/* =========================================================
   BuriedKeep Core Shell — Layout Test Visual Pass 6
   Uses canonical Site Panel + global theme variables.

   Load order:
     global-1.css -> site-panel/menu/user CSS -> workspace.css -> core-shell.css

   Visual rules for this pass:
     - Whole page uses --bg-main.
     - Site Bar Panel uses --bg-panel.
     - Menu/Submenu/Config bars touch with no vertical gaps.
     - Each bar has its own border.
     - Menu Bar has rounded top corners.
     - Submenu Bar has square corners.
     - Bar visibility is registry/page controlled.
     - Visible bars auto-adjust rounded corners.
     - Nav items are text links, not visual buttons.
     - Active item is shown with an underline.
     - Nav item typography uses the default body/text font.
   ========================================================= */

:root {
  --bk-core-bar-height: 28px;
  --bk-core-gap: 0.65rem;
  --bk-core-radius: 14px;
  --bk-core-active-underline: 2px;
  --bk-core-tab-gap: 0.75rem;
  --bk-core-visible-bar-count: 3;
  --bk-core-menu-tab-size: 0.875rem;
  --bk-core-submenu-tab-size: 0.75rem;
}

html,
body {
  background: var(--bg-main);
}

body {
  min-height: 100vh;
  overflow: hidden;
}

.bk-core-bars {
  flex: 0 0 auto;
  gap: 0;
  padding: 0 1rem;
  background: var(--bg-panel);
  box-shadow: none;
}

.bk-core-bar {
  min-height: var(--bk-core-bar-height);
  padding: 0 0.45rem;
  gap: var(--bk-core-tab-gap);
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
  border: var(--border-soft);
  background: var(--bg-panel);
}

.bk-core-menu-bar,
.bk-core-submenu-bar,
.bk-core-config-bar {
  border-radius: 0;
  border-bottom-width: 0;
}

.bk-core-config-bar {
  min-height: var(--bk-core-bar-height);
}

.bk-core-bar[hidden] {
  display: none !important;
}

.bk-core-bar.is-first-visible {
  border-radius: var(--bk-core-radius) var(--bk-core-radius) 0 0;
}

.bk-core-bar.is-last-visible {
  border-bottom-width: 1px;
  border-radius: 0 0 var(--bk-core-radius) var(--bk-core-radius);
}

.bk-core-bar.is-only-visible {
  border-bottom-width: 1px;
  border-radius: var(--bk-core-radius);
}

.bk-core-nav-button,
.bk-core-config-button,
.bk-core-list-item {
  appearance: none;
  -webkit-appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border: 0;
  outline: 0;
  box-shadow: none;
  background: transparent;
  color: var(--text-main);
  border-radius: 0;
  cursor: pointer;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  box-sizing: border-box;
}

/* Menu/Submenu items intentionally mimic admin.html .admin-tab. */
.site-bar-panel .bk-core-menu-bar button.bk-core-nav-button,
.site-bar-panel .bk-core-submenu-bar button.bk-core-nav-button {
  appearance: none !important;
  -webkit-appearance: none !important;
  border: 0 !important;
  outline: 0;
  box-shadow: none !important;
  background: transparent !important;
  background-image: none !important;
  border-radius: 0 !important;
  min-height: var(--bk-core-bar-height);
  padding: 0.05rem 0.125rem;
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--bk-core-menu-tab-size);
  font-weight: 400;
  color: var(--text-main);
  opacity: 0.6;
  border-bottom: 2px solid transparent !important;
  transition: opacity 0.25s ease, border-color 0.25s ease;
}

.site-bar-panel .bk-core-submenu-bar button.bk-core-nav-button {
  font-size: var(--bk-core-submenu-tab-size);
}


.site-bar-panel .bk-core-menu-bar button.bk-core-nav-button:hover,
.site-bar-panel .bk-core-submenu-bar button.bk-core-nav-button:hover {
  opacity: 0.9;
  background: transparent !important;
  border-color: transparent !important;
}

.site-bar-panel .bk-core-menu-bar button.bk-core-nav-button[aria-current="page"],
.site-bar-panel .bk-core-submenu-bar button.bk-core-nav-button[aria-current="page"] {
  opacity: 1;
  background: transparent !important;
  border-bottom-color: #8a6e3b !important;
}

