/* ==========================================================================
   mlego — Clean Hardware / Maker Showcase Theme
   ========================================================================== */

:root,
[data-md-color-scheme="default"] {
  --md-primary-fg-color: #0f766e;
  --md-primary-fg-color--light: #14b8a6;
  --md-primary-fg-color--dark: #115e59;
  --md-accent-fg-color: #0d9488;
  --md-accent-fg-color--transparent: rgba(13, 148, 136, 0.12);

  --md-typeset-a-color: #0f766e;

  --mlego-surface: #f8fafc;
  --mlego-surface-elevated: #ffffff;
  --mlego-border: rgba(15, 23, 42, 0.1);
  --mlego-border-hover: rgba(13, 148, 136, 0.45);
  --mlego-text-muted: #475569;
  --mlego-badge-bg: rgba(15, 118, 110, 0.08);
  --mlego-badge-fg: #0f766e;
  --mlego-badge-border: rgba(15, 118, 110, 0.22);
  --mlego-hero-gradient: linear-gradient(135deg, rgba(15, 118, 110, 0.08) 0%, rgba(20, 184, 166, 0.03) 50%, rgba(132, 204, 22, 0.06) 100%);
  --mlego-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.06), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
  --mlego-shadow-hover: 0 12px 28px -4px rgba(15, 23, 42, 0.12), 0 4px 10px -2px rgba(13, 148, 136, 0.08);
}

[data-md-color-scheme="slate"] {
  --md-default-bg-color: #0d1117;
  --md-default-bg-color--light: #161b22;
  --md-default-bg-color--lighter: #21262d;
  --md-default-fg-color: #e6edf3;
  --md-default-fg-color--light: #8b949e;
  --md-default-fg-color--lighter: #6e7681;

  --md-primary-fg-color: #2dd4bf;
  --md-primary-fg-color--light: #5eead4;
  --md-primary-fg-color--dark: #14b8a6;
  --md-accent-fg-color: #2dd4bf;
  --md-accent-fg-color--transparent: rgba(45, 212, 191, 0.15);

  --md-typeset-color: #e6edf3;
  --md-typeset-a-color: #2dd4bf;

  --mlego-surface: #161b22;
  --mlego-surface-elevated: #1c2128;
  --mlego-border: rgba(240, 246, 252, 0.12);
  --mlego-border-hover: rgba(45, 212, 191, 0.5);
  --mlego-text-muted: #9ca3af;
  --mlego-badge-bg: rgba(45, 212, 191, 0.12);
  --mlego-badge-fg: #5eead4;
  --mlego-badge-border: rgba(45, 212, 191, 0.3);
  --mlego-hero-gradient: linear-gradient(135deg, rgba(20, 184, 166, 0.14) 0%, rgba(17, 24, 39, 0.6) 55%, rgba(132, 204, 22, 0.08) 100%);
  --mlego-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.35);
  --mlego-shadow-hover: 0 14px 32px -4px rgba(0, 0, 0, 0.5), 0 0 16px -2px rgba(45, 212, 191, 0.15);
}

/* Header & Navigation Bar Refinement */
.md-header {
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--mlego-border);
}

.md-tabs {
  border-bottom: 1px solid var(--mlego-border);
}

[data-md-color-scheme="slate"] .md-header {
  background-color: #161b22;
  color: #f0f6fc;
}

[data-md-color-scheme="slate"] .md-tabs {
  background-color: #161b22;
  color: #f0f6fc;
}

/* Link Visibility & High Contrast in Dark Mode */
.md-typeset a {
  color: var(--md-typeset-a-color);
  word-break: break-word;
  transition: color 0.15s ease, text-decoration 0.15s ease;
}

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

[data-md-color-scheme="slate"] .md-typeset a {
  color: #2dd4bf;
}

[data-md-color-scheme="slate"] .md-typeset a:visited {
  color: #2dd4bf;
}

[data-md-color-scheme="slate"] .md-typeset a:hover {
  color: #5eead4;
  text-decoration: underline;
}

/* Active navigation links in sidebar & TOC */
[data-md-color-scheme="slate"] .md-nav__link--active {
  color: #2dd4bf;
  font-weight: 600;
}

[data-md-color-scheme="slate"] .md-nav__link:hover {
  color: #5eead4;
}

/* Typography & Headings */
.md-typeset h1 {
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 0.6em;
}

