:root {
  --color-canvas: #121214;
  --color-panel: #19191c;
  --color-panel-raised: #1f1f23;
  --color-hairline: #2a2a2e;
  --color-primary: #ededef;
  --color-secondary: #8b8b93;
  --color-tertiary: #55555c;
  --color-accent: oklch(0.43 0.18 29.16);
  --color-success: #3fb950;
  --color-warning: #d4a72c;
  --color-danger: #e5484d;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  min-height: 100%;
}

body {
  min-height: 100vh;
  color: var(--color-primary);
  font-family: "JetBrains Mono", "Cascadia Code", "Consolas", "Segoe UI Mono", monospace;
  font-size: 13px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  background-color: var(--color-canvas);
  background-image:
    linear-gradient(rgba(18, 18, 20, 0.72), rgba(18, 18, 20, 0.9)),
    url("./bg.jpg");
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

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

.page {
  width: min(720px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 56px;
}

.shell {
  border: 1px solid var(--color-hairline);
  background: rgba(25, 25, 28, 0.92);
  backdrop-filter: blur(8px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.titlebar {
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px 0 12px;
  border-bottom: 1px solid var(--color-hairline);
  background: var(--color-panel);
}

.titlebar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  color: var(--color-canvas);
  font-size: 9px;
  font-weight: 700;
}

.titlebar-name {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
}

.titlebar-section {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--color-tertiary);
}

.titlebar-meta {
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--color-tertiary);
}

.banner {
  width: 100%;
  height: 160px;
  object-fit: cover;
  object-position: center;
  display: block;
  border-bottom: 1px solid var(--color-hairline);
  filter: saturate(0.85) contrast(1.05);
}

.content {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.eyebrow {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--color-tertiary);
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(22px, 4vw, 28px);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.2;
}

.hero p {
  max-width: 52ch;
  color: var(--color-secondary);
  font-size: 12.5px;
  line-height: 1.55;
}

.panel {
  border: 1px solid var(--color-hairline);
  background: rgba(18, 18, 20, 0.55);
}

.panel-header {
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  border-bottom: 1px solid var(--color-hairline);
}

.panel-title {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--color-secondary);
}

.panel-meta {
  font-size: 11px;
  color: var(--color-tertiary);
}

.panel-body {
  padding: 14px 12px;
}

.download-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: stretch;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 16px;
  border-radius: 2px;
  border: 1px solid var(--color-hairline);
  background: var(--color-panel-raised);
  color: var(--color-primary);
  font: inherit;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}

.btn:hover {
  border-color: var(--color-tertiary);
}

.btn.primary {
  flex: 1 1 240px;
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-canvas);
}

.btn.primary:hover {
  background: color-mix(in srgb, var(--color-accent) 88%, white);
  border-color: color-mix(in srgb, var(--color-accent) 88%, white);
}

.btn.outline {
  flex: 0 1 auto;
  color: var(--color-secondary);
}

.btn.outline:hover {
  color: var(--color-primary);
  border-color: var(--color-tertiary);
}

.file-meta {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.meta-card {
  border: 1px solid var(--color-hairline);
  background: var(--color-panel-raised);
  padding: 10px;
}

.meta-card .label {
  display: block;
  margin-bottom: 4px;
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--color-tertiary);
  text-transform: uppercase;
}

.meta-card .value {
  font-size: 12px;
  color: var(--color-primary);
  word-break: break-all;
}

.steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.steps li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--color-secondary);
  font-size: 12.5px;
}

.steps .tag {
  flex: 0 0 auto;
  width: 28px;
  color: var(--color-tertiary);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  padding-top: 2px;
}

.trust {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.trust p {
  color: var(--color-secondary);
  font-size: 12.5px;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--color-hairline);
  border-radius: 2px;
  padding: 4px 8px;
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--color-secondary);
  background: var(--color-panel-raised);
}

.badge .dot {
  width: 4px;
  height: 4px;
  background: var(--color-tertiary);
}

.badge.ok .dot {
  background: var(--color-success);
}

.badge.warn .dot {
  background: var(--color-warning);
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 4px;
  color: var(--color-tertiary);
  font-size: 10.5px;
  letter-spacing: 0.08em;
}

.footer a:hover {
  color: var(--color-secondary);
}

.cursor-blink {
  color: var(--color-accent);
  animation: blink 1.1s steps(1) infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

@media (max-width: 640px) {
  .page {
    width: min(100% - 20px, 720px);
    padding: 20px 0 36px;
  }

  .banner {
    height: 120px;
  }

  .file-meta {
    grid-template-columns: 1fr;
  }

  .download-row {
    flex-direction: column;
  }

  .btn.primary,
  .btn.outline {
    width: 100%;
  }

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cursor-blink {
    animation: none;
  }
}