/* Join Beta — Phase 3A.6 (extends site.css) */

.beta-page {
  --beta-y: 48px;
  --beta-y-lg: 72px;
  --beta-gap: 24px;
  --beta-gap-md: 30px;
}

.beta-hero {
  background: var(--hero-gradient);
  padding: var(--beta-y) 0 var(--beta-y-lg);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.beta-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 55% at 50% 0%, rgba(91, 79, 232, 0.08) 0%, transparent 65%),
    radial-gradient(ellipse 45% 40% at 90% 80%, rgba(0, 224, 194, 0.06) 0%, transparent 55%);
  pointer-events: none;
}

.beta-hero-inner {
  position: relative;
  max-width: 42rem;
  margin: 0 auto;
}

.beta-hero-eyebrow {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
}

.beta-hero-title {
  font-size: clamp(2.125rem, 5.5vw, 3.25rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-5);
}

.beta-hero-lead {
  font-size: clamp(1.0625rem, 2.3vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 40rem;
  margin: 0 auto var(--beta-gap);
}

.beta-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
}

.beta-section {
  padding: var(--beta-y) 0;
}

.beta-section-alt {
  background: var(--section-alt);
}

.beta-prose {
  max-width: 40rem;
  margin: 0 auto;
}

.beta-prose-wide {
  max-width: 48rem;
  margin: 0 auto;
}

.beta-prose p,
.beta-prose-wide p {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-4);
}

.beta-prose p:last-child,
.beta-prose-wide p:last-child {
  margin-bottom: 0;
}

.beta-prose .section-lead,
.beta-prose-wide .section-lead {
  font-size: clamp(1.125rem, 2.5vw, 1.3125rem);
  color: var(--text-primary);
  line-height: 1.65;
  margin-bottom: var(--space-5);
}

.beta-section .section-title {
  text-align: center;
  margin-bottom: var(--space-5);
}

.beta-section .section-label {
  display: block;
  text-align: center;
}

.beta-list {
  list-style: none;
  display: grid;
  gap: var(--space-3);
  margin-top: var(--beta-gap-md);
}

@media (min-width: 640px) {
  .beta-list--2col {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4) var(--space-8);
  }
}

.beta-list li {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
  padding-left: 1.25em;
  position: relative;
}

.beta-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.beta-cards-grid {
  display: grid;
  gap: var(--space-5);
  margin-top: var(--beta-gap-md);
}

@media (min-width: 640px) {
  .beta-cards-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
}

.beta-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: var(--space-6) var(--space-7);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  border-top: 2px solid color-mix(in srgb, var(--accent) 25%, transparent);
  transition: var(--card-transition);
}

.beta-card:hover {
  transform: translateY(var(--card-lift));
  box-shadow: var(--card-shadow-hover);
}

.beta-card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  letter-spacing: -0.01em;
}

.beta-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

.beta-note {
  margin-top: var(--beta-gap);
  padding: var(--space-5) var(--space-6);
  background: color-mix(in srgb, var(--accent) 5%, var(--bg-elevated));
  border: 1px solid color-mix(in srgb, var(--accent) 12%, var(--border));
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.beta-note a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.beta-note a:hover {
  text-decoration: underline;
}

.beta-request {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto;
}

.beta-request-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
  margin-top: var(--beta-gap-md);
}

.beta-request-hint {
  margin-top: var(--space-5);
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.beta-close {
  background: var(--bg-midnight);
  color: var(--text-on-dark);
  text-align: center;
  padding: var(--beta-y) 0 var(--beta-y-lg);
}

.beta-close .section-lead {
  color: color-mix(in srgb, var(--text-on-dark) 82%, transparent);
  max-width: 34rem;
  margin: 0 auto;
  line-height: 1.75;
}

.beta-close .section-label {
  color: var(--cyan);
}

.beta-reveal {
  animation: fade-up 0.7s ease both;
}

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

.beta-inline-link:hover {
  text-decoration: underline;
}

.beta-evolving-list li::before {
  background: var(--text-muted);
}