:root {
  --color-bg: #05070b;
  --color-bg-secondary: #090d13;
  --color-text: #eef2f7;
  --color-text-secondary: #9ba6b5;
  --color-text-tertiary: #667180;
  --color-accent: #8bf5d2;
  --color-cyan: #f3b87a;
  --color-gradient: linear-gradient(135deg, #8bf5d2, #f3b87a);
  --color-surface: rgba(255, 255, 255, 0.04);
  --color-border: rgba(255, 255, 255, 0.08);
  --shadow-glow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --radius-lg: 20px;
  --radius-full: 9999px;
  --font-main: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--color-accent) transparent;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-main);
  background:
    radial-gradient(circle at top left, rgba(0, 255, 224, 0.12), transparent 28%),
    radial-gradient(circle at top right, rgba(167, 139, 250, 0.16), transparent 32%),
    linear-gradient(180deg, #04060a 0%, var(--color-bg) 38%, #070b11 100%);
  color: var(--color-text);
  line-height: 1.6;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at center, black, transparent 80%);
  pointer-events: none;
  opacity: 0.5;
}

a {
  color: inherit;
  text-decoration: none;
}

.gradient-text {
  background: var(--color-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.versions-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 10;
  padding-top: var(--safe-top);
  background: rgba(0, 0, 0, 0.78);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.versions-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
}

.versions-logo {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: var(--color-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.versions-back {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s var(--ease-out);
}

.versions-back:hover {
  color: var(--color-text);
  border-color: rgba(167, 139, 250, 0.35);
  transform: translateY(-1px);
}

.versions-main {
  max-width: 1120px;
  margin: 0 auto;
  padding: calc(7.5rem + var(--safe-top)) max(1.5rem, var(--safe-right)) 4rem max(1.5rem, var(--safe-left));
}

.versions-hero {
  padding: 2rem 0 3rem;
}

.versions-kicker {
  margin: 0 0 1rem;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.versions-hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 0.95;
}

.versions-intro {
  max-width: 680px;
  margin: 0;
  color: var(--color-text-secondary);
  font-size: clamp(1rem, 1rem + 0.3vw, 1.125rem);
}

.versions-shell {
  position: relative;
  padding: 2rem;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-glow);
  overflow: hidden;
}

.versions-shell::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 255, 224, 0.06), transparent 45%, rgba(167, 139, 250, 0.1));
  pointer-events: none;
}

.versions-shell-header {
  position: relative;
  z-index: 1;
  margin-bottom: 2rem;
}

.versions-shell-header h2 {
  margin: 0 0 0.35rem;
  font-size: 1.5rem;
}

.versions-shell-header p {
  margin: 0;
  color: var(--color-text-secondary);
}

.versions-status {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1.25rem 1.4rem;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

.versions-status-error {
  display: block;
}

.versions-status-error h3 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  color: var(--color-text);
}

.versions-status-error p {
  margin: 0 0 1rem;
}

.versions-spinner {
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.15);
  border-top-color: var(--color-cyan);
  animation: versions-spin 0.8s linear infinite;
}

.versions-fallback-link,
.version-sha {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-accent);
}

.versions-fallback-link:hover,
.version-sha:hover {
  color: var(--color-cyan);
}

.versions-timeline {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 0 0 0 2rem;
  list-style: none;
}

.versions-timeline::before {
  content: '';
  position: absolute;
  top: 0.4rem;
  bottom: 0.4rem;
  left: 0.4rem;
  width: 2px;
  background: linear-gradient(180deg, rgba(0, 255, 224, 0.9), rgba(167, 139, 250, 0.2), rgba(167, 139, 250, 0.95));
}

.version-entry {
  position: relative;
  padding: 1.4rem 1.5rem 1.5rem;
  margin-bottom: 1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.version-entry::before {
  content: '';
  position: absolute;
  top: 1.6rem;
  left: -1.88rem;
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  background: var(--color-gradient);
  box-shadow: 0 0 0 8px rgba(0, 0, 0, 0.75);
}

.version-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 4.25rem;
  padding: 0.35rem 0.7rem;
  margin-bottom: 0.9rem;
  border-radius: var(--radius-full);
  background: rgba(167, 139, 250, 0.14);
  color: var(--color-text);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.version-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.65rem;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

.version-date {
  color: var(--color-text-secondary);
}

.version-message {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text);
}

.versions-footer {
  padding: 0 max(1.5rem, var(--safe-right)) calc(2rem + var(--safe-bottom)) max(1.5rem, var(--safe-left));
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

html::-webkit-scrollbar {
  width: 6px;
}

html::-webkit-scrollbar-track {
  background: transparent;
}

html::-webkit-scrollbar-thumb {
  background: var(--color-accent);
  border-radius: var(--radius-full);
}

html::-webkit-scrollbar-thumb:hover {
  background: #b89dfc;
}

@keyframes versions-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 768px) {
  .versions-nav-inner {
    padding: 0.9rem 1rem;
  }

  .versions-main {
    padding: calc(6.5rem + var(--safe-top)) max(1rem, var(--safe-right)) 3rem max(1rem, var(--safe-left));
  }

  .versions-shell {
    padding: 1.4rem;
    border-radius: 22px;
  }

  .versions-timeline {
    padding-left: 1.6rem;
  }

  .version-entry {
    padding: 1.2rem;
  }

  .version-entry::before {
    left: -1.47rem;
  }

  .version-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
  }

  .versions-back {
    padding: 0.65rem 0.85rem;
    font-size: 0.9rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}