/* ── Reset & base ───────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg:        #ffffff;
  --color-surface:   #f7f7f7;
  --color-border:    #e0e0e0;
  --color-text:      #111111;
  --color-muted:     #666666;
  --color-accent:    #111111;
  --font:            system-ui, -apple-system, "Segoe UI", sans-serif;
  --radius:          4px;
  --gap:             2rem;
  --max-width:       960px;
  --transition:      180ms ease;
}

html {
  font-size: 16px;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ── Layout helpers ─────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* ── Main ───────────────────────────────────────────────────── */
main {
  max-width: var(--max-width);
  margin-inline: auto;
  padding: 3rem 1.5rem 4rem;
}

/* ── Section title ──────────────────────────────────────────── */
.section-title {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 2rem;
}

/* ── Project list ───────────────────────────────────────────── */
.project-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* ── Project card ───────────────────────────────────────────── */
.project-card {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 1.75rem;
  padding: 1.5rem 0;
  /* border-bottom: 1px solid var(--color-border); */
  transition: opacity var(--transition);
}

.project-card:first-child {
  /* border-top: 1px solid var(--color-border); */
}

.project-card:hover {
  opacity: 0.75;
}

.card-thumbnail-link {
  display: block;
  flex-shrink: 0;
  width: 200px;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.card-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.card-desc {
  font-size: 0.875rem;
  color: var(--color-muted);
}

.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.25rem;
}

.card-link {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: opacity var(--transition);
}

.card-link:hover {
  opacity: 0.6;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 600px) {
  header {
    padding: 2rem 1.25rem;
  }

  main {
    padding: 2rem 1.25rem 3rem;
  }

  .project-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .card-thumbnail-link {
    width: 100%;
  }
}