:root {
  --page-bg: #e7e4d9;
  --page-surface: rgba(255, 252, 247, 0.7);
  --page-surface-strong: rgba(255, 255, 255, 0.85);
  --page-border: rgba(31, 47, 43, 0.15);
  --page-text: #1f2f2b;
  --page-muted: rgba(31, 47, 43, 0.75);
  --page-accent: #c07a4b;
  --page-accent-strong: #a35f34;
  --page-shadow: rgba(19, 28, 26, 0.1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --page-bg: #0f1714;
    --page-surface: rgba(26, 36, 33, 0.6);
    --page-surface-strong: rgba(39, 56, 51, 0.8);
    --page-border: rgba(166, 184, 154, 0.2);
    --page-text: #f4f7f2;
    --page-muted: rgba(220, 229, 214, 0.7);
    --page-accent: #e09460;
    --page-accent-strong: #f6a670;
    --page-shadow: rgba(0, 0, 0, 0.4);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  background: radial-gradient(circle at top right, rgba(192, 122, 75, 0.15), transparent 40%), linear-gradient(180deg, var(--page-bg) 0%, color-mix(in srgb, var(--page-bg) 90%, black) 100%);
  color: var(--page-text);
  line-height: 1.7;
}
a { color: inherit; }
.page-shell { width: min(1200px, calc(100% - 2rem)); margin: 0 auto; padding: 2rem 0 5rem; }
.topbar { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center; margin-bottom: 2rem; padding: 1rem 1.5rem; border-radius: 999px; background: var(--page-surface); backdrop-filter: blur(24px); border: 1px solid var(--page-border); box-shadow: 0 8px 32px var(--page-shadow); }
.brandline { display: inline-flex; align-items: center; gap: 0.8rem; font-size: 0.95rem; font-weight: 600; color: var(--page-text); }
.branddot { width: 0.8rem; height: 0.8rem; border-radius: 999px; background: linear-gradient(135deg, var(--page-accent), var(--page-accent-strong)); box-shadow: 0 0 12px var(--page-accent); }
.navlinks { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.navlinks a, .button-link, .ghost-link { text-decoration: none; }
.navlinks a, .ghost-link { border: 1px solid transparent; color: var(--page-muted); padding: 0.6rem 1.2rem; font-size: 0.9rem; font-weight: 500; border-radius: 999px; transition: all 0.2s ease; }
.navlinks a:hover, .ghost-link:hover { color: var(--page-text); background: rgba(255,255,255,0.1); border-color: var(--page-border); }
.hero, .panel, .directory-card, .sidebar-card { border: 1px solid var(--page-border); background: var(--page-surface); box-shadow: 0 24px 80px var(--page-shadow); backdrop-filter: blur(24px); }
.hero { border-radius: 2.5rem; overflow: hidden; position: relative; }
.hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 100%); pointer-events: none; }
.hero-grid { display: grid; gap: 0; }
.hero-copy { padding: 3rem; }
.hero-copy.compact { padding: 2.5rem; }
.eyebrow { margin: 0 0 1rem; font-size: 0.85rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.2em; color: var(--page-accent); }
.hero h1, .panel h2, .directory-card h2, .content-block h2, .content-block h3 { margin: 0; line-height: 1.15; font-family: "Inter", sans-serif; font-weight: 800; letter-spacing: -0.02em; }
.hero h1 { font-size: clamp(2.5rem, 5vw, 4rem); background: linear-gradient(135deg, var(--page-text) 0%, var(--page-muted) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.lede { margin: 1.2rem 0 0; font-size: 1.15rem; color: var(--page-muted); max-width: 600px; }
.summary-list, .stack-list, .link-list, .meta-grid, .directory-grid { display: grid; gap: 1rem; }
.summary-list { margin-top: 2rem; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.meta-grid { margin-top: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
.meta-card, .stack-chip, .tag-chip { border: 1px solid var(--page-border); background: rgba(255, 255, 255, 0.05); border-radius: 1rem; backdrop-filter: blur(8px); }
.meta-card { padding: 1.2rem; transition: transform 0.2s ease; }
.meta-card:hover { transform: translateY(-2px); background: rgba(255, 255, 255, 0.1); }
.meta-label { display: block; margin-bottom: 0.4rem; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.15em; color: var(--page-muted); }
.meta-value { font-weight: 700; font-size: 1.05rem; }
