/* ============================================
   AtlasInfo Editor JS — Advanced Edition
   Dark Theme Stylesheet
   ============================================ */

:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #0f3460;
    --bg-panel: #1e1e3a;
    --bg-input: #2a2a4a;
    --bg-hover: #2a2a5a;
    --bg-active: #3a3a6a;
    --text-primary: #e0e0ff;
    --text-secondary: #a0a0c0;
    --text-muted: #6a6a8a;
    --accent: #e94560;
    --accent-hover: #ff6b81;
    --accent-soft: rgba(233, 69, 96, 0.2);
    --success: #00d68f;
    --warning: #ffaa00;
    --error: #ff4444;
    --border: #2a2a4a;
    --border-light: #3a3a5a;
    --shadow: rgba(0, 0, 0, 0.4);
    --radius: 6px;
    --radius-lg: 10px;
    --transition: 0.2s ease;
    --sidebar-width: 280px;
    --toolbar-height: 48px;
    --statusbar-height: 28px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 14px;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
    user-select: none;
}

/* ============================================
   Welcome Screen / File Loader
   ============================================ */
#welcome-screen {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

#welcome-screen.hiding {
    opacity: 0;
    transform: scale(0.95);
    pointer-events: none;
}

.welcome-card {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
    box-shadow: 0 20px 60px var(--shadow);
    max-width: 480px;
    width: 90%;
}

.welcome-card h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--accent), #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.welcome-card p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 14px;
}

.file-drop-zone {
    border: 2px dashed var(--border-light);
    border-radius: var(--radius);
    padding: 40px 20px;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 16px;
}

.file-drop-zone:hover,
.file-drop-zone.dragover {
    border-color: var(--accent);
    background: var(--accent-soft);
}

.file-drop-zone .icon {
    font-size: 48px;
    margin-bottom: 12px;
    display: block;
}

.file-drop-zone .label {
    color: var(--text-secondary);
    font-size: 14px;
}

.file-drop-zone .label strong {
    color: var(--accent);
}

.welcome-option {
    display: flex;
    gap: 12px;
    margin-top: 12px;
}

.welcome-option .btn {
    flex: 1;
}

#file-input {
    display: none;
}

/* ============================================
   Main Layout
   ============================================ */
#app-layout {
    display: flex;
    width: 100vw;
    height: 100vh;
    flex-direction: column;
}

#app-layout.visible {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ============================================
   Toolbar
   ============================================ */
#toolbar {
    height: var(--toolbar-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 12px;
    gap: 8px;
    flex-shrink: 0;
    z-index: 100;
}

.toolbar-group {
    display: flex;
    align-items: center;
    gap: 4px;
}

.toolbar-separator {
    width: 1px;
    height: 24px;
    background: var(--border-light);
    margin: 0 6px;
}

.toolbar-label {
    color: var(--text-secondary);
    font-size: 12px;
    margin-right: 4px;
    white-space: nowrap;
}

#toolbar .spacer {
    flex: 1;
}

#search-box {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    padding: 4px 10px;
    font-size: 12px;
    width: 200px;
    outline: none;
    transition: var(--transition);
}

#search-box:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-soft);
}

#search-box::placeholder {
    color: var(--text-muted);
}

#zoom-display {
    font-size: 12px;
    color: var(--text-secondary);
    min-width: 50px;
    text-align: center;
}

#zoom-slider {
    width: 100px;
    accent-color: var(--accent);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-light);
}

.btn:active {
    background: var(--bg-active);
    transform: scale(0.97);
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn-icon {
    padding: 6px 8px;
    min-width: 32px;
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn-success {
    background: var(--success);
    border-color: var(--success);
    color: #111;
}

.btn-success:hover {
    opacity: 0.9;
}

/* ============================================
   Content Area (sidebar + canvas + sidebar)
   ============================================ */
#content-area {
    display: flex;
    flex: 1;
    overflow: hidden;
    position: relative;
}

/* ============================================
   Left Sidebar — Cell List
   ============================================ */
#left-sidebar {
    width: var(--sidebar-width);
    background: var(--bg-panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: width var(--transition);
    overflow: hidden;
}

#left-sidebar.collapsed {
    width: 0;
    border-right: none;
}

.sidebar-header {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.sidebar-header h3 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-filter {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.sidebar-filter input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    padding: 5px 8px;
    font-size: 12px;
    outline: none;
    transition: var(--transition);
}

.sidebar-filter input:focus {
    border-color: var(--accent);
}

.sidebar-filter input::placeholder {
    color: var(--text-muted);
}

#cell-list {
    flex: 1;
    overflow-y: auto;
    padding: 4px 0;
}

#cell-list::-webkit-scrollbar {
    width: 6px;
}

#cell-list::-webkit-scrollbar-track {
    background: transparent;
}

#cell-list::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 3px;
}

.cell-item {
    display: flex;
    align-items: center;
    padding: 6px 12px;
    cursor: pointer;
    transition: var(--transition);
    gap: 8px;
    border-left: 3px solid transparent;
}

.cell-item:hover {
    background: var(--bg-hover);
}

.cell-item.selected {
    background: var(--accent-soft);
    border-left-color: var(--accent);
}

