/* ===== CSS Custom Properties ===== */

:root {
  --mdx-hero-gradient-start: #e8eaf6;
  --mdx-hero-gradient-end: #fff;
  --mdx-card-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  --mdx-card-shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.12);
  --mdx-card-border: rgba(0, 0, 0, 0.06);
  --mdx-card-border-hover: var(--md-primary-fg-color);
  --mdx-subtle-text: rgba(0, 0, 0, 0.55);
  --mdx-divider: rgba(0, 0, 0, 0.06);
}

[data-md-color-scheme="slate"] {
  --mdx-hero-gradient-start: #1a1a2e;
  --mdx-hero-gradient-end: var(--md-default-bg-color);
  --mdx-card-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  --mdx-card-shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.35);
  --mdx-card-border: rgba(255, 255, 255, 0.06);
  --mdx-card-border-hover: var(--md-primary-fg-color);
  --mdx-subtle-text: rgba(255, 255, 255, 0.5);
  --mdx-divider: rgba(255, 255, 255, 0.06);
}

/* ===== Animations ===== */

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

.mdx-animate-float {
  animation: float 3s ease-in-out infinite;
}

.mdx-animate-fadein {
  opacity: 0;
  animation: fadeInUp 0.6s ease-out forwards;
}

.mdx-animate-scalein {
  opacity: 0;
  animation: scaleIn 0.5s ease-out forwards;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .mdx-animate-float,
  .mdx-animate-fadein,
  .mdx-animate-scalein {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ===== Hero Section ===== */

.mdx-hero {
  margin: 0;
  color: var(--md-typeset-color);
  background: linear-gradient(180deg, var(--mdx-hero-gradient-start) 0%, var(--mdx-hero-gradient-end) 100%);
}

.mdx-hero__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 5rem 1.5rem 3rem;
  max-width: 48rem;
  margin: 0 auto;
}

.mdx-hero__icon {
  margin-bottom: 1.5rem;
  background: var(--md-primary-fg-color);
  border-radius: 1.5rem;
  width: 5.5rem;
  height: 5.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(63, 81, 181, 0.25);
}

[data-md-color-scheme="slate"] .mdx-hero__icon {
  box-shadow: 0 8px 24px rgba(63, 81, 181, 0.4);
}

.mdx-hero__icon .twemoji svg {
  width: 3rem;
  height: 3rem;
  fill: #fff;
}

.mdx-hero__content h1 {
  margin: 0 0 0.75rem;
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.mdx-hero__tagline {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  color: var(--mdx-subtle-text);
  line-height: 1.6;
  max-width: 32rem;
}

.mdx-hero__content p:not(.mdx-hero__tagline) {
  margin: 0 0 2rem;
  font-size: 0.9rem;
  opacity: 0.5;
}

.mdx-hero__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

.mdx-hero__actions .md-button {
  min-width: 10rem;
  border-radius: 2rem;
  font-weight: 600;
  padding: 0.6rem 1.75rem;
}

.mdx-hero__actions .md-button--primary {
  box-shadow: 0 4px 12px rgba(63, 81, 181, 0.3);
}

/* Gradient accent line */
.mdx-hero__gradient {
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--md-primary-fg-color),
    var(--md-accent-fg-color),
    var(--md-primary-fg-color),
    transparent
  );
  opacity: 0.3;
  margin: 0 auto;
  max-width: 48rem;
}

/* ===== Feature Cards ===== */

.mdx-cards {
  padding: 3rem 1.5rem 4.5rem;
}

.mdx-cards__heading {
  text-align: center;
  margin: 0 0 0.5rem;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--md-typeset-color);
}

.mdx-cards__subheading {
  text-align: center;
  margin: 0 0 2.5rem;
  font-size: 0.9rem;
  color: var(--mdx-subtle-text);
}

.mdx-cards__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  max-width: 52rem;
  margin: 0 auto;
}

.mdx-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem 1.25rem 1.75rem;
  border-radius: 1rem;
  border: 1px solid var(--mdx-card-border);
  background: var(--md-default-bg-color);
  text-decoration: none;
  color: var(--md-typeset-color);
  box-shadow: var(--mdx-card-shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
  overflow: hidden;
}

.mdx-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--md-primary-fg-color);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.mdx-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--mdx-card-shadow-hover);
  border-color: var(--mdx-card-border-hover);
  text-decoration: none;
}

.mdx-card:hover::before {
  opacity: 1;
}

.mdx-card__icon {
  margin-bottom: 1rem;
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--md-primary-fg-color) 10%, transparent);
}

[data-md-color-scheme="slate"] .mdx-card__icon {
  background: color-mix(in srgb, var(--md-primary-fg-color) 15%, transparent);
}

.mdx-card__icon .twemoji svg {
  width: 1.5rem;
  height: 1.5rem;
  fill: var(--md-primary-fg-color);
}

.mdx-card h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  font-weight: 700;
}

.mdx-card p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--mdx-subtle-text);
  line-height: 1.5;
}

.mdx-card__badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.15rem 0.5rem;
  border-radius: 1rem;
  background: color-mix(in srgb, var(--md-primary-fg-color) 12%, transparent);
  color: var(--md-primary-fg-color);
  margin-bottom: 0.75rem;
}

/* ===== Green highlight for section headings (read aloud) ===== */

mark.green {
  background-color: #c8e6c9;
  color: inherit;
  padding: 2px 4px;
  border-radius: 2px;
}

[data-md-color-scheme="slate"] mark.green {
  background-color: #2e7d32;
  color: #e8f5e9;
}

/* ===== Pink highlight for talk titles ===== */

mark.pink {
  background-color: #f8bbd0;
  color: inherit;
  padding: 2px 4px;
  border-radius: 2px;
}

[data-md-color-scheme="slate"] mark.pink {
  background-color: #ad1457;
  color: #fce4ec;
}
/* ===== Blue highlight for light/funny remarks ===== */

mark.blue {
  background-color: #bbdefb;
  color: inherit;
  padding: 2px 4px;
  border-radius: 2px;
}

[data-md-color-scheme="slate"] mark.blue {
  background-color: #1565c0;
  color: #e3f2fd;
}

/* ===== Content-to-footer spacing ===== */

.md-content__inner {
  padding-bottom: 3rem;
}

/* ===== Improved admonition styling ===== */

.md-typeset .admonition,
.md-typeset details {
  border-radius: 0.5rem;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

/* ===== Responsive ===== */

@media screen and (max-width: 60em) {
  .mdx-cards__grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: 36rem;
  }
}

@media screen and (max-width: 40em) {
  .mdx-cards__grid {
    grid-template-columns: 1fr;
    max-width: 22rem;
  }

  .mdx-hero__content {
    padding: 3.5rem 1.25rem 2rem;
  }

  .mdx-hero__content h1 {
    font-size: 2rem;
  }

  .mdx-hero__icon {
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 1.25rem;
  }

  .mdx-hero__icon .twemoji svg {
    width: 2.5rem;
    height: 2.5rem;
  }

  .mdx-hero__actions {
    flex-direction: column;
    width: 100%;
  }

  .mdx-hero__actions .md-button {
    width: 100%;
  }

  .mdx-cards__heading {
    font-size: 1.2rem;
  }
}