/* [REDACTED] brand colors, sampled from the lab logo:
     navy      #1b4f72  (the "o", "d", "a" letterforms)
     sky blue  #8fc2d7  (the "n" and its echo)
   The accent used for links/hover is a deepened variant of the sky blue —
   the literal brand hex fails WCAG contrast as small text on white. */

[data-md-color-scheme="default"] {
  --md-primary-fg-color:         #1b4f72;
  --md-primary-fg-color--light:  #3b7ea3;
  --md-primary-fg-color--dark:   #123a54;
  --md-primary-bg-color:         #ffffff;
  --md-primary-bg-color--light:  #ffffff;

  --md-accent-fg-color:              #14688f;
  --md-accent-fg-color--transparent: #14688f1a;
  --md-accent-bg-color:              #ffffff;
  --md-accent-bg-color--light:       #ffffff;

  --md-typeset-a-color: #14688f;
}

[data-md-color-scheme="slate"] {
  --md-primary-fg-color:         #1b4f72;
  --md-primary-fg-color--light:  #3b7ea3;
  --md-primary-fg-color--dark:   #0d2c40;
  --md-primary-bg-color:         #ffffff;
  --md-primary-bg-color--light:  #ffffff;

  --md-accent-fg-color:              #8fc2d7;
  --md-accent-fg-color--transparent: #8fc2d71a;
  --md-accent-bg-color:              #0d2c40;
  --md-accent-bg-color--light:       #0d2c40;

  --md-typeset-a-color: #8fc2d7;
}

/* homepage hero */
.hero {
  position: relative;
  overflow: hidden;
  margin: 1.5em 0 2em;
  padding: 2.75em 2em;
  border-radius: 0.5rem;
  background: linear-gradient(135deg, #1b4f72 0%, #14688f 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("../assets/eeg-wave.svg");
  background-repeat: repeat-x;
  background-size: 420px 100%;
  opacity: 0.35;
  pointer-events: none;
}

.hero > * {
  position: relative;
}

.hero h1 {
  margin-top: 0;
  color: #ffffff;
}

.hero p {
  color: #e7f1f7;
  font-size: 1.05em;
  max-width: 42em;
}

.hero .md-button {
  margin: 0.3em 0.5em 0 0;
}

.hero .md-button--primary {
  background-color: #ffffff;
  border-color: #ffffff;
  color: #1b4f72;
}

.hero .md-button--primary:hover {
  background-color: #e7f1f7;
  border-color: #e7f1f7;
}

.hero .md-button:not(.md-button--primary) {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.6);
}

.hero .md-button:not(.md-button--primary):hover {
  background-color: rgba(255, 255, 255, 0.12);
  border-color: #ffffff;
}

/* hero result gallery - real figures from the case studies, not stock imagery */
.hero-gallery {
  display: flex;
  gap: 0.75em;
  margin-top: 1.75em;
  flex-wrap: wrap;
}

.hero-gallery a {
  flex: 1 1 180px;
  max-width: 220px;
  aspect-ratio: 4 / 3;
  border-radius: 0.35rem;
  overflow: hidden;
  background-color: #ffffff;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  display: block;
}

.hero-gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 200ms ease;
}

.hero-gallery a:hover img {
  transform: scale(1.06);
}

@media screen and (max-width: 44.9375em) {
  .hero {
    padding: 2em 1.25em;
  }

  .hero-gallery a {
    flex-basis: 45%;
  }
}

/* homepage case-study showcase cards */
.case-study-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25em;
  margin: 1.5em 0 1em;
}

.case-study-card {
  display: flex;
  flex-direction: column;
  border-radius: 0.5rem;
  overflow: hidden;
  background-color: var(--md-default-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: transform 180ms ease, box-shadow 180ms ease;
  color: var(--md-default-fg-color);
}

.case-study-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.14);
}

.case-study-card img {
  width: 100%;
  height: 170px;
  object-fit: cover;
  object-position: center top;
  display: block;
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
}

