:root {
  color-scheme: light;
  --ink: #1a1a1a;
  --ink-soft: #4a4a4a;
  --bg: #ffffff;
  --bg-soft: #f4f7f9;
  --accent: #1c5d8c;
  --border: #dde3e7;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}

a { color: var(--accent); }
a:hover { text-decoration: none; }

header.site {
  border-bottom: 1px solid var(--border);
}

header.site nav {
  max-width: 760px;
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  align-items: baseline;
}

header.site .site-name {
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  font-size: 1.05rem;
  margin-right: auto;
}

header.site .nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
}

header.site .nav-links a:hover {
  color: var(--accent);
}

.call-banner {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--accent);
  color: #fff;
}

.call-banner .inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem 1.25rem;
}

.call-banner .msg {
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.3;
}

.call-banner .msg .sub {
  display: block;
  font-weight: 400;
  font-size: 0.85rem;
  opacity: 0.9;
  margin-top: 0.1rem;
}

.call-banner a.call-btn {
  background: #fff;
  color: var(--accent);
  font-weight: 700;
  padding: 0.6rem 1.1rem;
  border-radius: 6px;
  text-decoration: none;
  font-size: 1.15rem;
  white-space: nowrap;
  flex-shrink: 0;
}

.call-banner a.call-btn:hover {
  opacity: 0.9;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

h1 { font-size: 1.85rem; line-height: 1.25; margin-bottom: 0.5rem; }
h2 { font-size: 1.35rem; margin-top: 2.25rem; }
h3 { font-size: 1.1rem; margin-top: 1.5rem; }

.deck {
  font-size: 1.1rem;
  color: var(--ink-soft);
  margin-top: 0;
}

p, li { color: var(--ink); }

ul, ol {
  padding-left: 1.4rem;
}

li + li { margin-top: 0.4rem; }

.callout {
  background: var(--bg-soft);
  border-left: 4px solid var(--accent);
  padding: 1rem 1.25rem;
  border-radius: 0 4px 4px 0;
  margin: 1.5rem 0;
}

.callout p:first-child { margin-top: 0; }
.callout p:last-child { margin-bottom: 0; }

.guide-index {
  list-style: none;
  padding-left: 0;
  margin: 1.5rem 0;
}

.guide-index li {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.1rem;
  margin-bottom: 0.75rem;
}

.guide-index a {
  font-weight: 600;
  text-decoration: none;
  font-size: 1.05rem;
}

.guide-index a:hover { text-decoration: underline; }

.guide-index p {
  margin: 0.35rem 0 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.related {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.related h2 { margin-top: 0; }

footer.site {
  border-top: 1px solid var(--border);
  margin-top: 2rem;
}

footer.site .foot-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2.5rem;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

footer.site p { margin: 0.5rem 0; }

.contact-form {
  margin-top: 1.5rem;
}

.contact-form label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
}

.contact-form .field {
  margin-bottom: 1.1rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
  color: var(--ink);
  background: #fff;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.contact-form textarea {
  resize: vertical;
  min-height: 6rem;
}

.contact-form .hint {
  font-weight: 400;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.contact-form button {
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 700;
  border: none;
  border-radius: 6px;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  cursor: pointer;
}

.contact-form button:hover {
  opacity: 0.9;
}

.contact-form button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-status {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 6px;
  font-size: 0.95rem;
  display: none;
}

.form-status.success {
  display: block;
  background: #eaf6ec;
  border: 1px solid #a9d8b1;
  color: #1e5b28;
}

.form-status.error {
  display: block;
  background: #fbeaea;
  border: 1px solid #e3a9a9;
  color: #7a1f1f;
}

.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}