/* ============================================================
   Qt AI Skills — theme
   Riffs on doc.qt.io with a 2026 AI-era polish.

   Source palette (extracted from qt-design-system-1.1.0.css):
     #41cd52  Qt brand green
     #09102b  Qt deep navy (text + dark surfaces)
     #21be2a  secondary green
     #233347  mid-navy
     #182233  surface-navy (dark mode panels)
     #0a6aa1  link blue (legacy)
     #cb0131  Qt red accent
     #e7f4f9  signature light-blue panel
     #beebff  signature light-blue accent panel
     #f6f7f9  off-white surface
   Fonts: Titillium Web (body), JetBrains Mono (code — modern stand-in
   for Droid Sans Mono).
   ============================================================ */

:root {
  /* Qt brand */
  --qt-green:        #41cd52;
  --qt-green-dark:   #21be2a;
  --qt-green-soft:   #5DD96B;
  --qt-navy:         #09102b;
  --qt-navy-mid:     #233347;
  --qt-navy-soft:    #182233;
  --qt-red:          #cb0131;
  --qt-blue-link:    #0a6aa1;
  --qt-panel:        #e7f4f9;
  --qt-panel-strong: #beebff;
  --qt-surface:      #f6f7f9;
  --qt-rule:         #e6e7e9;

  /* Material primary/accent — Qt green */
  --md-primary-fg-color:        var(--qt-green);
  --md-primary-fg-color--light: var(--qt-green-soft);
  --md-primary-fg-color--dark:  var(--qt-green-dark);
  --md-accent-fg-color:         var(--qt-green-dark);

  /* Body text in Qt navy — like doc.qt.io */
  --md-default-fg-color:        var(--qt-navy);
  --md-default-fg-color--light: #2a3344;
  --md-typeset-color:           var(--qt-navy);

  /* Links: Qt blue in body, green for nav/brand surfaces */
  --md-typeset-a-color:         var(--qt-blue-link);

  /* Code accents */
  --md-code-bg-color:           var(--qt-surface);
  --md-code-fg-color:           var(--qt-navy);

  /* Header height fix for the glass effect */
  --md-header--shadow:          0 1px 0 rgba(9, 16, 43, 0.06);
}

/* ---------- Dark mode ---------- */
[data-md-color-scheme="slate"] {
  --md-default-bg-color:           var(--qt-navy);
  --md-default-bg-color--light:    var(--qt-navy-soft);
  --md-default-bg-color--lighter:  var(--qt-navy-mid);
  --md-default-bg-color--lightest: #2c3a52;

  --md-default-fg-color:           #e8eef5;
  --md-default-fg-color--light:    #c9d1de;
  --md-typeset-color:               #e8eef5;

  --md-typeset-a-color:             var(--qt-green-soft);
  --md-accent-fg-color:             var(--qt-green-soft);

  --md-code-bg-color:               #0f1a33;
  --md-code-fg-color:                #d6e4f5;
}

/* ============================================================
   Typography — Titillium Web everywhere, like doc.qt.io
   ============================================================ */
body, .md-typeset {
  font-family: "Titillium Web", -apple-system, BlinkMacSystemFont,
               "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-feature-settings: "kern", "liga";
}

.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4 {
  font-family: "Titillium Web", sans-serif;
  font-weight: 300;        /* Qt headings are light-weight */
  letter-spacing: -0.01em;
  color: var(--md-default-fg-color);
}

.md-typeset h1 {
  font-weight: 300;
  font-size: 2.4rem;
  letter-spacing: -0.025em;
  line-height: 1.1;
  background: linear-gradient(
    100deg,
    var(--qt-navy)   0%,
    var(--qt-navy)  55%,
    var(--qt-green) 100%
  );
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

[data-md-color-scheme="slate"] .md-typeset h1 {
  background: linear-gradient(
    100deg,
    #ffffff 0%,
    #ffffff 50%,
    var(--qt-green-soft) 100%
  );
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

