:root {
  --dm-bg-a: #f4fff9;
  --dm-bg-b: #e8f3ff;
  --dm-ink: #142034;
  --dm-muted: #405270;
  --dm-border: #b8d8ff;

  --dm-brand-1: #00c389;
  --dm-brand-2: #21b6ff;
  --dm-brand-3: #7f5cff;
  --dm-brand-4: #ffd84d;

  --dm-header-1: #00a86f;
  --dm-header-2: #0ea5e9;
  --dm-header-3: #6654ff;

  --dm-card: #ffffff;
  --dm-code: #eef5ff;
  --dm-focus: #ffb703;
}

[data-md-color-scheme="slate"] {
  --dm-bg-a: #0b1122;
  --dm-bg-b: #121a33;
  --dm-ink: #e7efff;
  --dm-muted: #b8c7e8;
  --dm-border: #2a3f6f;
  --dm-card: #121a2f;
  --dm-code: #0b1428;
}

.md-main {
  background:
    linear-gradient(135deg, rgba(0, 195, 137, 0.16), transparent 36%),
    linear-gradient(230deg, rgba(33, 182, 255, 0.18), transparent 42%),
    radial-gradient(circle at 90% 10%, rgba(127, 92, 255, 0.2), transparent 28%),
    radial-gradient(circle at 10% 90%, rgba(255, 216, 77, 0.18), transparent 26%),
    linear-gradient(180deg, var(--dm-bg-a), var(--dm-bg-b));
}

.md-header,
.md-tabs {
  background: linear-gradient(110deg, var(--dm-header-1), var(--dm-header-2) 55%, var(--dm-header-3)) !important;
  color: #f8fcff !important;
}

.md-header__title .md-ellipsis {
  color: #ffffff !important;
  font-weight: 900;
  letter-spacing: 0.02em;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.25);
}

.md-tabs__item {
  margin-right: 0.35rem;
}

.md-tabs__link {
  color: #f4fbff !important;
  font-weight: 800;
  border-radius: 0.18rem;
  padding: 0.34rem 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: rgba(20, 36, 70, 0.2);
  clip-path: polygon(0.45rem 0, 100% 0, calc(100% - 0.45rem) 100%, 0 100%);
}

.md-tabs__link:hover,
.md-tabs__link--active {
  color: #ffffff !important;
  background: rgba(20, 36, 70, 0.42);
  border-color: rgba(255, 255, 255, 0.72);
}

.md-search__form {
  background: rgba(8, 27, 54, 0.26) !important;
  border: 1px solid rgba(255, 255, 255, 0.5) !important;
  border-radius: 999px;
}

.md-search__input,
.md-search__icon,
.md-header__button,
.md-header__option {
  color: #f7fcff !important;
}

.course-header-tools {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-left: auto;
  padding-left: 0.5rem;
}

.course-badge {
  border-radius: 999px;
  padding: 0.3rem 0.7rem;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.6);
  background: linear-gradient(90deg, rgba(255, 216, 77, 0.25), rgba(255, 255, 255, 0.14));
  text-transform: uppercase;
}

.header-utility-btn,
.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.68);
  background: rgba(19, 39, 74, 0.24);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 0.34rem 0.72rem;
  text-decoration: none;
  cursor: pointer;
}

.header-utility-btn:hover,
.header-cta:hover,
.header-utility-btn.is-active {
  background: rgba(19, 39, 74, 0.45);
}

.md-content {
  max-width: none;
}

.md-content__inner {
  margin: 1rem 0 1.75rem;
  padding: 1.45rem 1.35rem 2rem;
  border-radius: 16px;
  border: 1px solid var(--dm-border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(241, 249, 255, 0.96));
  box-shadow: 0 12px 30px rgba(18, 57, 122, 0.1);
}

[data-md-color-scheme="slate"] .md-content__inner {
  background: linear-gradient(180deg, rgba(18, 26, 47, 0.96), rgba(16, 23, 41, 0.96));
}

.md-typeset {
  color: var(--dm-ink);
  line-height: 1.72;
}

.md-typeset h1,
.md-typeset h2,
.md-typeset h3 {
  letter-spacing: 0.01em;
}

.md-typeset h1 {
  display: inline-block;
  border-bottom: 4px solid transparent;
  border-image: linear-gradient(90deg, var(--dm-brand-1), var(--dm-brand-2), var(--dm-brand-3)) 1;
  padding-bottom: 0.3rem;
  margin-bottom: 1rem;
}

.md-typeset h2 {
  padding-left: 0.62rem;
  border-left: 5px solid transparent;
  border-image: linear-gradient(180deg, var(--dm-brand-1), var(--dm-brand-2), var(--dm-brand-3)) 1;
  margin-top: 2rem;
}

