/*
https://github.com/squidfunk/mkdocs-material/issues/2163#issuecomment-752916358
https://github.com/squidfunk/mkdocs-material/discussions/6185#discussioncomment-12652384
*/

h1#home,
h1#about,
h1#blog {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  clip: rect(0 0 0 0 0);
  white-space: nowrap;
}

/* Rounded pill for theme toggle */
.md-header__option .md-icon {
  padding: .25rem; border-radius: 999px;
}
.md-header__option .md-icon:hover {
  background: var(--md-default-fg-color--lightest);
}

/* ===== Color schemes ===== */

:root,
[data-md-color-scheme="default"] {
  --md-default-bg-color: hsl(0, 0%, 98%);
  --md-primary-fg-color: hsl(0, 0%, 100%);
  --md-primary-fg-color--light: hsl(209, 100%, 65%);
  --md-primary-fg-color--dark: hsl(209, 100%, 35%);
  --md-primary-bg-color: hsla(0, 2%, 12%, 0.75);
  --md-primary-bg-color--light: hsla(0, 0%, 0%, 0.54);
  --md-accent-fg-color: hsl(209, 100%, 35%);
  --pg-light-border: hsl(220, 13%, 91%);
  --hb-hero-color: hsl(0, 0%, 18%);
  --link-accent: hsl(209, 100%, 65%);
}

[data-md-color-scheme="slate"] {
  --md-default-bg-color: hsl(228, 11%, 9%);
  --md-primary-fg-color: hsla(240, 10%, 4%, 0.5);
  --md-primary-fg-color--light: hsl(209, 100%, 65%);
  --md-primary-fg-color--dark: hsl(209, 100%, 80%);
  --md-primary-bg-color: hsla(0, 0%, 0%, 0.75);
  --md-primary-bg-color--light: hsla(0, 0%, 0%, 0.54);
  --md-accent-fg-color: hsl(209, 100%, 80%);
  --pg-light-border: hsl(0, 0%, 18%);
  --hb-hero-color: hsl(209, 100%, 65%);
  --link-accent: hsl(209, 100%, 65%);
}

/* Apply consistent link color */
[data-md-color-scheme] > * {
  --md-typeset-a-color: var(--link-accent);
}

/* ===== Header gradient (dark mode only) ===== */

[data-md-color-scheme="slate"] .header-gradient {
  position: absolute;
  z-index: -99;
  width: 100%;
  height: 30.5vh;
  transform: rotate(180deg);
  filter: blur(100px);
  background: radial-gradient(
    70.81% 208.07% at 49.97% 160.07%,
    rgba(0, 78, 150, 0.18) 0%,
    rgba(2, 24, 45, 0) 100%
  );
}

/* Remove sticky nav backgrounds that clash with gradient */
.md-nav--secondary .md-nav__title,
.md-nav--lifted > .md-nav__list > .md-nav__item--active > .md-nav__link {
  background: none !important;
  box-shadow: none !important;
  position: unset !important;
}

/* ===== Header & tabs (opaque, no blur) ===== */

/* Remove default shadow */
.md-header[data-md-state="shadow"],
.md-header--shadow {
  box-shadow: none;
}

/* Solid backgrounds - light mode */
.md-header,
.md-tabs {
  background-color: hsl(0, 0%, 100%);
}

/* Solid backgrounds - dark mode */
[data-md-color-scheme="slate"] .md-header,
[data-md-color-scheme="slate"] .md-tabs {
  background-color: hsl(228, 11%, 12%);
}

/* Bottom border on navbar (no border between header and tabs) */
header.md-header {
  border: none !important;
  box-shadow: none !important;
}

nav.md-tabs {
  border: none !important;
  border-bottom: 1px solid var(--pg-light-border) !important;
  box-shadow: none !important;
}

/* Soften button/icon colors */
.md-header__button {
  color: var(--md-default-fg-color--light);
}

