:root {
  --bg: #f5f5f4;
  --fg: #1c1917;
  --muted: #78716c;
  --soft: #57534e;
  --border: #e7e5e4;
  --accent: #1c1917;
  --accent-fg: #ffffff;
  --error: #b91c1c;
  --ok: #166534;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.55;
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 20px;
}
.container.narrow { max-width: 540px; }

h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); line-height: 1.2; margin: 0 0 16px; }
h2 { margin-top: 0; }

.lede {
  font-size: 1.1rem;
  color: var(--soft);
  margin: 0 0 24px;
}

.hero { margin-bottom: 24px; }

.block {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px 28px;
  margin: 24px 0;
}
.block ul, .block ol { padding-left: 22px; margin: 8px 0 0; }
.block li { margin: 6px 0; }

.cta {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-fg);
  border: 0;
  padding: 14px 22px;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.cta:hover { opacity: 0.92; }
.cta:disabled { opacity: 0.5; cursor: progress; }
.cta-block { text-align: center; }

.form fieldset {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 16px 0;
  background: #fff;
}
.form fieldset.inline label {
  display: inline-block;
  margin-right: 14px;
  margin-top: 4px;
  font-size: 0.95rem;
}
.form legend {
  padding: 0 8px;
  font-weight: 600;
}
.form label {
  display: block;
  margin: 10px 0;
  font-size: 0.95rem;
}
.form input[type=text],
.form input[type=email],
.form select,
.form textarea {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
  background: #fff;
  color: var(--fg);
}
.form textarea { resize: vertical; min-height: 80px; }

.status {
  margin-top: 12px;
  color: var(--soft);
  min-height: 1.2em;
}
.status.error { color: var(--error); }
.status.ok { color: var(--ok); }

.foot {
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
  margin-top: 40px;
}