.md-typeset h2 {
  font-weight: 600;
  font-size: 1.6rem;
  border-bottom: 2px solid var(--qt-rule);
  padding-bottom: 0.3rem;
  margin-top: 2rem;
}
[data-md-color-scheme="slate"] .md-typeset h2 {
  border-bottom-color: var(--qt-navy-mid);
}

/* ============================================================
   Header — Qt-navy glass with green hairline (the AI riff)
   ============================================================ */
.md-header {
  background: linear-gradient(
    180deg,
    rgba(9, 16, 43, 0.92) 0%,
    rgba(9, 16, 43, 0.86) 100%
  );
  color: #ffffff;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  box-shadow: 0 1px 0 rgba(65, 205, 82, 0.35),
              0 8px 24px -12px rgba(9, 16, 43, 0.4);
}

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

.md-tabs {
  background: var(--qt-navy);
  color: #ffffff;
}

.md-tabs__link {
  opacity: 0.78;
  transition: opacity 0.2s, color 0.2s;
}
.md-tabs__link:hover,
.md-tabs__link--active {
  opacity: 1;
  color: var(--qt-green);
}

/* ============================================================
   Links — animated underline (subtle 2026 polish)
   ============================================================ */
.md-typeset a {
  font-weight: 600;
  text-decoration: none;
  background-image: linear-gradient(var(--qt-green), var(--qt-green));
  background-position: 0 100%;
  background-repeat: no-repeat;
  background-size: 0% 1.5px;
  transition: background-size 0.3s cubic-bezier(0.19, 1, 0.22, 1),
              color 0.2s;
  padding-bottom: 1px;
}
.md-typeset a:hover {
  background-size: 100% 1.5px;
  color: var(--qt-green-dark);
}
[data-md-color-scheme="slate"] .md-typeset a:hover {
  color: var(--qt-green-soft);
}

/* ============================================================
   Code — Qt-style with subtle green ring on hover
   ============================================================ */
.md-typeset code,
.md-typeset pre {
  font-family: "JetBrains Mono", "Droid Sans Mono", "Fira Code",
               Consolas, monospace;
  font-feature-settings: "calt", "liga";
}
.md-typeset code {
  border-radius: 4px;
  padding: 0.1em 0.35em;
  font-size: 0.88em;
}
.md-typeset pre > code {
  border-radius: 8px;
  border: 1px solid var(--qt-rule);
  transition: border-color 0.25s, box-shadow 0.25s;
}
.md-typeset pre:hover > code {
  border-color: rgba(65, 205, 82, 0.45);
  box-shadow: 0 0 0 4px rgba(65, 205, 82, 0.06);
}
[data-md-color-scheme="slate"] .md-typeset pre > code {
  border-color: var(--qt-navy-mid);
}
[data-md-color-scheme="slate"] .md-typeset pre:hover > code {
  border-color: rgba(65, 205, 82, 0.55);
  box-shadow: 0 0 0 4px rgba(65, 205, 82, 0.1);
}

/* ============================================================
   Tables — green header row, like doc.qt.io
   ============================================================ */
.md-typeset table:not([class]) {
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--qt-rule);
}
.md-typeset table:not([class]) th {
  background: linear-gradient(
    180deg,
    var(--qt-green) 0%,
    var(--qt-green-dark) 100%
  );
  color: #ffffff;
  font-weight: 600;
  border: none;
}
.md-typeset table:not([class]) tr:nth-child(even) td {
  background: var(--qt-surface);
}
[data-md-color-scheme="slate"] .md-typeset table:not([class]) tr:nth-child(even) td {
  background: rgba(255, 255, 255, 0.03);
}

