/* ==========================================================================
   Design tokens
   ========================================================================== */
:root {
  --color-bg: #EDE6D9;          /* warm parchment */
  --color-ink: #1B1A17;         /* near-black text */
  --color-accent: #D6541F;      /* ember orange */
  --color-steel: #5C6570;       /* secondary text / borders */
  --color-brass: #B8934B;       /* tertiary accent */
  --color-brass-text: #8A6A2D;  /* brass, darkened for legible text on light backgrounds */
  --color-cream: #F4EFE6;       /* over dark / photo backgrounds */

  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "IBM Plex Sans", -apple-system, "Segoe UI", sans-serif;

  --container-width: 1200px;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;

  --radius: 2px;
}

/* ==========================================================================
   Reset
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
ul, ol { padding: 0; margin: 0; list-style: none; }
button { font: inherit; cursor: pointer; }

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  line-height: 1.15;
  margin: 0 0 var(--space-sm);
  color: var(--color-ink);
}
h1 { font-size: clamp(2.25rem, 4vw + 1rem, 4rem); }
h2 { font-size: clamp(1.75rem, 2.5vw + 1rem, 2.75rem); }
h3 { font-size: clamp(1.25rem, 1.5vw + 1rem, 1.75rem); }
h4 { font-size: 1.1rem; letter-spacing: 0.08em; }

p { margin: 0 0 var(--space-sm); max-width: 65ch; }

.eyebrow {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: inline-block;
  margin-bottom: var(--space-xs);
}

.lede { font-size: 1.15rem; color: var(--color-steel); }

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-md);
}
section { padding-block: var(--space-lg); }
section.section-tight-top { padding-top: var(--space-md); }

/* ==========================================================================
   Header / nav
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-bg);
  border-bottom: 1px solid rgba(27, 26, 23, 0.1);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-sm);
}
.logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
}
.nav-links {
  display: flex;
  gap: var(--space-sm);
}
.nav-links a {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-ink);
  padding-block: var(--space-xs);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.nav-toggle {
  display: none;
  font-family: var(--font-body);
}

@media (max-width: 880px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--color-bg);
    border-bottom: 1px solid rgba(27, 26, 23, 0.1);
    padding: var(--space-sm) var(--space-md);
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding-block: var(--space-sm); font-size: 0.85rem; }
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: none;
    border: 1px solid var(--color-ink);
    font-size: 1.1rem;
    line-height: 1;
  }
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.85rem 1.75rem;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius);
  transition: background 0.2s ease, color 0.2s ease;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-cream);
}
.btn-primary:hover { background: #b8451a; border-color: #b8451a; }
.btn-secondary {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-ink);
}
.btn-secondary:hover {
  background: var(--color-ink);
  color: var(--color-cream);
}

/* ==========================================================================
   Cards / misc
   ========================================================================== */
.card {
  background: var(--color-cream);
  border: 1px solid rgba(27, 26, 23, 0.08);
  padding: var(--space-md);
}
.tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-brass-text);
  border: 1px solid var(--color-brass);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius);
}

/* ==========================================================================
   Hero (home page)
   ========================================================================== */
.hero {
  position: relative;
  min-height: clamp(420px, 56vh, 600px);
  display: flex;
  align-items: flex-end;
  color: var(--color-cream);
  background-size: cover;
  background-position: center;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(27,26,23,0.35) 0%, rgba(27,26,23,0.55) 55%, rgba(27,26,23,0.85) 100%);
  z-index: -1;
}
.hero .container { padding-block: var(--space-lg) var(--space-md); }
.hero h1 { color: var(--color-cream); }
.hero .eyebrow { color: var(--color-brass); }
.hero-subhead { color: var(--color-cream); opacity: 0.9; font-size: 1.15rem; max-width: 60ch; }
.hero-meta {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-cream);
  opacity: 0.75;
  margin-top: var(--space-sm);
}
.hero-actions { display: flex; gap: var(--space-sm); margin-top: var(--space-md); flex-wrap: wrap; }

/* ==========================================================================
   Page header (non-home pages)
   ========================================================================== */
.page-header {
  background: var(--color-ink);
  color: var(--color-cream);
  padding-block: var(--space-lg) var(--space-md);
}
.page-header .eyebrow { color: var(--color-brass); }
.page-header h1 { color: var(--color-cream); margin-bottom: var(--space-xs); }
.page-header p { color: var(--color-cream); opacity: 0.8; }

/* ==========================================================================
   Photo pair (How I Think)
   ========================================================================== */
.photo-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}
.photo-pair figure { margin: 0; }
.photo-pair img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.photo-pair figcaption {
  margin-top: var(--space-xs);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-steel);
}
.two-col {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-lg);
  align-items: start;
}
@media (max-width: 780px) {
  .two-col { grid-template-columns: 1fr; gap: var(--space-md); }
}

