/* Layout + components. All colors/fonts come from theme tokens (theme.css). */

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-base);
  font-size: 18px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 880px; margin: 0 auto; padding: 0 1.25rem; }

h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--brand-primary); line-height: 1.2; }

a { color: var(--brand-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header / footer */
.site-header { background: var(--surface); border-bottom: 1px solid var(--hairline); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 64px; }
.brand { display: inline-flex; align-items: center; font-family: var(--font-heading); font-weight: 700; font-size: 1.1rem; color: var(--brand-primary); letter-spacing: .2px; }
.brand:hover { text-decoration: none; }
.brand-logo { height: 30px; width: auto; margin-right: .55rem; }
.site-nav a { margin-left: 1.5rem; font-size: .8rem; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); }
.site-nav a:hover { color: var(--brand-primary); text-decoration: none; }
.nav-toggle { display: none; background: none; border: 0; font-size: 1.6rem; line-height: 1; color: var(--brand-primary); cursor: pointer; padding: .15rem .3rem; }
.brand-short { display: none; }
/* Mobile menu: a separate block below the header row (not a flex child), so opening it never shifts the brand row — it drops in underneath. */
.mobile-nav { display: none; border-top: 1px solid var(--hairline); background: var(--surface); }
.mobile-nav .container { display: flex; flex-direction: column; padding-top: .25rem; padding-bottom: .5rem; }
.mobile-nav a { padding: .7rem .25rem; font-size: .8rem; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); border-top: 1px solid var(--hairline); }
.mobile-nav a:first-child { border-top: 0; }
.mobile-nav a:hover { color: var(--brand-primary); text-decoration: none; }
@media (max-width: 900px) {
  .brand-full { display: none; }
  .brand-short { display: inline; }
  .nav-toggle { display: block; }
  .site-nav { display: none; }
  .mobile-nav.open { display: block; }
}
.site-footer { border-top: 1px solid var(--hairline); margin-top: 5rem; padding: 2.5rem 0; }
.site-footer p { color: var(--text-muted); font-size: .8rem; text-align: center; margin: 0; }

/* Connect (contact) band — TES microsite footer CTA */
.connect { background: var(--brand-primary); color: #fff; padding: 3.5rem 0; margin-top: 4rem; }
.connect + .site-footer { margin-top: 0; }
.connect h2 { color: #fff; font-size: 1.8rem; margin: 0 0 .4rem; }
.connect > .container > p { color: rgba(255,255,255,.85); margin: 0 0 1.5rem; max-width: 48ch; }
.connect-form { max-width: 620px; }
.connect-form .cf-row { display: flex; gap: .75rem; }
.connect-form .cf-row input { flex: 1; }
.connect-form input, .connect-form textarea { width: 100%; box-sizing: border-box; padding: .7rem .85rem; margin-bottom: .75rem; border: 0; border-radius: var(--radius); font-family: inherit; font-size: .95rem; background: #fff; color: var(--text); }
.connect-form button { background: #58595b; }
.connect-form button:hover { background: #fff; color: var(--brand-primary); }
/* Start Hiring / Get Hired toggle — mirrors tes.net's CONNECT form */
.connect-form .cf-toggle { display: flex; flex-wrap: wrap; align-items: center; gap: 1.25rem; margin: .25rem 0 1rem; }
.connect-form .cf-toggle label { display: inline-flex; align-items: center; gap: .5rem; width: auto; margin: 0; padding: 0; background: none; color: #fff; font-family: var(--font-heading); font-size: .8rem; font-weight: 600; line-height: 1; text-transform: uppercase; letter-spacing: 1px; cursor: pointer; }
.connect-form .cf-toggle input[type="radio"] { appearance: auto; -webkit-appearance: auto; width: 16px; height: 16px; flex: none; margin: 0; padding: 0; background: none; accent-color: var(--brand-accent); vertical-align: middle; cursor: pointer; }
@media (max-width: 560px) { .connect-form .cf-row { flex-direction: column; gap: 0; } }

/* Hero / page heads */
.hero { padding: 5rem 1.25rem; }
.hero h1 { font-size: 3rem; margin: 0 0 1rem; }
.page-head { padding: 3rem 1.25rem 1rem; }
.page-head h1 { font-size: 2.5rem; margin: 0 0 .5rem; }
.lede { font-size: 1.2rem; color: var(--text-muted); max-width: 46rem; margin: 0 0 1rem; }

