/* Material Theme Override — Brand-Polkadot Reskin
 * Re-skins MkDocs Material's CSS variables so the entire UI matches the
 * Glassy family (dark base, amber accent, glass surface, brand wordmark).
 * Strategy: Material exposes ~80 CSS custom properties. We override the
 * subset that controls the visible UI without rewriting the HTML structure.
 *
 * Material's CSS variable cheat sheet:
 *   --md-primary-fg-color       header bg
 *   --md-primary-bg-color       header text
 *   --md-primary-fg-color--light header text hover
 *   --md-accent-fg-color        accent (links, focus, selection marker)
 *   --md-accent-bg-color        accent bg
 *   --md-accent-fg-color--transparent  accent transparent
 *   --md-typeset-a-color        link color
 *   --md-typeset-a-color--light link hover
 *   --md-typeset-mark-color     search highlight
 *   --md-typeset-kbd-color      kbd
 *   --md-default-bg-color       page bg
 *   --md-default-fg-color       page text
 *   --md-default-fg-color--light secondary text
 *   --md-default-fg-color--lighter tertiary text
 *   --md-default-bg-color--light code block bg
 *   --md-admonition-fg-color    admonition text
 *   --md-admonition-bg-color    admonition bg
 *   --md-code-bg-color          inline code bg
 *   --md-code-fg-color          inline code fg
 *   --md-code-hl-color          code line highlight
 *   --md-shadow-z1 / z2 / z3    elevation shadows
 *   --md-footer-bg-color        footer bg
 *   --md-footer-fg-color        footer text
 *   --md-footer-fg-color--light footer text hover
 *   --md-header-bg-color        header bg (alias for primary fg)
 *   --md-tabs-bg-color          top tabs bg
 *   --md-search-bg-color        search overlay bg
 *   --md-search-bg-color--light search result bg
 *   --md-search-fg-color        search text
 *   --md-search-mark-bg-color   search highlight (alias)
 */

:root,
[data-md-color-scheme="default"],
[data-md-color-scheme="slate"] {
  /* Always dark. The light scheme is intentionally not exposed. */
  color-scheme: dark;

  /* ─── Primary (header / brand surfaces) — dark glass, not indigo ────── */
  --md-primary-fg-color:               #050505;
  --md-primary-fg-color--light:        rgba(241, 245, 249, 0.55);
  --md-primary-fg-color--dark:         rgba(241, 245, 249, 0.85);
  --md-primary-bg-color:               #f1f5f9;
  --md-primary-bg-color--light:        rgba(255, 255, 255, 0.85);

  /* ─── Accent (links, focus, highlights) — AMBER ─────────────────────── */
  --md-accent-fg-color:                #fbbf24;
  --md-accent-fg-color--transparent:   rgba(251, 191, 36, 0.10);
  --md-accent-bg-color:                #050505;
  --md-accent-bg-color--light:         rgba(251, 191, 36, 0.14);

  /* ─── Default surfaces (page bg = dark base) ───────────────────────── */
  --md-default-bg-color:               #050505;
  --md-default-bg-color--light:        rgba(15, 23, 42, 0.55);
  --md-default-bg-color--lighter:      rgba(15, 23, 42, 0.30);
  --md-default-bg-color--lightest:     rgba(15, 23, 42, 0.15);
  --md-default-fg-color:               #f1f5f9;
  --md-default-fg-color--light:        #cbd5e1;
  --md-default-fg-color--lighter:      #94a3b8;
  --md-default-fg-color--lightest:     #64748b;

  /* ─── Typeset (links) — amber ─────────────────────────────────────── */
  --md-typeset-a-color:                #fbbf24;
  --md-typeset-a-color--light:         #fde047;
  --md-typeset-mark-color:             rgba(251, 191, 36, 0.22);
  --md-typeset-strong-color:           #f8fafc;
  --md-typeset-kbd-color:              #fde047;
  --md-typeset-kbd-border-color:       rgba(251, 191, 36, 0.28);
  --md-typeset-kbd-bg-color:           rgba(2, 6, 23, 0.85);
  --md-typeset-table-color--light:     rgba(251, 191, 36, 0.06);

