/* CSS Variable System for Premium Theme */
:root {
    --bg-dark-sidebar: #0f172a;
    --bg-dark-editor: #1e293b;
    --bg-light-canvas: #f8fafc;
    
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #e0e7ff;
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dark: #0f172a;
    --text-dark-muted: #475569;
    
    --border-color: #334155;
    --border-light: #e2e8f0;
    
    --font-heading: 'Outfit', -apple-system, sans-serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, sans-serif;
    
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-premium: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
}

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

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: var(--font-body);
    background-color: var(--bg-light-canvas);
    color: var(--text-dark);
}

/* App Layout */
.app-container {
    display: flex;
    width: 100%;
    height: 100%;
}

/* Sidebar Styling */
.sidebar {
    width: 380px;
    background-color: var(--bg-dark-sidebar);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    z-index: 10;
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 6px;
}

.logo-icon {
    font-size: 24px;
    color: var(--primary-color);
}

.logo h1 {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 700;
}

.logo .accent {
    background: linear-gradient(135deg, #818cf8 0%, #4f46e5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 12px;
    color: var(--text-muted);
}

/* Navigation Tabs */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(255,255,255,0.02);
}

.tab-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 14px;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 13px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
    border-bottom: 2px solid transparent;
}

.tab-btn:hover {
    color: var(--text-main);
    background-color: rgba(255,255,255,0.04);
}

.tab-btn.active {
    color: #818cf8;
    border-bottom-color: #818cf8;
    background-color: rgba(255,255,255,0.02);
}

/* Tab Content Areas */
.tab-content {
    display: none;
    flex: 1;
    flex-direction: column;
    padding: 20px;
    overflow-y: auto;
}

.tab-content.active {
    display: flex;
}

/* Editor Action Headers */
.editor-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.status-indicator {
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 9999px;
}

.status-indicator.valid {
    color: #34d399;
    background-color: rgba(52, 211, 153, 0.1);
}

.status-indicator.invalid {
    color: #f87171;
    background-color: rgba(248, 113, 113, 0.1);
}

.icon-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.icon-btn:hover {
    color: var(--text-main);
    background-color: var(--border-color);
}

.icon-btn.danger:hover {
    background-color: #7f1d1d;
    border-color: #991b1b;
    color: #fca5a5;
}

/* Textarea / Code Editor wrapper */
.textarea-wrapper {
    flex: 1;
    position: relative;
    margin-bottom: 16px;
    min-height: 250px;
}

textarea {
    width: 100%;
    height: 100%;
    background-color: var(--bg-dark-editor);
    color: #e2e8f0;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 13px;
    line-height: 1.5;
    resize: none;
    outline: none;
}

textarea:focus {
    border-color: #6366f1;
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.25);
}

/* File Actions */
.file-operations {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* Form Styling inside Settings Tab */
.config-group {
    margin-bottom: 24px;
}

.config-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.radio-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.radio-card {
    cursor: pointer;
}

.radio-card input {
    display: none;
}

.radio-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 13px;
    transition: all 0.2s;
    background-color: rgba(255,255,255,0.01);
}

.radio-card input:checked + .radio-content {
    background-color: rgba(99, 102, 241, 0.1);
    border-color: #6366f1;
    color: #818cf8;
}

.form-select {
    width: 100%;
    padding: 10px 14px;
    background-color: var(--bg-dark-editor);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-main);
    font-size: 14px;
    outline: none;
    cursor: pointer;
}

.theme-picker {
    display: flex;
    gap: 12px;
}

.theme-dot {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform 0.2s, border-color 0.2s;
}

.theme-dot:hover {
    transform: scale(1.1);
}

.theme-dot.active {
    border-color: #ffffff;
    box-shadow: 0 0 0 2px var(--primary-color);
}

.range-wrapper {
    display: flex;
    align-items: center;
    gap: 14px;
}

.range-wrapper input {
    flex: 1;
    accent-color: #6366f1;
}

.range-val {
    font-size: 14px;
    color: var(--text-muted);
    min-width: 48px;
}

/* Sidebar Footer (Export Actions) */
.sidebar-footer {
    padding: 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 12px;
    background-color: rgba(0,0,0,0.15);
}