.action-row { margin-top: 2.5rem; display: flex; flex-wrap: wrap; gap: 1rem; }
.button-link { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; min-height: 3.5rem; padding: 0 2rem; border-radius: 999px; border: 1px solid transparent; background: linear-gradient(135deg, var(--page-accent), var(--page-accent-strong)); color: #fff; font-weight: 600; font-size: 1rem; box-shadow: 0 8px 24px rgba(192, 122, 75, 0.3); transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
.button-link:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(192, 122, 75, 0.4); }
.button-link.secondary { background: var(--page-surface-strong); color: var(--page-text); border-color: var(--page-border); box-shadow: none; }
.button-link.secondary:hover { background: rgba(255,255,255,0.1); box-shadow: 0 8px 24px var(--page-shadow); }
.layout { display: grid; gap: 1.5rem; margin-top: 1.5rem; }
.panel { border-radius: 2rem; padding: 2rem; }
.panel h2 { font-size: 1.6rem; margin-bottom: 1rem; }
.content-block + .content-block { margin-top: 2rem; padding-top: 2rem; border-top: 1px solid var(--page-border); }
.content-block h3 { font-size: 1.2rem; margin-bottom: 0.8rem; }
.content-block p, .directory-card p, .sidebar-card p, .resource-line { margin: 0; color: var(--page-muted); font-size: 1.05rem; }
.stack-list { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
.stack-chip, .tag-chip { padding: 0.8rem 1.2rem; font-size: 0.9rem; font-weight: 500; color: var(--page-text); display: inline-flex; justify-content: center; align-items: center; }
.tag-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.link-list { margin-top: 1.5rem; }
.resource-line { display: flex; align-items: center; justify-content: space-between; gap: 1rem; border: 1px solid var(--page-border); background: var(--page-surface); border-radius: 1.5rem; padding: 1rem 1.5rem; transition: transform 0.2s; }
.resource-line:hover { transform: translateX(4px); }
.resource-line strong { display: block; color: var(--page-text); font-size: 1.1rem; }
.directory-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.directory-card { border-radius: 2rem; padding: 2rem; transition: transform 0.3s ease; }
.directory-card:hover { transform: translateY(-4px); }
.directory-card h2 { font-size: 1.5rem; margin-bottom: 1rem; }
.directory-card .tag-row { margin: 1.5rem 0; }
.directory-card .actions-inline { display: flex; flex-wrap: wrap; gap: 0.8rem; }
.sidebar-card { border-radius: 2.5rem; padding: 2.5rem; background: var(--page-surface-strong); }
.embedded-tool { margin-top: 2rem; border-radius: 1.5rem; overflow: hidden; border: 1px solid var(--page-border); box-shadow: 0 24px 80px var(--page-shadow); }
.embedded-tool iframe { display: block; width: 100%; min-height: 80vh; border: 0; background: #000; }
.tiny-note, .footer-note { color: var(--page-muted); font-size: 0.9rem; }
.tiny-note { margin-top: 1.5rem; padding: 1rem; background: rgba(0,0,0,0.03); border-radius: 1rem; }
.footer-note { margin-top: 3rem; text-align: center; }
.list-grid { display: grid; gap: 1rem; margin-top: 1.5rem; }
.list-grid a { color: var(--page-text); text-decoration: none; font-weight: 500; display: inline-flex; align-items: center; gap: 0.5rem; }
.list-grid a::before { content: '→'; color: var(--page-accent); transition: transform 0.2s; }
.list-grid a:hover::before { transform: translateX(4px); }
@media (min-width: 1024px) {
  .hero-grid.project { grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr); }
  .hero-grid.directory { grid-template-columns: minmax(0, 1fr) minmax(320px, 0.8fr); }
  .layout.project { grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr); align-items: start; }
  .layout.lab { grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr); align-items: start; }
}
@media (max-width: 768px) {
  .page-shell { padding: 1rem 0; }
  .hero-copy, .hero-copy.compact, .panel, .directory-card, .sidebar-card { padding: 1.5rem; }
  .hero { border-radius: 1.5rem; }
  .resource-line { flex-direction: column; align-items: flex-start; }
  .embedded-tool iframe { min-height: 70vh; }
}