/* ---------- VOLTQUANT LIGHT ---------- */
:root,
[data-md-color-scheme="voltquant"] {
  --md-text-font: "Neue Montreal", Arial, sans-serif;
  --md-code-font: "Fira Code", monospace;

  /* brand hues */
  --v-green: #52B230;
  --v-cyan:  #00d4ff;
  --v-teal:  #1BA19F;

  /* material tokens */
  --md-primary-fg-color:        var(--v-teal);
  --md-accent-fg-color:         var(--v-green);
  --md-default-bg-color:        #ffffff;
  --md-default-fg-color:        #0b1b1f;
  --md-code-bg-color:           #0f172a0f;          
  --md-typeset-a-color:         var(--v-teal);

  /* buttons */
  --v-btn-bg: #0b1b1f;
  --v-btn-fg: #ffffff;
}

/* ---------- VOLTQUANT DARK ---------- */
[data-md-color-scheme="voltquant-dark"] {
  --md-default-bg-color:        #0f2a2e;
  --md-default-fg-color:        #ffffff;
  --md-typeset-color:           #ffffff;
  --md-primary-fg-color:        #8be9e3;
  --md-accent-fg-color:         #5fffd0;
  --md-code-bg-color:           #0b2326;
  --md-typeset-a-color:         #8be9e3;

  --v-btn-bg: #e7f6f3;
  --v-btn-fg: #0b1b1f;
}

/* ---------- TYPOGRAPHY & BASE ---------- */
@font-face {
  font-family: 'Neue Montreal';
  src: url('../fonts/NeueMontreal-Light.woff2') format('woff2');
  font-weight: 300;
  font-style: normal;
}
@font-face {
  font-family: 'Neue Montreal';
  src: url('../fonts/NeueMontreal-LightItalic.woff2') format('woff2');
  font-weight: 300;
  font-style: italic;
}
@font-face {
  font-family: 'Neue Montreal';
  src: url('../fonts/NeueMontreal-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
}
@font-face {
  font-family: 'Neue Montreal';
  src: url('../fonts/NeueMontreal-Italic.woff2') format('woff2');
  font-weight: 400;
  font-style: italic;
}
@font-face {
  font-family: 'Neue Montreal';
  src: url('../fonts/NeueMontreal-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
}
@font-face {
  font-family: 'Neue Montreal';
  src: url('../fonts/NeueMontreal-MediumItalic.woff2') format('woff2');
  font-weight: 500;
  font-style: italic;
}
@font-face {
  font-family: 'Neue Montreal';
  src: url('../fonts/NeueMontreal-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
}
@font-face {
  font-family: 'Neue Montreal';
  src: url('../fonts/NeueMontreal-BoldItalic.woff2') format('woff2');
  font-weight: 700;
  font-style: italic;
}

/* Typography for Markdown content */
.md-typeset {
  color: var(--md-typeset-color);
  font-family: var(--md-text-font);
}
.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4,
.md-typeset h5,
.md-typeset h6 {
  color: var(--md-default-fg-color);
  font-family: "Neue Montreal", Arial, sans-serif;
  letter-spacing: 0.2px;
}
.md-typeset h1 { font-weight: 500; }
.md-typeset h2, h3 { font-weight: 400; }
.md-typeset h4 { font-weight: 800; }

/* Links */
.md-typeset a {
  color: var(--md-typeset-a-color);
  text-decoration: none;
}
.md-typeset a:hover { text-decoration: underline; }

[data-md-color-scheme="voltquant-dark"] .md-typeset h1,
[data-md-color-scheme="voltquant-dark"] .md-typeset h2 { opacity: .92; }

/* ---------- BUTTONS ---------- */

.v-btn {
  font-family: "Neue Montreal", Arial, sans-serif;
  font-weight: 500;
  letter-spacing: .2px;
  border-radius: .75rem;
  padding: .7rem 1rem;
  transition:
    background-color .4s ease,
    color .4s ease,
    border-color 4s ease;
  border: 2px solid var(--md-default-fg-color);
  background: transparent;
  color: var(--md-default-fg-color);
}

.v-btn:hover {
  background: var(--md-default-fg-color);
  color: var(--md-default-bg-color);
  border-color: var(--md-default-fg-color);
}

.v-btn.secondary {
  background: var(--md-default-fg-color);
  color: var(--md-default-bg-color);
  border: 2px solid var(--md-default-fg-color);
}

/* Secondary hover = goes back to “transparent” style */
.v-btn.secondary:hover {
  background: transparent;
  color: var(--md-default-fg-color);
  border-color: var(--md-default-fg-color);
}