/* ============================================================
   Admonitions — Qt's signature light-blue panels for info,
   green for tips, with a soft glow accent
   ============================================================ */
.md-typeset .admonition,
.md-typeset details {
  border-radius: 8px;
  border-left: 4px solid var(--qt-green);
  box-shadow: 0 1px 2px rgba(9, 16, 43, 0.04),
              0 4px 16px -8px rgba(9, 16, 43, 0.08);
}

.md-typeset .admonition.note,
.md-typeset .admonition.info,
.md-typeset details.note,
.md-typeset details.info {
  border-left-color: #0a6aa1;
  background: var(--qt-panel);
}
[data-md-color-scheme="slate"] .md-typeset .admonition.note,
[data-md-color-scheme="slate"] .md-typeset .admonition.info {
  background: rgba(10, 106, 161, 0.12);
}

.md-typeset .admonition.warning,
.md-typeset details.warning {
  border-left-color: #f1a74e;
}
.md-typeset .admonition.danger,
.md-typeset details.danger {
  border-left-color: var(--qt-red);
}

/* AI-flavoured callout — use ?> !!! abstract or !!! quote */
.md-typeset .admonition.abstract,
.md-typeset details.abstract {
  border-left: 4px solid transparent;
  background:
    linear-gradient(var(--md-default-bg-color), var(--md-default-bg-color)) padding-box,
    linear-gradient(135deg, var(--qt-green), #00d4ff) border-box;
  border: 1px solid transparent;
}

/* ============================================================
   Hero card — front page only, 2026 mesh-gradient flair
   Use class .qt-hero on a div in markdown via attr_list
   ============================================================ */
.md-typeset .qt-hero {
  position: relative;
  padding: 3rem 2.5rem;
  margin: 1rem 0 2rem;
  border-radius: 14px;
  background:
    radial-gradient(at 20% 20%, rgba(65, 205, 82, 0.18)  0px, transparent 55%),
    radial-gradient(at 80% 30%, rgba(0, 212, 255, 0.12)  0px, transparent 50%),
    radial-gradient(at 60% 90%, rgba(203, 1, 49,  0.08)  0px, transparent 50%),
    var(--qt-navy);
  color: #ffffff;
  overflow: hidden;
  box-shadow: 0 1px 0 rgba(65, 205, 82, 0.2) inset,
              0 20px 60px -20px rgba(9, 16, 43, 0.4);
}
.md-typeset .qt-hero h1,
.md-typeset .qt-hero h2 {
  color: #ffffff;
  background: none;
  -webkit-text-fill-color: #ffffff;
  margin-top: 0;
}
.md-typeset .qt-hero h1 {
  font-size: 2.8rem;
  font-weight: 300;
  letter-spacing: -0.03em;
}
.md-typeset .qt-hero p {
  font-size: 1.1rem;
  opacity: 0.85;
  max-width: 56ch;
}
.md-typeset .qt-hero a {
  color: var(--qt-green-soft);
  background-image: linear-gradient(var(--qt-green-soft), var(--qt-green-soft));
}

/* Subtle animated grain to the hero — pure CSS, no JS */
.md-typeset .qt-hero::after {
  content: "";
  position: absolute;
  inset: -50%;
  background:
    conic-gradient(from 90deg at 50% 50%,
      rgba(65, 205, 82, 0)   0deg,
      rgba(65, 205, 82, 0.08) 90deg,
      rgba(65, 205, 82, 0)   180deg,
      rgba(0, 212, 255, 0.06) 270deg,
      rgba(65, 205, 82, 0)   360deg);
  animation: qtSpin 24s linear infinite;
  pointer-events: none;
  z-index: 0;
}
.md-typeset .qt-hero > * {
  position: relative;
  z-index: 1;
}
@keyframes qtSpin {
  to { transform: rotate(1turn); }
}

@media (prefers-reduced-motion: reduce) {
  .md-typeset .qt-hero::after { animation: none; }
}

