/* SPDX-License-Identifier: AGPL-3.0-or-later */

:root {
  --sidebar-width: 2em;
  --keyboard-height: 220px;

  /* Z-index layers */
  --z-base: 1;
  --z-base-active: 10;
  --z-local-ui: 100;
  --z-panel: 500;
  --z-dialog: 1000;
  --z-gesture: 5000;
  --z-chrome: 6000;
  --z-sheet: 7000;
  --z-modal: 8000;

  /* Keyboard offset - set to keyboard height when keyboard is open */
  --keyboard-offset: 0px;
}

body.keyboard-open {
  --keyboard-offset: var(--keyboard-height);
}

* {
  box-sizing: border-box;
}

html {
  padding: 0;
  margin: 0;
  height: 100%;
  width: 100%;
  font-family: var(--font-family-base);
}

body {
  padding: 0;
  margin: 0;
  height: 100%;
  width: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  color: var(--color-text-menu);
}

#header {
  height: var(--size-header-height);
  padding: var(--spacing-xs) var(--spacing-sm);
  width: fit-content;
  background: var(--bg-header);
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  cursor: default;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  /* switch back (permanently?) to a regular OS provided window frame */
  display: none;
}

#header img {
  width: var(--size-icon);
}

#header .close {
  cursor: pointer;
}

#header .resize {
  cursor: nw-resize;
}

main {
  display: flex;
  background: var(--bg-main);
  height: 100%;
}

#sidebar {
  display: flex;
  flex-direction: column;
  padding: var(--spacing-xs);
  gap: var(--spacing-xs);
  width: var(--sidebar-width);
}

#views-icons {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  overflow-y: auto;
  overflow-x: hidden;
}

.view-icon {
  width: 1.5em;
  height: 1.5em;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-webview);
  border: 2px solid transparent;
  transition: border-color var(--transition-fast), opacity var(--transition-fast);
  opacity: var(--opacity-muted);
}

.view-icon:hover {
  opacity: 1;
}

.view-icon.active {
  border-color: var(--color-focus-ring);
  opacity: 1;
}

.view-icon-img {
  width: 1em;
  height: 1em;
  object-fit: contain;
}

.view-icon-img[src=""] {
  display: none;
}

.sidebar-preview {
  position: fixed;
  z-index: var(--z-dialog);
  background: var(--bg-menu);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 16px var(--color-shadow-menu);
  padding: var(--spacing-sm);
  width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-8px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  pointer-events: none;
}

.sidebar-preview.visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.sidebar-preview-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-xs);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-preview-screenshot {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  display: block;
}

lucide-icon {
  font-size: var(--size-icon-sm);
  cursor: pointer;
  font-weight: var(--font-weight-bold);
}

#root {
  flex: 1;
  display: flex;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  position: relative; /* For overview overlay positioning */
}

#footer {
  display: none; /* Hidden by default, shown when keyboard is active */
  height: var(--keyboard-height);
  padding: 0;
  background: var(--bg-footer);
}

#footer.visible {
  display: block;
}

#keyboard-frame {
  width: 100%;
  height: 100%;
  border: none;
}

/* Each panel is a full-viewport-width container that holds a split tree */
.panel {
  position: relative; /* For absolutely positioned resize handles */
  display: grid;
  gap: var(--spacing-sm);
  width: calc(100vw - var(--sidebar-width));
  height: 100%;
  scroll-snap-align: start;
  padding: var(--spacing-sm);
  /* Grid template is set dynamically by LayoutManager */
}

/* Disable pointer events on webviews during resize */
body.resizing web-view {
  pointer-events: none;
}

/* Resize handles between split views */
.resize-handle {
  z-index: var(--z-local-ui);
  background: transparent;
  transition: background var(--transition-fast);
}

.resize-handle:hover {
  background: var(--color-resize-handle-hover);
}

.resize-handle-horizontal {
  cursor: col-resize;
}

.resize-handle-vertical {
  cursor: row-resize;
}

#notifications-icon-container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: var(--spacing-xs) 0;
}

#notifications-icon {
  opacity: var(--opacity-muted);
  transition: opacity var(--transition-fast);
}

#notifications-icon-container:hover #notifications-icon {
  opacity: 1;
}

#notifications-badge {
  position: absolute;
  top: 0;
  right: -0.1em;
  min-width: 1em;
  height: 1em;
  border-radius: 0.5em;
  background: var(--color-danger);
  color: var(--color-text-on-header);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--spacing-xs);
}

#notifications-badge.hidden {
  display: none;
}