:root {
  --bg: #070a08;
  --panel: #0e1510;
  --line: #1c2a1f;
  --text: #e8ece9;
  --dim: #8f9c93;
  --green: #6be05a;
  --green-deep: #3fae35;
  --steel: #b8c0c2;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(900px 520px at 50% -80px, rgba(107, 224, 90, 0.16), transparent 70%),
    var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

.nav {
  max-width: 1040px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 600;
  font-size: 18px;
}
.brand:hover { text-decoration: none; }
.nav nav { display: flex; gap: 24px; }
.nav nav a { color: var(--dim); font-size: 15px; }
.nav nav a:hover { color: var(--text); text-decoration: none; }

main { max-width: 1040px; margin: 0 auto; padding: 0 24px; }

.hero { text-align: center; padding: 56px 0 72px; }
.hero-icon {
  filter: drop-shadow(0 24px 48px rgba(107, 224, 90, 0.22));
  animation: rise 0.8s ease-out both;
}
h1 {
  margin: 20px 0 8px;
  font-size: clamp(48px, 8vw, 76px);
  letter-spacing: -0.03em;
  line-height: 1;
  background: linear-gradient(180deg, #ffffff 30%, var(--steel));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.tagline { margin: 0 auto 32px; max-width: 560px; font-size: 21px; color: var(--dim); }

.actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  font-weight: 600;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); background: #142018; }
.btn.primary {
  border-color: transparent;
  background: linear-gradient(180deg, var(--green), var(--green-deep));
  color: #04140a;
  box-shadow: 0 8px 28px rgba(107, 224, 90, 0.35);
}
.btn.primary:hover { box-shadow: 0 10px 36px rgba(107, 224, 90, 0.5); background: linear-gradient(180deg, #7cec6b, var(--green-deep)); }
.btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.fine { margin-top: 18px; font-size: 14px; color: var(--dim); }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  padding-bottom: 80px;
}
.features article {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(180deg, var(--panel), transparent);
}
.features h3 { margin: 0 0 8px; font-size: 18px; }
.features h3::before {
  content: "";
  display: block;
  width: 28px;
  height: 3px;
  margin-bottom: 14px;
  border-radius: 2px;
  background: var(--green);
  box-shadow: 0 0 12px var(--green);
}
.features p { margin: 0; color: var(--dim); font-size: 15px; }

.start {
  max-width: 680px;
  margin: 0 auto;
  padding: 40px 0 80px;
}
.start h2 { font-size: 32px; letter-spacing: -0.02em; margin: 0 0 20px; }
.start ol { padding-left: 22px; margin: 0; }
.start li { margin-bottom: 12px; color: var(--dim); }
.start li strong { color: var(--text); }
.start li::marker { color: var(--green); font-weight: 700; }
code {
  font: 14px ui-monospace, "SF Mono", Menlo, monospace;
  padding: 2px 6px;
  border-radius: 6px;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--text);
}
.note {
  margin-top: 24px;
  padding: 14px 18px;
  border-left: 3px solid var(--green-deep);
  background: var(--panel);
  border-radius: 0 10px 10px 0;
  color: var(--dim);
  font-size: 15px;
}

.story {
  max-width: 680px;
  margin: 0 auto;
  padding: 40px 0 80px;
  border-top: 1px solid var(--line);
}
.story h2 { font-size: 32px; letter-spacing: -0.02em; margin: 0 0 16px; }
.story h3 { font-size: 21px; margin: 36px 0 10px; }
.story p, .story li { color: var(--dim); }
.story ul { padding-left: 22px; }
.story li { margin-bottom: 12px; }
.story li strong { color: var(--text); }
.story li::marker { color: var(--green); }

footer {
  border-top: 1px solid var(--line);
  padding: 28px 24px 40px;
  text-align: center;
  color: var(--dim);
  font-size: 14px;
}
footer p { margin: 4px 0; }

@keyframes rise {
  from { opacity: 0; transform: translateY(16px) scale(0.96); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 600px) {
  .nav nav a:not(:last-child) { display: none; }
  .hero { padding-top: 24px; }
  .tagline { font-size: 18px; }
}