:root {
  --bg: #0d0d0d;
  --bg-row: #111111;
  --line: #222222;
  --text: #c8c8c8;
  --dim: #555555;
  --bright: #e8e8e8;
  --accent: #39ff88;
  --accent-dim: #1a7a42;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
}

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

html, body {
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
}

body {
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.6;
}

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

a:hover {
  text-decoration: underline;
}

a:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

strong {
  color: var(--bright);
  font-weight: 600;
}

code {
  font-family: var(--mono);
  font-size: inherit;
  color: var(--accent);
}

/* ── layout ─────────────────────────────────────────── */

.page {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 64px;
}

/* ── top bar ─────────────────────────────────────────── */

.topbar {
  display: flex;
  align-items: baseline;
  gap: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 32px;
}

.topbar-name {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bright);
}

.topbar-tag {
  font-size: 11px;
  color: var(--dim);
}

.topbar-links {
  margin-left: auto;
  display: flex;
  gap: 20px;
}

.topbar-links a {
  font-size: 11px;
  color: var(--dim);
}

.topbar-links a:hover {
  color: var(--accent);
  text-decoration: none;
}

/* ── notice band ────────────────────────────────────── */

.notice-band {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 18px 20px;
  margin-bottom: 20px;
  border: 1px solid var(--accent-dim);
  background: rgba(57, 255, 136, 0.05);
}

.notice-label {
  flex: 0 0 auto;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
}

.notice-copy {
  font-size: 12px;
  line-height: 1.7;
  color: var(--bright);
}

.notice-body {
  min-width: 0;
}

.notice-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin-top: 12px;
  padding: 0;
}

.notice-links li {
  border: none;
  padding: 0;
}

.notice-links a {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 10px;
  border: 1px solid var(--accent-dim);
  color: var(--accent);
  text-decoration: none;
}

.notice-links a:hover {
  border-color: var(--accent);
  background: rgba(57, 255, 136, 0.06);
}

/* ── hero ────────────────────────────────────────────── */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 0;
  border: 1px solid var(--line);
  margin-bottom: 0;
}

.hero-copy {
  padding: 28px 32px;
  border-right: 1px solid var(--line);
}

.hero-panel {
  padding: 20px 22px;
}

h1 {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--bright);
  line-height: 1.4;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}

.lede {
  font-size: 12px;
  color: var(--text);
  line-height: 1.7;
  max-width: 72ch;
  margin-bottom: 20px;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 11px;
  cursor: pointer;
  text-decoration: none;
}

.button:hover {
  border-color: var(--dim);
  color: var(--text);
  text-decoration: none;
}

.button.primary {
  border-color: var(--accent-dim);
  color: var(--accent);
}

.button.primary:hover {
  border-color: var(--accent);
  background: rgba(57, 255, 136, 0.06);
}

/* ── hero panel ──────────────────────────────────────── */

.panel-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 12px;
}

.signal-list {
  list-style: none;
}

.signal-list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 0;
  border-top: 1px solid var(--line);
  font-size: 11.5px;
}

.signal-list li:first-child {
  border-top: none;
  padding-top: 0;
}

.signal-list span {
  color: var(--dim);
}

.panel-note {
  margin-top: 16px;
  font-size: 11px;
  color: var(--dim);
  line-height: 1.65;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

/* ── grid ────────────────────────────────────────────── */

.install-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
  white-space: nowrap;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2px;
  margin-top: 24px;
}

article {
  border: 1px solid var(--line);
  padding: 20px 22px;
}

.install-band {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 0;
  border: 1px solid var(--line);
  border-top: none;
  padding: 20px 32px;
  text-align: center;
}

.install-url {
  padding: 0;
  border: none;
  background: transparent;
  color: var(--accent);
  line-height: 1.6;
}

h2 {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

ul {
  list-style: none;
  padding: 0;
}

ul li {
  font-size: 12px;
  color: var(--text);
  padding: 4px 0;
  border-top: 1px solid var(--line);
  line-height: 1.5;
}

ul li:first-child {
  border-top: none;
  padding-top: 0;
}

/* ── footer ──────────────────────────────────────────── */

.footer {
  margin-top: 40px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  color: var(--dim);
  display: flex;
  gap: 24px;
}

/* ── responsive ──────────────────────────────────────── */

@media (max-width: 820px) {
  .notice-band {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }

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

@media (max-width: 480px) {
  .page {
    width: calc(100% - 20px);
    padding-top: 24px;
  }

  h1 {
    font-size: 13px;
  }

  .topbar-links {
    display: none;
  }
}