@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --color-bg: #0A0A0C;
  --color-bg-elevated: #141417;
  --color-text: #F0EFEA;
  --color-text-muted: #8C8C92;
  --color-accent: #4FA8FF;
  --color-accent-glow: rgba(79, 168, 255, 0.35);
  --color-divider: #232328;
  --color-status-progress: #E0A845;
  --color-status-complete: #4FA8FF;

  --font-display: 'DM Serif Display', serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --text-name-mark: 20px;
  --text-signature: 13px;
  --text-case-title: clamp(32px, 5vw, 44px);
  --text-subhead: 20px;
  --text-body: 17px;
  --text-meta: 13px;

  --gap-mobile: 24px;
  --gap-desktop: 36px;
  --content-max: 780px;
}

html[data-theme="light"] {
  --color-bg: #FAFAF7;
  --color-bg-elevated: #FFFFFF;
  --color-text: #16161A;
  --color-text-muted: #5B5B62;
  --color-divider: #E3E2DD;
  --color-accent-glow: rgba(30, 110, 200, 0.18);
}

html[data-theme="light"] .post-body { color: #1E1E22; }

* { transition: background-color 150ms ease-out, color 150ms ease-out, border-color 150ms ease-out; }

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

main { display: block; }

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

figure {
  margin: 0;
}

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

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

button {
  font-family: inherit;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
}

h1, h2, h3 {
  margin: 0;
  font-weight: 400;
}

p { margin: 0; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.page-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

@media (min-width: 1024px) {
  .page-container { padding: 0 48px; }
}

.eyebrow {
  font-size: var(--text-meta);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.divider {
  border: none;
  border-top: 1px solid var(--color-divider);
  margin: 48px 0;
}

.footer {
  border-top: 1px solid var(--color-divider);
  margin-top: 80px;
  padding: 32px 0 56px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text-muted);
  font-size: var(--text-meta);
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
  transition: color 150ms ease-out;
}

.footer-links a .fa-brands,
.footer-links a .fa-solid {
  font-size: 0.95em;
}

.hero-btn.js-resume-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-links a:hover {
  color: var(--color-accent);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

/* Generic tag/category filter bar -- shared by any section that lists
   tagged content (Writing, Work, and any future section). Pills are
   discovered from the data at render time (see js/tag-filter.js), so
   adding a new category value (e.g. "teaching") to a content JSON file
   is all it takes for a new pill to appear here -- no CSS or markup
   changes needed. */
.tag-filter {
  margin: 20px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* Modifier for sections whose list below is column-width (e.g. Writing) so
   the filter bar lines up with it instead of spanning the full grid. */
.tag-filter--narrow {
  max-width: var(--content-max);
  margin-left: auto;
  margin-right: auto;
}

.tag-filter-btn {
  font-size: 13px;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid var(--color-divider);
  border-radius: 20px;
  padding: 6px 16px;
  transition: color 150ms ease-out, border-color 150ms ease-out, background 150ms ease-out;
}

.tag-filter-btn:hover { color: var(--color-text); }

.tag-filter-btn.active {
  color: var(--color-bg);
  background: var(--color-accent);
  border-color: var(--color-accent);
}

/* Shared chip style, used by Work tags, publication type badges, and the
   Skills & Tools list on about.html. Also defined locally in case-file.css
   and lightbox.css (pre-existing, harmless duplication with identical
   rules) -- this copy is the one that actually reaches about.html, which
   doesn't load either of those stylesheets. */
.tag-chip {
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  border: 1px solid var(--color-divider);
  border-radius: 3px;
  padding: 3px 9px;
}