/* Theme-specific logo switching: brand mark on the light header,
   white mark on the dark header */
[data-md-color-scheme="default"] .md-header__button.md-logo img,
[data-md-color-scheme="default"] .md-header__button.md-logo svg {
  content: url("../assets/logo-light.png");
  filter: none;
}

[data-md-color-scheme="slate"] .md-header__button.md-logo img,
[data-md-color-scheme="slate"] .md-header__button.md-logo svg {
  content: url("../assets/logo-dark.png");
  filter: brightness(0) invert(1);
}

/* Table column width adjustments */
.md-typeset table:not([class]) th:first-child,
.md-typeset table:not([class]) td:first-child {
  min-width: 180px;
}

/* Restyle the "Edit this page" action */
.md-content__button[rel="edit"] {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--md-primary-fg-color);
  color: var(--md-primary-bg-color);
  font-weight: 500;
  font-size: 0.85rem;
  line-height: 1.2;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(27, 31, 35, 0.12);
  margin: 0 0 1rem auto;
  transition: transform 150ms ease, box-shadow 150ms ease;
}

[data-md-color-scheme="slate"] .md-content__button[rel="edit"] {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.md-content__button[rel="edit"]:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(27, 31, 35, 0.16);
  color: var(--md-primary-bg-color);
}

.md-content__button[rel="edit"]::before {
  font-size: 1rem;
}

.md-content__button[rel="edit"]:focus-visible {
  outline: 0;
  box-shadow: 0 0 0 3px rgba(68, 138, 255, 0.4);
}

/* ---------- Typography ---------- */

/* Material defaults render h1/h2 at weight 300, which reads flat.
   Give headings real weight and a tighter tracking. */
.md-typeset h1 {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--md-default-fg-color);
}

.md-typeset h2 {
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-top: 2.4em;
}

/* Brand accent bar under section headings */
.md-typeset h2::after {
  content: "";
  display: block;
  width: 2.4rem;
  height: 3px;
  margin-top: 0.4rem;
  border-radius: 2px;
  background: linear-gradient(90deg, #654ff0, #c4b5fd);
}

.md-typeset h3 {
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-top: 2em;
}

/* Slightly looser body rhythm */
.md-typeset {
  line-height: 1.75;
}

/* Lead paragraph right under the page title */
.md-typeset h1 + p {
  font-size: 0.85rem;
  line-height: 1.8;
}

/* ---------- Brand color ---------- */

[data-md-color-scheme="default"] {
  --md-primary-fg-color: #4f46b8;
  --md-primary-fg-color--dark: #3f3894;
  --md-accent-fg-color: #654ff0;
  --md-typeset-a-color: #5344cc;
}

[data-md-color-scheme="slate"] {
  --md-accent-fg-color: #a78bfa;
  --md-typeset-a-color: #a78bfa;
}

/* ---------- Content images ---------- */

.md-typeset p > img:only-child {
  display: block;
  margin: 1.4em auto;
  border-radius: 10px;
}

/* ---------- Grid cards ---------- */

.md-typeset .grid.cards > ul > li {
  border-radius: 12px;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.md-typeset .grid.cards > ul > li:hover {
  transform: translateY(-2px);
  border-color: rgba(101, 79, 240, 0.4);
  box-shadow: 0 8px 24px rgba(30, 30, 60, 0.1);
}

[data-md-color-scheme="slate"] .md-typeset .grid.cards > ul > li:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

/* ---------- Buttons ---------- */

.md-typeset .md-button {
  border-radius: 999px;
  padding: 0.5em 1.4em;
}

/* ---------- Tables ---------- */

.md-typeset table:not([class]) {
  border-radius: 10px;
  overflow: hidden;
}

.md-typeset table:not([class]) th {
  background: rgba(101, 79, 240, 0.07);
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) th {
  background: rgba(167, 139, 250, 0.1);
}

/* ---------- Header: light chrome instead of a colored block ---------- */

/* Material derives header colors from the primary pair, so a white
   header with dark text only needs these two variables. */
[data-md-color-scheme="default"] {
  --md-primary-fg-color: #ffffff;
  --md-primary-fg-color--dark: #f3f4f6;
  --md-primary-bg-color: #1f2430;
  --md-primary-bg-color--light: #6b7280;
}

[data-md-color-scheme="slate"] {
  --md-primary-fg-color: #14161f;
  --md-primary-fg-color--dark: #10121a;
  --md-primary-bg-color: #e6e9f0;
  --md-primary-bg-color--light: #8b93a7;
}

[data-md-color-scheme="default"] .md-header,
[data-md-color-scheme="default"] .md-tabs {
  border-bottom: 1px solid #e5e7eb;
}

[data-md-color-scheme="slate"] .md-header,
[data-md-color-scheme="slate"] .md-tabs {
  border-bottom: 1px solid #262a38;
}

.md-header--shadow {
  box-shadow: none;
}

.md-tabs {
  border-top: none;
}

[data-md-color-scheme="default"] .md-search__form {
  background-color: #f3f4f6;
}

[data-md-color-scheme="default"] .md-search__form:hover {
  background-color: #e5e7eb;
}

[data-md-color-scheme="slate"] .md-search__form {
  background-color: #1f2330;
}

/* Active tab picks up the accent instead of relying on contrast alone */
.md-tabs__link--active {
  color: var(--md-accent-fg-color);
  font-weight: 600;
}

/* ---------- Primary buttons and the edit pill follow the accent,
   since primary is now the header surface ---------- */

.md-typeset .md-button--primary {
  background-color: var(--md-accent-fg-color);
  border-color: var(--md-accent-fg-color);
  color: #ffffff;
}

.md-content__button[rel="edit"] {
  background: var(--md-accent-fg-color);
  color: #ffffff;
}

.md-content__button[rel="edit"]:hover {
  color: #ffffff;
}

/* Back-to-top pill */
.md-top {
  background-color: var(--md-accent-fg-color);
  color: #ffffff;
}

/* ---------- Sidebar and TOC: pill hover, accented active item ---------- */

.md-nav__link {
  border-radius: 6px;
  padding: 0.15rem 0.35rem;
  margin-left: -0.35rem;
}

.md-nav__link:hover {
  background: rgba(101, 79, 240, 0.07);
}

[data-md-color-scheme="slate"] .md-nav__link:hover {
  background: rgba(167, 139, 250, 0.1);
}

.md-nav__link--active,
.md-nav__link.md-nav__link--active {
  color: var(--md-accent-fg-color);
  font-weight: 600;
}

/* ---------- Self-hosted Inter (variable, all weights in one file).
   No external font host involved; CJK text falls through to the
   system font (PingFang SC / Microsoft YaHei). License: OFL 1.1,
   see assets/fonts/LICENSE.txt ---------- */

@font-face {
  font-family: "Inter";
  src: url("../assets/fonts/InterVariable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --md-text-font: "Inter";
}