/* White text in dark mode */
[data-md-color-scheme="slate"] .md-header > *,
[data-md-color-scheme="slate"] .md-tabs {
  color: hsl(0, 0%, 100%);
}

/* ===== Cards (home/landing pages) ===== */

/* Hover/focus states - no shadow, subtle border */
.md-typeset .grid.cards > ol > li:focus-within,
.md-typeset .grid.cards > ol > li:hover,
.md-typeset .grid.cards > ul > li:focus-within,
.md-typeset .grid.cards > ul > li:hover,
.md-typeset .grid > .card:focus-within,
.md-typeset .grid > .card:hover {
  box-shadow: none !important;
  border-color: hsla(209, 100%, 65%, 0.5);
}

/* Rounded corners */
.md-typeset .grid.cards > ol > li,
.md-typeset .grid.cards > ul > li,
.md-typeset .grid > .card {
  border-radius: 7px;
}

/* Card background color */
.md-typeset .grid.cards > ul > li {
  background-color: var(--md-primary-fg-color);
}

/* ===== Mobile sidebar ===== */

/* White drawer title in dark mode */
[data-md-color-scheme="slate"] .md-nav--primary .md-nav__title[for="__drawer"] {
  color: hsl(0, 0%, 100%);
}

/* Source link styling */
[data-md-color-scheme="default"] .md-nav__source {
  background-color: var(--md-primary-fg-color--light);
  color: #fff;
}

/* ===== Search box (normal size with frosted glass) ===== */

@media (min-width: 60em) {
  .md-search__overlay {
    background-color: transparent;
  }

  /* Light theme: translucent white */
  [data-md-color-scheme="default"] .md-search__form {
    background-color: hsla(0, 0%, 100%, 0.75) !important;
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: none;
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    border-radius: 6px;
  }

  /* Dark theme: translucent dark */
  [data-md-color-scheme="slate"] .md-search__form {
    background-color: hsla(240, 10%, 10%, 0.75) !important;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: none;
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    border-radius: 6px;
  }

  /* Rounded top when expanded */
  [data-md-toggle="search"]:checked ~ .md-header .md-search__form {
    border-radius: 6px 6px 0 0;
  }

  /* Search results dropdown */
  [dir="ltr"] .md-search__output {
    top: initial;
    border-radius: 0 0 6px 6px;
  }

  [data-md-toggle="search"]:checked ~ .md-header .md-search__output {
    box-shadow: 0 0 .6rem hsla(0, 0%, 0%, 0.07);
  }

  /* Light theme: dark text */
  [data-md-color-scheme="default"] .md-search__input {
    color: hsl(223, 15%, 16%) !important;
  }

  [data-md-color-scheme="default"] .md-search__icon,
  [data-md-color-scheme="default"] .md-search__input::placeholder {
    color: hsl(223, 10%, 45%) !important;
  }

  /* Dark theme: white text */
  [data-md-color-scheme="slate"] .md-search__input {
    color: hsl(0, 0%, 100%) !important;
  }

  [data-md-color-scheme="slate"] .md-search__icon,
  [data-md-color-scheme="slate"] .md-search__input::placeholder {
    color: hsl(0, 0%, 80%) !important;
  }
}

/* ===== Footer ===== */

.md-footer {
  margin-top: 1rem;
  border-top: 1px solid var(--pg-light-border);
}

/* ===== Buttons ===== */

.md-main .md-button--primary {
  color: var(--md-primary-fg-color);
  background-color: var(--hb-hero-color);
  border-color: transparent;
}

.md-typeset .md-button:focus {
  background: transparent;
}

/* ===== Utilities ===== */

.accent {
  color: var(--md-typeset-a-color);
}

.md-nav__link svg {
  width: 22px;
}

.noJs {
  display: none;
}

.twemoji {
  --md-icon-size: 1.225em !important;
  height: var(--md-icon-size);
  width: var(--md-icon-size);
}