* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family:
    Inter,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  color: #172026;
  background: #f7f5f0;
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 7vw;
  background: rgba(247, 245, 240, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #e4dfd5;
}

.logo {
  font-weight: 800;
  font-size: 1.1rem;
}

nav {
  display: flex;
  gap: 24px;
  font-size: 0.95rem;
}

nav a {
  color: #4b5560;
}

nav a:hover {
  color: #172026;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
  color: #2563eb;
  margin-bottom: 16px;
}

h1 {
  font-size: clamp(3rem, 8vw, 6.8rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
  margin: 0 0 28px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin: 0 0 24px;
}

h3 {
  font-size: 1.35rem;
  margin: 0 0 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  height: 56px; /* fixed height */
  padding: 0 24px; /* horizontal only */

  border-radius: 999px;
  font-weight: 700;
  box-sizing: border-box;
}

.button.primary {
  background: #172026;
  color: #fff;
}

.button.secondary {
  background: transparent;
  color: #172026;
  border: 1px solid #172026;
}

.section {
  padding: 100px 7vw;
  border-top: 1px solid #e4dfd5;
}

.section-heading {
  max-width: 760px;
}

.section-heading p,
.contact p {
  max-width: 760px;
  font-size: 1.15rem;
  color: #4b5560;
}

.card,
.project-card {
  background: #fff;
  border: 1px solid #e4dfd5;
  border-radius: 24px;
  padding: 28px;
  box-shadow: 0 20px 50px rgba(23, 32, 38, 0.06);
}

.card p,
.project-card p,
.project-card li {
  color: #4b5560;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 44px;
}

.project-card span {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  color: #2563eb;
  margin-bottom: 18px;
}

.project-card ul {
  padding-left: 18px;
  margin-bottom: 0;
}

.philosophy {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  background: #172026;
  color: #fff;
}

.philosophy .eyebrow {
  color: #93c5fd;
}

.philosophy p {
  color: #d1d5db;
  font-size: 1.25rem;
}

.contact {
  text-align: center;
  background: #eaf2ff;
}

footer {
  padding: 28px 7vw;
  color: #6b7280;
  font-size: 0.9rem;
}

@media (max-width: 850px) {
  .site-header {
    align-items: flex-start;
    gap: 18px;
    flex-direction: column;
  }

  nav {
    flex-wrap: wrap;
    gap: 14px;
  }

  .project-grid,
  .philosophy {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 72px 7vw;
  }
}