:root {

    /* colors used in several places in the getting started section to identify datatypes
       obtained from https://colorbrewer2.org/#type=qualitative&scheme=Paired&n=12
    */

    --mri: #a6cee3;
    --pet: #1f78b4;
    --micr: #33a02c;
    --meeg: #6a3d9a;
    --beh: #fb9a99;
    --nirs: #b2df8a;
    --motion: #e31a1c;
    --mrs: #fdbf6f;
    --unused2: #ff7f00;
    --unused3: #cab2d6;
    --unused4: #ffff99;
    --unused5: #b15928;
    --key: #e41a1c;
    --label: #377eb8;
    --suffix: #4daf4a;
    --ext: #984ea3;
    --underscore: #ff7f00;

  --bids-brand: #1F7293;
  --bids-accent: #6b9aaa;
  --bids-stats-bg: #1f8193fb;
  --white: #ffffff;

  /* Material Design variable overrides (keep so top tabs/header use brand) */
  --md-primary-fg-color: #1F7293;
  --md-primary-fg-color--light: #1F7293;
  --md-primary-fg-color--dark: #1F7293;
  --md-accent-fg-color: #1F7293;
  --md-accent-fg-color--transparent: rgba(212, 123, 138, 0.1);
  --md-default-fg-color: #111;
  --content-max: 1200px;


}

/* Basic */
p { text-align: justify; }

/* iframe helper */
.iframe-container {
    position: relative;
    width: 90%;
    margin: 0 5%;
    padding-bottom: 56.25%;
    height: 0;
}
.iframe-container > iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

/* Hide material footer grid */
.md-footer__inner.md-grid { display: none; }

/* Hero section container */
.mdx-container {
  padding-top: 1rem;
  background: transparent;
  position: relative;
  overflow: visible;
  min-height: 150px;
}

.mdx-container:first-of-type {
  background: linear-gradient(to bottom, var(--bids-brand), transparent 99%);
  overflow: hidden; /* clip logo to container bounds */
}

/* ======= HERO - content + responsive logo ======= */
.mdx-hero {
  margin-top: 4rem;
  color: var(--white);
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  min-height: 150px;
  padding-bottom: clamp(3rem, 6vw, 6rem); /* space to features */
  overflow: hidden; /* keep logo clipped to hero */
}

.mdx-hero__logo-bg {
  position: absolute;
  top: 0;
  height: 100%;  /* always as tall as hero */
  left: 50%;
  transform: translateX(-50%);
  z-index: 0;  /* behind the hero content */
  pointer-events: none;
  width: min(100%, var(--content-max));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0;
}

/* SVG/logo image: fill the wrapper while maintaining aspect ratio */
.mdx-hero__logo-bg img {
  width: 100%;
  height: 100%;
  opacity: 0.2;     /* subtle background watermark */
  object-fit: contain;  /* keeps aspect ratio, fits within container */
  object-position: center left;
  pointer-events: none;
  display: block;
  filter: saturate(.95);
}

/* Small screens: keep the logo large relative to the content column but allow it to overflow a bit to the left
   so it doesn't occlude the text while preserving the same width relationship with the features section. */
@media (max-width: 44.9375em) {
  .mdx-hero__logo-bg {
    /* on small screens, content width is basically 100% - keep full width */
    width: 100%;
    left: 50%;
    transform: translateX(-50%);
    top: 0;
    /* allow a little extra vertical breathing room */
    height: 120%;
  }
  .mdx-hero__logo-bg img { opacity: 0.12; max-height: none; object-position: left center; }
}

/* Mid / tablet screens slight tweaks */
@media (min-width: 60em) and (max-width: 76.24em) {
  .mdx-hero__logo-bg {
    /* match the same max content width, but allow it to exceed slightly to create the "off to the side" feel */
    width: min(100%, var(--content-max));
    right: auto;
    left: 50%;
    transform: translateX(-50%);
  }
  .mdx-hero__logo-bg img { opacity: 0.14; }
}

/* Desktop: keep logo the same width as the content column but subtle and slightly shifted left/right by adjusting object-position */
@media (min-width: 76.25em) {
  .mdx-hero__logo-bg {
    width: min(100%, var(--content-max));
    left: 50%;
    transform: translateX(-50%);
  }
  .mdx-hero__logo-bg img { opacity: 0.10; max-height: none; object-position: center left; }
}

/* Hero content area */
.mdx-hero__content {
  position: relative;
  z-index: 3;
  max-width: 600px;
  padding-left: 0;
  margin-left: 0;
}

/* Hero text - stable sizes to avoid 'stretched' look */
.mdx-hero h1 {
  margin-bottom: 1rem;
  font-weight: 700;
  font-size: 2.5rem;
  line-height: 1.2;
  color: inherit;
}
.mdx-hero__content p {
  margin-bottom: 2rem;
  font-size: 1.125rem;
  opacity: 0.95;
  color: rgba(255,255,255,0.95);
}

/* Buttons */
.mdx-hero__actions { display:flex; gap:1rem; flex-wrap:wrap; }
.mdx-hero__actions .md-button { margin-bottom: 0.5rem; }
.md-button--primary {
  background-color: var(--bids-brand) !important;
  border-color: var(--white) !important;
  color: var(--white) !important;
  font-weight: 500;
}
.md-button--primary:hover { background-color: var(--bids-accent) !important; transform: translateY(-1px); }

