/* ===== Base ===== */
:root {
  --ink: #0f172a;
  --muted: #475569;
  --bg: #f8fafc;
  --accent: #2563eb;
  --brand: #ff5722;
}
* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica,
    Arial;
  line-height: 1.7;
}

/* Container */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 20px;
}

/* ===== Header (compact) ===== */
.site-header {
  background: #fff;
  border-bottom: 1px solid #e5e7eb;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  height: 46px;
  width: auto;
  border-radius: 8px;
}
.nav-links {
  display: flex;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: #111827;
  text-decoration: none;
}
.nav-links a:hover {
  color: var(--accent);
  text-decoration: underline;
}

/* ===== Page heading ===== */
h1 {
  font-size: 28px;
  line-height: 1.3;
  margin: 16px 0 10px;
  font-weight: 800;
}
h2 {
  font-size: 18px;
  margin: 28px 0 12px;
  font-weight: 700;
}
p,
li {
  font-size: 16px;
  color: var(--muted);
  margin: 0 0 12px;
}

/* ===== FAQ blocks ===== */
.faq-group {
  margin-top: 14px;
}
.faq-item {
  border: 1px solid #e5e7eb;
  background: #fff;
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 14px 16px;
  font-weight: 600;
  color: #111827;
}
.faq-item[open] summary {
  border-bottom: 1px solid #e5e7eb;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.answer {
  padding: 14px 16px;
  color: var(--muted);
}

/* ===== Footer (4 columns, no Affiliations) ===== */
.site-footer {
  background: #f8f9fa;
  padding: 40px 0 50px;
  margin-top: 26px;
}
.site-footer .footer {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 60px;
  align-items: flex-start;
}
.site-footer .foot-col h3 {
  font-size: 16px;
  margin-bottom: 12px;
  font-weight: 700;
}
.site-footer .foot-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-footer .foot-col ul li {
  margin-bottom: 8px;
}
.site-footer .foot-col a {
  text-decoration: none;
  color: #111827;
  transition: color 0.25s;
}
.site-footer .foot-col a:hover {
  color: var(--accent);
}
.social-icon {
  width: 24px;
  height: 24px;
  margin-left: 6px;
  vertical-align: middle;
  transition: transform 0.2s;
}
.social-icon:hover {
  transform: scale(1.1);
}
.site-footer form {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.site-footer input[type="email"] {
  flex: 1;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
}
.site-footer button {
  background: var(--brand);
  color: #fff;
  border: 0;
  padding: 8px 16px;
  border-radius: 4px;
  cursor: pointer;
}
.site-footer button:hover {
  background: #e64a19;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .site-footer .footer {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
}
@media (max-width: 640px) {
  .nav {
    flex-direction: column;
    gap: 10px;
  }
  .site-footer .footer {
    grid-template-columns: 1fr;
  }
}