html {
  scroll-behavior: smooth;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: #ffffff;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  color: #111111;
}

/* ── Header ─────────────────────────── */

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 40px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
  color: inherit;
}

.site-logo {
  width: 80px;
  height: 80px;
  object-fit: contain;
}

.site-name h1 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.1;
}

.site-name p {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #666666;
  margin-top: 3px;
}

/* ── Navigation ──────────────────────── */

nav {
  display: flex;
  gap: 28px;
}

nav a {
  text-decoration: none;
  color: #111111;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

nav a:hover,
nav a.active {
  color: #888888;
}

/* ── Main / Grid ─────────────────────── */

main {
  padding: 24px 40px 40px;
}

.button-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.btn-item a {
  display: block;
  line-height: 0;
}

.btn-img {
  display: block;
  width: 100%;
  height: auto;
  cursor: pointer;
}

/* ── Project Pages ───────────────────── */

.project-page {
  padding: 32px 0 60px;
}

.back-link {
  display: inline-block;
  margin-bottom: 28px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: #111;
}

.back-link:hover {
  color: #888;
}

.project-title {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
  line-height: 1.1;
}

.project-credits {
  display: flex;
  flex-wrap: wrap;
  gap: 36px;
  margin-bottom: 36px;
  padding-bottom: 32px;
  border-bottom: 1px solid #eeeeee;
}

.credit-item {
  font-size: 0.9rem;
  color: #333;
  line-height: 1.4;
}

.credit-item strong {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #999;
  margin-bottom: 4px;
  font-weight: 600;
}

.project-images {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.project-image-hero {
  max-width: 560px;
}

.project-image-hero img {
  width: 100%;
  height: auto;
  display: block;
}

.project-image-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.project-image-row.cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.project-image-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.project-image-item img {
  width: 100%;
  height: auto;
  display: block;
}

.project-image-caption {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #999;
}

.project-section {
  margin-top: 48px;
}

.project-section-title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #111;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid #eeeeee;
}

.project-subsection {
  margin-top: 32px;
}

.project-subsection-title {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #999;
  margin-bottom: 4px;
}

.project-video-wrap {
  max-width: 560px;
  aspect-ratio: 16 / 9;
}

.project-video-wrap iframe {
  width: 100%;
  height: 100%;
  display: block;
  border: none;
}

.project-video-note {
  max-width: 560px;
  margin-top: 16px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: #444;
}

.project-subsection-note {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: #bbb;
  margin-bottom: 12px;
}

/* ── Page content (About, Contact) ───── */

.page-content {
  max-width: 800px;
  padding: 60px 0;
}

.page-content h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}

.page-content p {
  font-size: 1rem;
  line-height: 1.7;
  color: #444444;
  margin-bottom: 16px;
}

.page-content a {
  color: #111111;
  text-decoration: underline;
}

.page-content a:hover {
  color: #888888;
}

/* ── Footer ──────────────────────────── */

footer {
  margin-top: 40px;
  padding: 20px 40px;
  border-top: 1px solid #dddddd;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: #999999;
}

footer a {
  color: #999999;
  text-decoration: none;
  letter-spacing: 0.06em;
}

footer a:hover {
  color: #333333;
}

/* ── Responsive ──────────────────────── */

@media (max-width: 900px) {
  header {
    padding: 16px 24px;
  }
  main {
    padding: 20px 24px 32px;
  }
  .button-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  footer {
    padding: 16px 24px;
  }
}

@media (max-width: 520px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
  }
  main {
    padding: 16px;
  }
  .button-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  footer {
    flex-direction: column;
    gap: 8px;
    padding: 16px;
    text-align: center;
  }
}