.case-study-card__body {
  padding: 1.1em 1.25em 1.3em;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.case-study-card__eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--md-accent-fg-color);
  margin-bottom: 0.5em;
}

.case-study-card__body h3 {
  margin: 0 0 0.4em;
  font-size: 1.05rem;
  line-height: 1.3;
}

.case-study-card__body p {
  margin: 0 0 1.1em;
  font-size: 0.88rem;
  color: var(--md-default-fg-color--light);
  flex: 1;
}

.case-study-card__cta {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--md-accent-fg-color);
}

.case-study-card__cta span {
  display: inline-block;
  transition: transform 150ms ease;
}

.case-study-card:hover .case-study-card__cta span {
  transform: translateX(3px);
}

@media screen and (max-width: 44.9375em) {
  .case-study-cards {
    grid-template-columns: 1fr;
  }
}

/* Hide the primary sidebar only on desktop, where Material lays it out as
   an inline column (content now uses that freed-up width instead). Left
   untouched below that breakpoint, where the same markup becomes the
   hamburger-menu drawer - the only way to reach top-level sections on
   mobile, so it must stay in the DOM and working there. 76.25em matches
   Material's own breakpoint for this switch (see overrides/main.html). */
@media screen and (min-width: 76.25em) {
  .md-sidebar--primary {
    display: none;
  }
}

/* case study overview hero: intro + CTA on the left, a real result figure
   on the right */
.case-study-hero {
  display: flex;
  align-items: center;
  gap: 2em;
  margin: 1.5em 0 2em;
}

.case-study-hero__body {
  flex: 1 1 55%;
}

.case-study-hero__body > p:first-child {
  font-size: 1.05em;
  color: var(--md-default-fg-color--light);
}

.case-study-hero__image {
  flex: 1 1 42%;
  border-radius: 0.5rem;
  overflow: hidden;
  border: 1px solid var(--md-default-fg-color--lightest);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.case-study-hero__image img {
  display: block;
  width: 100%;
  height: auto;
}

.meta-badge {
  display: inline-block;
  padding: 0.2em 0.75em;
  margin: 0.6em 0.4em 0 0;
  border-radius: 1em;
  font-size: 0.72rem;
  font-weight: 600;
  background-color: var(--md-default-fg-color--lightest);
  color: var(--md-default-fg-color--light);
}

@media screen and (max-width: 44.9375em) {
  .case-study-hero {
    flex-direction: column;
  }
}

/* keep inline code (filenames, identifiers) from breaking mid-word in tables */
.md-typeset table code {
  white-space: nowrap;
}

/* data provenance badges (getting_started/data.md) */
.data-badge {
  display: inline-block;
  padding: 0.15em 0.65em;
  border-radius: 1em;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.data-badge--synthetic {
  background-color: var(--md-default-fg-color--lightest);
  color: var(--md-default-fg-color--light);
}

.data-badge--real {
  background-color: var(--md-accent-fg-color--transparent);
  color: var(--md-accent-fg-color);
}

/* homepage lab credit strip */
.onda-credit {
  display: flex;
  align-items: center;
  gap: 0.75em;
  margin: 1.5em 0;
}

/* inline language switcher (docs/javascripts/lang-switch.js) - sits right
   under the notebook's H1, in the normal page flow */
.lang-switch {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.25rem;
  padding: 0.3rem;
  margin: 0.25rem 0 1.75rem;
  border-radius: 2rem;
  background-color: var(--md-default-fg-color--lightest);
}

/* download icon buttons (notebook, script), folded into the same pill
   bar as the language switcher (divided by a thin rule) instead of
   separate links next to it - reads as one "pick a language, or just
   grab the code" control */
.lang-switch__download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.4rem 0.7rem;
  margin-left: 0.15rem;
  border: none;
  border-left: 1px solid var(--md-default-fg-color--lighter);
  border-radius: 0 1.5rem 1.5rem 0;
  background: transparent;
  color: var(--md-default-fg-color--light);
  cursor: pointer;
  transition: background-color 125ms, color 125ms;
}

