/* ===== Global base font size for all playground pages ===== */
/* Bumped from default 16px to improve readability of rem-based sizes */
html {
  font-size: 17px !important;
}

/* ===== Font size normalization — override too-small rem values ===== */
/* Uses !important to override page-level <style> blocks that come after this <link> */
body.has-pg-nav {
  font-size: 14px !important;
  line-height: 1.6 !important;
}
body.has-pg-nav .ctrl-group label,
body.has-pg-nav .sec-t,
body.has-pg-nav .panel-title,
body.has-pg-nav .section-title {
  font-size: 12px !important;
}
body.has-pg-nav .ctrl-group select,
body.has-pg-nav .ctrl-group input[type="text"],
body.has-pg-nav .btn,
body.has-pg-nav .preset-btn,
body.has-pg-nav .pbtn {
  font-size: 13px !important;
}
body.has-pg-nav .step-label,
body.has-pg-nav .card-hd,
body.has-pg-nav .tab,
body.has-pg-nav .info-text,
body.has-pg-nav .trace-entry .from {
  font-size: 13px !important;
}
body.has-pg-nav .step-detail,
body.has-pg-nav .trace-entry .content,
body.has-pg-nav .log-entry,
body.has-pg-nav .ack-flow-entry,
body.has-pg-nav .ctx-item {
  font-size: 12px !important;
}
body.has-pg-nav .header p,
body.has-pg-nav .card-desc,
body.has-pg-nav .card-body,
body.has-pg-nav .chunk-text,
body.has-pg-nav .info-card p {
  font-size: 13px !important;
  line-height: 1.7 !important;
}
body.has-pg-nav .header h1,
body.has-pg-nav h1 {
  font-size: 1.5rem !important;
}
body.has-pg-nav .key-item,
body.has-pg-nav .ack-badge,
body.has-pg-nav .chunk-id,
body.has-pg-nav .chunk-meta {
  font-size: 11px !important;
}

/* ===== Navigation bar ===== */
.pg-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  height: 48px;
  background: rgba(8, 11, 18, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border, #1e2a3a);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 14px;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 13px;
  transition: background 0.3s, border-color 0.3s;
}
.pg-nav a {
  color: var(--text-secondary, #7d8da0);
  text-decoration: none;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}
.pg-nav a:hover {
  color: var(--accent-blue, #4da3ff);
}
.pg-nav-home {
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 8px;
  background: var(--bg-elevated, #161c26);
  border: 1px solid var(--border, #1e2a3a);
  transition: all 0.2s;
}
.pg-nav-home:hover {
  border-color: var(--accent-blue, #4da3ff) !important;
  background: rgba(77, 163, 255, 0.08) !important;
}
.pg-nav-title {
  flex: 1;
  color: var(--text-primary, #e8edf5);
  font-weight: 600;
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pg-nav-prev,
.pg-nav-next {
  font-size: 12px;
  padding: 5px 12px;
  border-radius: 6px;
  border: 1px solid var(--border, #1e2a3a);
  background: var(--bg-elevated, #161c26);
  transition: all 0.2s;
}
.pg-nav-prev:hover,
.pg-nav-next:hover {
  border-color: var(--accent-blue, #4da3ff) !important;
}
.pg-nav-sep {
  width: 1px;
  height: 20px;
  background: var(--border, #1e2a3a);
  flex-shrink: 0;
}
.pg-nav-theme-btn {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border, #1e2a3a);
  background: var(--bg-elevated, #161c26);
  color: var(--text-secondary, #7d8da0);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: all 0.2s;
  flex-shrink: 0;
}
.pg-nav-theme-btn:hover {
  border-color: var(--accent-orange, #ff9f43);
  color: var(--accent-orange, #ff9f43);
  background: rgba(255, 159, 67, 0.08);
}

/* Push page content down */
body.has-pg-nav {
  padding-top: 48px !important;
}
body.has-pg-nav .app,
body.has-pg-nav .layout {
  height: calc(100vh - 48px) !important;
}

/* Mobile */
@media (max-width: 640px) {
  .pg-nav-prev, .pg-nav-next { display: none; }
  .pg-nav-sep:nth-of-type(2) { display: none; }
  .pg-nav-title { font-size: 13px; }
  .pg-nav { padding: 0 12px; gap: 10px; height: 44px; }
  body.has-pg-nav { padding-top: 44px !important; }
}

/* Mobile hint */
.pg-mobile-hint {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9998;
  padding: 12px 20px;
  background: rgba(77, 163, 255, 0.1);
  border-top: 1px solid var(--accent-blue, #4da3ff);
  color: var(--text-secondary, #7d8da0);
  font-size: 13px;
  text-align: center;
  font-family: 'Inter', system-ui, sans-serif;
  backdrop-filter: blur(8px);
}
@media (max-width: 768px) {
  .pg-mobile-hint { display: block; }
}
.pg-mobile-hint-close {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-secondary, #7d8da0);
  cursor: pointer;
  font-size: 18px;
}