/* ============================================================
   Skill / feature cards — used on the Skills overview
   ============================================================ */
.md-typeset .qt-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin: 1.25rem 0;
}
.md-typeset .qt-card {
  display: block;
  padding: 1.25rem 1.4rem;
  border-radius: 10px;
  background: var(--md-default-bg-color);
  border: 1px solid var(--qt-rule);
  text-decoration: none !important;
  color: var(--md-default-fg-color);
  background-image: none !important;
  transition: transform 0.25s cubic-bezier(0.19, 1, 0.22, 1),
              border-color 0.25s, box-shadow 0.25s;
}
.md-typeset .qt-card:hover {
  transform: translateY(-2px);
  border-color: var(--qt-green);
  box-shadow: 0 1px 0 rgba(65, 205, 82, 0.15) inset,
              0 12px 30px -16px rgba(9, 16, 43, 0.3),
              0 0 0 4px rgba(65, 205, 82, 0.08);
}
[data-md-color-scheme="slate"] .md-typeset .qt-card {
  border-color: var(--qt-navy-mid);
}
.md-typeset .qt-card strong {
  display: block;
  color: var(--qt-green-dark);
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
}
[data-md-color-scheme="slate"] .md-typeset .qt-card strong {
  color: var(--qt-green-soft);
}

/* ============================================================
   Misc polish
   ============================================================ */
.md-typeset hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--qt-rule) 20%,
    var(--qt-rule) 80%,
    transparent 100%);
}

.md-footer {
  background: var(--qt-navy);
}
.md-footer-meta {
  background: #050a1c;
}

/* Search box — subtle green focus ring */
.md-search__form {
  border-radius: 6px;
  transition: box-shadow 0.25s;
}
.md-search__form:focus-within {
  box-shadow: 0 0 0 3px rgba(65, 205, 82, 0.35);
}

/* === doc.qt.io chrome bridge ===
   The qt-design-system header (b-header) is injected via overrides/.
   doc.qt.io's online.css applies many global rules; neutralise the ones
   that fight Material so only the header styling carries through. */

/* Pin the qt header above Material's, full width */
.qds-page-header {
  position: relative;
  z-index: 5;
}

/* online.css sets body/html backgrounds and font; restore Material defaults */
body.qt-design-system,
body {
  background: var(--md-default-bg-color) !important;
  font-family: var(--md-text-font-family, "Titillium Web", sans-serif) !important;
}

/* online.css forces .container/.content widths that break Material's grid */
.md-main .container,
.md-content .container {
  width: auto !important;
  max-width: none !important;
  margin: 0 !important;
  padding: 0 !important;
}

/* Push Material's header below the qt brand bar */
.md-header {
  top: 0;
  position: sticky;
}

/* === dark-mode bridge for qt brand chrome ===
   Material's dark mode toggles [data-md-color-scheme="slate"] on <html>.
   qt-design-system header/footer use their own theme system; mirror it. */

[data-md-color-scheme="slate"] .qds-page-header,
[data-md-color-scheme="slate"] .b-header,
[data-md-color-scheme="slate"] #footer,
[data-md-color-scheme="slate"] .l-footer {
  background-color: #1a1a1a !important;
  color: var(--md-default-fg-color) !important;
}

[data-md-color-scheme="slate"] .b-header a,
[data-md-color-scheme="slate"] .b-header .c-link,
[data-md-color-scheme="slate"] #footer a,
[data-md-color-scheme="slate"] .l-footer a,
[data-md-color-scheme="slate"] .c-footer-secondary-navigation,
[data-md-color-scheme="slate"] .c-footer-secondary-navigation__group-notice {
  color: var(--md-default-fg-color) !important;
}

/* Logos: doc.qt.io's PNGs are designed for white bg.
   Invert them in dark mode so they read on dark chrome. */
[data-md-color-scheme="slate"] .b-header__logo img,
[data-md-color-scheme="slate"] .c-logo-footer img {
  filter: invert(1) hue-rotate(180deg);
}

