/* rio-edu-lab — UX v0.6 — paleta + hero + cards */

:root {
  --rio-teal: #008572;
  --rio-red: #b2182b;
  --rio-blue: #2166ac;
  --rio-gray: #6c757d;
  --rio-bg-soft: #f5f8f7;
}

[data-md-color-scheme="slate"] {
  --rio-bg-soft: rgba(255,255,255,.04);
}

/* ---------- Hero ---------- */

.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  padding: 2rem 0 3rem;
  border-bottom: 1px solid rgba(0,0,0,.06);
  margin-bottom: 2rem;
}

[data-md-color-scheme="slate"] .hero {
  border-bottom-color: rgba(255,255,255,.08);
}

.hero-text h1 {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 1rem;
}

.hero-text h1 .accent-red { color: var(--rio-red); }
.hero-text h1 .accent-blue { color: var(--rio-blue); }

.hero-text blockquote {
  border: none;
  padding: 0;
  margin: 0 0 1.4rem;
  color: var(--rio-gray);
  font-size: 1.05rem;
  font-style: normal;
}

.hero-text .md-button { margin: 0 .5rem .5rem 0; }

.hero-viz {
  background: var(--rio-bg-soft);
  border-radius: 12px;
  padding: 1rem;
  min-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-viz img { max-width: 100%; border-radius: 8px; }

@media (max-width: 800px) {
  .hero { grid-template-columns: 1fr; gap: 1.2rem; }
  .hero-text h1 { font-size: 1.6rem; }
  .hero-viz { min-height: 280px; }
}

/* ---------- Paper-replication badges ---------- */

.papers-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 2rem;
}

.paper-badge {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: .9rem 1rem;
  background: var(--rio-bg-soft);
  border-left: 4px solid var(--rio-teal);
  border-radius: 4px;
  text-decoration: none !important;
  color: inherit;
  transition: transform .15s ease, box-shadow .15s ease;
}

.paper-badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(0,0,0,.08);
}

.paper-badge .paper-icon { font-size: 1.4rem; line-height: 1; }
.paper-badge .paper-title { font-weight: 600; font-size: .95rem; color: var(--rio-teal); }
.paper-badge .paper-cite { font-size: .8rem; color: var(--rio-gray); }

/* ---------- Tour slides ---------- */

.tour-slide {
  padding: 2rem 0;
  scroll-margin-top: 4rem;
}

.tour-slide + .tour-slide {
  border-top: 1px dashed rgba(0,0,0,.08);
}

[data-md-color-scheme="slate"] .tour-slide + .tour-slide {
  border-top-color: rgba(255,255,255,.1);
}

.tour-slide-num {
  display: inline-block;
  width: 2.2rem;
  height: 2.2rem;
  line-height: 2.2rem;
  text-align: center;
  border-radius: 50%;
  background: var(--rio-teal);
  color: white;
  font-weight: 700;
  margin-right: .5rem;
}

.tour-next {
  display: inline-block;
  margin-top: 1rem;
  font-weight: 600;
  text-decoration: none;
}

/* ---------- Plotly chart containers ---------- */

[data-chart] {
  width: 100%;
  min-height: 360px;
  border-radius: 8px;
  background: var(--rio-bg-soft);
  margin: 1rem 0;
}

[data-chart][data-loading="true"]::before {
  content: "carregando…";
  display: block;
  text-align: center;
  padding-top: 160px;
  color: var(--rio-gray);
  font-size: .9rem;
}

/* ---------- Comparison side-by-side (Fio B / paper-replication) ---------- */

.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.compare-grid > div {
  background: var(--rio-bg-soft);
  padding: 1.25rem;
  border-radius: 10px;
  border-top: 4px solid var(--rio-gray);
}

.compare-grid .compare-paper { border-top-color: var(--rio-blue); }
.compare-grid .compare-rio { border-top-color: var(--rio-red); }

.compare-grid h3 {
  margin-top: 0;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--rio-gray);
}

@media (max-width: 800px) {
  .compare-grid { grid-template-columns: 1fr; }
}

/* ---------- Iframe lazy mapa ---------- */

.lazy-iframe-wrap {
  position: relative;
  padding-bottom: 70%;
  height: 0;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,.1);
  margin: 1.5rem 0;
}

.lazy-iframe-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ---------- Priority list ---------- */

.priority-row {
  display: grid;
  grid-template-columns: 2.5rem 1fr auto;
  align-items: center;
  gap: .75rem;
  padding: .55rem 0;
  border-bottom: 1px solid rgba(0,0,0,.05);
}

.priority-rank {
  text-align: right;
  color: var(--rio-gray);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.priority-score {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .85rem;
  color: var(--rio-red);
}