  /* ─── Code blocks — amber-tinted on dark ───────────────────────────── */
  --md-code-bg-color:                  rgba(2, 6, 23, 0.85);
  --md-code-bg-color--light:           rgba(2, 6, 23, 0.55);
  --md-code-fg-color:                  #fde047;
  --md-code-hl-color:                  rgba(251, 191, 36, 0.20);
  --md-code-hl-function-color:         #fde047;
  --md-code-hl-keyword-color:          #fbbf24;
  --md-code-hl-string-color:           #6ee7b7;
  --md-code-hl-number-color:           #f59e0b;
  --md-code-hl-comment-color:          #64748b;
  --md-code-hl-name-color:             #f1f5f9;
  --md-code-hl-operator-color:         #f1f5f9;
  --md-code-hl-punctuation-color:      #94a3b8;
  --md-code-hl-constant-color:         #fbbf24;
  --md-code-hl-generic-color:          #f1f5f9;
  --md-code-hl-variable-color:         #f1f5f9;

  /* ─── Admonitions — amber-tinted ──────────────────────────────────── */
  --md-admonition-fg-color:            #f1f5f9;
  --md-admonition-bg-color:            rgba(251, 191, 36, 0.05);
  --md-admonition-fg-color--note:      #f1f5f9;
  --md-admonition-bg-color--note:      rgba(148, 163, 184, 0.08);
  --md-admonition-fg-color--abstract:  #f1f5f9;
  --md-admonition-bg-color--abstract:  rgba(148, 163, 184, 0.08);
  --md-admonition-fg-color--info:      #fde047;
  --md-admonition-bg-color--info:      rgba(251, 191, 36, 0.08);
  --md-admonition-fg-color--tip:       #6ee7b7;
  --md-admonition-bg-color--tip:       rgba(110, 231, 183, 0.08);
  --md-admonition-fg-color--success:   #6ee7b7;
  --md-admonition-bg-color--success:   rgba(110, 231, 183, 0.08);
  --md-admonition-fg-color--question:  #fde047;
  --md-admonition-bg-color--question:  rgba(251, 191, 36, 0.08);
  --md-admonition-fg-color--warning:   #fbbf24;
  --md-admonition-bg-color--warning:   rgba(251, 191, 36, 0.10);
  --md-admonition-fg-color--failure:   #fb7185;
  --md-admonition-bg-color--failure:   rgba(251, 113, 133, 0.10);
  --md-admonition-fg-color--danger:    #fb7185;
  --md-admonition-bg-color--danger:    rgba(251, 113, 133, 0.10);
  --md-admonition-fg-color--bug:       #fb7185;
  --md-admonition-bg-color--bug:       rgba(251, 113, 133, 0.10);
  --md-admonition-fg-color--example:   #c084fc;
  --md-admonition-bg-color--example:   rgba(192, 132, 252, 0.08);
  --md-admonition-fg-color--quote:     #f1f5f9;
  --md-admonition-bg-color--quote:     rgba(148, 163, 184, 0.08);

  /* ─── Header — dark glass with amber accent on active tab ─────────── */
  --md-header-bg-color:                rgba(5, 5, 5, 0.70);
  --md-header-bg-color--backdrop:      rgba(5, 5, 5, 0.85);
  --md-header-fg-color:                #f1f5f9;
  --md-header-fg-color--primary:       #f1f5f9;
  --md-header-fg-color--accent:        #fbbf24;

  /* ─── Tabs (top nav) — amber active underline ─────────────────────── */
  --md-tabs-bg-color:                  rgba(5, 5, 5, 0.70);
  --md-tabs-fg-color:                  #f1f5f9;
  --md-tabs-fg-color--active:          #fbbf24;
  --md-tabs-fg-color--hover:           #fde047;
  --md-tabs-indicator-color:           #fbbf24;

  /* ─── Footer — dark, amber hover ──────────────────────────────────── */
  --md-footer-bg-color:                #050505;
  --md-footer-bg-color--dark:          #020617;
  --md-footer-fg-color:                #94a3b8;
  --md-footer-fg-color--light:         #f1f5f9;
  --md-footer-fg-color--lighter:       #f1f5f9;

