:root {
    --bg-dark: #0f172a;
    --bg-sidebar: rgba(15, 23, 42, 0.95);
    --bg-header: rgba(15, 23, 42, 0.7);
    --bg-modal: rgba(30, 41, 59, 0.9);
    --bg-zoom-ctrl: rgba(15, 23, 42, 0.85);
    --bg-nav-help: rgba(15, 23, 42, 0.7);
    --bg-card: rgba(30, 41, 59, 0.7);
    --bg-card-hover: rgba(30, 41, 59, 0.95);
    --bg-input: rgba(15, 23, 42, 0.6);
    --border-color: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --workspace-grad-1: #1e293b;
    --workspace-grad-2: #0f172a;
    
    --color-primary: #3b82f6; /* Blue - In Progress */
    --color-success: #10b981; /* Green - Completed */
    --color-danger: #ef4444;  /* Red - Rejected */
    --color-warning: #f59e0b; /* Yellow/Orange - Pending */
    --color-neutral: #64748b; /* Gray - Default */
    --color-processed: #06b6d4; /* Cyan/Teal - Processed */
    --color-supplementing: #f97316; /* Orange - Supplementing */

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --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-glow: 0 0 15px rgba(59, 130, 246, 0.35);
    
    --font-main: 'Plus Jakarta Sans', sans-serif;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Configurable Sidebar Width */
    --sidebar-width: 350px;
}

/* Light Theme Variables */
body.light-mode {
    --bg-dark: #f8fafc; /* Slate 50 */
    --bg-sidebar: rgba(241, 245, 249, 0.95); /* Slate 100 */
    --bg-header: rgba(241, 245, 249, 0.75);
    --bg-modal: rgba(255, 255, 255, 0.95);
    --bg-zoom-ctrl: rgba(255, 255, 255, 0.9);
    --bg-nav-help: rgba(255, 255, 255, 0.85);
    --bg-card: rgba(255, 255, 255, 0.7);
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    --bg-input: rgba(255, 255, 255, 0.9);
    --border-color: rgba(15, 23, 42, 0.08);
    --text-primary: #0f172a; /* Slate 900 */
    --text-secondary: #475569; /* Slate 600 */
    --text-muted: #64748b; /* Slate 500 */
    
    --workspace-grad-1: #cbd5e1; /* Slate 300 */
    --workspace-grad-2: #f1f5f9; /* Slate 100 */
    
    --color-primary: #1d4ed8; /* Darker blue for light theme readability */
    --color-success: #047857; /* Darker green */
    --color-danger: #b91c1c;  /* Darker red */
    --color-warning: #b45309; /* Darker warning */
    --color-neutral: #64748b;
    --color-processed: #0891b2; /* Cyan/Teal - Processed */
    --color-supplementing: #ea580c; /* Orange - Supplementing */
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.06), 0 4px 6px -4px rgba(0, 0, 0, 0.06);
    --shadow-glow: 0 0 15px rgba(29, 78, 216, 0.1);
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    min-width: 250px;
    max-width: 500px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 10;
    transition: background-color 0.3s ease, width 0.1s ease;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.logo-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(to right, #3b82f6, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-icon {
    font-size: 1.5rem;
    color: #3b82f6;
    -webkit-text-fill-color: initial;
}

/* Theme toggle switch button */
.theme-toggle-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 34px;
    height: 34px;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}
.theme-toggle-btn:hover {
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.2);
    background-color: rgba(255, 255, 255, 0.05);
}
body.light-mode .theme-toggle-btn:hover {
    border-color: rgba(15, 23, 42, 0.15);
    background-color: rgba(15, 23, 42, 0.05);
}

.search-sort-section {
    padding: 12px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.search-box {
    position: relative;
    width: 100%;
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    z-index: 2;
}

.search-box input {
    width: 100%;
    padding: 10px 16px 10px 48px !important;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.85rem;
    transition: var(--transition-smooth);
}

.search-box input:focus {
    outline: none;
    border-color: var(--color-primary);
    background-color: var(--bg-input);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Category Filter Box Styling */
.category-filter-box {
    position: relative;
    width: 100%;
}
.filter-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    z-index: 2;
}
.category-filter-box select {
    width: 100%;
    padding: 10px 36px 10px 48px !important;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.85rem;
    outline: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    appearance: none;
    -webkit-appearance: none;
}
.category-filter-box::after {
    content: '\f107'; /* FontAwesome angle-down */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}
.category-filter-box select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Date Filter Box styling */
.date-filter-box {
    position: relative;
    width: 100%;
}

.date-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    z-index: 2;
}

.date-filter-box input {
    width: 100%;
    padding: 10px 36px 10px 48px !important;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.85rem;
    outline: none;
    transition: var(--transition-smooth);
}