.md-typeset blockquote {
  border-left-color: var(--dm-brand-2);
  background: linear-gradient(90deg, rgba(33, 182, 255, 0.12), rgba(127, 92, 255, 0.08));
  border-radius: 0 10px 10px 0;
}

.purpose-note {
  margin: 0.7rem 0 1.25rem;
  padding: 0.65rem 0.85rem;
  border-radius: 10px;
  border: 1px solid var(--dm-border);
  background: linear-gradient(90deg, rgba(0, 195, 137, 0.14), rgba(33, 182, 255, 0.14));
}

/* Collapsible blocks for code/images */
.collapsible-block {
  margin: 1rem 0;
  border: 1px solid var(--dm-border);
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(239, 246, 255, 0.88));
}

[data-md-color-scheme="slate"] .collapsible-block {
  background: linear-gradient(180deg, rgba(17, 26, 48, 0.9), rgba(14, 21, 40, 0.9));
}

.collapsible-block > summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
  padding: 0.6rem 0.85rem;
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--dm-ink);
  border-bottom: 1px solid rgba(33, 182, 255, 0.25);
  background: linear-gradient(90deg, rgba(0, 195, 137, 0.2), rgba(33, 182, 255, 0.16), rgba(127, 92, 255, 0.18));
}

.collapsible-block > summary::-webkit-details-marker {
  display: none;
}

.collapsible-block > summary::before {
  content: "+";
  display: inline-block;
  margin-right: 0.55rem;
  font-weight: 900;
}

.collapsible-block[open] > summary::before {
  content: "−";
}

.collapsible-code > pre {
  margin: 0;
}

.collapsible-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.collapsible-figure > p {
  margin: 0;
}

/* Table expansion fix: force table wrappers and tables to fill width */
.md-typeset__table,
.md-typeset__scrollwrap {
  display: block !important;
  width: 100% !important;
  max-width: 100% !important;
  margin: 1rem 0 !important;
}

.md-typeset__scrollwrap {
  overflow-x: auto !important;
}

.md-typeset__table table,
.md-typeset__scrollwrap table,
.md-typeset table:not([class]) {
  display: table !important;
  width: 100% !important;
  min-width: 100% !important;
  max-width: none !important;
  table-layout: auto;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--dm-border);
  border-radius: 12px;
  overflow: hidden;
}

.md-typeset table:not([class]) th,
.md-typeset table:not([class]) td {
  white-space: normal;
}

.md-typeset table:not([class]) th {
  background: linear-gradient(90deg, rgba(0, 195, 137, 0.18), rgba(33, 182, 255, 0.18), rgba(127, 92, 255, 0.2));
  color: var(--dm-ink);
  font-weight: 800;
}

.md-typeset table:not([class]) tbody tr:nth-child(odd) {
  background: rgba(33, 182, 255, 0.07);
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) tbody tr:nth-child(odd) {
  background: rgba(127, 92, 255, 0.1);
}

@media (max-width: 60em) {
  .md-typeset__table table,
  .md-typeset__scrollwrap table,
  .md-typeset table:not([class]) {
    min-width: 42rem !important;
  }
}

.md-typeset pre > code {
  background: var(--dm-code);
  border: 1px solid var(--dm-border);
  border-radius: 12px;
}

@media (min-width: 76.25em) {
  .md-main__inner {
    display: grid;
    grid-template-columns: minmax(13rem, 15rem) minmax(0, 1fr) minmax(12rem, 14rem);
    gap: 1.1rem;
    max-width: 100%;
    margin: 0;
    padding: 0 1rem;
  }

  .md-sidebar--primary {
    grid-column: 1;
    margin-left: 0;
    left: 0;
  }

  .md-content {
    grid-column: 2;
  }

  .md-sidebar--secondary {
    grid-column: 3;
    margin-left: 0;
    right: 0;
  }

  body.has-nav-collapsed .md-sidebar--primary,
  body.has-toc-collapsed .md-sidebar--secondary {
    display: none;
  }

  body.has-nav-collapsed .md-main__inner {
    grid-template-columns: minmax(0, 1fr) minmax(12rem, 14rem);
  }

  body.has-nav-collapsed .md-content {
    grid-column: 1;
  }

  body.has-nav-collapsed .md-sidebar--secondary {
    grid-column: 2;
  }

  body.has-toc-collapsed .md-main__inner {
    grid-template-columns: minmax(13rem, 15rem) minmax(0, 1fr);
  }

  body.has-toc-collapsed .md-content {
    grid-column: 2;
  }

  body.has-nav-collapsed.has-toc-collapsed .md-main__inner {
    grid-template-columns: minmax(0, 1fr);
  }

  body.has-nav-collapsed.has-toc-collapsed .md-content {
    grid-column: 1;
  }
}

.md-nav,
.md-sidebar__scrollwrap,
.md-nav__title,
.md-nav__source,
.md-sidebar--secondary .md-nav {
  border-radius: 12px;
}

