/* 2026-03 layout refresh: classic header shell with full-width content */
html, body {
  min-height: 100%;
}
body {
  display: flex;
  flex-direction: column;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  width: 100%;
  padding: 12px 18px 0;
  background: transparent;
  border-bottom: 0;
  box-shadow: none;
}

.site-header-inner {
  width: 100%;
  margin: 0;
  padding: 12px 14px;
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: #f7fafc;
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .04);
}

.site-header-left {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 18px;
  flex: 1 1 auto;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 0;
  padding-right: 18px;
  margin-right: 2px;
  border-right: 1px solid var(--border);
  flex: 0 0 auto;
}

.site-brand-copy {
  display: none;
}

.site-header .toolbar-logo {
  width: 158px;
  max-width: 158px;
}

.classic-nav {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex-wrap: nowrap;
  padding: 6px;
  background: #eef2f7;
  border: 1px solid var(--border);
  border-radius: 18px;
}

.classic-nav .tab-button {
  border: 1px solid transparent;
  background: transparent;
  border-radius: 14px;
  padding: 11px 18px;
  color: #60708c;
  font-weight: 700;
  white-space: nowrap;
  box-shadow: none;
}

.classic-nav .tab-button:hover {
  background: #f8fbff;
  border-color: #d9e4f3;
  color: #2b4a80;
}

.classic-nav .tab-button.active {
  background: #e8f0fe;
  border-color: #bfd0f2;
  color: var(--primary);
}

.compact-actions {
  justify-self: end;
  flex: 0 0 auto;
}

.density-switcher {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  white-space: nowrap;
}

.density-switcher span {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.density-switcher select {
  width: auto;
  min-width: 142px;
  margin: 0;
  height: 36px;
  padding-top: 6px;
  padding-bottom: 6px;
  border-radius: 12px;
  background: #fff;
}

.app-shell {
  flex: 1 0 auto;
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 12px 18px 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-panel {
  width: 100%;
}

.page-panel > main,
.page-panel > section {
  width: 100%;
}

.app-footer {
  flex-shrink: 0;
  width: 100%;
  margin-top: auto;
  padding: 0 18px 12px;
  background: transparent;
  border-top: 0;
}

.app-footer-inner {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 13px;
  background: #f7fafc;
  border: 1px solid var(--border);
  border-radius: 18px;
}

.toolbar,
.corporate-header {
  all: unset;
}

.home-layout,
.layout-stack,
.admin-layout {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.home-hero-card,
.home-markdown,
.input-card,
.result-card,
.split-card,
.admin-card {
  padding: 18px;
}

.form-block:last-child,
.admin-form-grid .form-block:last-child {
  margin-bottom: 0;
}


.xml-index-node {
  border: 1px solid #d8e3f3;
  border-radius: 12px;
  margin-bottom: 8px;
  background: #f9fbff;
}
.xml-index-node summary {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 11px;
  font-weight: 700;
}
.xml-index-node-children {
  border-top: 1px solid #e5edf8;
  padding: 8px 8px 8px 16px;
  background: #fff;
}
.xml-index-node-type {
  flex: 0 0 auto;
  border-radius: 999px;
  background: #e8f2ff;
  color: #0b5cad;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 800;
}
.xml-index-node-name {
  color: #0b5cad;
  white-space: nowrap;
}
.xml-index-node-label {
  color: #10233f;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.xml-index-field-full {
  margin-left: var(--xml-index-indent, 0px);
  background: #fff;
  border: 1px solid #edf2f8;
  border-radius: 10px;
  margin-bottom: 6px;
}

@media (max-width: 1100px) {
  .site-header-inner {
    align-items: stretch;
    flex-direction: column;
    gap: 12px;
  }

  .site-header-left {
    width: 100%;
  }

  .compact-actions {
    align-self: flex-end;
  }
}

@media (max-width: 768px) {
  .site-header {
    padding: 10px 12px 0;
  }

  .site-header-inner,
  .app-footer-inner {
    padding-left: 12px;
    padding-right: 12px;
  }

  .app-shell,
  .app-footer {
    padding-left: 12px;
    padding-right: 12px;
  }

  .site-header-left {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .site-brand {
    border-right: 0;
    padding-right: 0;
    margin-right: 0;
  }

  .classic-nav {
    width: 100%;
    overflow-x: auto;
    justify-content: flex-start;
  }

  .classic-nav .tab-button {
    flex: 0 0 auto;
    text-align: center;
  }

  .compact-actions {
    align-self: stretch;
  }

  .density-switcher {
    width: 100%;
    justify-content: space-between;
  }

  .density-switcher select {
    min-width: 0;
    width: 150px;
  }
}