/* Base */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 16px;
  line-height: 1.6;
  color: #333;
  background: #fafaf8;
  margin: 0;
  padding: 0;
}

a {
  color: #5a3e2b;
  text-decoration: underline;
}

a:hover {
  color: #8b5e3c;
}

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

/* Header */
.site-header {
  background: #5a3e2b;
  color: #fff;
  padding: 1rem 0;
  border-bottom: 3px solid #8b5e3c;
}

.site-header .wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.site-title {
  font-size: 1.4rem;
  font-weight: bold;
  color: #fff;
  text-decoration: none;
}

.site-title:hover {
  color: #f0e0c8;
}

.site-nav a {
  color: #f0e0c8;
  text-decoration: none;
  font-size: 0.95rem;
}

.site-nav a:hover {
  color: #fff;
  text-decoration: underline;
}

/* Main content */
.page-content {
  padding: 2rem 0;
  min-height: calc(100vh - 10rem);
}

/* Footer */
.site-footer {
  background: #3c2a1e;
  color: #c8b8a8;
  padding: 1rem 0;
  font-size: 0.85rem;
  text-align: center;
}

.site-footer a {
  color: #f0e0c8;
}

/* Index page */
.protocol-count {
  color: #666;
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.protocol-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.protocol-list-item {
  border-bottom: 1px solid #e0d8d0;
  padding: 0.75rem 0;
}

.protocol-list-item:first-child {
  border-top: 1px solid #e0d8d0;
}

.protocol-list-item a {
  font-size: 1.05rem;
  font-weight: bold;
  color: #5a3e2b;
  text-decoration: none;
}

.protocol-list-item a:hover {
  text-decoration: underline;
}

.protocol-list-meta {
  font-size: 0.85rem;
  color: #666;
  margin-top: 0.2rem;
}

/* Protocol page */
.protocol-header h1 {
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
  color: #3c2a1e;
}

.protocol-meta {
  font-size: 0.9rem;
  color: #555;
  margin: 0.25rem 0;
}

.protocol-description {
  margin: 1.5rem 0;
  line-height: 1.7;
}

.protocol-thumbnail {
  margin: 1.5rem 0;
}

.protocol-thumbnail img {
  max-width: 100%;
  height: auto;
  border: 1px solid #ddd;
  border-radius: 4px;
}

.protocol-footer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid #e0d8d0;
  font-size: 0.9rem;
}

/* Search/filter */
.filter-bar {
  margin-bottom: 1.5rem;
}

.filter-bar input {
  width: 100%;
  max-width: 400px;
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}

/* Responsive */
@media (max-width: 600px) {
  .site-header .wrapper {
    flex-direction: column;
    align-items: flex-start;
  }

  .protocol-header h1 {
    font-size: 1.3rem;
  }
}

/* Protocol XML content */
.protocol-xml {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  border-left: 3px solid #8b5e3c;
  background: #fdf8f4;
}

.xml-loading,
.xml-error {
  font-style: italic;
  color: #777;
}

.xml-error {
  color: #a03030;
}

.xml-header,
.xml-publication,
.xml-source {
  font-size: 0.85rem;
  color: #666;
  margin-bottom: 0.75rem;
}

.xml-body {
  line-height: 1.75;
}

.xml-p {
  margin: 0.6rem 0;
}

.xml-head {
  font-size: 1.1rem;
  margin: 1.2rem 0 0.4rem;
  color: #3c2a1e;
}

.xml-div {
  margin: 0.75rem 0;
}

.xml-page-break {
  border: none;
  border-top: 1px dashed #bbb;
  margin: 1rem 0;
}

.xml-node {
  display: inline;
}