:root {
  --color-bg: #faf8f5;
  --color-ink: #26241f;
  --color-muted: #6b6659;
  --color-accent: #6a7a5e;
  --color-accent-dark: #4f5c46;
  --color-border: #e4e0d6;
  --color-card: #ffffff;
  --max-width: 1120px;
  --radius: 6px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
  margin: 0 0 0.5em;
  line-height: 1.2;
}

p {
  margin: 0 0 1em;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.logo {
  font-family: Georgia, serif;
  font-size: 1.25rem;
  letter-spacing: 0.02em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.main-nav a {
  font-size: 0.95rem;
  color: var(--color-muted);
}

.main-nav a:hover {
  color: var(--color-ink);
}

.nav-cta {
  padding: 0.5rem 1.1rem;
  border: 1px solid var(--color-ink);
  border-radius: var(--radius);
  color: var(--color-ink) !important;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-ink);
}

/* Hero */

.hero {
  background: linear-gradient(160deg, #4f5c46, #2f3a29);
  color: #f4f1ea;
  padding: 6rem 0;
  text-align: center;
}

.hero-inner {
  max-width: 720px;
}

.hero h1 {
  font-size: 3rem;
  color: #ffffff;
  margin-bottom: 0.6em;
}

.hero-sub {
  font-size: 1.15rem;
  color: #dedbcf;
  margin-bottom: 2em;
}

.btn {
  display: inline-block;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: #f4f1ea;
  color: var(--color-accent-dark);
}

.btn-primary:hover {
  background: #ffffff;
}

/* Mission */

.mission {
  padding: 4.5rem 1.5rem;
  text-align: center;
}

.mission-text {
  max-width: 680px;
  margin: 0 auto;
  font-size: 1.25rem;
  color: var(--color-muted);
  font-family: Georgia, serif;
}

/* Section shared */

.section-title {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 2.5rem;
}

.approach, .process, .testimonials {
  padding: 4.5rem 0;
}

.projects {
  padding: 4.5rem 0;
  background: #f2efe7;
}

/* Approach cards */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: left;
}

.card-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--color-accent);
  margin-bottom: 1.2rem;
}

.card h3 {
  font-size: 1.2rem;
}

.card p {
  color: var(--color-muted);
  font-size: 0.95rem;
}

/* Projects */

.project-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.project-card h4 {
  font-size: 1rem;
  margin-bottom: 0.2em;
}

.project-card p {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 0;
}

.project-placeholder {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  background: repeating-linear-gradient(
    135deg,
    #e4e0d6,
    #e4e0d6 10px,
    #ece9df 10px,
    #ece9df 20px
  );
  border: 1px solid var(--color-border);
}

/* Process */

.process-inner {
  text-align: center;
}

.process-text {
  max-width: 680px;
  margin: 0 auto 3rem;
  color: var(--color-muted);
  font-size: 1.05rem;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  text-align: left;
  max-width: 900px;
  margin: 0 auto;
}

.step-number {
  display: block;
  font-family: Georgia, serif;
  font-size: 1.5rem;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.step h4 {
  margin-bottom: 0.3em;
}

.step p {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* Testimonials */

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.testimonial {
  margin: 0;
  padding: 1.75rem;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.95rem;
}

.testimonial p {
  font-style: italic;
  color: var(--color-ink);
}

.testimonial cite {
  font-style: normal;
  color: var(--color-muted);
  font-size: 0.85rem;
}

/* Footer */

.site-footer {
  background: #2f3a29;
  color: #d8d5c9;
  padding: 3.5rem 0 1.5rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  padding-bottom: 2rem;
}

.footer-col h3, .footer-col h4 {
  color: #ffffff;
  font-size: 1rem;
  margin-bottom: 0.75em;
}

.footer-col p {
  font-size: 0.9rem;
  margin-bottom: 0.4em;
}

.footer-col a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.25rem;
  font-size: 0.8rem;
  color: #a8a496;
}

/* Responsive */

@media (max-width: 860px) {
  .card-grid,
  .project-grid,
  .process-steps,
  .testimonial-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem 1.5rem 1.5rem;
    gap: 1rem;
  }

  .main-nav.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .card-grid,
  .project-grid,
  .process-steps,
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
}