/* ── Site Header ── */
.site-header {
  background-color: #161929;
  padding: 0.75rem 2rem;
  border-bottom: 1px solid #2e3250;
}

.site-header-title {
  color: #e8e9f3;
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.03em;
}

/* ── Reset & Base ── */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-feature-settings: 'liga' 1, 'calt' 1; /* Inter's nice ligatures */
  color: #2d2d3a;
  background-color: #fafaf8;
}

/* ── Top Nav: World / India / States ── */
.top-nav {
  display: flex;
  gap: 0;
  background-color: #2e3250;
  padding: 0 2rem;
}

.top-nav a {
  color: #b8bdd6;
  text-decoration: none;
  padding: 1rem 1.5rem;
  display: block;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.top-nav a:hover {
  color: #e8e9f3;
  background-color: #373c5e;
}

.top-nav a.active {
  color: #fff;
  border-bottom: 3px solid #c9a0a0;
}

/* ── Tab Nav: Map / Students / Teachers etc ── */
.tab-nav {
  display: flex;
  gap: 0;
  background-color: #f0eeea;
  border-bottom: 2px solid #ddd9d2;
  padding: 0 2rem;
}

.tab-nav a {
  color: #6b6676;
  text-decoration: none;
  padding: 0.75rem 1.25rem;
  display: block;
  font-size: 0.9rem;
}

.tab-nav a:hover {
  color: #2e3250;
  background-color: #e5e2dc;
}

.tab-nav a.active {
  color: #2e3250;
  font-weight: 600;
  border-bottom: 3px solid #c9a0a0;
}

/* ── Main Content Area ── */
.content {
  padding: 0;
}

/* ── Shiny iframe container ── */
.shiny-embed {
  width: 100%;
  height: calc(100vh - 130px);
  border: none;
  display: block;
}