/* Release Notes Modal (Header-Only Compliance 2025)
   Pattern: Header = title + buttons only; Toolbar = version tabs; Main = markdown content
   Responsive: Horizontal tabs on desktop, wrap on mobile
*/

/* Override global modal styles for Release Notes */
#release-notes-modal .modal-content {
  background-color: var(--bg-surface) !important;
  border: 1px solid var(--primary) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-glow) !important;
  max-height: calc(100vh - 24vh); /* Prevent overflow */
  display: flex;
  flex-direction: column;
  overflow: hidden; /* Prevent content overflow */
}

@media (max-width: 760px) {
  #release-notes-modal .modal-content {
    max-height: calc(100vh - 16vh);
  }
}

@media (max-width: 560px) {
  #release-notes-modal .modal-content {
    max-height: calc(100vh - 14vh);
  }
}

/* Modal body layout */
#release-notes-modal .modal-body {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0;
  min-height: 0; /* Allow shrinking */
  overflow: hidden;
  flex: 1 1 auto; /* Fill available space */
}

/* Toolbar: Horizontal version tabs positioned below header */
.rn-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  background: rgba(0,0,0,0.15);
  overflow-x: auto;
  overflow-y: hidden;
  flex-shrink: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--primary) rgba(0,0,0,0.3);
}

.rn-toolbar::-webkit-scrollbar {
  height: 6px;
}

.rn-toolbar::-webkit-scrollbar-track {
  background: rgba(0,0,0,0.3);
  border-radius: 3px;
}

.rn-toolbar::-webkit-scrollbar-thumb {
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 3px;
}

/* Horizontal tab list */
.rn-tablist {
  display: flex;
  gap: 8px;
  flex-wrap: nowrap;
  align-items: center;
  min-width: min-content;
}

/* Individual tab button */
.rn-tab {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 8px 14px;
  background: rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  cursor: pointer;
  font-family: inherit;
  flex-shrink: 0;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
  white-space: nowrap;
}

.rn-tab:hover {
  background: var(--primary-dim);
  border-color: var(--border-medium);
}

.rn-tab[aria-selected="true"] {
  background: rgba(255,224,48,0.16);
  border-color: var(--primary);
  box-shadow: 0 0 0 1px rgba(255,224,48,0.25) inset;
}

.rn-tab:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(255,224,48,0.45);
}

.rn-tab .title {
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
  color: #dcdcdc;
}

.rn-tab[aria-selected="true"] .title {
  color: var(--primary);
}

.rn-tab .date {
  font-size: 0.6rem;
  opacity: 0.7;
  letter-spacing: 0.4px;
}

/* Main content area */
.rn-main {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px 20px 20px;
  scrollbar-width: thin;
  scrollbar-color: var(--primary) rgba(0,0,0,0.3);
}

.rn-main::-webkit-scrollbar {
  width: 10px;
}

.rn-main::-webkit-scrollbar-track {
  background: rgba(0,0,0,0.3);
  border-radius: 5px;
}

.rn-main::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--secondary));
  border-radius: 5px;
}

/* Markdown content styling */
.rn-markdown {
  max-width: 820px;
  line-height: 1.6;
}

.rn-markdown h1 {
  color: var(--primary);
  font-size: 1.8rem;
  margin: 16px 0 12px;
  letter-spacing: 0.5px;
  text-shadow: 0 0 8px rgba(255,224,48,0.3);
}

.rn-markdown h2 {
  color: var(--secondary);
  font-size: 1.4rem;
  margin: 14px 0 10px;
  letter-spacing: 0.4px;
}

.rn-markdown h3 {
  color: var(--cyan);
  font-size: 1.2rem;
  margin: 12px 0 8px;
  letter-spacing: 0.3px;
}

.rn-markdown h4, .rn-markdown h5, .rn-markdown h6 {
  color: #cfe;
  margin: 10px 0 6px;
}

.rn-markdown p {
  margin: 8px 0;
  color: #d6d6d6;
}

.rn-markdown a {
  color: var(--primary);
  text-decoration: underline;
  transition: color 0.2s;
}

.rn-markdown a:hover {
  color: var(--secondary);
}

.rn-markdown code {
  background: rgba(255,255,255,0.08);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--cyan);
  font-family: var(--font-mono), monospace;
}

.rn-markdown pre {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border-medium);
  padding: 12px 14px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 10px 0;
}

.rn-markdown pre code {
  background: transparent;
  padding: 0;
  color: #d6d6d6;
}

.rn-markdown blockquote {
  border-left: 3px solid var(--primary);
  padding-left: 12px;
  margin: 10px 0;
  color: #cfe;
  opacity: 0.9;
  font-style: italic;
}

.rn-markdown ul, .rn-markdown ol {
  padding-left: 24px;
  margin: 8px 0;
}

.rn-markdown li {
  margin: 4px 0;
  color: #d6d6d6;
}

.rn-markdown hr {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.15);
  margin: 16px 0;
}

.rn-markdown table {
  border-collapse: collapse;
  width: 100%;
  margin: 12px 0;
}

.rn-markdown th, .rn-markdown td {
  border: 1px solid rgba(255,255,255,0.12);
  padding: 8px 12px;
  text-align: left;
}

.rn-markdown th {
  background: var(--primary-dim);
  color: var(--primary);
  font-weight: 600;
}

/* Empty state */
.rn-empty {
  color: #aaa;
  padding: 40px 20px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.7;
}

/* Mobile responsive (portrait) */
@media (max-width: 560px) {
  .rn-toolbar {
    padding: 10px 12px;
    gap: 6px;
  }

  .rn-tab {
    padding: 7px 12px;
  }

  .rn-tab .title {
    font-size: 0.7rem;
  }

  .rn-tab .date {
    font-size: 0.55rem;
  }

  .rn-main {
    padding: 14px 14px 20px;
  }

  .rn-markdown h1 {
    font-size: 1.5rem;
  }

  .rn-markdown h2 {
    font-size: 1.2rem;
  }

  .rn-markdown h3 {
    font-size: 1rem;
  }
}

/* Tablet optimization */
@media (max-width: 760px) and (min-width: 561px) {
  .rn-toolbar {
    padding: 11px 14px;
  }

  .rn-main {
    padding: 15px 16px 20px;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .rn-tab {
    transition: none;
  }
}