  /* ─── Search — dark glass ─────────────────────────────────────────── */
  --md-search-bg-color:                rgba(5, 5, 5, 0.85);
  --md-search-bg-color--light:         rgba(251, 191, 36, 0.10);
  --md-search-bg-color--lightest:      rgba(251, 191, 36, 0.04);
  --md-search-fg-color:                #f1f5f9;
  --md-search-fg-color--light:         #94a3b8;
  --md-search-fg-color--placeholder:   #64748b;
  --md-search-mark-color:              rgba(251, 191, 36, 0.32);
  --md-search-mark-fg-color:           #050505;
  --md-search-icon-color:              #fbbf24;

  /* ─── Shadows (lighter than Material default — we sit on dark base) ── */
  --md-shadow-z1:                      0 0 30px rgba(0, 0, 0, 0.35);
  --md-shadow-z2:                      0 4px 24px rgba(0, 0, 0, 0.45);
  --md-shadow-z3:                      0 12px 48px rgba(0, 0, 0, 0.55);

  /* ─── Typography ─────────────────────────────────────────────────── */
  --md-text-font:                      var(--glassy-font-body);
  --md-typeset-font:                   var(--glassy-font-body);
  --md-typeset-display-font:           var(--glassy-font-display);
  --md-code-font:                      var(--glassy-font-mono);
}

/* ─── Header — glass surface ───────────────────────────────────────────── */
.md-header {
  background: rgba(5, 5, 5, 0.70);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border-bottom: 1px solid var(--glassy-accent-soft);
  box-shadow: none;
  color: var(--md-header-fg-color);
}
.md-header__title {
  color: var(--glassy-ink-50);
  font-family: var(--glassy-font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.md-header__button.md-logo {
  /* Glassy gem logo */
  color: var(--glassy-accent);
}
.md-header__button.md-logo img {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  margin-right: 0.5rem;
  vertical-align: middle;
}
.md-header__button.md-logo::before {
  /* fallback hidden when img loads */
  content: '';
  display: none;
}

/* ─── Tabs — amber underline, hover, active ───────────────────────────── */
.md-tabs {
  background: rgba(5, 5, 5, 0.70);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border-bottom: 1px solid var(--glassy-accent-soft);
  color: var(--md-tabs-fg-color);
}
.md-tabs__link {
  color: var(--glassy-ink-300);
  font-weight: 500;
  transition: color 0.15s ease;
}
.md-tabs__link:hover {
  color: var(--glassy-accent-light);
}
.md-tabs__link--active,
.md-tabs__item--active .md-tabs__link {
  color: var(--glassy-accent);
  font-weight: 700;
}
.md-tabs__item {
  position: relative;
}
.md-tabs__item--active::after {
  background: var(--glassy-accent);
  height: 3px;
  border-radius: 2px;
  box-shadow: 0 0 16px var(--glassy-accent-glow);
}

/* ─── Side rails (article left/right nav) — amber accents ─────────────── */
.md-nav {
  font-size: 0.78rem;
  color: var(--glassy-ink-300);
}
.md-nav__link {
  color: var(--glassy-ink-300);
  transition: color 0.15s ease;
}
.md-nav__link:hover {
  color: var(--glassy-accent-light);
}
.md-nav__link--active,
.md-nav__link--active * {
  color: var(--glassy-accent);
  font-weight: 600;
}
.md-nav__title {
  color: var(--glassy-ink-50);
  font-weight: 700;
  font-family: var(--glassy-font-display);
}

