/* Restream Chat++ landing page — dark-mode-first */
:root {
  --bg: #0b0e13;
  --bg-elevated: #131720;
  --fg: #e6edf3;
  --fg-dim: #8b949e;
  --accent: #5eead4;
  --accent-hover: #2dd4bf;
  --border: #21262d;
  --plus-color: #f97583;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI",
    Inter, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
}

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Hero */
.hero {
  padding: 80px 0 60px;
  background: radial-gradient(
      ellipse at top,
      rgba(94, 234, 212, 0.08) 0%,
      transparent 60%
    ),
    var(--bg);
  border-bottom: 1px solid var(--border);
}

.hero h1 {
  margin: 0 0 16px 0;
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--accent), var(--plus-color));
  color: #0b0e13;
  border-radius: 14px;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.brand-plus {
  color: var(--plus-color);
}

.tagline {
  font-size: 1.15rem;
  color: var(--fg-dim);
  max-width: 640px;
  margin: 0 0 36px 0;
}

/* CTA row */
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.cta {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 14px 22px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--fg);
  text-decoration: none;
  transition: border-color 120ms ease, transform 120ms ease, background 120ms ease;
  min-width: 168px;
}

.cta:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.cta.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: #0b0e13;
  border-color: transparent;
}

.cta.primary:hover {
  background: linear-gradient(135deg, var(--accent-hover), var(--accent));
}

.cta-label {
  font-weight: 600;
  font-size: 0.98rem;
}

.cta-sub {
  font-size: 0.8rem;
  opacity: 0.8;
  margin-top: 2px;
}

/* Version badge */
.version-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--fg-dim);
}

.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.version-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.version-link:hover {
  text-decoration: underline;
}

/* Sections */
main {
  padding: 60px 0;
}

section {
  margin-bottom: 56px;
}

h2 {
  font-size: 1.5rem;
  margin: 0 0 16px 0;
  letter-spacing: -0.01em;
}

p {
  color: var(--fg-dim);
}

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

code {
  font-family: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--bg-elevated);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.features li {
  padding: 16px 18px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg-dim);
}

.features li strong {
  color: var(--fg);
  display: block;
  margin-bottom: 4px;
  font-weight: 600;
}

.install-steps {
  padding-left: 20px;
  color: var(--fg-dim);
}

.install-steps li {
  margin-bottom: 8px;
}

.note,
.disclaimer {
  font-size: 0.9rem;
  color: var(--fg-dim);
  font-style: italic;
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  margin-top: 40px;
  font-size: 0.9rem;
  color: var(--fg-dim);
  text-align: center;
}

footer a {
  color: var(--fg-dim);
  text-decoration: none;
  margin: 0 6px;
}

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

@media (min-width: 640px) {
  .features {
    grid-template-columns: 1fr 1fr;
  }
}