.cell-item .color-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.cell-item .cell-name {
    flex: 1;
    font-size: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cell-item .cell-coords {
    font-size: 10px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.cell-count {
    padding: 6px 12px;
    font-size: 11px;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

/* ============================================
   Canvas Container
   ============================================ */
#canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: #0a0a1a;
}

#main-canvas {
    position: absolute;
    top: 0;
    left: 0;
    cursor: grab;
}

#main-canvas.grabbing {
    cursor: grabbing;
}

/* ============================================
   Navigation Buttons (Sol/Sag/Yukari/Asagi)
   ============================================ */
.nav-btn {
    position: absolute;
    z-index: 50;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: var(--radius);
    transition: var(--transition);
    font-size: 18px;
    opacity: 0.7;
}

.nav-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    opacity: 1;
}

#nav-left {
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
}

#nav-right {
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
}

#nav-up {
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
}

#nav-down {
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
}

/* ============================================
   Coordinate Tooltip
   ============================================ */
#coord-tooltip {
    position: absolute;
    bottom: 12px;
    left: 12px;
    background: rgba(0, 0, 0, 0.75);
    color: var(--text-primary);
    padding: 4px 10px;
    border-radius: var(--radius);
    font-size: 12px;
    font-family: 'Consolas', 'Courier New', monospace;
    z-index: 60;
    pointer-events: none;
}

/* ============================================
   Right Sidebar — Properties Panel
   ============================================ */
#right-sidebar {
    width: var(--sidebar-width);
    background: var(--bg-panel);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: width var(--transition);
    overflow: hidden;
}

#right-sidebar.collapsed {
    width: 0;
    border-left: none;
}

.props-empty {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 13px;
    padding: 20px;
    text-align: center;
}

.props-content {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.props-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.props-field label {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.props-field input {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    padding: 6px 8px;
    font-size: 13px;
    outline: none;
    transition: var(--transition);
}

.props-field input:focus {
    border-color: var(--accent);
}

.props-field input[readonly] {
    color: var(--text-muted);
    cursor: default;
}

.props-actions {
    display: flex;
    gap: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--border);
}

.props-actions .btn {
    flex: 1;
}

/* ============================================
   Minimap
   ============================================ */
#minimap-container {
    position: absolute;
    bottom: 12px;
    right: 12px;
    z-index: 60;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 4px 16px var(--shadow);
}

#minimap-canvas {
    display: block;
    cursor: pointer;
}

.minimap-viewport {
    position: absolute;
    border: 2px solid var(--accent);
    background: rgba(233, 69, 96, 0.1);
    pointer-events: none;
}

/* ============================================
   Context Menu
   ============================================ */
#context-menu {
    position: fixed;
    z-index: 9999;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 4px 0;
    min-width: 180px;
    box-shadow: 0 8px 24px var(--shadow);
    display: none;
}

#context-menu.visible {
    display: block;
    animation: menuFade 0.15s ease;
}

@keyframes menuFade {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

.ctx-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 14px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-primary);
    transition: var(--transition);
}

.ctx-item:hover {
    background: var(--bg-hover);
}

.ctx-item .shortcut {
    margin-left: auto;
    font-size: 11px;
    color: var(--text-muted);
}

.ctx-separator {
    height: 1px;
    background: var(--border);
    margin: 4px 0;
}

.ctx-item.danger {
    color: var(--error);
}

/* ============================================
   Modal
   ============================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 9000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: overlayFade 0.2s ease;
}

@keyframes overlayFade {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    min-width: 360px;
    max-width: 90vw;
    box-shadow: 0 20px 60px var(--shadow);
    animation: modalSlide 0.2s ease;
}

@keyframes modalSlide {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.modal h2 {
    font-size: 18px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.modal-field {
    margin-bottom: 14px;
}

.modal-field label {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.modal-field input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    padding: 8px 10px;
    font-size: 14px;
    outline: none;
    transition: var(--transition);
}

.modal-field input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-soft);
}

.modal-error {
    color: var(--error);
    font-size: 12px;
    margin-top: 4px;
    display: none;
}

.modal-error.visible {
    display: block;
}

.modal-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 20px;
}

/* ============================================
   Status Bar
   ============================================ */
#status-bar {
    height: var(--statusbar-height);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 12px;
    gap: 16px;
    font-size: 11px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

#status-bar .spacer {
    flex: 1;
}

/* ============================================
   Toast Notifications
   ============================================ */
#toast-container {
    position: fixed;
    top: 60px;
    right: 16px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px 16px;
    font-size: 13px;
    color: var(--text-primary);
    box-shadow: 0 4px 16px var(--shadow);
    animation: toastIn 0.3s ease;
    min-width: 200px;
    max-width: 360px;
}

.toast.success {
    border-left: 3px solid var(--success);
}

.toast.error {
    border-left: 3px solid var(--error);
}

.toast.info {
    border-left: 3px solid var(--accent);
}

.toast.hiding {
    animation: toastOut 0.3s ease forwards;
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(40px); }
}

/* ============================================
   Scrollbar Global
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 900px) {
    #left-sidebar, #right-sidebar {
        width: 0;
        border: none;
        overflow: hidden;
    }
    .nav-btn {
        width: 28px;
        height: 28px;
        font-size: 14px;
    }
}