:root {
  --bg: #f7f5f0;
  --surface: #ffffff;
  --text: #111111;
  --muted: #5f5f5f;
  --border: #e5e1d8;
  --accent: #111111;
  --max-width: 1160px;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Helvetica, Arial, sans-serif;
  line-height: 1.65;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(var(--max-width), calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  background: rgba(247, 245, 240, 0.82);
  border-bottom: 1px solid rgba(229, 225, 216, 0.8);
  z-index: 20;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 76px;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.08em;
}

nav {
  display: flex;
  gap: 24px;
  font-size: 0.96rem;
  color: var(--muted);
}

nav a:hover {
  color: var(--text);
}

.hero {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding: 88px 0 64px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 14px;
}

h1 {
  font-size: clamp(2.8rem, 5vw, 5rem);
  line-height: 1.02;
  margin: 0 0 18px;
  letter-spacing: -0.04em;
}

.hero-subtitle {
  font-size: 1.35rem;
  line-height: 1.35;
  max-width: 760px;
  margin: 0 0 18px;
  color: #1d1d1d;
}

.hero-description {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.02rem;
}

.hero-image img {
  border-radius: 40px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.section {
  padding: 72px 0;
}

.section-label {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 12px;
}

h2 {
  font-size: clamp(2rem, 3.2vw, 3rem);
  line-height: 1.08;
  margin: 0 0 24px;
  letter-spacing: -0.03em;
  max-width: 900px;
}

h3 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 1.2rem;
}

p {
  margin-top: 0;
  margin-bottom: 18px;
}

.card-grid,
.impact-grid {
  display: grid;
  gap: 20px;
}

.card-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 28px;
}

.impact-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 28px;
}

.card,
.impact-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.18s ease, opacity 0.18s ease, background 0.18s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--accent);
  color: #ffffff;
}

.button.secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.cta-section {
  padding-bottom: 96px;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0 42px;
  color: var(--muted);
  font-size: 0.94rem;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 56px;
  }

  .card-grid,
  .impact-grid {
    grid-template-columns: 1fr;
  }

  nav {
    gap: 14px;
    font-size: 0.88rem;
    flex-wrap: wrap;
    justify-content: flex-end;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(var(--max-width), calc(100% - 28px));
  }

  .nav {
    align-items: flex-start;
    gap: 12px;
    padding: 14px 0;
    flex-direction: column;
  }

  .button-row {
    flex-direction: column;
    align-items: stretch;
  }
}