:root {
  --bg: #0b0f17;
  --panel: #121826;
  --panel-2: #0e1422;
  --border: #1d2740;
  --text: #e6edf7;
  --muted: #8b97ad;
  --accent: #5bc0ff;
  --accent-2: #7c5cff;
  --ok: #36d399;
  --warn: #f5b342;
  --err: #ff5e7e;
  --mono: ui-monospace, "JetBrains Mono", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: radial-gradient(1200px 600px at 80% -10%, rgba(124, 92, 255, 0.14), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(91, 192, 255, 0.1), transparent 60%),
    linear-gradient(180deg, #0b0f17 0%, #070a12 100%);
}

.wrap {
  max-width: 640px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

header.hero {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}

.hero img {
  height: 56px;
  width: auto;
}

.hero h1 {
  margin: 0;
  font-size: 1.65rem;
  letter-spacing: 0.04em;
}

.hero p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.hero p.product {
  color: var(--text);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.hero a {
  color: var(--accent);
}

.steps {
  margin: 0 0 24px;
  padding-left: 1.25rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.steps li {
  margin-bottom: 6px;
}

.steps strong {
  color: var(--text);
}

.banner {
  padding: 12px 14px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.banner.err {
  border: 1px solid rgba(255, 94, 126, 0.4);
  background: rgba(255, 94, 126, 0.08);
  color: var(--err);
}

.banner.warn {
  border: 1px solid rgba(245, 179, 66, 0.45);
  background: rgba(245, 179, 66, 0.08);
  color: var(--warn);
  font-size: 0.85rem;
}

.banner.warn code {
  font-family: var(--mono);
  font-size: 0.8rem;
  word-break: break-all;
}

.hidden {
  display: none !important;
}

.install-panel {
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-2) 100%);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 24px 20px;
  box-shadow: 0 14px 40px -22px rgba(0, 0, 0, 0.65);
}

.row {
  margin-bottom: 14px;
}

.row-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

@media (max-width: 520px) {
  .row-split {
    grid-template-columns: 1fr;
  }
}

label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0a101c;
  color: var(--text);
  font-size: 0.95rem;
}

.installed {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 22px;
}

.installed .label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.mono {
  font-family: var(--mono);
  font-size: 0.9rem;
}

.hint {
  margin: 0 0 8px;
  font-size: 0.85rem;
  color: var(--muted);
  min-height: 1.2em;
}

.status-line {
  margin: 0 0 12px;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0a101c;
  font-size: 0.88rem;
  color: var(--muted);
  min-height: 1.1rem;
}

.status-line.ok {
  border-color: rgba(54, 211, 153, 0.35);
  color: var(--ok);
}

.status-line.err {
  border-color: rgba(255, 94, 126, 0.35);
  color: var(--err);
}

.ack {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 16px 0 18px;
  font-size: 0.88rem;
  color: var(--muted);
  cursor: pointer;
}

.ack input {
  margin-top: 3px;
  width: auto;
}

.install-btn {
  width: 100%;
  padding: 14px 20px;
  border: none;
  border-radius: 10px;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  color: #061018;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  transition: transform 0.12s ease, opacity 0.12s ease;
}

.install-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.install-btn:not(:disabled):hover {
  transform: translateY(-1px);
}

button.linkish {
  border: none;
  background: none;
  color: var(--accent);
  font-size: 0.85rem;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
}

.progress {
  margin-top: 14px;
  height: 8px;
  border-radius: 4px;
  background: #0a101c;
  overflow: hidden;
  display: none;
}

.progress.visible {
  display: block;
}

.progress > div {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.2s ease;
}

.log-details {
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--muted);
}

.log-details summary {
  cursor: pointer;
  user-select: none;
}

.log {
  margin-top: 8px;
  padding: 10px 12px;
  border-radius: 8px;
  background: #070b12;
  border: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.72rem;
  max-height: 160px;
  overflow-y: auto;
  white-space: pre-wrap;
}

footer {
  margin-top: 28px;
  text-align: center;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.6;
}

footer a {
  color: var(--accent);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

.compare-newer {
  color: var(--ok);
  font-weight: 600;
}

.compare-older {
  color: var(--warn);
}