.date-filter-box input::-webkit-datetime-edit {
    padding-left: 4px;
}

.date-filter-box input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.clear-date-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
    line-height: 1;
    padding: 0 2px;
    transition: var(--transition-smooth);
}

.clear-date-btn:hover {
    color: var(--color-danger);
}

.sort-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
}

.sort-box label {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.sort-box select {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    padding: 4px 8px;
    font-family: var(--font-main);
    font-size: 0.8rem;
    outline: none;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.sort-box select:focus {
    border-color: var(--color-primary);
}

/* Backup and Restore Row layout */
.backup-restore-row {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    width: 100%;
}

.backup-restore-row .btn-sm {
    flex: 1;
    padding: 6px 10px;
    font-size: 0.72rem;
    justify-content: center;
    border-radius: 8px;
}

/* Sidebar Resizer Splitter */
.sidebar-resizer {
    width: 4px;
    background-color: var(--border-color);
    cursor: col-resize;
    z-index: 15;
    transition: background-color 0.2s;
    position: relative;
}

.sidebar-resizer:hover,
.sidebar-resizer.active {
    background-color: var(--color-primary);
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

/* Status Filter Tabs container & buttons */
.status-tabs-container {
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(15, 23, 42, 0.1);
    overflow-x: auto;
    scrollbar-width: none; /* Firefox */
}
body.light-mode .status-tabs-container {
    background-color: rgba(0, 0, 0, 0.02);
}
.status-tabs-container::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.status-tabs {
    display: flex;
    gap: 6px;
    width: max-content;
}

.tab-btn {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 8px;
    font-family: var(--font-main);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
}
body.light-mode .tab-btn {
    background-color: rgba(0, 0, 0, 0.02);
}

.tab-btn:hover {
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.08);
}
body.light-mode .tab-btn:hover {
    border-color: rgba(0, 0, 0, 0.15);
    background-color: rgba(0, 0, 0, 0.04);
}

.tab-btn.active {
    background-color: rgba(59, 130, 246, 0.15);
    border-color: var(--color-primary);
    color: var(--text-primary);
}

.tab-count {
    background-color: rgba(0, 0, 0, 0.25);
    padding: 1px 5px;
    border-radius: 5px;
    font-size: 0.65rem;
    color: var(--text-muted);
}
body.light-mode .tab-count {
    background-color: rgba(0, 0, 0, 0.06);
}

.tab-btn.active .tab-count {
    color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.25);
}

.proposal-list-wrapper {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}

.proposal-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.proposal-item {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px 14px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.proposal-item:hover {
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
    background-color: var(--bg-card-hover);
}
body.light-mode .proposal-item:hover {
    border-color: rgba(0, 0, 0, 0.15);
}

.proposal-item.active {
    border-color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.15);
    box-shadow: var(--shadow-glow);
}

.proposal-item-title {
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 6px;
    line-height: 1.4;
    word-break: break-word;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.proposal-item-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.72rem;
    color: var(--text-secondary);
    gap: 6px;
    flex-wrap: wrap;
}

/* Category and Status Badges */
.proposal-badge {
    padding: 3px 6px;
    border-radius: 6px;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.6rem;
    letter-spacing: 0.5px;
}

.proposal-category-badge {
    padding: 3px 6px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 0.62rem;
    text-transform: uppercase;
}

.cat-ubkhcl {
    background-color: rgba(139, 92, 246, 0.15); /* Purple */
    color: #a78bfa;
}
body.light-mode .cat-ubkhcl {
    background-color: rgba(109, 40, 217, 0.08);
    color: #6d28d9;
}

.cat-ubns {
    background-color: rgba(236, 72, 153, 0.15); /* Pink/Magenta */
    color: #f472b6;
}
body.light-mode .cat-ubns {
    background-color: rgba(190, 24, 74, 0.08);
    color: #be184d;
}

.badge-pending { background-color: rgba(245, 158, 11, 0.15); color: var(--color-warning); }
.badge-in-progress { background-color: rgba(59, 130, 246, 0.15); color: var(--color-primary); }
.badge-processed { background-color: rgba(6, 182, 212, 0.15); color: var(--color-processed); }
.badge-supplementing { background-color: rgba(249, 115, 22, 0.15); color: var(--color-supplementing); }
.badge-completed { background-color: rgba(16, 185, 129, 0.15); color: var(--color-success); }
.badge-rejected { background-color: rgba(249, 115, 22, 0.15); color: var(--color-supplementing); }

/* Main Workspace */
.workspace {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    background: radial-gradient(circle at top left, var(--workspace-grad-1), var(--workspace-grad-2) 70%);
    overflow: hidden;
    transition: background 0.3s ease;
}

.workspace-header {
    padding: 16px 30px;
    background-color: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 5;
    transition: background-color 0.3s ease;
}