/* ─── Main content area — dark base + readable typography ─────────────── */
.md-main {
  background: transparent;
}
.md-content {
  color: var(--glassy-ink-200);
}
.md-content__inner {
  padding-top: 2rem;
}
.md-typeset {
  color: var(--glassy-ink-200);
  font-size: 0.85rem;
  line-height: 1.7;
}
.md-typeset h1 {
  font-family: var(--glassy-font-display);
  color: var(--glassy-ink-50);
  font-weight: 800;
  letter-spacing: -0.025em;
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}
.md-typeset h2 {
  font-family: var(--glassy-font-display);
  color: var(--glassy-ink-50);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 1.5rem;
  margin-top: 2.5rem;
}
.md-typeset h3 {
  font-family: var(--glassy-font-display);
  color: var(--glassy-ink-100);
  font-weight: 700;
  font-size: 1.2rem;
  margin-top: 2rem;
}
.md-typeset h4 {
  font-family: var(--glassy-font-display);
  color: var(--glassy-ink-100);
  font-weight: 600;
  font-size: 1rem;
  margin-top: 1.5rem;
}
.md-typeset p {
  margin: 0.85rem 0;
  color: var(--glassy-ink-200);
}
.md-typeset strong {
  color: var(--glassy-ink-50);
  font-weight: 600;
}
.md-typeset a {
  color: var(--glassy-accent);
  text-decoration: underline;
  text-decoration-color: rgba(251, 191, 36, 0.30);
  text-underline-offset: 3px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}
.md-typeset a:hover {
  color: var(--glassy-accent-light);
  text-decoration-color: var(--glassy-accent-light);
}

/* Permalinks (¶) — amber on hover */
.md-typeset .headerlink {
  color: rgba(251, 191, 36, 0.30);
  transition: color 0.15s ease;
}
.md-typeset h1:hover .headerlink,
.md-typeset h2:hover .headerlink,
.md-typeset h3:hover .headerlink,
.md-typeset h4:hover .headerlink {
  color: var(--glassy-accent);
}

/* ─── Tables — amber accent on header rows ─────────────────────────────── */
.md-typeset table:not([class]) {
  background: rgba(15, 23, 42, 0.40);
  border: 1px solid var(--glassy-accent-soft);
  border-radius: 0.75rem;
  overflow: hidden;
  font-size: 0.82rem;
}
.md-typeset table:not([class]) th {
  background: rgba(251, 191, 36, 0.08);
  color: var(--glassy-ink-50);
  font-weight: 700;
  border-bottom: 1px solid var(--glassy-accent-soft);
}
.md-typeset table:not([class]) td,
.md-typeset table:not([class]) th {
  border-color: rgba(148, 163, 184, 0.12);
  padding: 0.65rem 0.85rem;
}
.md-typeset table:not([class]) tr:hover td {
  background: rgba(251, 191, 36, 0.04);
}

/* ─── Horizontal rules — subtle amber gradient ─────────────────────────── */
.md-typeset hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--glassy-accent-soft) 50%,
    transparent 100%);
  margin: 2.5rem 0;
}

/* ─── Blockquote — amber left border ───────────────────────────────────── */
.md-typeset blockquote {
  border-left: 3px solid var(--glassy-accent);
  background: rgba(251, 191, 36, 0.04);
  padding: 0.75rem 1.25rem;
  border-radius: 0 0.5rem 0.5rem 0;
  color: var(--glassy-ink-300);
  font-style: italic;
}

/* ─── Code blocks — amber-tinted on dark ───────────────────────────────── */
.md-typeset code {
  background: rgba(2, 6, 23, 0.85);
  color: var(--glassy-accent-light);
  border: 1px solid var(--glassy-accent-soft);
  padding: 0.1rem 0.4rem;
  border-radius: 6px;
  font-family: var(--glassy-font-mono);
  font-size: 0.85em;
}
.md-typeset pre {
  background: rgba(2, 6, 23, 0.85);
  border: 1px solid var(--glassy-accent-soft);
  border-radius: var(--glassy-radius-lg);
  box-shadow: 0 0 60px rgba(0, 0, 0, 0.45);
}
.md-typeset pre code {
  background: transparent;
  border: none;
  padding: 0;
  color: var(--glassy-ink-100);
}

