/* Material theme overrides using the homepage palette. */
:root {
  --homepage-background: #f4f3ef;
  --homepage-foreground: #181817;
  --homepage-muted: #77766f;
  --md-default-bg-color: var(--homepage-background);
  --md-default-fg-color: var(--homepage-foreground);
  --md-default-fg-color--light: var(--homepage-muted);
  --md-default-fg-color--lighter: color-mix(in srgb, var(--homepage-muted) 70%, white);
  --md-primary-fg-color: var(--homepage-foreground);
  --md-accent-fg-color: var(--homepage-muted);
  --md-typeset-a-color: var(--homepage-foreground);
  --md-typeset-color: var(--homepage-foreground);
  --md-typeset-mark-color: color-mix(in srgb, var(--homepage-muted) 20%, transparent);
  --md-code-bg-color: color-mix(in srgb, var(--homepage-muted) 12%, var(--homepage-background));
  --md-footer-bg-color: var(--homepage-background);
  --md-footer-fg-color: var(--homepage-muted);
  --md-footer-bg-color--dark: var(--homepage-background);
  --md-footer-fg-color--light: var(--homepage-muted);
  --md-footer-fg-color--lighter: var(--homepage-muted);
}

html {
  scroll-padding-top: 16px;
}

body,
.md-header,
.md-tabs,
.md-sidebar,
.md-main,
.md-footer {
  background-color: var(--homepage-background);
  color: var(--homepage-foreground);
}

.md-header,
.md-tabs {
  background-color: var(--homepage-background);
  color: var(--homepage-foreground);
  box-shadow: none;
  border-bottom: 1px solid color-mix(in srgb, var(--homepage-muted) 20%, transparent);
}

.md-header__title,
.md-header__button,
.md-nav__link,
.md-nav__item .md-nav__link--active,
.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4,
.md-typeset h5,
.md-typeset h6 {
  color: var(--homepage-foreground);
}

.md-nav__link:hover,
.md-nav__link:focus {
  color: var(--homepage-foreground);
}

.md-nav__link--active,
.md-nav__item .md-nav__link--active {
  background-color: color-mix(in srgb, var(--homepage-muted) 15%, transparent);
}

.md-nav__link:hover {
  background-color: color-mix(in srgb, var(--homepage-muted) 10%, transparent);
}

.md-typeset a {
  color: var(--homepage-foreground);
  text-decoration-color: color-mix(in srgb, var(--homepage-muted) 60%, transparent);
}

.md-typeset a:hover {
  color: var(--homepage-foreground);
  text-decoration-color: var(--homepage-foreground);
}

.md-typeset code,
.md-typeset pre > code {
  color: var(--homepage-foreground);
}

.md-typeset hr {
  border-bottom-color: color-mix(in srgb, var(--homepage-muted) 25%, transparent);
}

.md-typeset table:not([class]) {
  border-color: color-mix(in srgb, var(--homepage-muted) 25%, transparent);
}

.md-typeset table:not([class]) th {
  background-color: color-mix(in srgb, var(--homepage-muted) 10%, var(--homepage-background));
  color: var(--homepage-foreground);
}

.md-typeset table:not([class]) tr:hover {
  background-color: color-mix(in srgb, var(--homepage-muted) 8%, var(--homepage-background));
}

/*
  Page footer meta band (GitHub / homepage).
  Same background as the page — no gray strip.
  Sidebar copyright stays pinned separately and is not moved here.
*/
.md-footer,
.md-footer-meta {
  position: static;
  background-color: var(--homepage-background) !important;
  color: var(--homepage-foreground);
  border-top: 1px solid color-mix(in srgb, var(--homepage-muted) 25%, transparent);
}

.md-footer-meta {
  border-top: none;
}

.md-footer-meta__inner {
  justify-content: flex-end;
}

.md-social__link {
  color: var(--homepage-muted);
}

.md-social__link:hover,
.md-social__link:focus {
  color: var(--homepage-foreground);
}

/* Keep © in the sidebar only; footer meta is for GitHub / homepage links. */
.md-footer .md-copyright {
  display: none;
}

/* 1: hide desktop top header; keep a minimal mobile menu bar. */
@media screen and (min-width: 76.25em) {
  .md-header {
    display: none;
  }

  .md-main {
    margin-top: 0;
  }
}

@media screen and (max-width: 76.1875em) {
  .md-header__title,
  .md-header__button.md-logo {
    display: none;
  }
}

/* 2: hide sidebar site title / logo row. */
.md-nav--primary .md-nav__title {
  display: none;
}

/*
  Desktop: pin copyright under the sidebar, centered.
  Leave enough scroll padding so the last nav links are not covered.
*/
@media screen and (min-width: 76.25em) {
  .md-sidebar--primary::after {
    content: "© 2021-present Yuan Zhang";
    position: fixed;
    bottom: 0;
    left: var(--tn-sidebar-left, 0);
    width: var(--tn-sidebar-width, 12.1rem);
    z-index: 4;
    box-sizing: border-box;
    padding: 0.4rem 0.5rem 0.7rem;
    text-align: center;
    font-size: 0.64rem;
    line-height: 1.4;
    color: var(--homepage-muted);
    background-color: var(--homepage-background);
    pointer-events: none;
  }

  .md-sidebar--primary .md-sidebar__inner,
  .md-sidebar--primary .md-nav--primary > .md-nav__list {
    padding-bottom: 4.5rem;
  }
}