.active-proposal-info h2 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.active-proposal-meta {
    display: flex;
    gap: 14px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    align-items: center;
}

.active-proposal-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.placeholder-info h2 {
    font-size: 1.15rem;
    color: var(--text-secondary);
}

.placeholder-info p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Canvas & Viewport Area for Zoom/Pan */
.canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
    display: flex;
}

.map-viewport {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    cursor: grab;
}

.map-viewport:active {
    cursor: grabbing;
}

/* Dynamic transformable map content block */
.map-content {
    position: absolute;
    transform-origin: center center;
    display: inline-flex;
    align-items: center;
    justify-content: flex-start;
    padding: 400px;
    box-sizing: content-box;
    min-width: max-content;
    min-height: max-content;
}

.svg-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    overflow: visible; /* Prevent any clipping of SVG lines */
}

.mindmap-tree {
    position: relative;
    z-index: 2;
}

/* Flexbox Tree Layout CSS */
.tree-branch {
    display: flex;
    align-items: center;
    position: relative;
}

.tree-children {
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin-left: 80px; /* Space between parent and children */
    gap: 30px; /* Space between sibling children */
    position: relative;
}

/* Mindmap Node styling */
.mindmap-node {
    width: 250px;
    min-width: 180px;
    max-width: 600px;
    min-height: 120px;
    background-color: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 16px;
    box-shadow: var(--shadow-md);
    transition: border-color 0.25s, box-shadow 0.25s, background-color 0.25s;
    position: absolute;
    backdrop-filter: blur(12px);
    cursor: grab;
    z-index: 3;
    user-select: none;
    resize: both; /* Enable browser native resizing */
    overflow: hidden; /* Required for resize handle to render */
}
.mindmap-node:active {
    cursor: grabbing;
}

.mindmap-node:hover {
    box-shadow: var(--shadow-lg), 0 0 15px rgba(255, 255, 255, 0.05);
    background-color: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.2);
}
body.light-mode .mindmap-node:hover {
    border-color: rgba(0, 0, 0, 0.12);
    box-shadow: var(--shadow-lg), 0 0 15px rgba(0, 0, 0, 0.03);
}

/* Status variants for nodes */
.node-root {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(139, 92, 246, 0.15));
    border-color: rgba(59, 130, 246, 0.6);
    width: 280px;
}
body.light-mode .node-root {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(139, 92, 246, 0.08));
    border-color: rgba(59, 130, 246, 0.5);
}
.node-root:hover {
    border-color: rgba(59, 130, 246, 0.9);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}
body.light-mode .node-root:hover {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.15);
}

.node-pending { border-left: 5px solid var(--color-neutral); }
.node-in-progress { border-left: 5px solid var(--color-primary); }
.node-processed { border-left: 5px solid var(--color-processed); }
.node-supplementing { border-left: 5px solid var(--color-supplementing); }
.node-completed { border-left: 5px solid var(--color-success); }
.node-rejected { border-left: 5px solid var(--color-supplementing); }

/* Node Header & Actions */
.node-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
}

.node-label {
    font-weight: 600;
    font-size: 0.95rem;
    line-height: 1.4;
    word-break: break-word;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Node Drag Grip Styling */
.node-grip {
    color: var(--text-muted);
    cursor: grab;
    margin-right: 6px;
    font-size: 0.85rem;
    transition: var(--transition-smooth);
}
.mindmap-node:hover .node-grip {
    color: var(--text-secondary);
}
.mindmap-node:active .node-grip {
    cursor: grabbing;
}

.node-actions {
    display: flex;
    gap: 4px;
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
    margin-left: 8px;
}

.mindmap-node:hover .node-actions {
    opacity: 1;
}

.node-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.8rem;
    padding: 3px 5px;
    border-radius: 4px;
    transition: var(--transition-smooth);
}

.node-btn:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.1);
}
body.light-mode .node-btn:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.node-btn-add:hover { color: var(--color-success); }
.node-btn-delete:hover { color: var(--color-danger); }

/* Node body contents */
.node-meta-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 6px;
    margin-bottom: 8px;
    gap: 8px;
    flex-wrap: wrap;
}

.node-user-meta {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* In-place Editable Textarea styling (Comment/Opinion font made larger) */
.node-comment-input {
    width: 100%;
    min-height: 52px;
    max-height: none; /* Expand infinitely */
    font-size: 0.9rem; /* Increased size for readability! */
    font-weight: 500;
    font-style: italic;
    background-color: rgba(0, 0, 0, 0.2);
    border: 1px solid transparent;
    border-radius: 8px;
    padding: 6px 10px;
    color: var(--text-primary);
    font-family: var(--font-main);
    resize: none; /* Disable manual resize handle */
    margin-top: 8px;
    transition: var(--transition-smooth);
    line-height: 1.4;
    overflow: hidden; /* Hide scrollbars as it grows */
}
body.light-mode .node-comment-input {
    background-color: rgba(0, 0, 0, 0.04);
}
.node-comment-input:focus {
    border-color: var(--color-primary);
    background-color: rgba(0, 0, 0, 0.35);
    outline: none;
}
body.light-mode .node-comment-input:focus {
    background-color: #ffffff;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(29, 78, 216, 0.1);
}