.lang-switch__download:hover {
  background-color: var(--md-accent-fg-color--transparent);
  color: var(--md-accent-fg-color);
}

/* download button at the end of the notebook content */
.download-code-button {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--md-default-fg-color--lightest);
}

.lang-switch__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: none;
  border-radius: 1.5rem;
  padding: 0.4rem 1.1rem;
  font-family: var(--md-text-font-family);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  color: var(--md-default-fg-color);
  background-color: transparent;
  transition: background-color 125ms, color 125ms;
}

.lang-switch__icon {
  width: 1.1em;
  height: 1.1em;
  flex: none;
}

.lang-switch__btn:hover {
  background-color: var(--md-accent-fg-color--transparent);
}

.lang-switch__btn--active {
  background-color: var(--md-primary-fg-color);
  color: var(--md-primary-bg-color);
  cursor: default;
}

/* analysis pipeline stepper (case study overview pages) */
.pipeline {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin: 1.5em 0 2em;
}

.pipeline__step {
  flex: 1 1 0;
  padding: 1.5em 1.25em;
  background-color: var(--md-default-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 0.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.pipeline__step:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.1);
}

.pipeline__badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  margin-bottom: 0.9rem;
  border-radius: 50%;
  background: linear-gradient(135deg, #1b4f72 0%, #14688f 100%);
  color: #fff;
}

.pipeline__badge svg {
  width: 1.4rem;
  height: 1.4rem;
  fill: currentColor;
}

.pipeline__step h4 {
  margin: 0 0 0.6em;
  font-size: 0.95rem;
}

.pipeline__step ul {
  margin: 0;
  padding-left: 1.1em;
  font-size: 0.82rem;
  color: var(--md-default-fg-color--light);
}

.pipeline__step li {
  margin: 0.25em 0;
}

.pipeline__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 2rem;
  color: var(--md-default-fg-color--lighter);
}

.pipeline__arrow svg {
  width: 1.3rem;
  height: 1.3rem;
  fill: currentColor;
}

@media screen and (max-width: 59.9375em) {
  .pipeline {
    flex-direction: column;
    gap: 0.75em;
  }

  .pipeline__arrow {
    width: auto;
    height: 1.25rem;
  }

  .pipeline__arrow svg {
    transform: rotate(90deg);
  }
}

/* top-nav dropdown for sections with more than one page (overrides/
   partials/tabs-item.html) - replaces the sidebar as the way to reach
   a section's other pages now that the sidebar is desktop-hidden */
.md-tabs,
.md-tabs__list {
  overflow: visible; /* stock rule clips anything taller than the tab bar */
}

.md-tabs__list {
  contain: none; /* stock `contain: content` paint-clips the dropdown
                    regardless of overflow - this is the one that
                    actually matters */
}

.md-tabs__item {
  position: relative;
}

.md-tabs__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 100%;
  margin: 0;
  padding: 0.3rem 0;
  list-style: none;
  background-color: var(--md-primary-fg-color);
  border-radius: 0 0 0.2rem 0.2rem;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 150ms ease, transform 150ms ease, visibility 150ms;
  white-space: nowrap;
  z-index: 10;
}

.md-tabs__item:hover .md-tabs__dropdown,
.md-tabs__item:focus-within .md-tabs__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.md-tabs__dropdown-link {
  display: block;
  padding: 0.5rem 1.1rem;
  font-size: 0.7rem;
  color: var(--md-primary-bg-color);
  opacity: 0.8;
}

.md-tabs__dropdown-link:hover,
.md-tabs__dropdown-link--active {
  opacity: 1;
  background-color: rgba(255, 255, 255, 0.1);
}

/* "more in this section" links at the bottom of Getting Started / About
   pages (docs/javascripts/section-nav.js) */
.section-nav {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--md-default-fg-color--lightest);
}

.section-nav__heading {
  margin: 0 0 0.75rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--md-default-fg-color--light);
}

.section-nav__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}