/* Buttons */
.btn {
  display: inline-block; padding: .7rem 1.4rem; background: var(--brand-primary); color: #fff;
  border-radius: var(--radius); font-size: .9rem; letter-spacing: .5px; font-family: var(--font-heading);
}
.btn:hover { background: var(--brand-hover); text-decoration: none; }

/* Type badge */
.type-badge {
  display: inline-block; font-family: 'JetBrains Mono', monospace; font-size: .65rem;
  text-transform: uppercase; letter-spacing: 1px; color: var(--brand-accent);
  border: 1px solid var(--hairline); border-radius: var(--radius); padding: .15rem .5rem;
}

/* Filters */
.filters { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 2rem; }
.filter {
  font-family: 'JetBrains Mono', monospace; font-size: .7rem; text-transform: uppercase; letter-spacing: 1px;
  color: var(--text-muted); padding: .4rem .85rem; border: 1px solid var(--hairline); border-radius: 999px;
}
.filter:hover { color: var(--brand-primary); text-decoration: none; }
.filter-active { background: var(--brand-primary); color: #fff; border-color: var(--brand-primary); }

/* Article grid + cards */
.article-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1.25rem; }
.article-card {
  display: block; background: var(--surface); border: 1px solid var(--hairline);
  border-left: 4px solid var(--brand-accent); border-radius: var(--radius); padding: 1.25rem; color: var(--text);
  transition: box-shadow .15s ease, transform .15s ease;
}
.article-card:hover { text-decoration: none; box-shadow: 0 4px 16px rgba(0,0,0,.08); transform: translateY(-2px); }
.article-card h2, .article-card h3 { font-size: 1.15rem; margin: .4rem 0; }
.card-date { font-family: 'JetBrains Mono', monospace; font-size: .7rem; color: var(--text-muted); }
.card-sub { color: var(--text-muted); font-size: .9rem; margin: .25rem 0 .75rem; }
.empty { color: var(--text-muted); }

/* Article detail */
.article { padding-top: 3rem; }
.article-head { margin-bottom: 2.5rem; }
.article-head h1 { font-size: 2.6rem; margin: .5rem 0; }
.pubdate { font-family: 'JetBrains Mono', monospace; font-size: .75rem; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); }
.archived-note { background: #fff8e1; border: 1px solid #f0e0a0; border-radius: var(--radius); padding: .75rem 1rem; font-size: .85rem; margin-bottom: 1.5rem; }

.article-content { font-size: 1.05rem; }
.article-content h2 {
  font-family: 'JetBrains Mono', monospace; font-size: .8rem; font-weight: 500; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 1px; margin: 3rem 0 1.25rem; padding-bottom: .75rem;
  border-bottom: 1px solid var(--hairline);
}
.article-content h2::before { content: "/ "; }
.article-content h3 { font-size: 1.25rem; margin: 2rem 0 .5rem; }
.article-content p { margin: 0 0 1.1rem; }
.article-content ul, .article-content ol { margin: 0 0 1.1rem; padding-left: 1.5rem; }
.article-content li { margin-bottom: .4rem; }
.article-content strong { color: var(--brand-primary); }
.article-content a { font-weight: 500; }

/* Tables */
.article-content table {
  width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: .9rem;
  background: var(--surface); border: 1px solid var(--hairline); border-radius: var(--radius); overflow: hidden;
}
.article-content thead { background: var(--bg); }
.article-content th {
  font-family: 'JetBrains Mono', monospace; font-size: .7rem; text-transform: uppercase; letter-spacing: .5px;
  color: var(--text-muted); text-align: left; padding: .65rem .75rem; border-bottom: 2px solid var(--hairline);
}
.article-content td { padding: .65rem .75rem; border-bottom: 1px solid var(--hairline); color: var(--text); }
.article-content tbody tr:hover { background: var(--bg); }

/* Charts */
.chart-container {
  max-width: 100%; margin: 1.5rem 0; background: var(--surface); border: 1px solid var(--hairline);
  border-radius: var(--radius); padding: 1.5rem;
}
.article-content canvas[data-chart-config] { width: 100% !important; max-height: 400px; min-height: 250px; }

/* Related */
.related { margin-top: 4rem; }
.related-head { font-size: 1.4rem; margin-bottom: 1.25rem; }

@media (max-width: 640px) {
  body { font-size: 16px; }
  .hero h1 { font-size: 2.2rem; }
  .article-head h1 { font-size: 2rem; }
  .article-content .hide-mobile { display: none; }
}