/* ============================================================
   Calculation Data (GI Excel Data) — parent & detail page styles
   Depends on the CSS variables from the global ../style.css
   Design style: dark + liquid glass + responsive
   ============================================================ */

/* Footer override */
.site-footer { position: static; margin-top: 3rem; padding: 1.5rem; }

/* ----------------------------------------------------------
   1. Parent page — main container
   ---------------------------------------------------------- */
.data-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: calc(var(--navbar-height) + 1.5rem) 1rem 4rem;
  min-height: 100vh;
  max-width: 100%;
  margin: 0 auto;
}

/* ----------------------------------------------------------
   2. Version navigation
   ---------------------------------------------------------- */
.data-version-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.5rem 0.75rem;
  margin-bottom: 2rem;
  border-radius: var(--radius-md);
}

.data-version-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
  user-select: none;
}

.data-version-btn:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }

.data-version-btn.active {
  color: var(--accent);
  background: rgba(110,168,254,0.12);
  border-color: var(--accent);
}

.data-version-btn.disabled {
  color: var(--text-tertiary);
  pointer-events: none;
  cursor: default;
}

/* ----------------------------------------------------------
   3. Card list
   ---------------------------------------------------------- */
.data-card-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
}

.data-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.data-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  box-shadow: 0 8px 40px rgba(0,0,0,0.25), var(--glass-inner-shadow);
  transform: translateY(-2px);
}

.data-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.data-card-body {
  flex: 1; min-width: 0;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.data-card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
}

.data-card-sub {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.data-card-version {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.12rem 0.5rem;
  border-radius: 999px;
  white-space: nowrap;
}

/* Current test version → green */
.data-card-version.current {
  color: #4ade80;
  background: rgba(74, 222, 128, 0.12);
}

/* Not the current test version → yellow */
.data-card-version.outdated {
  color: #facc15;
  background: rgba(250, 204, 21, 0.12);
}

.data-card-date {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  white-space: nowrap;
}

/* ----------------------------------------------------------
   4. Detail page — main container
   ---------------------------------------------------------- */
.detail-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: calc(var(--navbar-height) + 1.5rem) 1rem 4rem;
  min-height: 100vh;
  max-width: 100%;
  margin: 0 auto;
}

.detail-loading, .detail-error {
  text-align: center; padding: 3rem; color: var(--text-secondary); font-size: 1rem;
}
.detail-error { color: #ff6b6b; }

.detail-title {
  font-size: 1.4rem; font-weight: 700; color: var(--text-primary);
  text-align: center; margin-bottom: 0.5rem;
}

.detail-desc {
  font-size: 0.85rem; color: var(--text-secondary);
  text-align: center; margin-bottom: 0.5rem;
}

/* Release date + version number */
.detail-meta {
  display: flex; justify-content: center; align-items: center; gap: 0.6rem;
  margin-bottom: 1.5rem;
}
.detail-meta-version {
  font-size: 0.8rem; font-weight: 500;
  color: var(--accent); background: rgba(110,168,254,0.1);
  padding: 0.12rem 0.5rem; border-radius: 999px;
}
.detail-meta-date {
  font-size: 0.8rem; font-weight: 500;
  color: var(--accent);
  background: rgba(110,168,254,0.1);
  padding: 0.12rem 0.5rem; border-radius: 999px;
}

/* Data image + calculation standards (wrapped in the same card) */
.detail-image {
  width: 100%; max-width: 1200px; padding: 1.5rem 1.5rem 1rem 1.5rem;
  background: rgba(0,0,0,0.3); border-radius: var(--radius-lg);
  margin-bottom: 2rem; text-align: center; cursor: pointer;
}
.detail-image img {
  max-width: 100%; height: auto; display: block; margin: 0 auto 1rem auto;
  border-radius: var(--radius-sm);
}

/* Fullscreen image lightbox */
.lightbox-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.9); display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.3s ease;
}
.lightbox-overlay.show { opacity: 1; pointer-events: auto; }
.lightbox-overlay img { max-width: 95vw; max-height: 95vh; object-fit: contain; }