/* Buttons */
.btn {
    padding: 12px 18px;
    border-radius: 8px;
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s;
    border: none;
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #4f46e5 0%, #4338ca 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
}

.btn-secondary {
    background-color: var(--bg-dark-editor);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    background-color: rgba(255,255,255,0.05);
    border-color: var(--text-muted);
}

/* Main Display Pane */
.chart-pane {
    flex: 1;
    height: 100%;
    position: relative;
    background-color: var(--bg-light-canvas);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Floating Navigation Controls */
.floating-controls {
    position: absolute;
    top: 24px;
    left: 24px;
    right: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 5;
    pointer-events: none;
}

.search-box {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-light);
    border-radius: 30px;
    padding: 6px 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-md);
    pointer-events: auto;
    width: 280px;
    transition: all 0.3s;
}

.search-box:focus-within {
    width: 320px;
    box-shadow: var(--shadow-lg);
    background: #ffffff;
    border-color: #818cf8;
}

.search-icon {
    color: var(--text-dark-muted);
    font-size: 15px;
}

.search-box input {
    background: none;
    border: none;
    outline: none;
    width: 100%;
    font-size: 14px;
    color: var(--text-dark);
    font-family: var(--font-body);
}

.zoom-controls {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-light);
    border-radius: 30px;
    padding: 6px;
    display: flex;
    gap: 4px;
    box-shadow: var(--shadow-md);
    pointer-events: auto;
}

.control-btn {
    background: none;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    color: var(--text-dark-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 15px;
    transition: all 0.2s;
}

.control-btn:hover {
    background-color: var(--border-light);
    color: var(--text-dark);
}

/* Canvas Container */
.chart-container {
    width: 100%;
    height: 100%;
    cursor: grab;
}

.chart-container:active {
    cursor: grabbing;
}

/* Empty State */
.empty-state {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: none;
}

.empty-icon {
    font-size: 64px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.empty-state h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 14px;
    color: var(--text-dark-muted);
    max-width: 320px;
}

/* ----------------------------------------------------
   Custom Stylings for Org Chart DOM Nodes (D3 Render)
   ---------------------------------------------------- */
.custom-node {
    box-sizing: border-box;
    font-family: var(--font-body);
    width: 100%;
    height: 100%;
    background-color: #ffffff;
    border-radius: 12px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-premium);
    display: flex;
    flex-direction: column;
    padding: 16px;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: visible;
}

.custom-node:hover {
    box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.1), 0 5px 10px -5px rgba(0, 0, 0, 0.05);
}

.node-accent {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    border-radius: 12px 12px 0 0;
}

.node-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 4px;
}

.node-avatar-container {
    position: relative;
}

.node-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    background-color: #f1f5f9;
    border: 2px solid #ffffff;
    box-shadow: var(--shadow-sm);
}

.node-initials {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
    color: #475569;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #ffffff;
    box-shadow: var(--shadow-sm);
}

.node-details {
    display: flex;
    flex-direction: column;
    min-width: 0; /* allows text truncation */
}

.node-name {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.node-role {
    font-size: 11px;
    color: var(--text-dark-muted);
    font-weight: 500;
    margin-top: 1px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.node-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 10px;
    border-top: 1px solid #f1f5f9;
}

.node-dept {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 2px 8px;
    border-radius: 4px;
    background-color: #f1f5f9;
    color: #475569;
    max-width: 130px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.node-reports {
    font-size: 10px;
    color: var(--text-dark-muted);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
}

.node-reports i {
    color: var(--primary-color);
}

/* Custom styles for d3-org-chart SVG nodes link paths */
.link {
    stroke: #cbd5e1 !important;
    stroke-width: 2px !important;
}

.node-button-div {
    border: 1px solid #cbd5e1 !important;
    background-color: #ffffff !important;
    color: #64748b !important;
    border-radius: 50% !important;
    width: 20px !important;
    height: 20px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 10px !important;
    box-shadow: var(--shadow-sm) !important;
    transition: all 0.2s !important;
}

.node-button-div:hover {
    color: #0f172a !important;
    border-color: #94a3b8 !important;
    background-color: #f8fafc !important;
}