/*
 * ASPN Premium 34 — OJS 3.4.x custom theme layer
 * Folder name: aspnPremium34
 * This CSS intentionally enhances Default Theme instead of replacing templates.
 */

:root {
  --aspn-bg: #f5f7fb;
  --aspn-surface: #ffffff;
  --aspn-ink: #102033;
  --aspn-muted: #64748b;
  --aspn-line: rgba(15, 23, 42, .10);
  --aspn-brand: #123c69;
  --aspn-brand-2: #0c7c7c;
  --aspn-gold: #d5a342;
  --aspn-radius: 22px;
  --aspn-shadow: 0 18px 55px rgba(15, 23, 42, .12);
  --aspn-soft-shadow: 0 10px 30px rgba(15, 23, 42, .08);
  --aspn-max: 1240px;
}

html { scroll-behavior: smooth; }
body {
  color: var(--aspn-ink);
  background:
    radial-gradient(circle at 10% 0%, rgba(12, 124, 124, .14), transparent 34%),
    radial-gradient(circle at 90% 10%, rgba(213, 163, 66, .14), transparent 30%),
    linear-gradient(180deg, #eef4fb 0%, var(--aspn-bg) 42%, #fff 100%);
  text-rendering: optimizeLegibility;
}

a { color: var(--aspn-brand); text-decoration-thickness: .08em; text-underline-offset: .18em; }
a:hover, a:focus { color: var(--aspn-brand-2); }

/* Main width stabilizer */
.pkp_structure_page,
.pkp_structure_content,
.pkp_structure_main,
.pkp_structure_footer_wrapper,
.pkp_site_nav_menu,
.pkp_navigation_primary_wrapper,
.pkp_head_wrapper {
  box-sizing: border-box;
}

.pkp_structure_page {
  max-width: var(--aspn-max);
  margin: 18px auto;
  background: rgba(255, 255, 255, .78);
  border: 1px solid rgba(255, 255, 255, .72);
  border-radius: 30px;
  box-shadow: var(--aspn-shadow);
  overflow: hidden;
  backdrop-filter: blur(14px);
}

/* Header and logo */
.pkp_head_wrapper,
.pkp_structure_head {
  background:
    linear-gradient(135deg, rgba(18, 60, 105, .96), rgba(12, 124, 124, .92)),
    linear-gradient(90deg, rgba(213, 163, 66, .32), transparent);
  position: relative;
}
.pkp_head_wrapper::after,
.pkp_structure_head::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 4px;
  background: linear-gradient(90deg, var(--aspn-gold), #ffffff, var(--aspn-brand-2));
  opacity: .75;
}

.pkp_site_name,
.pkp_site_name_wrapper { padding: 22px 24px 18px; }
.pkp_site_name a { color: #fff !important; font-weight: 800; letter-spacing: .01em; }
.pkp_site_name img,
.pkp_site_name .is_img img,
.pkp_site_name a img {
  display: block !important;
  width: auto !important;
  max-width: min(100%, 980px) !important;
  height: auto !important;
  max-height: 180px !important;
  object-fit: contain !important;
  object-position: center center !important;
  margin: 0 auto !important;
  filter: drop-shadow(0 16px 30px rgba(0,0,0,.25));
}

/* Navigation */
.pkp_navigation_primary_wrapper,
.pkp_site_nav_menu {
  background: rgba(255,255,255,.94) !important;
  border-top: 1px solid rgba(255,255,255,.35);
  border-bottom: 1px solid var(--aspn-line);
}
.pkp_navigation_primary,
.pkp_navigation_user {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.pkp_navigation_primary > li > a,
.pkp_navigation_user > li > a,
.pkp_navigation_primary .dropdown-menu a {
  border-radius: 999px;
  padding: 10px 15px !important;
  color: var(--aspn-ink) !important;
  font-weight: 700;
  line-height: 1.2;
  transition: transform .18s ease, background .18s ease, color .18s ease, box-shadow .18s ease;
}
.pkp_navigation_primary > li > a:hover,
.pkp_navigation_primary > li > a:focus,
.pkp_navigation_user > li > a:hover,
.pkp_navigation_user > li > a:focus {
  background: linear-gradient(135deg, var(--aspn-brand), var(--aspn-brand-2));
  color: #fff !important;
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(18, 60, 105, .20);
}

/* Content layout */
.pkp_structure_content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: 28px;
  padding: 28px;
  max-width: none;
}
.pkp_structure_main {
  min-width: 0;
  background: var(--aspn-surface);
  border: 1px solid var(--aspn-line);
  border-radius: var(--aspn-radius);
  padding: 26px;
  box-shadow: var(--aspn-soft-shadow);
}
.pkp_structure_sidebar {
  min-width: 0;
}
.pkp_block,
.block_make_submission,
.pkp_structure_sidebar .block {
  background: var(--aspn-surface);
  border: 1px solid var(--aspn-line);
  border-radius: var(--aspn-radius);
  box-shadow: var(--aspn-soft-shadow);
  padding: 18px;
  margin-bottom: 18px;
  overflow: hidden;
}
.pkp_block .title,
.pkp_structure_sidebar h2,
.pkp_structure_sidebar h3 {
  color: var(--aspn-brand);
  font-weight: 800;
}

