);
}
.hero-copy { padding: 38px; }
.eyebrow {
  display: inline-flex; gap: 8px; align-items: center; padding: 8px 12px;
  border-radius: 999px; background: rgba(255,255,255,0.08); color: var(--muted);
  border: 1px solid var(--line); font-size: 14px;
}
h1 { font-size: clamp(2.2rem, 4vw, 4.4rem); line-height: 1.02; margin: 18px 0 14px; }
.lead { font-size: 1.06rem; color: var(--muted); line-height: 1.7; max-width: 62ch; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; margin-top: 24px; }
.stat { padding: 16px; border-radius: 20px; background: rgba(255,255,255,0.05); border: 1px solid var(--line); }
.stat strong { display: block; font-size: 1.35rem; }
.preview { padding: 22px; }
.preview-box {
  border-radius: 24px; min-height: 420px; padding: 20px;
  background: linear-gradient(180deg, rgba(255,255,255,0.16), rgba(255,255,255,0.04));
  border: 1px solid var(--line);
}
.preview-badge { display: inline-block; padding: 8px 12px; border-radius: 999px; background: rgba(255,255,255,0.18); }
section { padding: 34px 0; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 24px; }
.section-head h2 { font-size: clamp(1.8rem, 3vw, 3rem); margin-bottom: 10px; }
.section-head p { color: var(--muted); line-height: 1.7; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.feature, .price, .info-card, .form-card { padding: 24px; }
.feature h3, .info-card h3, .price h3 { margin-top: 8px; }
.feature p, .info-card p, .price p, li { color: var(--muted); line-height: 1.7; }
.icon {
  width: 52px; height: 52px; display: grid; place-items: center; font-size: 22px;
  border-radius: 16px; background: linear-gradient(135deg, rgba(110,231,183,.22), rgba(96,165,250,.22));
}
.price .amount { font-size: 2.2rem; font-weight: 800; margin: 10px 0; }
.price ul { padding-left: 18px; }
.tag {
  display: inline-block; padding: 6px 10px; border-radius: 999px; font-size: 13px;
  background: rgba(110,231,183,0.16); color: var(--text); border: 1px solid var(--line);
}
.form-wrap { display: grid; place-items: center; padding: 52px 0; }
.form-card { width: min(540px, 100%); }
label { display: block; margin: 14px 0 8px; font-weight: 700; }
input, textarea, select {
  width: 100%; padding: 14px 16px; border-radius: 16px; border: 1px solid var(--line);
  background: rgba(255,255,255,0.08); color: var(--text); outline: none;
}
body.light input, body.light textarea, body.light select { background: #fff; }
input::placeholder, textarea::placeholder { color: #8ea0be; }
.helper { color: var(--muted); font-size: .95rem; margin-top: 12px; }
.cta {
  padding: 28px; display: flex; justify-content: space-between; gap: 20px; align-items: center; flex-wrap: wrap;
}
footer { padding: 28px 0 48px; color: var(--muted); }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 20px; }
.small { font-size: .95rem; color: var(--muted); }
.toggle {
  display: inline-flex; align-items: center; gap: 10px; background: var(--surface);
  border: 1px solid var(--line); padding: 10px 14px; border-radius: 999px;
}
.inline-links { display: flex; gap: 14px; flex-wrap: wrap; }
.center-hero { padding: 70px 0 16px; text-align: center; }
.list-clean { list-style: none; padding: 0; margin: 0; }
.list-clean li { padding: 10px 0; border-bottom: 1px solid var(--line); }
@media (max-width: 900px) {
  .hero-grid, .grid-3, .grid-2, .footer-grid { grid-template-columns: 1fr; }
  .nav { gap: 12px; align-items: flex-start; flex-direction: column; }
  .stats { grid-template-columns: 1fr; }
}