.node-link {
    margin-top: 8px;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.node-link a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: inline-block;
    max-width: 180px;
}

.node-link a:hover {
    text-decoration: underline;
}

/* Floating Zoom Controls Panel */
.zoom-controls {
    position: absolute;
    bottom: 24px;
    right: 24px;
    display: flex;
    align-items: center;
    gap: 6px;
    background-color: var(--bg-zoom-ctrl);
    border: 1px solid var(--border-color);
    padding: 6px 10px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-lg);
    z-index: 10;
    transition: background-color 0.3s ease;
}

.zoom-btn {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 32px;
    height: 32px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}
body.light-mode .zoom-btn {
    background-color: rgba(0, 0, 0, 0.02);
}

.zoom-btn:hover {
    background-color: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.25);
}
body.light-mode .zoom-btn:hover {
    background-color: rgba(0, 0, 0, 0.06);
    border-color: rgba(0, 0, 0, 0.1);
}

.zoom-badge {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    min-width: 45px;
    text-align: center;
    margin-left: 4px;
}

/* Help text overlay */
.nav-help {
    position: absolute;
    bottom: 24px;
    left: 24px;
    background-color: var(--bg-nav-help);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    backdrop-filter: blur(8px);
    pointer-events: none;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background-color 0.3s ease;
}

/* Empty State / Centered information */
.empty-state {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px;
}

.empty-icon {
    font-size: 4rem;
    color: var(--text-muted);
    margin-bottom: 20px;
    opacity: 0.5;
    animation: float 4s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.empty-state h2 {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 0.9rem;
    color: var(--text-muted);
    max-width: 400px;
}

/* Buttons */
.btn {
    padding: 8px 16px;
    border-radius: 10px;
    font-family: var(--font-main);
    font-weight: 600;
    font-size: 0.85rem;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition-smooth);
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
}
.btn-primary:hover {
    background-color: #2563eb;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}
body.light-mode .btn-primary:hover {
    background-color: #1d4ed8;
    box-shadow: 0 4px 12px rgba(29, 78, 216, 0.2);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}
body.light-mode .btn-secondary {
    background-color: rgba(0, 0, 0, 0.05);
}
.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.15);
}
body.light-mode .btn-secondary:hover {
    background-color: rgba(0, 0, 0, 0.08);
}

.btn-danger {
    background-color: rgba(239, 68, 68, 0.15);
    color: #f87171;
}
body.light-mode .btn-danger {
    background-color: rgba(220, 38, 38, 0.08);
    color: var(--color-danger);
}
.btn-danger:hover {
    background-color: var(--color-danger);
    color: white;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(8px);
    z-index: 100;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background-color: var(--bg-modal);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    padding: 28px;
    box-shadow: var(--shadow-lg);
    animation: modal-enter 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    transition: background-color 0.3s ease;
}

@keyframes modal-enter {
    from { transform: scale(0.9) translateY(20px); opacity: 0; }
    to { transform: scale(1) translateY(0); opacity: 1; }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
}

.close-btn {
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.close-btn:hover {
    color: var(--text-primary);
}

/* Forms in Modals */
.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-row {
    display: flex;
    gap: 16px;
}

.form-row .form-group {
    flex: 1;
}

label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.required {
    color: var(--color-danger);
}

input[type="text"],
input[type="url"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 10px 14px;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition-smooth);
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

textarea {
    resize: vertical;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 28px;
}

/* SVG Connection Lines - Solid lines, no dasharray, drop shadows */
.connection-line {
    fill: none;
    stroke-width: 3px;
    stroke-linecap: round;
    transition: stroke-width 0.25s, stroke 0.25s;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.25));
}
body.light-mode .connection-line {
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

.line-pending {
    stroke: var(--color-neutral);
    opacity: 0.6;
}

.line-in-progress {
    stroke: var(--color-primary);
    opacity: 0.9;
}

.line-processed {
    stroke: var(--color-processed);
    opacity: 0.9;
}

.line-supplementing {
    stroke: var(--color-supplementing);
    opacity: 0.9;
}

.line-completed {
    stroke: var(--color-success);
    opacity: 0.9;
}

.line-rejected {
    stroke: var(--color-supplementing);
    opacity: 0.9;
}