/* ---------- CONTENT BLOCKS ---------- */
.text-highlight {
  padding: 1rem;
  border-left: 2px solid var(--v-green, #52B230);
}
.text-tip {
  padding: 1rem;
  background-color: #F4FDEF;
  color: #0b1b1f;
}

.image-container {
  display: inline-block;
  border-radius: 25px;
  border: 1px solid #B1B1B1;
  margin: 1.5rem 0;
  box-shadow: 0 4px 4px rgba(0, 0, 0, 0.25);
  overflow: hidden;
}
.image-container-button { border-radius: 5px; max-width: 200px; }
.image-container-element { border-radius: 5px; max-width: 500px; }
.image-container img { display: block; width: 100%; height: auto; }

/* ---------- FAQ ---------- */
.md-typeset details.faq {
  border: 0;
  border-bottom: 1px solid color-mix(in oklab, var(--md-default-fg-color) 18%, transparent);
  margin: 0;
  padding: .25rem 0;
  background: transparent !important;
  box-shadow: none;
  color: #ffffff !important;
}
.md-typeset details.faq > summary {
  display: flex;
  align-items: center;
  padding: .9rem 0;
  margin: 0;
  border-radius: 0;
  font-weight: 600;
  cursor: pointer;
  background: transparent !important;
  color: var(--md-default-fg-color) !important;
}
.md-typeset details.faq > summary .md-typeset__icon { display: none !important; }
.md-typeset details.faq > summary::after {
  content: "";
  flex-shrink: 0;
  margin-left: auto;
  border-style: solid;
  border-width: 0.25em 0.25em 0 0;
  display: inline-block;
  padding: 0.25em;
  transition: transform 0.2s;
  color: var(--md-default-fg-color) !important;
}
.md-typeset details.faq[open] > summary::after { transform: rotate(135deg); }
.md-typeset details.faq > div,
.md-typeset details.faq > p { padding: .25rem 0 1rem; }
.md-typeset details.faq > summary::before {
  display: none !important;
  content: none !important;
  color: #ffffff !important;
}
.md-typeset details.faq,
.md-typeset details.faq * {
  color: var(--md-default-fg-color) !important;
  color: #ffffff !important;
}
@media (prefers-color-scheme: dark) {
  .md-typeset details.faq,
  .md-typeset details.faq * {
    color: #ffffff !important;
  }
}

/* ---------- ACTION GRID & CARDS ---------- */
.v-action-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
  align-items: stretch;
  justify-items: stretch;
}
@media (min-width: 900px) {
  .v-action-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.v-card--wide { grid-column: 1 / -1; }
.v-action-grid > a.v-card { width: 100%; justify-self: stretch; }

.v-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  text-align: center;
  text-decoration: none;
  border: 2px solid #b1b1b1;
  border-radius: 24px;
  box-shadow: 0 4px 4px rgba(0,0,0,.25);
  padding: 2rem 1.5rem;
  background: transparent;
  color: var(--md-default-fg-color);
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.v-action-grid a:hover { text-decoration: none; }
.v-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--md-accent-fg-color) 60%, #b1b1b1);
  box-shadow: 0 8px 18px rgba(0,0,0,.18);
}
.v-card__icon {
  display: grid;
  place-items: center;
  width: 64px; height: 64px;
  border: 2px solid black;
  border-radius: 12px;
}
.v-card__icon svg { width: 36px; height: 36px; }
.v-card__title {
  font-weight: 700;
  font-size: clamp(1.05rem, 0.6vw + 0.9rem, 1.35rem);
  margin-top: .5rem;
}
.v-card__desc {
  max-width: 52ch;
  line-height: 1.45;
  opacity: .9;
  font-size: clamp(.8rem, 0.3vw + .7rem, .8rem);
}
:root[data-md-color-scheme="voltquant-dark"] .v-card {
  border-color: #2b3b3d;
  box-shadow: 0 4px 20px rgba(0,0,0,.35);
}

/* ---------- FOOTER ---------- */
.md-footer,
.md-footer-meta {
  background-color: #0C2427;
}

/* ---------- BACK TO TOP ---------- */
.md-top {
  background-color: var(--v-btn-bg);
  color: var(--v-btn-fg);
  border-radius: .75rem;
  transition: background-color .2s ease, color .2s ease, box-shadow .2s ease;
}
.md-top:hover {
  background-color: var(--v-btn-bg);
  color: #0b1b1f;
  box-shadow: 0 4px 12px rgba(0,0,0,.25);
}