:root {
  color-scheme: light dark;

  --brand-start: #10b981;
  --brand-end: #059669;

  --bg: #f4f5f7;
  --surface: #ffffff;
  --text: #111827;
  --text-muted: #6b7280;
  --border: #e5e7eb;

  --badge-bg: #ecfdf5;
  --badge-text: #047857;
  --badge-border: #a7f3d0;

  --radius-lg: 0.75rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1218;
    --surface: #161b22;
    --text: #f3f4f6;
    --text-muted: #9ca3af;
    --border: #1f242d;

    --badge-bg: #07261c;
    --badge-text: #34d399;
    --badge-border: #0f3d2c;
  }
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter",
    ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.5;
}

.page {
  max-width: 1080px;
  margin: 0 auto;
  padding: clamp(1.5rem, 5vw, 4rem) clamp(1.25rem, 5vw, 2rem);
}

.hero {
  text-align: center;
  padding: clamp(2rem, 8vw, 5rem) 0 clamp(2.5rem, 6vw, 4rem);
  position: relative;
}

.logo-wrap {
  position: relative;
  display: inline-flex;
  margin-bottom: 1.5rem;
}

.logo-wrap::before {
  content: "";
  position: absolute;
  inset: -40px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.25), transparent 70%);
  z-index: -1;
}

.logo {
  display: block;
  border-radius: 1.25rem;
}

.badge {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-lg);
  background: var(--badge-bg);
  color: var(--badge-text);
  border: 1px solid var(--badge-border);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2.25rem, 6vw, 3.5rem);
  font-weight: 800;
  margin: 0.25rem 0 1rem;
  background: linear-gradient(135deg, var(--brand-start), var(--brand-end));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  font-weight: 600;
  margin: 0 0 0.5rem;
}

.subtext {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 480px;
  margin: 0 auto;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  padding: 1rem 0 clamp(2rem, 6vw, 3.5rem);
}

.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.feature-icon {
  width: 2.25rem;
  height: 2.25rem;
  color: var(--brand-end);
  margin-bottom: 0.9rem;
}

.feature-icon svg {
  width: 100%;
  height: 100%;
}

.feature h2 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
}

.feature p {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin: 0;
}

.site-footer {
  text-align: center;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.site-footer p {
  margin: 0.25rem 0;
}