/* Shared layout overrides for the original Clean Blog dashboard. */
:root {
  --nav-height: 72px;
  --ink: #212529;
  --accent: #00697f;
}

body {
  padding-top: var(--nav-height);
  color: var(--ink);
}

#mainNav,
#mainNav.is-fixed,
#mainNav.is-visible {
  position: fixed;
  inset: 0 0 auto;
  min-height: var(--nav-height);
  background: transparent;
  border: 0;
  transform: none;
  transition: none;
  z-index: 1030;
}

#mainNav .navbar-brand,
#mainNav .navbar-nav > li.nav-item > a {
  color: var(--nav-ink, var(--ink));
  padding: 10px 12px;
  transition: none;
}

#mainNav .navbar-brand {
  padding-left: 0;
}

#mainNav .navbar-brand:hover,
#mainNav .navbar-brand:focus,
#mainNav .navbar-nav > li.nav-item > a:hover,
#mainNav .navbar-nav > li.nav-item > a:focus,
#mainNav .navbar-brand[aria-current="page"],
#mainNav .navbar-nav > li.nav-item > a[aria-current="page"] {
  color: var(--nav-accent, var(--accent));
}

#mainNav [aria-current="page"] { text-decoration: none; }

#mainNav .nav-over-photo {
  --nav-ink: #fff;
  --nav-accent: #8edcf1;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

#mainNav .navbar-toggler {
  color: var(--nav-ink, var(--ink));
  border-color: currentColor;
  background: transparent;
  font-size: 13px;
}

.page-header {
  padding: clamp(64px, 8vw, 120px) 0;
  text-align: center;
  color: var(--ink);
}

.page-header h1,
header.masthead .site-heading h1 {
  font-size: clamp(32px, 4.5vw, 64px);
  line-height: 1.15;
  margin: 0;
}

.page-header p {
  font-family: 'Open Sans', Helvetica, Arial, sans-serif;
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 700;
  margin: 16px 0 0;
}

header.masthead {
  margin: 0;
  background: none;
}

header.masthead .site-heading {
  padding: clamp(64px, 8vw, 120px) 0;
  color: var(--ink);
}

header.masthead .site-heading .subheading {
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.5;
}

div[class^="bcont"] {
  position: relative;
  isolation: isolate;
  width: auto;
  height: auto;
}

/* Keep the existing photos and give white text a readable fallback. */
.bcont, .bcont1, .bcont2, .bcont3, .bcont4, .bcont5, .bcont6, .bcont7,
.bcont8, .bcont9, .bcont10, .bcont11, .bcont12, .bcontp, .bcontt {
  background-color: #243640;
}

:is(.bcont, .bcont1, .bcont2, .bcont3, .bcont4, .bcont5, .bcont6, .bcont7,
  .bcont8, .bcont9, .bcont10, .bcont11, .bcont12, .bcontp, .bcontt)
  header.masthead .site-heading {
  color: #fff;
}

div.bcont::before { background-image: url('../img/home-barcelona.jpg'); }
div.bcont1::before { background-image: url('../img/auto-innovative-washington.jpg'); background-position: center; }
div.bcont5::before { background-image: url('../img/congested-boomer.jpg'); }
div.bcontp::before { background-image: url('../img/profiles-background.jpg'); }
div.bcontt::before { background-image: url('../img/mit-campus.jpg'); }

/* Photo headers extend behind the transparent navigation. */
body.photo-header { padding-top: 0; }
body.photo-header > [data-nav-theme="light"]:first-of-type .site-heading {
  padding-top: calc(clamp(64px, 8vw, 120px) + var(--nav-height));
}

.bcontt + .team { padding-top: clamp(48px, 6vw, 80px); }

.photo-credit {
  display: block;
  margin-top: 24px;
  font: 12px/1.5 'Open Sans', Helvetica, Arial, sans-serif;
}
.photo-credit a { color: inherit; text-decoration: underline; }

.resource-section .site-heading {
  padding: 24px 0 40px;
}

.visualization-section {
  max-width: 1800px;
  margin: 0 auto 48px;
}

/* The factor-loading chart needs the original full-width 4:3 layout. */
.factors-visualization { max-width: none; }

.tableauPlaceholder {
  position: relative;
  width: 100%;
  max-width: 100%;
}

.tableauPlaceholder iframe,
.tableauPlaceholder object {
  max-width: 100%;
}

#map {
  width: 100%;
  height: clamp(420px, 65vh, 800px);
  background: #e8eef0;
}

.map-section { margin-bottom: 40px; }

@media (max-width: 991.98px) {
  #mainNav .navbar-collapse {
    max-height: calc(100vh - var(--nav-height));
    overflow-y: auto;
  }

  #mainNav .navbar-nav {
    padding: 10px 0;
  }

  #mainNav .navbar-nav > li.nav-item > a {
    padding: 12px 0;
  }

  #mainNav .navbar-collapse.show {
    background: rgba(255, 255, 255, .97);
    padding: 0 20px;
    border-radius: 4px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, .15);
  }

  .leaflet-control.legend {
    max-width: 180px;
    max-height: 190px;
    overflow-y: auto;
    font-size: 10px !important;
  }
}