:root {
  --bg: #0f172a;
  --bg-soft: #18233d;
  --card: rgba(15, 23, 42, 0.75);
  --line: rgba(148, 163, 184, 0.24);
  --text: #e5eefc;
  --muted: #a8b7d4;
  --accent: #f59e0b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", Verdana, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(245, 158, 11, 0.22), transparent 20%),
    radial-gradient(circle at right center, rgba(59, 130, 246, 0.18), transparent 25%),
    linear-gradient(180deg, #09101e 0%, var(--bg) 100%);
}

.shell {
  display: grid;
  grid-template-columns: minmax(280px, 380px) 1fr;
  gap: 24px;
  min-height: 100vh;
  padding: 24px;
}

.intro,
.frame-wrap {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--card);
  backdrop-filter: blur(14px);
}

.intro {
  padding: 24px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
}

.lead,
.feed {
  color: var(--muted);
}

.feed {
  margin-top: 24px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  min-height: 120px;
  background: rgba(15, 23, 42, 0.45);
  white-space: pre-line;
}

.frame-wrap {
  overflow: hidden;
}

iframe {
  width: 100%;
  min-height: calc(100vh - 48px);
  border: 0;
  background: #fff;
}

@media (max-width: 980px) {
  .shell {
    grid-template-columns: 1fr;
  }

  iframe {
    min-height: 70vh;
  }
}