/* ==========================================================================
   Materials & Tools plate
   ========================================================================== */
.tool-plate {
  background: var(--color-cream);
  border: 1px solid rgba(27, 26, 23, 0.08);
  padding: var(--space-md);
  display: grid;
  gap: var(--space-xs) var(--space-md);
  grid-template-columns: repeat(2, 1fr);
}
.tool-plate dt {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-brass-text);
}
.tool-plate dd { margin: 0 0 var(--space-sm); color: var(--color-ink); }

/* ==========================================================================
   Project grid / cards
   ========================================================================== */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}
.project-card {
  background: var(--color-cream);
  border: 1px solid rgba(27, 26, 23, 0.08);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.project-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 24px -12px rgba(27, 26, 23, 0.35);
}
.project-card .thumb { aspect-ratio: 4 / 3; overflow: hidden; }
.project-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.project-card .body { padding: var(--space-md); flex: 1; display: flex; flex-direction: column; }
.project-card .index {
  font-family: var(--font-display);
  color: var(--color-brass-text);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xs);
}
.project-card h3 { margin-bottom: var(--space-xs); }
.project-card p { font-size: 0.92rem; color: var(--color-steel); flex: 1; }
.tag-row { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: var(--space-sm); }
.card-cta {
  align-self: center;
  margin-top: var(--space-md);
  pointer-events: none;
}
.project-card:hover .card-cta {
  background: #b8451a;
  border-color: #b8451a;
}

/* Lighter cards for "More Builds" */
.build-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--space-md); }
.build-item { display: flex; flex-direction: column; gap: var(--space-xs); }
.build-item .thumb { aspect-ratio: 4/3; overflow: hidden; }
.build-item .thumb img { width: 100%; height: 100%; object-fit: cover; }
.build-item h4 { margin: 0; }
.build-item p { font-size: 0.9rem; color: var(--color-steel); margin: 0; }

/* ==========================================================================
   Project detail page
   ========================================================================== */
.project-hero { aspect-ratio: 16 / 9; overflow: hidden; margin-bottom: var(--space-md); }
.project-hero img { width: 100%; height: 100%; object-fit: cover; }
.back-link {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-brass-text);
  margin-bottom: var(--space-sm);
}
.back-link:hover { color: var(--color-accent); }
.video-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--color-ink);
  border-bottom: 1px solid var(--color-steel);
  padding-bottom: 2px;
}
.video-link:hover { color: var(--color-accent); border-color: var(--color-accent); }
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--space-sm); margin-top: var(--space-md); }
.gallery img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }

/* ==========================================================================
   Briefs / case studies (Real-World Work)
   ========================================================================== */
.brief-list { display: grid; gap: var(--space-sm); }
.brief {
  background: var(--color-cream);
  border: 1px solid rgba(27, 26, 23, 0.08);
  padding: var(--space-md);
}
.brief h3 { margin-bottom: var(--space-xs); }
.brief .flow {
  font-size: 0.95rem;
  color: var(--color-brass-text);
  letter-spacing: 0.02em;
  margin: 0;
}
.brief .role {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-brass-text);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin: 0 0 var(--space-sm);
}
.bullet-list { list-style: disc; padding-left: 1.25rem; margin: 0; }
.bullet-list li { margin-bottom: 0.5rem; }
.bullet-list li:last-child { margin-bottom: 0; }
.bullet-list ul { list-style: circle; padding-left: 1.25rem; margin: 0.5rem 0 0; }

/* ==========================================================================
   Stat tiles (Academics)
   ========================================================================== */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}
@media (min-width: 560px) {
  .stat-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 880px) {
  .stat-grid { grid-template-columns: repeat(6, 1fr); }
}
.stat-tile {
  background: var(--color-cream);
  border: 1px solid rgba(27, 26, 23, 0.08);
  padding: var(--space-md);
  text-align: center;
}
.stat-tile .value {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--color-accent);
  line-height: 1;
}
.stat-tile .label {
  margin-top: var(--space-xs);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-steel);
}

/* ==========================================================================
   Entry (Research / Law / Leadership list entries)
   ========================================================================== */
.entry { padding-block: var(--space-md); border-top: 1px solid rgba(27, 26, 23, 0.1); }
.entry:first-of-type { border-top: none; }
.entry-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-xs); align-items: baseline; margin-bottom: var(--space-xs); }
.entry-head .when { font-size: 0.95rem; font-weight: 600; color: var(--color-brass-text); letter-spacing: 0.04em; text-transform: uppercase; }

/* Alternate section background */
.section-alt { background: var(--color-cream); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--color-ink);
  color: var(--color-cream);
  padding-block: var(--space-lg) var(--space-md);
}
.site-footer a { text-decoration: none; color: var(--color-cream); }
.footer-nav { display: flex; flex-direction: column; gap: var(--space-xs); }
.footer-nav a { font-size: 0.85rem; opacity: 0.85; }
.footer-nav a:hover { opacity: 1; color: var(--color-brass); }
.footer-contact a { color: var(--color-brass); }
.nav-wrap { display: flex; align-items: center; gap: var(--space-sm); }
.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-md);
}
.footer-bottom {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(244, 239, 230, 0.15);
  font-size: 0.8rem;
  color: var(--color-steel);
}