:root {
  --bg: #dfe4ea;
  --panel: rgba(248, 250, 252, 0.86);
  --panel-strong: rgba(241, 245, 249, 0.94);
  --text: #0f172a;
  --muted: #334155;
  --line: rgba(148, 163, 184, 0.45);
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.12);
  --shadow: 0 20px 45px rgba(15, 23, 42, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.65), transparent 28%),
    linear-gradient(180deg, #e9edf2 0%, var(--bg) 100%);
  color: var(--text);
  line-height: 1.6;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.page-shell {
  width: min(820px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.5rem 0 3.5rem;
}

.stack > * + * {
  margin-top: 1rem;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1.6rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.hero {
  background: linear-gradient(180deg, rgba(248, 250, 252, 0.95), var(--panel-strong));
  border-color: rgba(37, 99, 235, 0.18);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.2rem;
  border-bottom: 1px solid rgba(148, 163, 184, 0.22);
}

.topnav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.topnav a {
  font-weight: 700;
  color: var(--muted);
}

.topnav a:hover {
  color: var(--text);
}

.eyebrow {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2,
h3,
p,
ul {
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.1;
}

h2 {
  font-size: 1.2rem;
  color: var(--accent);
}

h3 {
  font-size: 1rem;
  color: var(--accent);
}

.lede {
  color: var(--muted);
  font-size: 1.05rem;
}

.link-list,
.stack-list {
  padding-left: 1.25rem;
}

.plain-layout-list li + li {
  margin-top: 0.5rem;
}

.link-list a,
a {
  color: var(--accent);
  text-decoration: none;
}

.link-list a:hover,
a:hover {
  text-decoration: underline;
}

.revolution-panel {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.15rem;
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.74), rgba(241, 245, 249, 0.9));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.revolution-copy {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.revolution-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  min-width: 48px;
  border: 0;
  border-radius: 14px;
  padding: 0;
  color: #ffffff;
  background: linear-gradient(135deg, #8b5cf6, #6d28d9);
  cursor: pointer;
  transition: background-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
  box-shadow: 0 14px 30px rgba(124, 58, 237, 0.28);
}

.revolution-toggle:hover {
  transform: translateY(-1px);
}

.revolution-toggle-icon {
  display: block;
  width: 32px;
  height: 32px;
}

.revolution-toggle[data-state="revolution"] .revolution-toggle-icon {
  filter: brightness(0) invert(1);
}

.revolution-toggle[data-state="televised"] {
  background: linear-gradient(135deg, #f472b6, #ec4899);
  box-shadow: 0 14px 30px rgba(236, 72, 153, 0.28);
}

.about-copy h2,
.about-copy h3 {
  margin-top: 0.5rem;
}

@media (max-width: 640px) {
  .topbar,
  .revolution-panel {
    align-items: flex-start;
    flex-direction: column;
  }

  .topnav {
    gap: 0.75rem;
  }
}

.back-link {
  font-weight: 700;
}