/* ==========================================================================
   Tutorial_AwesomeModernCPP - Custom Stylesheet
   Improve Chinese typography, code readability, and visual hierarchy
   ========================================================================== */

/* ---------- Global ---------- */

/* Smooth scrolling for the entire page */
html {
  scroll-behavior: smooth;
}

/* Custom text selection color */
::selection {
  background: rgba(81, 107, 232, 0.25);
  color: inherit;
}

[data-md-color-scheme="slate"] ::selection {
  background: rgba(99, 126, 255, 0.3);
}

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

.md-typeset {
  line-height: 1.85;
  font-size: 0.82rem;
}

.md-typeset h1 { line-height: 1.4; }
.md-typeset h2 { line-height: 1.45; }
.md-typeset h3 { line-height: 1.5; }
.md-typeset h4 { line-height: 1.55; }

.md-typeset p {
  margin-bottom: 1.2em;
}

/* ---------- Header Gradient ---------- */

/* Subtle indigo-to-blue gradient for a modern look */
.md-header {
  background: linear-gradient(135deg, #3f51b5 0%, #5c6bc0 50%, #42a5f5 100%);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

[data-md-color-scheme="slate"] .md-header {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

/* Header tabs bar matches gradient */
.md-tabs {
  background: linear-gradient(135deg, #3949ab 0%, #5c6bc0 50%, #42a5f5 100%);
}

[data-md-color-scheme="slate"] .md-tabs {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

/* ---------- Sidebar ---------- */

/* Sidebar items: more spacing and smooth hover transitions */
.md-nav__item {
  padding: 0.15em 0;
}

.md-nav__link {
  transition: all 0.2s ease;
  border-radius: 4px;
  margin: 1px 4px;
  padding: 4px 8px !important;
}

.md-nav__link:hover {
  background-color: rgba(81, 107, 232, 0.08);
}

[data-md-color-scheme="slate"] .md-nav__link:hover {
  background-color: rgba(99, 126, 255, 0.12);
}

/* Active sidebar item highlight */
.md-nav__link--active {
  font-weight: 600;
}

.md-nav__section-title {
  font-size: 0.72rem;
  letter-spacing: 0.03em;
}

/* ---------- Content Width ---------- */

.md-grid {
  max-width: 80rem;
}

/* ---------- Code Blocks ---------- */

/* Rounded corners for code blocks */
.md-typeset pre > code {
  max-height: 32rem;
  font-size: 0.75rem;
  line-height: 1.6;
  border-radius: 8px;
}

/* Code block container with subtle shadow */
.md-typeset pre {
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  margin: 1em 0;
}

[data-md-color-scheme="slate"] .md-typeset pre {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* Inline code with better visual treatment */
.md-typeset code {
  font-size: 0.78em;
  padding: 0.15em 0.35em;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

/* Code copy button styling */
.md-clipboard {
  transition: all 0.2s ease;
  border-radius: 4px;
}

.md-clipboard:hover {
  color: var(--md-accent-fg-color);
}

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

.md-typeset table:not([class]) {
  font-size: 0.78rem;
  line-height: 1.6;
  display: table;
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) {
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}

.md-typeset table:not([class]) th {
  font-weight: 600;
  padding: 0.75em 1em;
}

.md-typeset table:not([class]) td {
  padding: 0.65em 1em;
}

.md-typeset table:not([class]) tr:nth-child(even) {
  background-color: rgba(0, 0, 0, 0.02);
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.03);
}

/* ---------- Admonitions ---------- */

/* Admonitions with rounded corners and subtle shadow */
.md-typeset .admonition,
.md-typeset details {
  font-size: 0.8rem;
  line-height: 1.75;
  padding: 0.8em 1.2em;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
  transition: box-shadow 0.2s ease;
}

.md-typeset .admonition:hover,
.md-typeset details:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

[data-md-color-scheme="slate"] .md-typeset .admonition,
[data-md-color-scheme="slate"] .md-typeset details {
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.md-typeset .admonition-title,
.md-typeset summary {
  font-weight: 600;
  font-size: 0.85rem;
}

/* ---------- Links ---------- */

.md-typeset a {
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 3px;
  transition: color 0.2s ease, text-decoration-style 0.2s ease;
}

.md-typeset a:hover {
  text-decoration-style: solid;
}

/* ---------- Blockquotes ---------- */

.md-typeset blockquote {
  border-left: 4px solid var(--md-primary-fg-color);
  padding: 0.5em 1em;
  margin-left: 0;
  font-style: normal;
  opacity: 0.9;
  border-radius: 0 4px 4px 0;
  background: rgba(81, 107, 232, 0.04);
}

[data-md-color-scheme="slate"] .md-typeset blockquote {
  background: rgba(99, 126, 255, 0.06);
}

/* ---------- Back-to-top Button ---------- */

.md-top {
  border-radius: 50% !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.md-top:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* ---------- Search Overlay ---------- */

.md-search__overlay {
  transition: opacity 0.2s ease;
}

.md-search__form {
  border-radius: 8px;
  transition: box-shadow 0.2s ease;
}

.md-search__form:focus-within {
  box-shadow: 0 0 0 2px var(--md-accent-fg-color);
}

/* ---------- Custom Scrollbar ---------- */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.15);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.25);
}

[data-md-color-scheme="slate"] ::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
}

[data-md-color-scheme="slate"] ::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* ---------- Footer ---------- */

.md-footer {
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

[data-md-color-scheme="slate"] .md-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.md-footer__link {
  transition: background-color 0.2s ease;
}

/* ---------- Dark Mode Adjustments ---------- */

[data-md-color-scheme="slate"] .md-typeset code {
  background-color: rgba(255, 255, 255, 0.07);
}

/* Dark mode: slightly brighter code block background for contrast */
[data-md-color-scheme="slate"] .md-typeset pre > code {
  background-color: rgba(0, 0, 0, 0.3);
}

/* ---------- Tabbed Content ---------- */

/* Smooth tab transitions */
.md-typeset .tabbed-labels {
  box-shadow: 0 1px 0 var(--md-primary-fg-color--light);
}

.md-typeset .tabbed-labels > label {
  transition: color 0.2s ease;
}

/* ---------- Images ---------- */

/* Rounded corners and subtle shadow for images */
.md-typeset img:not([class]) {
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: box-shadow 0.2s ease;
}

.md-typeset img:not([class]):hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

[data-md-color-scheme="slate"] .md-typeset img:not([class]) {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

/* ---------- Print Styles ---------- */

@media print {
  .md-typeset {
    font-size: 11pt;
    line-height: 1.7;
  }
  .md-sidebar,
  .md-header,
  .md-footer,
  .md-top {
    display: none !important;
  }
}