body {
  margin: 0;
  font-family: Arial, sans-serif;
  background:
    radial-gradient(circle at top, rgba(236, 91, 19, 0.14), transparent 32%),
    linear-gradient(180deg, #0a0a0a 0%, #151515 100%);
  color: #f5f5f5;
}

a {
  color: #ff9a63;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 20px 64px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  color: #ffd7c3;
  font-weight: 700;
}

.hero {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.04);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.3);
}

.eyebrow {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(236, 91, 19, 0.16);
  color: #ffb48b;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  margin: 18px 0 10px;
  font-size: 40px;
  line-height: 1.1;
}

.hero p,
.section p,
.section li,
.mail-box,
.code-block {
  font-size: 17px;
  line-height: 1.8;
  color: #dddddd;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 12px;
  background: #ec5b13;
  color: #ffffff;
  font-weight: 700;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #f5f5f5;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.card,
.section,
.mail-box,
.code-block {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
}

.card {
  padding: 20px;
}

.card h2,
.section h2 {
  margin: 0 0 12px;
  font-size: 26px;
}

.card h3,
.section h3 {
  margin: 18px 0 10px;
  font-size: 20px;
}

.section {
  margin-top: 18px;
  padding: 24px;
}

.section ul,
.section ol {
  margin: 0;
  padding-left: 22px;
}

.mail-box {
  margin-top: 18px;
  padding: 22px;
  white-space: pre-line;
}

.code-block {
  margin-top: 16px;
  padding: 18px;
  overflow-x: auto;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 14px;
  line-height: 1.7;
  white-space: pre-wrap;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.pill {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: #e9e9e9;
  font-size: 14px;
  font-weight: 700;
}

.footer-note {
  margin-top: 28px;
  color: #bdbdbd;
  font-size: 14px;
}

@media (max-width: 760px) {
  .shell {
    padding: 18px 14px 48px;
  }

  .hero,
  .section,
  .mail-box {
    padding: 18px;
  }

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

  h1 {
    font-size: 30px;
  }

  .card h2,
  .section h2 {
    font-size: 22px;
  }
}