:root {
  color-scheme: dark;
  --bg: #0a0a0b; --panel: #141416; --panel-2: #1b1b1e;
  --line: #2c2c2f; --text: #f4f4f5; --text-2: #c2c2c6; --muted: #8a8a8f;
  --accent: #ef2b2b; --accent-2: #ff5c5c;
}
* { box-sizing: border-box; min-width: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: var(--accent-2); }

.app-shell { display: flex; align-items: flex-start; min-height: 100vh; position: relative; }
.sidebar {
  width: 250px; flex-shrink: 0; background: var(--panel); border-right: 1px solid var(--line);
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
  transition: width .18s ease, margin-left .18s ease;
}
.sidebar.collapsed { width: 0; margin-left: -250px; }
.sidebar-inner { width: 250px; padding: 18px 12px 30px; }
.side-section-label {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 10.5px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted);
  font-weight: 700; padding: 6px 10px 6px;
}
.side-section-label.sub { margin-top: 12px; border-top: 1px solid var(--line); padding-top: 14px; }
.side-onto-list { display: flex; flex-direction: column; gap: 2px; }
.side-onto {
  display: block; padding: 8px 10px; border-radius: 8px; text-decoration: none;
  color: var(--text-2); border: 1px solid transparent;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.side-onto:hover { background: var(--panel-2); }
.side-onto b { display: block; font-size: 12.5px; color: var(--text); font-weight: 650; }
.side-onto span { display: block; font-size: 10.5px; color: var(--muted); margin-top: 1px; }
.side-onto.active-onto { background: rgba(239,43,43,.13); border-color: rgba(239,43,43,.35); }
.side-onto.active-onto b { color: var(--accent-2); }
.side-onto.soon { opacity: .55; }
.side-onto.soon:hover { opacity: .85; }
.side-onto.soon b::after { content: " · pronto"; font-size: 9px; color: var(--muted); font-weight: 400; text-transform: uppercase; letter-spacing: .04em; }
.sidebar-backdrop { display: none; }
.content-col { flex: 1; min-width: 0; }
.sidebar-toggle {
  font-size: 15px; padding: 6px 10px; background: transparent; border: 1px solid var(--line);
  color: var(--text-2); border-radius: 6px; cursor: pointer;
}

header.site {
  padding: 16px 20px; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  position: sticky; top: 0; background: rgba(17,18,20,.92); backdrop-filter: blur(6px); z-index: 10;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
header.site .brand { font-weight: 800; text-decoration: none; color: var(--text); font-size: 15px; letter-spacing: .02em; }
header.site nav { display: flex; gap: 14px; flex-wrap: wrap; font-size: 13.5px; margin-left: auto; }
header.site nav a { color: var(--text-2); text-decoration: none; }
header.site nav a:hover, header.site nav a.active { color: var(--accent-2); }

@media (max-width: 860px) {
  .sidebar { position: fixed; top: 0; left: 0; z-index: 30; box-shadow: 0 0 40px rgba(0,0,0,.5); }
  .sidebar.collapsed { width: 250px; margin-left: -250px; }
  body.sidebar-open .sidebar-backdrop {
    display: block; position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 25;
  }
}

main { max-width: 880px; margin: 0 auto; padding: 28px 18px 60px; }
h1 { font-size: clamp(26px, 5.5vw, 38px); margin: 0 0 8px; font-weight: 700; letter-spacing: -.02em; }
h2 { font-size: 18px; margin: 28px 0 10px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
p.lead { color: var(--text-2); font-size: 15.5px; max-width: 58ch; }
.crumbs {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 12.5px; color: var(--muted); margin-bottom: 14px;
}
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--accent-2); }

.hub-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin-top: 22px; }
.hub-card {
  display: block; background: linear-gradient(160deg, #1a1214 0%, var(--panel) 55%);
  border: 1px solid var(--line); border-radius: 4px; padding: 18px 16px;
  text-decoration: none; color: inherit; transition: border-color .15s, transform .15s;
}
.hub-card:hover { border-color: rgba(239,43,43,.45); transform: translateY(-2px); }
.hub-card .hub-kicker {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: var(--accent-2); font-weight: 700;
}
.hub-card h3 { margin: 8px 0 6px; font-size: 18px; color: var(--text); }
.hub-card p { margin: 0; font-size: 13px; color: var(--muted); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }

.cat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; margin-top: 18px; }
.cat-card {
  display: block; background: var(--panel); border: 1px solid var(--line); border-radius: 4px;
  padding: 16px; text-decoration: none; color: inherit; transition: border-color .15s, transform .15s;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.cat-card:hover { border-color: #454a54; transform: translateY(-2px); }
.cat-card .icon { font-size: 24px; }
.cat-card h3 { margin: 8px 0 4px; font-size: 15px; color: var(--text); }
.cat-card p { margin: 0; font-size: 12.5px; color: var(--muted); }
.cat-card.soon { opacity: .55; }
.char-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-top: 18px; }
.char-card {
  display: block; background: var(--panel); border: 1px solid var(--line); border-radius: 4px;
  padding: 16px 12px; text-decoration: none; color: inherit; text-align: center;
  transition: border-color .15s, transform .15s;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.char-card:hover { border-color: #454a54; transform: translateY(-2px); }
.char-img-wrap { width: 74px; height: 74px; margin: 0 auto 10px; display: flex; align-items: center; justify-content: center; }
.char-img { width: 100%; height: auto; display: block; filter: url(#sismico-wave) drop-shadow(0 0 18px rgba(239,43,43,.18)); animation: hero-breathe 7s ease-in-out infinite; }
.char-placeholder { width: 100%; height: 100%; border-radius: 50%; background: var(--panel-2); border: 1px dashed var(--line); display: flex; align-items: center; justify-content: center; font-size: 26px; opacity: .6; }
.char-card h3 { margin: 0 0 2px; font-size: 13.5px; color: var(--text); }
.char-card p { margin: 0; font-size: 11px; color: var(--muted); }
.char-card.soon { opacity: .6; }
.char-card.soon:hover { opacity: .9; }
.char-card.soon h3::after { content: " · pronto"; font-size: 9px; color: var(--muted); font-weight: 400; text-transform: uppercase; letter-spacing: .04em; }
.concept-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; margin-top: 14px; }
.concept-card {
  display: block; background: var(--panel); border: 1px solid var(--line); border-radius: 4px;
  padding: 12px 14px; text-decoration: none; color: inherit; font-size: 13.5px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.concept-card:hover { border-color: #454a54; }
.concept-card.soon { opacity: .55; }
.concept-card b { display: block; color: var(--text); font-size: 14px; margin-bottom: 2px; }
.concept-card span { color: var(--muted); font-size: 12px; }
table.props { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 13.5px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
table.props th, table.props td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); }
table.props th { color: var(--muted); font-weight: 600; width: 40%; }
.relations { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
.relation-group { font-size: 13.5px; }
.relation-group .pred { color: var(--muted); margin-right: 6px; }
.relation-group a { margin-right: 10px; }
.pill {
  display: inline-block; font-size: 11px; color: var(--muted); border: 1px solid var(--line);
  border-radius: 2px; padding: 2px 9px; margin-bottom: 8px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
footer.site {
  max-width: 880px; margin: 0 auto; padding: 20px 18px 50px; color: var(--muted); font-size: 12px;
  border-top: 1px solid var(--line);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
footer.site a { color: var(--muted); }

.home-hero {
  padding: 36px 0 10px;
  background:
    radial-gradient(ellipse 80% 60% at 20% 0%, rgba(239,43,43,.14), transparent 55%),
    radial-gradient(ellipse 60% 50% at 90% 30%, rgba(80,40,40,.25), transparent 50%);
  margin: -28px -18px 0; padding-left: 18px; padding-right: 18px; padding-bottom: 8px;
}
.home-brand {
  font-size: clamp(34px, 8vw, 56px); margin: 0 0 10px; font-weight: 800;
  letter-spacing: -.03em; line-height: 1.05;
}
.home-tagline { color: var(--text-2); font-size: clamp(15px, 2.8vw, 18px); max-width: 36ch; margin: 0 0 8px; }
.home-sub { color: var(--muted); font-size: 13.5px; max-width: 48ch; margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }

.hero { text-align: center; padding: 18px 0 6px; }
.hero-img-wrap { width: min(280px, 60vw); margin: 0 auto; position: relative; }
.hero-img {
  width: 100%; height: auto; display: block; filter: url(#sismico-wave) drop-shadow(0 0 40px rgba(239,43,43,.18));
  animation: hero-breathe 7s ease-in-out infinite;
}
@keyframes hero-breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.015); }
}
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.btn {
  display: inline-block; padding: 9px 16px; border-radius: 2px; text-decoration: none;
  font-size: 13.5px; font-weight: 600; border: 1px solid var(--line);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); font-weight: 700; }
.btn.ghost { color: var(--text-2); }
.split-block {
  display: grid; gap: 18px; margin-top: 20px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
@media (min-width: 700px) { .split-block.two { grid-template-columns: 1fr 1fr; } }
.split-panel { background: var(--panel); border: 1px solid var(--line); border-radius: 4px; padding: 16px; }
.split-panel h3 { margin: 0 0 8px; font-size: 14px; }
.split-panel p { margin: 0; font-size: 13px; color: var(--text-2); }

#graph-wrap { background: var(--panel); border: 1px solid var(--line); border-radius: 4px; overflow: hidden; margin-top: 16px; }
#graph-svg { width: 100%; height: 70vh; min-height: 420px; display: block; touch-action: pan-x pan-y; }
.graph-legend { display: flex; gap: 14px; flex-wrap: wrap; padding: 10px 14px; border-top: 1px solid var(--line); font-size: 12px; color: var(--muted); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
.graph-legend .sw { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 5px; }
table.props th, table.props td { word-break: break-word; }
@media (max-width: 560px) {
  header.site { flex-direction: column; align-items: flex-start; gap: 8px; }
  header.site nav { margin-left: 0; width: 100%; justify-content: flex-start; }
}