:root {
  --color-primary: #4a34bc;
  --color-primary-dark: #432fa9;
  --color-text: #1c1e21;
  --color-text-muted: #606770;
  --color-background: #fff;
  --color-navbar: #fff;
  --color-footer: #303846;
  --color-hero-text: #fff;
  --font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;
  --navbar-height: 5rem;
  --max-width: 1140px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-background);
  line-height: 1.6;
}

a {
  color: var(--color-primary);
}

img {
  max-width: 100%;
  height: auto;
}

code {
  font-size: 95%;
  background: #f6f7f8;
  border-radius: 0.25rem;
  padding: 0.1rem 0.3rem;
}

pre {
  background: #f6f7f8;
  border-radius: 0.5rem;
  padding: 1rem;
  overflow-x: auto;
}

pre code {
  background: none;
  padding: 0;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--navbar-height);
  background: var(--color-navbar);
  border-bottom: 1px solid #ebedf0;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.navbar__inner {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 1rem;
}

.navbar__brand img {
  height: 4rem;
  padding: 0.5rem 0;
}

.navbar__items {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex: 1;
}

.navbar__items--left {
  margin-left: 0.5rem;
}

.navbar__items--right {
  margin-left: auto;
  justify-content: flex-end;
}

.navbar__link {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  white-space: nowrap;
}

.navbar__link:hover {
  color: var(--color-primary);
}

.navbar__search {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.navbar__menu {
  display: flex;
  align-items: center;
  flex: 1;
  gap: 1rem;
  min-width: 0;
}

.navbar__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid #ebedf0;
  border-radius: 0.5rem;
  background: #fff;
  cursor: pointer;
}

.navbar__toggle-bar {
  display: block;
  width: 1.25rem;
  height: 2px;
  margin: 0 auto;
  background: var(--color-text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.navbar__toggle.is-open .navbar__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.navbar__toggle.is-open .navbar__toggle-bar:nth-child(2) {
  opacity: 0;
}

.navbar__toggle.is-open .navbar__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Buttons */
.button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 1.18125rem; /* 18.9px */
}

.button--secondary {
  background: #fff;
  color: #000;
  border-color: #fff;
}

.button--secondary:hover {
  background: rgba(255, 255, 255, 0.9);
}

/* Hero */
.hero {
  height: 530px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #222 url("/assets/ryoanji-progress.jpg") center no-repeat;
  color: var(--color-hero-text);
  text-align: center;
  margin-bottom: 5em;
}

.hero .container {
  width: 100%;
}

.hero__title {
  font-size: 3rem;
  margin: 0 0 0.5rem;
}

.hero__subtitle {
  font-size: 1.5rem;
  margin: 0 0 2rem;
  opacity: 0.95;
}

.hero__buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
}

/* Sections */
.section {
  padding: 2rem 0;
}

.section h2 {
  margin-top: 0;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -1rem;
}

.col {
  padding: 0 1rem;
  flex: 1 1 100%;
}

.col--3 {
  flex: 1 1 25%;
  min-width: 220px;
}

.col--6 {
  flex: 1 1 50%;
  min-width: 280px;
}

/* Content pages */
.page-content {
  padding: 2rem 0 4rem;
}

.page-content h1 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.page-content h2 {
  margin-top: 2rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid #ebedf0;
}

.page-content iframe {
  max-width: 100%;
}

/* Admonitions */
.admonition {
  border-left: 4px solid var(--color-primary);
  background: #f6f7f8;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  border-radius: 0 0.5rem 0.5rem 0;
}

.admonition--warning {
  border-left-color: #e6a700;
  background: #fff8e6;
}

.admonition__title {
  font-weight: 700;
  margin-bottom: 0.5rem;
}

/* Tabs */
.tabs {
  margin: 1.5rem 0;
}

.tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  border-bottom: 2px solid #ebedf0;
  margin-bottom: 1rem;
}

.tab-button {
  background: none;
  border: none;
  padding: 0.75rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
}

.tab-button:hover {
  color: var(--color-primary);
}

.tab-button[aria-selected="true"] {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tab-panel {
  display: none;
}

.tab-panel[aria-hidden="false"] {
  display: block;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.9rem;
}

th,
td {
  border: 1px solid #ebedf0;
  padding: 0.5rem 0.75rem;
  text-align: left;
}

th {
  background: #f6f7f8;
}

/* Footer */
.footer {
  background: var(--color-footer);
  color: #fff;
  padding: 2rem 0;
  margin-top: 3rem;
}

.footer a {
  color: #fff;
  opacity: 0.9;
}

.footer a:hover {
  opacity: 1;
}

.footer__grid {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer__section h3 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.footer__section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer__section li {
  margin-bottom: 0.5rem;
}

.footer__copyright {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

/* DocSearch in navbar */
.navbar__search .DocSearch-Button {
  margin: 0;
}

@media screen and (max-width: 996px) {
  .navbar {
    height: auto;
  }

  .navbar__inner {
    flex-wrap: wrap;
    align-items: center;
    padding: 0.75rem 0;
    gap: 0.75rem;
  }

  .navbar__brand img {
    height: 3rem;
  }

  .navbar__toggle {
    display: flex;
    order: 1;
  }

  .navbar__brand {
    order: 2;
  }

  .navbar__search {
    margin-left: auto;
    order: 3;
  }

  .navbar__menu {
    display: none;
    order: 4;
    flex: 1 0 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 0 0.75rem;
    border-top: 1px solid #ebedf0;
  }

  .navbar__menu.is-open {
    display: flex;
  }

  .navbar__items {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    flex: none;
  }

  .navbar__items--left {
    margin-left: 0;
  }

  .navbar__items--right {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid #ebedf0;
  }

  .navbar__link {
    display: block;
    padding: 0.75rem 0;
    white-space: normal;
  }

  .hero__title {
    font-size: 2rem;
  }

  .hero__buttons {
    flex-direction: column;
  }
}

@media screen and (max-width: 600px) {
  .col--3,
  .col--6 {
    flex: 1 1 100%;
  }
}