/* ========================================================
   OJS MODERN JOURNAL STYLESHEET
   ======================================================== */

:root {
  --ojs-primary: #1e3a8a;       /* Deep Navy */
  --ojs-primary-hover: #172554;
  --ojs-accent: #2563eb;        /* Royal Blue */
  --ojs-text-main: #1f2937;     /* Slate 800 */
  --ojs-text-muted: #64748b;    /* Slate 500 */
  --ojs-bg-light: #f8fafc;      /* Slate 50 */
  --ojs-border: #e2e8f0;        /* Slate 200 */
  --ojs-radius: 8px;
  --ojs-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
}

/* 1. Global Typography & Spacing */
body.pkp_page_index,
body.pkp_page_article,
body.pkp_page_issue,
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ojs-text-main);
  background-color: var(--ojs-bg-light);
  line-height: 1.6;
}

a {
  color: var(--ojs-accent);
  transition: color 0.2s ease;
}

a:hover, a:focus {
  color: var(--ojs-primary-hover);
}

/* 2. Header & Navigation */
.pkp_structure_head {
  background: #ffffff;
  border-bottom: 1px solid var(--ojs-border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.pkp_site_name .is_text {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ojs-primary);
}

.pkp_navigation_primary > li > a {
  font-weight: 500;
  color: #334155;
  padding: 12px 16px;
  border-radius: var(--ojs-radius);
}

.pkp_navigation_primary > li > a:hover {
  background: #f1f5f9;
  color: var(--ojs-primary);
}

/* 3. Main Content Container */
.pkp_structure_page {
  max-width: 1200px;
  margin: 24px auto;
  padding: 0 20px;
}

.pkp_structure_main {
  background: #ffffff;
  padding: 32px;
  border-radius: var(--ojs-radius);
  border: 1px solid var(--ojs-border);
  box-shadow: var(--ojs-shadow);
}

/* 4. Article Listing / Table of Contents */
.obj_article_summary {
  padding: 20px;
  margin-bottom: 20px;
  background: #ffffff;
  border: 1px solid var(--ojs-border);
  border-left: 4px solid var(--ojs-primary);
  border-radius: var(--ojs-radius);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.obj_article_summary:hover {
  transform: translateY(-2px);
  box-shadow: var(--ojs-shadow);
}

.obj_article_summary .title {
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px;
}

.obj_article_summary .title a {
  color: var(--ojs-text-main);
  text-decoration: none;
}

.obj_article_summary .title a:hover {
  color: var(--ojs-accent);
}

.obj_article_summary .authors {
  font-size: 0.9rem;
  color: var(--ojs-text-muted);
  margin-bottom: 12px;
}

/* Galley / Download PDF Button */
.obj_galley_link {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #ffffff !important;
  background-color: var(--ojs-primary);
  border-radius: 6px;
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.obj_galley_link:hover {
  background-color: var(--ojs-primary-hover);
  text-decoration: none;
}

/* 5. Article Detail Page */
.obj_article_details .page_title {
  font-size: 1.85rem;
  font-weight: 700;
  line-height: 1.3;
  color: #0f172a;
  margin-bottom: 16px;
}

.obj_article_details .item.doi {
  margin: 16px 0;
  padding: 8px 12px;
  background: #f1f5f9;
  border-radius: 6px;
  display: inline-block;
  font-size: 0.88rem;
}

.obj_article_details .abstract {
  font-size: 1rem;
  line-height: 1.75;
  color: #334155;
  margin-top: 24px;
}

/* 6. Sidebar Styling */
.pkp_structure_sidebar {
  padding-left: 20px;
}

.pkp_block {
  background: #ffffff;
  border: 1px solid var(--ojs-border);
  border-radius: var(--ojs-radius);
  padding: 20px;
  margin-bottom: 24px;
  box-shadow: var(--ojs-shadow);
}

.pkp_block .title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ojs-primary);
  border-bottom: 2px solid var(--ojs-border);
  padding-bottom: 8px;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* 7. Footer */
.pkp_structure_footer {
  background: #ffffff;
  border-top: 1px solid var(--ojs-border);
  padding: 32px 20px;
  color: var(--ojs-text-muted);
  font-size: 0.9rem;
  margin-top: 40px;
}