/* Download Qt button: keep brand green visible */
[data-md-color-scheme="slate"] .b-header .c-button,
[data-md-color-scheme="slate"] .l-footer .c-btn {
  background-color: #41cd52 !important;
  color: #000 !important;
  border-color: #41cd52 !important;
}

/* Kill the bright divider line between qt header and Material header in dark mode */
[data-md-color-scheme="slate"] .md-header,
[data-md-color-scheme="slate"] .md-tabs {
  border-bottom: 0 !important;
  box-shadow: none !important;
}
[data-md-color-scheme="slate"] .qds-page-header,
[data-md-color-scheme="slate"] .b-header {
  border-bottom: 0 !important;
  box-shadow: none !important;
}

/* Links inside admonitions in slate need a darker green to remain readable
   on the few admonition variants that keep light backgrounds. */
[data-md-color-scheme="slate"] .md-typeset .admonition.warning a,
[data-md-color-scheme="slate"] .md-typeset .admonition.note a,
[data-md-color-scheme="slate"] .md-typeset .admonition.important a {
  color: #006400;
}

/* online2.css / qt-design-system set body color rules that bleed into
   Material's content area, leaving black-on-dark in slate mode. Force
   Material's content typography to use its own scheme tokens. */
[data-md-color-scheme="slate"] .md-content,
[data-md-color-scheme="slate"] .md-typeset,
[data-md-color-scheme="slate"] .md-typeset p,
[data-md-color-scheme="slate"] .md-typeset li,
[data-md-color-scheme="slate"] .md-typeset td,
[data-md-color-scheme="slate"] .md-typeset h1,
[data-md-color-scheme="slate"] .md-typeset h2,
[data-md-color-scheme="slate"] .md-typeset h3,
[data-md-color-scheme="slate"] .md-typeset h4,
[data-md-color-scheme="slate"] .md-typeset h5,
[data-md-color-scheme="slate"] .md-typeset h6 {
  color: var(--md-default-fg-color) !important;
}
[data-md-color-scheme="slate"] .md-nav,
[data-md-color-scheme="slate"] .md-nav__link,
[data-md-color-scheme="slate"] .md-nav__title {
  color: var(--md-default-fg-color) !important;
}

/* online2.css forces light backgrounds on warning/note/important admonitions
   even in slate mode. Force their inner text dark only for those variants;
   other types (abstract/info/tip/example/quote) keep Material's slate text. */
[data-md-color-scheme="slate"] .md-typeset .admonition.warning,
[data-md-color-scheme="slate"] .md-typeset .admonition.note,
[data-md-color-scheme="slate"] .md-typeset .admonition.important {
  color: #1a1a1a !important;
}
[data-md-color-scheme="slate"] .md-typeset .admonition.warning p,
[data-md-color-scheme="slate"] .md-typeset .admonition.warning li,
[data-md-color-scheme="slate"] .md-typeset .admonition.note p,
[data-md-color-scheme="slate"] .md-typeset .admonition.note li,
[data-md-color-scheme="slate"] .md-typeset .admonition.important p,
[data-md-color-scheme="slate"] .md-typeset .admonition.important li {
  color: #1a1a1a !important;
}
[data-md-color-scheme="slate"] .md-typeset .admonition.warning > .admonition-title,
[data-md-color-scheme="slate"] .md-typeset .admonition.note > .admonition-title,
[data-md-color-scheme="slate"] .md-typeset .admonition.important > .admonition-title {
  color: #1a1a1a !important;
}

/* online2.css adds a grey border/background to <pre> that fights Material's
   own code block styling. Reset to let Material handle code blocks. */
.md-typeset pre,
.md-typeset pre > code {
  background: var(--md-code-bg-color) !important;
  border: 0 !important;
  box-shadow: none !important;
}
.md-typeset .highlight pre {
  background: transparent !important;
}
.md-typeset code {
  border: 0 !important;
}