.site-bar-panel .bk-core-menu-bar button.bk-core-nav-button:focus-visible,
.site-bar-panel .bk-core-submenu-bar button.bk-core-nav-button:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent-gold) 65%, transparent);
  outline-offset: 3px;
}

/* Config controls are allowed to remain controls, not admin-style tabs. */
.bk-core-config-button {
  min-height: 24px;
  padding: 0.1rem 0.35rem;
  border-radius: 10px;
  border: var(--border-soft);
  background: var(--bg-panel-soft);
  color: var(--text-main);
  font-family: var(--font-text, var(--font-body));
  font-size: 0.92rem;
  font-weight: 700;
  opacity: 1;
}

.bk-core-config-button:hover {
  background: var(--bg-panel-soft);
  filter: brightness(0.98);
}

.bk-core-config-button[aria-pressed="true"] {
  border: var(--border-strong);
  background: var(--accent-gold);
}

.bk-core-config-icon-button {
  appearance: none;
  -webkit-appearance: none;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
}

.bk-core-config-icon-button:hover {
  background: rgba(0, 0, 0, 0.06);
}

.bk-core-config-icon-button img {
  width: 20px;
  height: 20px;
  display: block;
}


.bk-core-config-label {
  color: var(--text-main);
  opacity: 0.78;
  font-weight: 800;
  font-size: 0.86rem;
}

.bk-core-config-spacer {
  flex: 1 1 auto;
}

.bk-core-config-select,
select.bk-core-config-button {
  appearance: auto;
  -webkit-appearance: auto;
  min-height: 24px;
  padding: 0.1rem 0.35rem;
  border-radius: 999px;
  border: var(--border-soft);
  background: var(--bg-panel);
  color: var(--text-main);
  font-family: var(--font-text, var(--font-body));
  font-size: 0.95rem;
  opacity: 1;
}

select.bk-core-config-button::after {
  display: none;
}


.bk-core-main {
  height: calc(90% - ((var(--bk-core-bar-height) * var(--bk-core-visible-bar-count, 3)) + 2px));
  min-height: 0;
  padding: 0.8rem;
  overflow: hidden;
  background: var(--bg-main);
}

.bk-core-workspace {
  height: 100%;
  display: grid;
  grid-template-columns: minmax(240px, 300px) 1fr;
  gap: var(--bk-core-gap);
  min-height: 0;
}

.bk-core-listings,
.bk-core-content {
  min-height: 0;
  overflow: auto;
  margin-bottom: 0;
}

.bk-core-listings {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.bk-core-listings h2,
.bk-core-content h2,
.bk-core-modal-panel h2 {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  color: var(--text-main);
}

.bk-core-list-item {
  justify-content: flex-start;
  width: 100%;
  min-height: 36px;
  padding: 0.5rem 0.2rem;
  border-radius: 0;
  font-family: var(--font-body);
  font-weight: 800;
}

.bk-core-list-item:hover {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.bk-core-field {
  margin-top: 1rem;
}

.bk-core-field label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 900;
}

.bk-core-textarea {
  width: 100%;
  min-height: 190px;
  resize: vertical;
  padding: 0.75rem;
  border-radius: 12px;
  border: var(--border-soft);
  background: rgba(255,255,255,0.68);
  color: var(--text-main);
  font-family: var(--font-text, var(--font-body));
  box-sizing: border-box;
}

.bk-core-textarea:focus {
  outline: 2px solid var(--accent-gold);
  outline-offset: 2px;
}

.bk-core-map-test {
  margin-top: 1rem;
  min-height: 92px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.3rem;
  border-radius: 14px;
  border: 2px dashed var(--theme-copper-border, var(--accent-gold));
  background: color-mix(in srgb, var(--bg-panel) 70%, var(--theme-copper-border, var(--accent-gold)) 30%);
  cursor: context-menu;
}

.bk-core-modal-layer {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  background: rgba(0,0,0,0.42);
}

.bk-core-modal-layer[hidden] {
  display: none;
}

.bk-core-modal-panel {
  width: min(520px, calc(100vw - 32px));
  margin: 0;
}

.bk-core-modal-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 1rem;
}

@media (max-width: 780px) {
  body {
    overflow: auto;
  }

  .bk-core-bars {
    padding: 0 0.5rem;
  }

  .bk-core-main {
    height: auto;
    overflow: visible;
  }

  .bk-core-workspace {
    grid-template-columns: 1fr;
  }
}