:root {
  --bg: #07131f;
  --bg-soft: #0b1d2b;
  --card: rgba(10, 28, 41, 0.90);
  --card-solid: #0a1c29;
  --green: #72e6a1;
  --green-strong: #43cf84;
  --blue: #79cdf7;
  --text: #f4fbff;
  --muted: #b6c9d3;
  --border: rgba(151, 221, 246, 0.16);
  --shadow: rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }

html { color-scheme: dark; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background:
    radial-gradient(circle at 15% 0%, rgba(121, 205, 247, 0.18), transparent 28rem),
    radial-gradient(circle at 88% 10%, rgba(114, 230, 161, 0.13), transparent 24rem),
    linear-gradient(180deg, var(--bg-soft), var(--bg) 34rem);
  color: var(--text);
  line-height: 1.65;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.055;
  background-image:
    linear-gradient(rgba(255,255,255,0.8) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.8) 1px, transparent 1px);
  background-size: 8px 8px;
  mask-image: linear-gradient(to bottom, black, transparent 55%);
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(7, 19, 31, 0.82);
  position: sticky;
  top: 0;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 10;
}

.nav {
  max-width: 980px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.logo-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, var(--green), var(--blue));
  color: #052033;
  font-size: 15px;
  font-weight: 900;
  clip-path: polygon(0 0, 100% 0, 100% 78%, 72% 78%, 72% 100%, 52% 78%, 0 78%);
}

.nav-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.nav-links a,
a {
  color: var(--blue);
  text-decoration: none;
}

.nav-links a {
  color: var(--muted);
  font-size: 14px;
}

.nav-links a:hover,
a:hover { color: var(--green); }

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 54px 20px 72px;
}

.hero,
.card {
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: 0 22px 70px var(--shadow);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 6vw, 58px);
  border-radius: 4px;
  margin-bottom: 24px;
}

.hero::after {
  content: "";
  position: absolute;
  width: 210px;
  height: 210px;
  right: -95px;
  top: -100px;
  border: 18px solid rgba(114, 230, 161, 0.07);
  transform: rotate(45deg);
}

.card {
  padding: clamp(24px, 5vw, 38px);
  margin: 18px 0;
  border-radius: 4px;
}

h1, h2, h3 {
  line-height: 1.15;
  margin-top: 0;
}

h1 {
  max-width: 760px;
  font-size: clamp(38px, 7vw, 68px);
  letter-spacing: -0.04em;
  margin-bottom: 18px;
}

.legal h1 {
  font-size: clamp(34px, 6vw, 52px);
}

h2 {
  font-size: 23px;
  color: var(--green);
  margin-top: 34px;
  margin-bottom: 12px;
}

h3 {
  font-size: 17px;
  color: var(--text);
  margin-bottom: 8px;
}

p, li { color: var(--muted); }

.lead {
  max-width: 760px;
  font-size: clamp(18px, 2.5vw, 22px);
}

strong { color: var(--text); }

.badge {
  display: inline-block;
  color: #062234;
  background: linear-gradient(90deg, var(--green), var(--blue));
  font-weight: 850;
  padding: 6px 10px;
  margin-bottom: 18px;
  border-radius: 2px;
  font-size: 13px;
  letter-spacing: 0.02em;
}

.notice {
  max-width: 780px;
  border-left: 3px solid var(--green);
  padding: 13px 16px;
  background: rgba(114, 230, 161, 0.055);
  color: var(--text);
}

.button-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.button {
  display: inline-block;
  color: #062234;
  background: var(--green);
  text-decoration: none;
  font-weight: 800;
  padding: 11px 16px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 3px;
}

.button:hover {
  color: #062234;
  background: #8bf0b2;
}

.button.secondary {
  color: var(--text);
  background: rgba(121, 205, 247, 0.11);
  border-color: rgba(121, 205, 247, 0.25);
}

.button.secondary:hover {
  color: var(--text);
  background: rgba(121, 205, 247, 0.18);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 24px;
}

.feature {
  min-height: 145px;
  padding: 18px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.025);
}

.feature p {
  margin-bottom: 0;
  font-size: 14px;
}

ol, ul { padding-left: 24px; }
li { margin: 7px 0; }

code {
  background: rgba(255,255,255,0.07);
  padding: 2px 6px;
  border-radius: 3px;
  color: var(--text);
}

.footer {
  border-top: 1px solid var(--border);
  background: rgba(5, 15, 24, 0.78);
  padding: 24px 20px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 700px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links { gap: 12px; }
  main { padding-top: 30px; }
  .feature-grid { grid-template-columns: 1fr; }
}