/* Dynamic Incident Response - Site Styles */
/* Color palette from the book */
:root {
  --navy: #1B365D;
  --blue: #09456D;
  --cyan: #0076BE;
  --light-bg: #F7F9FB;
  --text: #2C2C2C;
  --text-light: #5A6A7A;
  --white: #FFFFFF;
  --teal: #3A8C8C;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Lora', Georgia, serif;
  color: var(--text);
  line-height: 1.7;
  background: var(--white);
}

/* Typography */
h1, h2, h3, h4 {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--navy);
  line-height: 1.2;
}

h1 { font-size: 2.5rem; font-weight: 700; }
h2 { font-size: 1.75rem; font-weight: 600; margin-bottom: 1rem; }
h3 { font-size: 1.25rem; font-weight: 600; margin-bottom: 0.75rem; }

a {
  color: var(--cyan);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--blue);
  text-decoration: underline;
}

/* Layout */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header / Nav */
.site-header {
  background: var(--navy);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-title {
  color: var(--white);
  font-family: 'Inter', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
}

.site-title:hover {
  color: var(--white);
  text-decoration: none;
  opacity: 0.9;
}

.site-nav a {
  color: rgba(255, 255, 255, 0.85);
  margin-left: 1.5rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
}

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

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%);
  color: var(--white);
  padding: 4rem 0;
}

.hero-content {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-cover {
  width: 100%;
  max-width: 280px;
  border-radius: 4px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.hero-text h1 {
  color: var(--white);
  margin-bottom: 0.5rem;
}

.hero-subtitle {
  font-family: 'Inter', sans-serif;
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 1.5rem;
  font-weight: 400;
}

.hero-description {
  font-size: 1.05rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
}

/* Buttons */
.btn-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}

.btn-primary {
  background: var(--cyan);
  color: var(--white);
}

.btn-primary:hover {
  background: #0068A8;
  color: var(--white);
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
  border-color: var(--white);
  color: var(--white);
  text-decoration: none;
}

/* Sections */
.section {
  padding: 3.5rem 0;
}

.section-alt {
  background: var(--light-bg);
}

.section h2 {
  text-align: center;
  margin-bottom: 2rem;
}

/* Resource cards */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.resource-card {
  background: var(--white);
  border: 1px solid #E2E8F0;
  border-radius: 6px;
  padding: 1.5rem;
  transition: box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}

.resource-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.resource-card h3 {
  color: var(--blue);
}

.resource-card p {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 1rem;
  flex: 1;
}

.resource-card .resource-links {
  margin-top: auto;
  text-align: center;
}

.resource-card .resource-links a {
  display: inline-block;
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0 0.25rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--cyan);
  border-radius: 4px;
  color: var(--cyan);
  text-decoration: none;
  text-align: center;
  transition: all 0.2s;
}

.resource-card .resource-links a:hover {
  background: var(--cyan);
  color: var(--white);
  text-decoration: none;
}

.resource-card .btn {
  font-size: 0.85rem;
  padding: 0.5rem 1rem;
  align-self: center;
  text-align: center;
  margin-top: auto;
  width: 10rem;
}

/* About section */
.about-content {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 2rem;
  text-align: left;
}

.author-headshot {
  width: 150px;
  height: 150px;
  border-radius: 6px;
  object-fit: cover;
  flex-shrink: 0;
}

.about-content p {
  font-size: 1.05rem;
  color: var(--text-light);
  margin-bottom: 1rem;
}

/* Footer */
.site-footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.7);
  padding: 2rem 0;
  text-align: center;
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.85);
  margin: 0 0.75rem;
}

.site-footer a:hover {
  color: var(--white);
}

.footer-links {
  margin-bottom: 0.75rem;
}

/* Subpage styles */
.page-header {
  background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%);
  color: var(--white);
  padding: 2.5rem 0;
}

.page-header h1 {
  color: var(--white);
  font-size: 2rem;
}

.page-content {
  padding: 3rem 0;
}

.page-content h2 {
  text-align: left;
}

.page-content p {
  margin-bottom: 1rem;
  max-width: 720px;
}

.errata-empty {
  text-align: center;
  padding: 3rem 0;
  color: var(--text-light);
  font-style: italic;
}

/* Resource list on resources page */
.resource-list {
  list-style: none;
  padding: 0;
}

.resource-list li {
  padding: 1rem 0;
  border-bottom: 1px solid #E2E8F0;
}

.resource-list li:last-child {
  border-bottom: none;
}

.resource-list .resource-title {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  color: var(--blue);
  display: block;
  margin-bottom: 0.25rem;
}

.resource-list .resource-desc {
  font-size: 0.95rem;
  color: var(--text-light);
}

.resource-list .resource-links {
  margin-top: 0.5rem;
}

.resource-list .resource-links a {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  margin-right: 1rem;
}

/* Responsive */
@media (max-width: 700px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.4rem; }

  .hero { padding: 2.5rem 0; }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-cover {
    max-width: 200px;
    margin: 0 auto;
  }

  .btn-group {
    justify-content: center;
  }

  .site-header .container {
    flex-direction: column;
    gap: 0.75rem;
  }

  .site-nav a {
    margin-left: 0;
    margin-right: 1rem;
  }
}