/* ─── Admonitions — amber-tinted ───────────────────────────────────────── */
.md-typeset .admonition,
.md-typeset details {
  border: 1px solid var(--glassy-accent-soft);
  background: rgba(251, 191, 36, 0.05);
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  margin: 1.25rem 0;
  font-size: 0.85rem;
}
.md-typeset .admonition-title,
.md-typeset summary {
  color: var(--glassy-accent-light);
  font-weight: 700;
  font-family: var(--glassy-font-display);
  letter-spacing: 0.01em;
}
.md-typeset .admonition.note,
.md-typeset .admonition.abstract {
  border-color: rgba(148, 163, 184, 0.18);
  background: rgba(148, 163, 184, 0.05);
}
.md-typeset .admonition.note .admonition-title,
.md-typeset .admonition.abstract .admonition-title {
  color: var(--glassy-ink-100);
}
.md-typeset .admonition.success,
.md-typeset .admonition.tip {
  border-color: rgba(110, 231, 183, 0.28);
  background: rgba(110, 231, 183, 0.06);
}
.md-typeset .admonition.success .admonition-title,
.md-typeset .admonition.tip .admonition-title {
  color: #6ee7b7;
}
.md-typeset .admonition.warning {
  border-color: var(--glassy-accent-glow);
  background: rgba(251, 191, 36, 0.08);
}
.md-typeset .admonition.warning .admonition-title {
  color: var(--glassy-accent);
}
.md-typeset .admonition.danger,
.md-typeset .admonition.failure,
.md-typeset .admonition.bug {
  border-color: rgba(251, 113, 133, 0.28);
  background: rgba(251, 113, 133, 0.06);
}
.md-typeset .admonition.danger .admonition-title,
.md-typeset .admonition.failure .admonition-title,
.md-typeset .admonition.bug .admonition-title {
  color: #fb7185;
}

/* ─── Mermaid diagrams — dark theme ───────────────────────────────────── */
.md-typeset .mermaid {
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid var(--glassy-accent-soft);
  border-radius: 0.75rem;
  padding: 1.25rem;
}

/* ─── Search overlay — dark glass ──────────────────────────────────────── */
.md-search {
  background: rgba(5, 5, 5, 0.85);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
}
.md-search__overlay {
  background: rgba(0, 0, 0, 0.55);
}
.md-search__inner {
  background: transparent;
}
.md-search__form {
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid var(--glassy-accent-soft);
  border-radius: 0.75rem;
}
.md-search__input + .md-search__icon {
  color: var(--glassy-accent);
}
.md-search__input::placeholder {
  color: var(--glassy-ink-500);
}
.md-search__output {
  background: rgba(5, 5, 5, 0.90);
  border: 1px solid var(--glassy-accent-soft);
  border-radius: 0.75rem;
}
.md-search-result__link {
  color: var(--glassy-ink-200);
}
.md-search-result__link:hover {
  background: rgba(251, 191, 36, 0.08);
}
.md-search-result mark {
  background: var(--glassy-accent);
  color: #1a1300;
  padding: 0 0.1rem;
  border-radius: 3px;
}

/* ─── Footer — dark, amber hover ───────────────────────────────────────── */
.md-footer {
  background: #050505;
  border-top: 1px solid var(--glassy-accent-soft);
  color: var(--glassy-ink-400);
}
.md-footer-meta {
  background: #020617;
  border-top: 1px solid rgba(148, 163, 184, 0.08);
  color: var(--glassy-ink-500);
  padding: 0.75rem 0;
  font-size: 0.7rem;
}
.md-footer-meta__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0 1rem;
  max-width: var(--glassy-max-width);
  margin: 0 auto;
}
.md-copyright {
  color: var(--glassy-ink-500);
  flex: 1 1 auto;
  margin: 0;
  max-width: none;
}
.md-copyright a {
  color: var(--glassy-ink-300);
  text-decoration: none;
  transition: color 0.15s ease;
}
.md-copyright a:hover {
  color: var(--glassy-accent);
  text-decoration: underline;
  text-decoration-color: var(--glassy-accent-soft);
}
.md-social {
  padding: 0;
  margin: 0;
}
.md-social__link {
  color: var(--glassy-ink-400);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 0.5rem;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.md-social__link:hover {
  color: var(--glassy-accent);
  border-color: var(--glassy-accent-soft);
}
/* Hide the default "Made with Material for MkDocs" credit */
.md-footer-meta__inner .md-copyright__highlight {
  display: none;
}

