/* Theme */
:root {
  --bg: #e8f8ef;
  --panel: #ffffff;
  --text: #000000;
  --muted: rgba(0,0,0,0.72);
  --brand: #22c55e; /* green */
  --brand-600: #16a34a;
  --brand-700: #15803d;
  --border: rgba(0,0,0,0.12);
  --shadow: 0 10px 30px rgba(0,0,0,0.15);
}

/* Reset */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(1000px 600px at 80% -10%, rgba(34,197,94,0.15), transparent 60%),
              var(--bg);
  line-height: 1.6;
}

img { display: block; }
a { color: inherit; text-decoration: none; }

/* Layout */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.site-nav { display: flex; gap: 18px; }
.site-nav a { color: var(--muted); }
.site-nav a:hover { color: var(--text); }

main { display: block; }

.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: center;
  padding: 64px 24px;
}
.hero-content h1 { font-size: 40px; line-height: 1.1; margin: 0 0 12px; }
.hero-content p { color: var(--muted); margin: 0 0 20px; max-width: 58ch; }
.hero-actions { display: flex; gap: 12px; }
.hero-graphic {
  height: 260px;
  border-radius: 16px;
  background:
    radial-gradient(220px 220px at 35% 35%, rgba(34,197,94,0.25), transparent 60%),
    linear-gradient(180deg, rgba(0,0,0,0.04), rgba(0,0,0,0.02));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.features { padding: 24px; }
.features h2 { margin: 0 0 16px; }
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.card {
  padding: 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 6px; }
.card p { margin: 0; color: var(--muted); }

.cta { padding: 40px 24px; text-align: center; }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 16px 24px;
  margin-top: 24px;
}
.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.footer-left { display: flex; align-items: center; gap: 8px; color: var(--muted); }
.footer-right { display: flex; gap: 16px; }
.footer-right a { color: var(--muted); }
.footer-right a:hover { color: var(--text); }

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 14px;
  font-weight: 600;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
}
.button:hover { border-color: rgba(0,0,0,0.4); }
.button.primary {
  background: linear-gradient(180deg, var(--brand), var(--brand-600));
  border: none;
  color: #041107;
}
.button.primary:hover { background: linear-gradient(180deg, var(--brand-600), var(--brand-700)); }

/* Utilities */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .hero-graphic { height: 180px; }
  .grid { grid-template-columns: 1fr; }
}