/* Ensure header/tabs use brand */
.md-header,
.md-header__inner,
.md-header-nav,
.md-tabs{
  background-color: var(--bids-brand) !important;
  color: var(--white) !important;
}
.md-header a,
.md-tabs a,
.md-header-nav a {
  color: var(--white) !important;
}

/* Features & cards (kept equal-height) */
.mdx-features-section { margin-bottom: 2rem; }
.mdx-features-headline { text-align: center; margin: 0 0 3rem; max-width: 800px; margin-left: auto; margin-right: auto; }
.mdx-features-headline h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); font-weight: 700; color: var(--md-default-fg-color); line-height:1.2; }

.mdx-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 2rem;
  align-items: stretch;
}
.mdx-feature { display:flex; }

.mdx-feature__item {
  box-sizing: border-box;
  display:flex;
  flex-direction:column;
  justify-content: space-between;
  align-items:center;
  text-align:center;
  padding: clamp(1rem, 2vw, 2rem);
  background: var(--bids-brand);
  color: var(--white);
  border-radius: .5rem;
  box-shadow: var(--md-shadow-z1);
  transition: transform .2s, box-shadow .2s;
  flex:1 1 auto;
  min-height: 220px;
  height: auto;
  overflow: visible;
}
.mdx-feature__item:hover { transform: translateY(-0.25rem); box-shadow: var(--md-shadow-z2); }

.mdx-feature__icon { width:3rem; height:3rem; margin-bottom:1rem; flex:0 0 auto; }
.mdx-feature__icon svg { width:100%; height:100%; fill:var(--white); }

.mdx-feature__content { display:flex; flex-direction:column; align-items:center; justify-content:center; width:100%; flex:1 1 auto; }
.mdx-feature__content h2 { margin:0 0 .75rem; font-weight:700; font-size: clamp(1.05rem,2vw,1.25rem); line-height:1.15; color:var(--white); }
.mdx-feature__content p {
  margin:0;
  color: rgba(255,255,255,0.92);
  font-size: clamp(.9rem,1.5vw,1rem);
  line-height:1.35;
  word-break: break-word;
  overflow-wrap:anywhere;
  -webkit-hyphens:auto;
  -ms-hyphens:auto;
  hyphens:auto;
}

/* Stats */
.mdx-stats { display:grid; grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr)); gap:2rem; margin:8rem 0 2rem; text-align:center; }
.mdx-stats__item { background: var(--bids-stats-bg); color: var(--white); padding:2rem; border-radius:.5rem; display:flex; flex-direction:column; justify-content:center; align-items:center; min-height:150px; text-decoration:none; transition: all .3s ease; }
.mdx-stats__item:hover { transform: translateY(-4px); box-shadow: 0 8px 16px rgba(0,0,0,.2); background: var(--bids-accent); }
.mdx-stats__number { font-weight:700; font-size:2rem; line-height:1.2; color: var(--white) !important; }
.mdx-stats__label { font-size:.875rem; color: rgba(255,255,255,.9); }

/* Sponsors */
.mdx-sponsors { background: var(--bids-brand); padding: .5rem 0 3rem; }
.mdx-sponsors__content { text-align:center; max-width:1200px; margin:0 auto; padding:0 2rem; }
.mdx-sponsors__content h2 { margin-bottom:2rem; font-weight:700; font-size:clamp(1.25rem,2.5vw,2rem); color:var(--white); }
.mdx-sponsors__grid { display:flex; justify-content:center; align-items:center; gap:1.5rem; flex-wrap:wrap; }
.mdx-sponsors__item { display:flex; align-items:center; justify-content:center; padding:1.5rem; background:var(--white); border-radius:.5rem; box-shadow:0 2px 8px rgba(0,0,0,.1); transition:all .3s ease; width:200px; height:120px; border:1px solid #eee; }
.mdx-sponsors__item img { max-width:180px; max-height:80px; object-fit:contain; filter:grayscale(100%) opacity(.7); transition:filter .3s; }
.mdx-sponsors__item:hover img { filter:none; opacity:1; }
.mdx-sponsors__item:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0,0,0,.15); }

/* Responsive adjustments grouped */
@media (max-width: 44.9375em) {
  .mdx-hero h1 { font-size: 2rem; }
  .mdx-hero__actions .md-button { width:100%; }
  .mdx-features { grid-template-columns: 1fr; gap: 1.5rem; }
  .mdx-features-headline h2 { font-size: 2rem; }
  .mdx-stats { grid-template-columns: 1fr; gap: 1rem; margin: 4rem 0 1rem; }
  .mdx-stats__item { min-height: 120px; }
  .mdx-sponsors { padding: 3rem 0; }
  .mdx-sponsors__grid { gap: 1.5rem; }
  .mdx-sponsors__item { height: 100px; width: auto; }
  .mdx-sponsors__item img { max-width: 140px; max-height:60px; }
}

/* Minimal theme overrides left as !important where required */
.md-button--primary { background-color: var(--bids-brand) !important; border-color: var(--white) !important; color: var(--white) !important; }