/* ============================================
   Buttons — Teal accent, spring hover
   ============================================ */
:root {
  --button-color: #3CBCB4;
  --youtube-red: #FF0000;
}

.md-button {
  border-radius: 0.5em !important;
  background-color: color-mix(in srgb, var(--button-color) 8%, transparent) !important;
  color: var(--button-color) !important;
  border: 1.5px solid color-mix(in srgb, var(--button-color) 40%, transparent) !important;
  stroke: var(--button-color);
  opacity: 1;
  font-size: 0.85em;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 0.3em 1em;
  transition: all 0.3s var(--dn-ease-spring, cubic-bezier(0.34, 1.56, 0.64, 1));
  position: relative;
  overflow: hidden;
}

.md-button::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, color-mix(in srgb, var(--button-color) 6%, transparent));
  opacity: 0;
  transition: opacity 0.3s ease-out;
}

.md-button:hover,
.md-button:focus {
  background-color: color-mix(in srgb, var(--button-color) 15%, transparent) !important;
  border-color: var(--button-color) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--button-color) 20%, transparent);
}

.md-button:hover::before {
  opacity: 1;
}

/* YouTube */
a[href*="youtube.com"].md-button,
a[href*="youtu.be"].md-button {
  --btn-c: var(--youtube-red);
  background-color: color-mix(in srgb, var(--btn-c) 8%, transparent) !important;
  color: var(--btn-c) !important;
  border: 1.5px solid color-mix(in srgb, var(--btn-c) 40%, transparent) !important;
  stroke: var(--btn-c);
}

a[href*="youtube.com"].md-button:hover,
a[href*="youtube.com"].md-button:focus,
a[href*="youtu.be"].md-button:hover,
a[href*="youtu.be"].md-button:focus {
  background-color: color-mix(in srgb, var(--youtube-red) 30%, transparent) !important;
  border-color: var(--btn-c) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--btn-c) 20%, transparent);
}