/* ── Theme tokens ──────────────────────────────────────────── */
:root {
  color-scheme: light;
  --color-page: #F5F2EE;
  --color-page-alt: #EFEBE6;
  --color-ink: #1C1C1C;
  --color-ink-secondary: #6B6560;
  --color-ink-tertiary: #9C958E;
  --color-accent: #2D5A3D;
  --color-accent-hover: #1E3F2B;
  --color-accent-light: #E8F0EB;
  --color-stroke: #DDD8D2;
  --color-card: #FFFFFF;
  --color-card-shadow: rgba(0, 0, 0, 0.07);
}

.dark {
  color-scheme: dark;
  --color-page: #1A1816;
  --color-page-alt: #222019;
  --color-ink: #E8E4DF;
  --color-ink-secondary: #A09A93;
  --color-ink-tertiary: #7A746D;
  --color-accent: #4A9168;
  --color-accent-hover: #5BAA7A;
  --color-accent-light: #1E2E24;
  --color-stroke: #3A3632;
  --color-card: #242120;
  --color-card-shadow: rgba(0, 0, 0, 0.3);
}

/* ── Base ─────────────────────────────────────────────────── */
body {
  background-color: var(--color-page);
  color: var(--color-ink);
  font-family: 'Inter', system-ui, sans-serif;
}

/* ── Header ───────────────────────────────────────────────── */
header {
  background-color: var(--color-page);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}
header.scrolled {
  border-bottom-color: var(--color-stroke);
}

/* ── Nav links ────────────────────────────────────────────── */
.nav-link {
  font-size: 0.875rem;
  color: var(--color-ink-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}
.nav-link:hover {
  color: var(--color-ink);
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 0.625rem 1.25rem;
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 6px;
  text-decoration: none;
  transition: background-color 0.15s ease;
}
.btn-primary:hover {
  background-color: var(--color-accent-hover);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  padding: 0.625rem 1.25rem;
  background-color: transparent;
  color: var(--color-ink);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 6px;
  border: 1px solid var(--color-stroke);
  text-decoration: none;
  transition: border-color 0.15s ease;
}
.btn-secondary:hover {
  border-color: var(--color-ink-tertiary);
}

/* ── Theme toggle ─────────────────────────────────────────── */
#theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--color-ink-secondary);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}
#theme-toggle:hover {
  color: var(--color-ink);
  border-color: var(--color-stroke);
}


/* ── Project cards ────────────────────────────────────────── */
.project-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-stroke);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.project-card:hover {
  box-shadow: 0 4px 24px var(--color-card-shadow);
  transform: translateY(-2px);
}

/* ── Project image ────────────────────────────────────────── */
.project-image-container {
  width: 100%;
  position: relative;
  padding-top: 56.25%; /* 16:9 */
  background-color: var(--color-page-alt);
  overflow: hidden;
}
.project-image-container.rounded-xl {
  border-radius: 12px;
}
.project-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  transition: transform 0.3s ease;
}
.project-card:hover .project-image {
  transform: scale(1.02);
}

/* ── Tag pills ────────────────────────────────────────────── */
.project-tag {
  display: inline-flex;
  padding: 0.125rem 0.625rem;
  background-color: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: 9999px;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}

/* ── Featured badge ───────────────────────────────────────── */
.featured-badge {
  display: inline-flex;
  padding: 0.3rem 0.875rem;
  background-color: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

/* ── Card action link ─────────────────────────────────────── */
.project-action-link {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.15s ease;
}
.project-action-link::after {
  content: '→';
  transition: transform 0.15s ease;
}
.project-action-link:hover {
  gap: 8px;
}

/* ── Blog post typography (used in blog/*.html pages) ────── */
.blog-content p {
  color: var(--color-ink-secondary);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}
.blog-content h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}
.blog-content h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}
.blog-content ul, .blog-content ol {
  color: var(--color-ink-secondary);
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
  line-height: 1.8;
}
.blog-content ul { list-style: disc; }
.blog-content ol { list-style: decimal; }
.blog-content li { margin-bottom: 0.25rem; }
.blog-content code {
  font-family: ui-monospace, "SF Mono", monospace;
  font-size: 0.875em;
  background-color: var(--color-page-alt);
  padding: 0.1em 0.4em;
  border-radius: 4px;
}
.blog-content pre {
  background-color: var(--color-page-alt);
  border: 1px solid var(--color-stroke);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}
.blog-content pre code {
  background: none;
  padding: 0;
  font-size: 0.8125em;
  line-height: 1.7;
}
.blog-content strong { color: var(--color-ink); font-weight: 600; }

/* ── Footer links ─────────────────────────────────────────── */
.footer-link {
  font-size: 0.875rem;
  color: var(--color-ink-tertiary);
  text-decoration: none;
  transition: color 0.15s ease;
}
.footer-link:hover {
  color: var(--color-ink);
}

/* ── Scroll-in fade ───────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Cat toast ────────────────────────────────────────────── */
#cat-toast {
  opacity: 0;
  transition: opacity 0.3s ease;
}

/* ── Hide scrollbar ───────────────────────────────────────── */
.scrollbar-none {
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.scrollbar-none::-webkit-scrollbar {
  display: none;
}