/* Footer redesign from scratch */
.md-footer,
.md-footer-nav {
  background: transparent !important;
  box-shadow: none !important;
}

.md-footer-nav {
  display: none !important;
}

.custom-footer {
  margin-top: 1.6rem;
  background:
    radial-gradient(circle at 12% 12%, rgba(255, 216, 77, 0.22), transparent 30%),
    radial-gradient(circle at 82% 18%, rgba(127, 92, 255, 0.24), transparent 30%),
    linear-gradient(115deg, var(--dm-header-1), var(--dm-header-2) 54%, var(--dm-header-3));
  color: #fff;
  border-top: 1px solid rgba(255, 255, 255, 0.45);
}

.custom-footer__inner {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 1.2rem clamp(1rem, 2.2vw, 2.2rem) 0.8rem;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 2.75fr);
  gap: 1rem;
}

.custom-footer__label {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.94);
}

.custom-footer__project {
  margin: 0.25rem 0 0;
  font-size: 1.15rem;
  line-height: 1.2;
  font-weight: 900;
}

.custom-footer__tagline {
  margin-top: 0.45rem;
  max-width: 56ch;
  color: rgba(250, 254, 255, 0.96);
  font-size: 0.9rem;
}

.custom-footer__subscribe {
  margin-top: 0.6rem;
  max-width: 30rem;
}

.custom-footer__subscribe-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: rgba(255, 255, 255, 0.98);
  margin-bottom: 0.4rem;
}

.custom-footer__subscribe-row {
  display: flex;
  gap: 0.45rem;
}

.custom-footer__subscribe-input {
  flex: 1;
  min-width: 0;
  border: 1px solid rgba(255, 255, 255, 0.56);
  border-radius: 10px;
  padding: 0.52rem 0.62rem;
  background: rgba(16, 34, 66, 0.24);
  color: #fff;
}

.custom-footer__subscribe-input::placeholder {
  color: rgba(255, 255, 255, 0.72);
}

.custom-footer__subscribe-btn {
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 10px;
  padding: 0.52rem 0.8rem;
  background: linear-gradient(90deg, rgba(255, 216, 77, 0.9), rgba(255, 255, 255, 0.88));
  color: #12324f;
  font-weight: 900;
  cursor: pointer;
}

.custom-footer__subscribe-note {
  margin: 0.3rem 0 0;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.9);
}

.custom-footer__subscribe-status {
  min-height: 1.1rem;
  margin: 0.25rem 0 0;
  font-size: 0.8rem;
  color: #fff;
  font-weight: 700;
}

.custom-footer__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
}

.footer-col__title {
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.58rem;
  font-weight: 900;
  color: #fff;
}

.footer-link {
  display: block;
  color: rgba(255, 255, 255, 0.97) !important;
  text-decoration: none;
  padding: 0.14rem 0;
  font-size: 0.86rem;
}

.footer-link:hover {
  color: #fff !important;
  text-decoration: underline;
}

.custom-footer__meta {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0.55rem clamp(1rem, 2.2vw, 2.2rem) 0.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  border-top: 1px solid rgba(255, 255, 255, 0.34);
  color: rgba(255, 255, 255, 0.95);
  font-weight: 600;
}

.custom-footer__credit {
  color: #ffffff !important;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.55);
}

.custom-footer__credit:hover {
  text-decoration-color: #ffffff;
}

/* Remove default Material footer attribution/meta */
.md-footer-meta,
.md-footer-meta__inner,
.md-footer-copyright,
.md-footer-copyright__highlight {
  display: none !important;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible,
[role="button"]:focus-visible {
  outline: 3px solid var(--dm-focus);
  outline-offset: 2px;
  border-radius: 6px;
}

@media (max-width: 76.1875em) {
  .course-badge {
    display: none;
  }

  .course-header-tools {
    gap: 0.35rem;
    padding-left: 0.2rem;
  }

  .header-utility-btn,
  .header-cta {
    font-size: 0.71rem;
    padding: 0.3rem 0.55rem;
  }

  .md-content__inner {
    border-radius: 12px;
    padding: 1.2rem 0.95rem 1.55rem;
  }

  .custom-footer__inner,
  .custom-footer__grid {
    grid-template-columns: 1fr;
  }

  .custom-footer__subscribe-row {
    flex-direction: column;
  }

  .custom-footer__meta {
    flex-direction: column;
    gap: 0.35rem;
  }
}

@media (max-width: 78em) {
  .custom-footer__inner {
    grid-template-columns: 1fr;
  }

  .custom-footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}