.md-typeset h2 {
  font-weight: 700;
  letter-spacing: -0.015em;
  border-bottom: 1px solid var(--mlego-border);
  padding-bottom: 0.35rem;
  margin-top: 2rem;
}

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

/* Hero Section */
.mlego-hero {
  background: var(--mlego-hero-gradient);
  border: 1px solid var(--mlego-border);
  border-radius: 1rem;
  padding: 2rem 2.25rem;
  margin-bottom: 2rem;
  box-shadow: var(--mlego-shadow);
}

.mlego-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  background: var(--mlego-badge-bg);
  color: var(--mlego-badge-fg);
  border: 1px solid var(--mlego-badge-border);
  margin-bottom: 0.85rem;
}

.mlego-hero h1 {
  margin: 0 0 0.5rem 0;
  font-size: 2.1rem;
  line-height: 1.15;
}

.mlego-hero p {
  font-size: 0.95rem;
  color: var(--mlego-text-muted);
  max-width: 52rem;
  margin: 0 0 1.25rem 0;
  line-height: 1.6;
}

.mlego-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.mlego-hero .md-button {
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 0.8rem;
  padding: 0.55em 1.25em;
  transition: all 0.15s ease;
}

[data-md-color-scheme="slate"] .mlego-hero .md-button:not(.md-button--primary) {
  background-color: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.18);
  color: #f0f6fc;
}

[data-md-color-scheme="slate"] .mlego-hero .md-button:not(.md-button--primary):hover {
  background-color: rgba(45, 212, 191, 0.15);
  border-color: #2dd4bf;
  color: #2dd4bf;
}

/* Hardware Spec Badges */
.spec-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.5rem 0 1.5rem 0;
}

.spec-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--md-code-font-family);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 0.4rem;
  background: var(--mlego-badge-bg);
  color: var(--mlego-badge-fg);
  border: 1px solid var(--mlego-badge-border);
}

.spec-badge--status {
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
  border-color: rgba(16, 185, 129, 0.3);
}

/* Grid Cards Enhancement */
.md-typeset .grid.cards > ul > li,
.md-typeset .grid.cards > ol > li,
.md-typeset .grid > .card {
  background: var(--mlego-surface-elevated);
  border: 1px solid var(--mlego-border);
  border-radius: 0.75rem;
  box-shadow: var(--mlego-shadow);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  padding: 1.1rem 1.25rem;
}

.md-typeset .grid.cards > ul > li:hover,
.md-typeset .grid.cards > ol > li:hover,
.md-typeset .grid > .card:hover {
  transform: translateY(-2px);
  box-shadow: var(--mlego-shadow-hover);
  border-color: var(--mlego-border-hover);
}

.md-typeset .grid.cards a {
  color: var(--md-typeset-a-color);
  font-weight: 600;
}

[data-md-color-scheme="slate"] .md-typeset .grid.cards a {
  color: #2dd4bf;
}

[data-md-color-scheme="slate"] .md-typeset .grid.cards a:hover {
  color: #5eead4;
  text-decoration: underline;
}

.md-typeset .grid.cards > ul > li img {
  border-radius: 0.5rem;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  margin-bottom: 0.5rem;
  border: 1px solid var(--mlego-border);
}

/* Image Galleries & Hardware Photos */
.md-typeset img {
  border-radius: 0.6rem;
  border: 1px solid var(--mlego-border);
  box-shadow: var(--mlego-shadow);
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin: 1rem 0 1.5rem 0;
}

.image-grid p {
  margin: 0;
}

.image-grid img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.image-grid img:hover {
  transform: scale(1.015);
  border-color: var(--mlego-border-hover);
}

.image-grid--tall img {
  height: 280px;
}

.image-grid--contain img {
  object-fit: contain;
  background: var(--mlego-surface);
  padding: 0.5rem;
}

/* Tables (Pinouts, Scan Frequencies, Comparisons) */
.md-typeset table:not([class]) {
  border: 1px solid var(--mlego-border);
  border-radius: 0.6rem;
  overflow: hidden;
  box-shadow: var(--mlego-shadow);
}

.md-typeset table:not([class]) th {
  background: var(--mlego-surface);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
}

/* Admonitions & Details Polish */
.md-typeset .admonition,
.md-typeset details {
  border-radius: 0.6rem;
  box-shadow: var(--mlego-shadow);
}

/* Code Blocks */
.md-typeset pre > code {
  border-radius: 0.5rem;
}