/* === Hero === */
  .changelog-hero {
    position: relative;
    padding: var(--space-24) 0 var(--space-16);
    text-align: center;
    overflow: hidden;
  }

  .hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
  }

  .orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: orbFloat 20s ease-in-out infinite;
  }

  .orb-1 {
    width: 450px;
    height: 450px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    top: -150px;
    right: -100px;
  }

  .orb-2 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, #3b82f6, #6366f1);
    bottom: -100px;
    left: -100px;
    animation-delay: -10s;
  }

  @keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(20px, -20px) scale(1.05); }
    50% { transform: translate(-10px, 10px) scale(0.95); }
    75% { transform: translate(15px, 15px) scale(1.02); }
  }

  .grid-lines {
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
  }

  .hero-content {
    position: relative;
    z-index: 1;
  }

  .hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: var(--font-extrabold);
    letter-spacing: var(--tracking-tighter);
    margin: var(--space-4) 0;
    line-height: 1.1;
  }

  .title-line {
    display: block;
    color: var(--text-primary);
  }

  .title-gradient {
    display: block;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 5s ease infinite;
  }

  @keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
  }

  .hero-subtitle {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-8);
    line-height: var(--leading-relaxed);
  }

  .hero-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
  }

  /* === Changelog List === */
  .changelog-list .container {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--space-12);
    align-items: start;
  }

  @media (max-width: 1024px) {
    .changelog-list .container {
      grid-template-columns: 1fr;
    }
    .changelog-sidebar {
      display: none;
    }
  }

  .changelog-sidebar {
    position: sticky;
    top: calc(var(--header-height) + var(--space-6));
  }

  .version-nav {
    background: var(--surface-1);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    margin-bottom: var(--space-6);
  }

  .version-nav h2 {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-3);
  }

  .version-nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
  }

  .version-nav a {
    display: block;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--duration-fast);
  }

  .version-nav a:hover {
    background: var(--surface-2);
    color: var(--text-primary);
  }

  .subscribe-card {
    background: var(--brand-gradient-subtle);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
  }

  .subscribe-card h2 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
  }

  .subscribe-card p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
  }

  .subscribe-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
  }

  .subscribe-form input {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    background: var(--surface-0);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--text-primary);
  }

  .subscribe-form button {
    width: 100%;
  }

  /* === Release Card === */
  .release-card {
    background: var(--surface-1);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    margin-bottom: var(--space-6);
    transition: all var(--duration-fast);
  }

  .release-card:hover {
    border-color: var(--border-default);
  }

  .release-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
    gap: var(--space-3);
  }

  .release-version {
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }

  .version-number {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
  }

  .version-badge {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    border-radius: var(--radius-full);
  }

  .release-date {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
  }

  .release-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-5);
  }

  .highlight-tag {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    background: var(--surface-2);
    border-radius: var(--radius-md);
    color: var(--text-primary);
  }

  .release-changes {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
  }

  .change-item {
    display: flex;
    gap: var(--space-3);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
  }

  .change-type {
    font-weight: var(--font-medium);
    min-width: 80px;
    flex-shrink: 0;
  }

  .change-description {
    color: var(--text-secondary);
  }

  /* Reveal animation */
  .reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    transition-delay: var(--reveal-delay, 0ms);
  }

  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }