@font-face {
  font-family: 'SourceSans3';
  src: url('/assets/fonts/SourceSans3-Black.ttf') format('truetype');
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}
:root {
  --bg: #ffffff;
  --soft: #f1f3f5;
  --border: rgba(15, 23, 42, 0.08);
  --text: #0f172a;
  --muted: #64748b;
  --primary: #f97316;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.04);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }

header.site { border-bottom: 1px solid var(--border); background: white; }
.header-inner {
  max-width: 1200px; margin: 0 auto; padding: 18px 32px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark { width: 32px; height: 32px; object-fit: contain; display: block; }
.brand-name {
  font-family: 'SourceSans3', 'Inter', sans-serif;
  font-weight: 900; letter-spacing: 0.06em; text-transform: uppercase; font-size: 16px;
}
.header-actions { display: flex; align-items: center; gap: 24px; }
.header-link { font-size: 14px; font-weight: 500; transition: opacity 0.2s ease; }
.header-link:hover { opacity: 0.7; }
.header-cta {
  background: #0f172a; color: white; padding: 10px 18px;
  border-radius: 10px; font-size: 14px; font-weight: 600;
  transition: transform 0.2s ease, filter 0.2s ease;
}
.header-cta:hover { transform: translateY(-1px); filter: brightness(1.1); }

.topbar { background: var(--soft); padding: 36px 0 56px; }
.topbar-inner { max-width: 1140px; margin: 0 auto; padding: 0 32px; }
.topbar-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; margin-bottom: 32px;
}
.breadcrumb {
  font-size: 14px; color: var(--muted);
  display: inline-flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.breadcrumb a { color: var(--muted); transition: color 0.2s ease; }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb .current {
  color: var(--text); font-weight: 500;
  display: inline-flex; align-items: center; gap: 6px;
}
.topbar-search { position: relative; width: 320px; max-width: 100%; }
.topbar-search input {
  width: 100%; height: 44px; border-radius: 999px;
  border: 1px solid transparent; padding: 0 18px 0 44px;
  font-size: 14px; font-family: inherit; background: white; color: var(--text);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04); outline: none;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}
.topbar-search input:focus {
  border-color: rgba(15, 23, 42, 0.12);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.08);
}
.topbar-search svg {
  position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: #94a3b8;
}
.topbar h1 {
  margin: 0 0 6px;
  font-size: clamp(28px, 3.6vw, 36px);
  font-weight: 800; letter-spacing: -0.02em;
  display: flex; align-items: center; gap: 14px;
}
.topbar h1 .icon { font-size: 32px; }
.topbar p { margin: 0; color: var(--muted); font-size: 15px; }

main { max-width: 1140px; margin: 0 auto; padding: 64px 32px 80px; }
.columns { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.col h3 { margin: 0 0 20px; font-size: 18px; font-weight: 700; }
.article-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 18px; }
.article-list a {
  display: inline-flex; align-items: flex-start; gap: 10px;
  font-size: 15px; color: var(--text); transition: color 0.2s ease; line-height: 1.5;
}
.article-list a:hover { color: var(--primary); }
.article-list .em { flex-shrink: 0; font-size: 17px; line-height: 1.4; }
.show-more {
  display: inline-block; margin-top: 24px;
  font-size: 14px; color: var(--muted); font-weight: 500;
  transition: color 0.2s ease;
}
.show-more:hover { color: var(--primary); }

footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px; text-align: center;
  color: var(--muted); font-size: 13px;
}
footer a { color: var(--text); font-weight: 500; }
footer a:hover { color: var(--primary); }

@media (max-width: 760px) {
  .header-inner { padding: 14px 20px; }
  .header-link { display: none; }
  .topbar-row { flex-direction: column; align-items: flex-start; }
  .topbar-search { width: 100%; }
  .topbar-inner, main { padding-left: 20px; padding-right: 20px; }
  .columns { grid-template-columns: 1fr; gap: 40px; }
  main { padding-top: 40px; padding-bottom: 56px; }
}