/* Engler Education Risk — Site Styles */
/* Institutional, restrained, authority-forward */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700&display=swap');

:root {
  --navy: #1B2A4A;
  --dark: #333333;
  --medium: #666666;
  --light: #F5F5F5;
  --warm-bg: #F8F6F3;
  --accent: #2C5F8A;
  --white: #FFFFFF;
  --red: #8B1A1A;
  --border: #D4D0CB;
  --green: #2D6A4F;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--dark);
  background: var(--white);
  max-width: 760px;
  margin: 0 auto;
  padding: 0 32px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Site Header */
.site-header {
  padding: 24px 0 20px;
  border-bottom: 2px solid var(--navy);
}

.site-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.site-name a {
  color: var(--navy);
  text-decoration: none;
}

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

/* Navigation / Breadcrumb */
nav[aria-label="Breadcrumb"] {
  padding: 14px 0;
  font-size: 13px;
  color: var(--medium);
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
  letter-spacing: 0.01em;
}

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

nav a:hover {
  text-decoration: underline;
}

/* Hero */
.hero {
  padding: 8px 0 32px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.hero h1 {
  margin-bottom: 16px;
}

.hero-sub {
  font-size: 17px;
  color: var(--medium);
  line-height: 1.6;
  margin-bottom: 16px;
  font-weight: 400;
}

/* Typography */
h1 {
  font-size: 30px;
  font-weight: 700;
  color: var(--navy);
  margin: 0 0 20px 0;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 21px;
  font-weight: 700;
  color: var(--navy);
  margin: 48px 0 14px 0;
  line-height: 1.3;
  letter-spacing: -0.005em;
}

h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--dark);
  margin: 28px 0 8px 0;
  line-height: 1.35;
}

p {
  margin: 0 0 14px 0;
}

/* Lists */
ul, ol {
  margin: 0 0 18px 0;
  padding-left: 24px;
}

li {
  margin-bottom: 8px;
  line-height: 1.6;
}

/* Links */
a {
  color: var(--accent);
}

a:hover {
  text-decoration: underline;
}

/* CTA Buttons */
.cta-button {
  display: inline-block;
  background: var(--navy);
  color: var(--white);
  padding: 13px 28px;
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  border-radius: 2px;
  margin: 8px 10px 8px 0;
  transition: background 0.2s;
  letter-spacing: 0.01em;
  box-shadow: 0 1px 2px rgba(0,0,0,0.12);
}

.cta-button:hover {
  background: var(--accent);
  text-decoration: none;
  color: var(--white);
}

.cta-secondary {
  background: var(--white);
  color: var(--navy);
  border: 1.5px solid var(--navy);
  box-shadow: none;
}

.cta-secondary:hover {
  background: var(--light);
  color: var(--navy);
}

.cta-group {
  margin: 28px 0 32px;
}

/* Page Note (internal link aids) */
.page-note {
  font-size: 14px;
  color: var(--medium);
  margin: 20px 0 8px;
  padding: 12px 16px;
  background: var(--warm-bg);
  border-left: 3px solid var(--border);
}

.page-note a {
  color: var(--accent);
}

/* FAQ / Details */
details {
  margin: 8px 0;
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 0;
}

details summary {
  padding: 13px 18px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  color: var(--navy);
  background: var(--light);
  line-height: 1.4;
}

details summary:hover {
  background: #EBEBEB;
}

details[open] summary {
  border-bottom: 1px solid var(--border);
}

details p {
  padding: 14px 18px;
  margin: 0;
  font-size: 15px;
  color: var(--dark);
  line-height: 1.65;
}

/* Sections (protocol cards) */
section {
  margin: 16px 0 28px 0;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

section:last-of-type {
  border-bottom: none;
}

/* Footer */
footer {
  margin-top: 56px;
  padding: 28px 0;
  border-top: 2px solid var(--navy);
  font-size: 13px;
  color: var(--medium);
  text-align: center;
  line-height: 1.7;
}

footer p {
  margin: 0 0 6px 0;
}

footer a {
  color: var(--medium);
}

/* Credibility Line */
.credibility-line {
  font-size: 13px;
  color: var(--medium);
  font-style: italic;
  margin-bottom: 12px;
}

/* Main */
main {
  padding-bottom: 24px;
}

/* Responsive */
@media (max-width: 640px) {
  body {
    padding: 0 20px;
  }

  h1 {
    font-size: 25px;
  }

  h2 {
    font-size: 19px;
    margin-top: 36px;
  }

  .cta-button {
    display: block;
    text-align: center;
    margin-right: 0;
  }
}