/* Calculation standards (embedded in the image card, title + content on one line, colon-separated) */
.detail-standards {
  display: flex; justify-content: center; gap: 0.75rem; flex-wrap: wrap;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.detail-standard-item {
  display: inline-flex; align-items: center;
  padding: 0.2rem 0.65rem; font-size: 0.72rem; font-weight: 500;
  color: #4ade80;
  border: 1px solid rgba(74,222,128,0.4); border-radius: 999px;
  background: rgba(74,222,128,0.06);
}

/* Calculation notes (wrapped in a card) */
.detail-notes {
  width: 100%; max-width: 1200px; margin-bottom: 2rem;
  padding: 1.25rem 1.5rem;
}
.detail-notes-title {
  font-size: 0.95rem; font-weight: 700; color: var(--accent); margin-bottom: 0.6rem;
}
.detail-notes p {
  color: #ffffff; font-size: 0.85rem; line-height: 1.7;
  margin-bottom: 0.6rem;
}
.detail-notes p:last-child { margin-bottom: 0; }

/* Download buttons (arranged horizontally) */
.detail-downloads {
  display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap;
  width: 100%;
}

.detail-download-btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.6rem 1.25rem; font-size: 0.9rem; font-weight: 500;
  color: var(--text-primary); text-decoration: none;
  border-radius: var(--radius-md);
}
.detail-download-btn:hover {
  background: var(--glass-bg-hover);
  box-shadow: 0 6px 30px rgba(0,0,0,0.25);
  transform: translateY(-2px);
}
.detail-download-btn i { color: var(--accent); }
.file-size { font-size: 0.78rem; color: var(--text-tertiary); margin-left: 0.25rem; }

/* Back button */
.nav-back {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.44rem 0.88rem; border-radius: var(--radius-md);
  font-size: 0.9rem; font-weight: 500; color: var(--text-secondary);
  text-decoration: none; user-select: none;
  transition: color var(--transition-fast), background var(--transition-fast);
}
.nav-back:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }

/* ----------------------------------------------------------
   5. Responsive
   ---------------------------------------------------------- */
@media (max-width: 1024px) {
  .data-main, .detail-main { padding: calc(var(--navbar-height) + 1rem) 1.25rem 3rem; }
}

@media (max-width: 768px) {
  .data-main, .detail-main { padding: 2rem 0.75rem 3rem; }

  /* Horizontal scrolling version navigation */
  .data-version-nav {
    flex-wrap: nowrap; justify-content: flex-start;
    overflow-x: auto; -webkit-overflow-scrolling: touch;
    padding: 0.4rem 0.5rem; gap: 0.25rem;
  }
  .data-version-btn { font-size: 0.75rem; padding: 0.35rem 0.65rem; white-space: nowrap; flex-shrink: 0; }

  .data-card { flex-wrap: wrap; gap: 0.5rem; padding: 0.85rem; }
  .data-card-icon { width: 44px; height: 44px; }
  .data-card-title { font-size: 0.82rem; width: 100%; }
  .data-card-sub { gap: 0.35rem; }
  .data-card-version { font-size: 0.7rem; }
  .data-card-date { font-size: 0.7rem; }

  .detail-title { font-size: 1rem; }
  .detail-desc { font-size: 0.72rem; }
  .detail-meta-version { font-size: 0.7rem; }
  .detail-meta-date { font-size: 0.7rem; }
  .detail-standards { display: none; }
  .detail-standard-item { font-size: 0.65rem; padding: 0.15rem 0.5rem; }
  .detail-notes { padding: 1rem; }
  .detail-notes-title { font-size: 0.82rem; }
  .detail-notes p { font-size: 0.72rem; }
  .detail-download-btn { font-size: 0.75rem; padding: 0.45rem 0.85rem; }
  .file-size { font-size: 0.68rem; }
}

@media (max-width: 400px) {
  .data-card-title { font-size: 0.78rem; }
  .data-card-version { font-size: 0.65rem; }
  .data-card-date { font-size: 0.65rem; }
  .data-version-btn { font-size: 0.7rem; padding: 0.3rem 0.55rem; }
  .data-card-icon { width: 38px; height: 38px; }
  .detail-title { font-size: 0.9rem; }
  .detail-desc { font-size: 0.68rem; }
  .detail-notes-title { font-size: 0.78rem; }
  .detail-notes p { font-size: 0.68rem; }
  .detail-download-btn { font-size: 0.7rem; }
}