/* Homepage / issue / article cards */
.obj_issue_toc .section,
.obj_article_summary,
.cmp_article_list > li,
.page_index_journal .current_issue,
.page_issue .obj_issue_toc {
  border: 1px solid var(--aspn-line) !important;
  border-radius: var(--aspn-radius);
  background: linear-gradient(180deg, #fff, #fbfdff);
  box-shadow: 0 10px 30px rgba(15, 23, 42, .06);
  padding: 18px !important;
  margin-bottom: 16px !important;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.obj_article_summary:hover,
.cmp_article_list > li:hover,
.page_index_journal .current_issue:hover {
  transform: translateY(-3px);
  border-color: rgba(12, 124, 124, .35) !important;
  box-shadow: 0 18px 46px rgba(15, 23, 42, .10);
}
.obj_article_summary .title a,
.obj_issue_toc .title a,
.cmp_article_list .title a {
  color: var(--aspn-ink) !important;
  font-weight: 800;
}
.obj_article_summary .authors,
.obj_article_summary .pages,
.obj_article_summary .published,
.obj_issue_toc .published {
  color: var(--aspn-muted);
}

/* Buttons and galley links */
.cmp_button,
.cmp_form .buttons button,
.obj_galley_link,
.block_make_submission a,
.pkp_page_index .cmp_button {
  border: 0 !important;
  border-radius: 999px !important;
  background: linear-gradient(135deg, var(--aspn-brand), var(--aspn-brand-2)) !important;
  color: #fff !important;
  font-weight: 800 !important;
  padding: 10px 17px !important;
  box-shadow: 0 12px 28px rgba(18, 60, 105, .22);
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
}
.cmp_button:hover,
.cmp_form .buttons button:hover,
.obj_galley_link:hover,
.block_make_submission a:hover {
  transform: translateY(-1px);
  filter: saturate(1.08);
  box-shadow: 0 16px 36px rgba(18, 60, 105, .28);
}

/* Cover images */
.obj_issue_summary .cover img,
.obj_issue_toc .cover img,
.current_issue .cover img,
.pkp_page_index .homepage_image img,
.page_issue .cover img {
  max-width: 100% !important;
  height: auto !important;
  border-radius: 18px;
  box-shadow: 0 16px 38px rgba(15, 23, 42, .14);
}

/* Tables and forms */
table { border-collapse: separate; border-spacing: 0; width: 100%; }
th, td { border-bottom: 1px solid var(--aspn-line); padding: 10px; }
input, select, textarea {
  border-radius: 14px !important;
  border: 1px solid rgba(15,23,42,.16) !important;
}

/* Footer */
.pkp_structure_footer_wrapper,
.pkp_structure_footer {
  background: #0d2237 !important;
  color: rgba(255,255,255,.82);
}
.pkp_structure_footer a { color: #fff; }

/* Scroll reveal helper */
.aspn-reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .65s ease, transform .65s ease;
}
.aspn-reveal.aspn-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive fixes */
@media (max-width: 991px) {
  .pkp_structure_page { margin: 0; border-radius: 0; }
  .pkp_structure_content {
    display: block;
    padding: 18px;
  }
  .pkp_structure_main { padding: 20px; margin-bottom: 18px; }
  .pkp_structure_sidebar { width: 100% !important; }
  .pkp_navigation_primary,
  .pkp_navigation_user { gap: 6px; }
  .pkp_navigation_primary > li > a,
  .pkp_navigation_user > li > a { padding: 9px 12px !important; }
  .pkp_site_name img,
  .pkp_site_name .is_img img,
  .pkp_site_name a img { max-height: 135px !important; }
}

@media (max-width: 640px) {
  body { background: #f6f8fb; }
  .pkp_site_name,
  .pkp_site_name_wrapper { padding: 14px 12px; }
  .pkp_structure_content { padding: 12px; }
  .pkp_structure_main,
  .pkp_block,
  .block_make_submission { border-radius: 18px; padding: 16px; }
  .pkp_navigation_primary,
  .pkp_navigation_user {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
  }
  .pkp_navigation_primary > li,
  .pkp_navigation_user > li { width: 100%; }
  .pkp_navigation_primary > li > a,
  .pkp_navigation_user > li > a {
    display: block;
    width: 100%;
    text-align: center;
  }
  .obj_article_summary,
  .cmp_article_list > li,
  .page_index_journal .current_issue { padding: 14px !important; }
}