/* ─── Skip link (a11y) — amber ─────────────────────────────────────────── */
.md-skip {
  background: var(--glassy-accent);
  color: #1a1300;
  font-weight: 700;
  border-radius: 0.5rem;
  padding: 0.5rem 1rem;
}

/* ─── TOC (right rail) — amber focus ───────────────────────────────────── */
.md-nav--secondary .md-nav__link--active {
  color: var(--glassy-accent);
}

/* ─── Back-to-top button — amber ───────────────────────────────────────── */
.md-top {
  background: var(--glassy-accent);
  color: #1a1300;
  border-radius: 0.75rem;
  box-shadow: 0 0 24px var(--glassy-accent-glow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.md-top:hover {
  background: var(--glassy-accent-hover);
  transform: translateY(-2px);
}

/* ─── Aurora background layer (declared in main.html, positioned here) ─── */
.glassy-aurora {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.glassy-aurora__orb {
  position: absolute;
  border-radius: 9999px;
  filter: blur(120px);
  mix-blend-mode: screen;
  will-change: transform;
}
.glassy-aurora__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.40);
  backdrop-filter: blur(100px);
  -webkit-backdrop-filter: blur(100px);
}

/* ─── Hero section (on home page) — glass card with amber border ───────── */
.glassy-hero {
  position: relative;
  padding: 5rem 1.5rem 4rem;
  margin: -2rem 0 3rem;
  text-align: center;
  background: rgba(5, 5, 5, 0.40);
  border: 1px solid var(--glassy-accent-soft);
  border-radius: var(--glassy-radius-xl);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  box-shadow: 0 0 80px rgba(0, 0, 0, 0.5),
              0 0 60px var(--glassy-accent-glow);
  overflow: hidden;
}
.glassy-hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1.05;
  margin: 0.5rem 0;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--glassy-ink-50);
}
.glassy-hero .h1-emphasis {
  background-image: linear-gradient(90deg, #60a5fa 0%, #c084fc 50%, #6ee7b7 100%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 30px rgba(168, 85, 247, 0.4));
}
.glassy-hero p.lead {
  font-size: 1.15rem;
  color: var(--glassy-ink-300);
  max-width: 38rem;
  margin: 1rem auto 0;
  line-height: 1.6;
}

/* ─── Section divider (transparent gradient) ───────────────────────────── */
.glassy-section-title {
  margin-top: 3rem;
  margin-bottom: 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--glassy-accent);
}

/* ─── Article card (for hero column on home) — amber accent border ────── */
.glassy-article-card {
  display: block;
  padding: 1.5rem;
  background: rgba(5, 5, 5, 0.40);
  border: 1px solid var(--glassy-accent-soft);
  border-radius: var(--glassy-radius-lg);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  box-shadow: 0 0 80px rgba(0, 0, 0, 0.5);
  margin: 1rem 0;
}
.glassy-article-card:hover {
  transform: translateY(-2px);
  border-color: var(--glassy-accent-glow);
  box-shadow: 0 0 80px rgba(0, 0, 0, 0.5),
              0 0 60px var(--glassy-accent-glow);
  color: inherit;
}
.glassy-article-card h3 {
  margin: 0 0 0.4rem 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--glassy-ink-50);
  font-family: var(--glassy-font-display);
}
.glassy-article-card p {
  margin: 0;
  color: var(--glassy-ink-300);
  font-size: 0.875rem;
  line-height: 1.5;
}

/* ─── Tag chips (inline metadata) — amber pill ─────────────────────────── */
.glassy-tag {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: 999px;
  background: rgba(251, 191, 36, 0.10);
  color: var(--glassy-accent);
  border: 1px solid var(--glassy-accent-soft);
  letter-spacing: 0.02em;
}

/* ─── Responsive — keep hero readable on mobile ────────────────────────── */
@media (max-width: 760px) {
  .glassy-hero {
    padding: 3rem 1rem 2.5rem;
  }
  .glassy-hero h1 {
    font-size: 2.2rem;
  }
  .glassy-hero p.lead {
    font-size: 1rem;
  }
  .md-header__title {
    font-size: 0.95rem;
  }
}