:root {
    /* Color Palette - Premium Dark/Neon */
    --bg-dark: #0f1115;
    --bg-panel: #181b21;
    --bg-hover: #23272f;

    --primary: #6366f1;
    /* Indigo */
    --primary-glow: rgba(99, 102, 241, 0.4);
    --secondary: #ec4899;
    /* Pink */

    --text-main: #f3f4f6;
    --text-muted: #9ca3af;

    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    --border: #2d313a;
    --radius: 12px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);

    /* Transitions */
    --trans-fast: 0.2s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    overflow: hidden;
    /* App-like feel */
    height: 100vh;
}

.app-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    height: 100vh;
}

/* Sidebar */
.sidebar {
    background-color: var(--bg-panel);
    border-right: 1px solid var(--border);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--primary);
    font-size: 1.5rem;
}

.logo-area h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
}

.stat-card {
    background: var(--bg-hover);
    padding: 1rem;
    border-radius: var(--radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--border);
    margin-bottom: 0.5rem;
}

.stat-card.highlight {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary);
}

.stat-title {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.stat-value {
    font-weight: 700;
    font-size: 1.2rem;
}

/* Main Content */
.main-content {
    background-color: var(--bg-dark);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.top-bar {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(15, 17, 21, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 10;
}

/* Search */
.search-wrapper {
    position: relative;
    width: 400px;
}

.search-wrapper i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-wrapper input {
    width: 100%;
    padding: 0.8rem 1rem 0.8rem 2.8rem;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 100px;
    color: var(--text-main);
    outline: none;
    transition: var(--trans-fast);
}

.search-wrapper input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-glow);
}

/* Content Area */
.content-area {
    flex: 1;
    overflow: hidden;
    padding: 2rem;
    position: relative;
    display: flex;
    flex-direction: column;
}

/* Drop Zone */
.drop-zone {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    margin: 1rem;
    transition: var(--trans-fast);
}

.drop-zone.drag-over {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

.drop-content {
    text-align: center;
    color: var(--text-muted);
}

.drop-content i {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

/* Buttons */
.btn {
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--trans-fast);
    font-size: 0.9rem;
}

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

.btn-primary:hover {
    background: #4f46e5;
    box-shadow: 0 4px 12px var(--primary-glow);
}

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

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

.btn-sm {
    padding: 0.4rem 0.6rem;
    font-size: 0.8rem;
}

.hidden-input {
    display: none;
}

/* Top Scrollbar Logic - Removed */

/* Table */
.table-container {
    background: var(--bg-panel);
    border-bottom-left-radius: var(--radius);
    border-bottom-right-radius: var(--radius);
    overflow: auto;
    /* Enable BOTH X and Y scrolling */
    border: 1px solid var(--border);
    max-width: 100%;
    flex: 1;
    /* Take remaining space */

    scrollbar-width: thin;
    scrollbar-color: var(--border) var(--bg-dark);
}

/* Hide horizontal scrollbar in Webkit */
.table-container::-webkit-scrollbar {
    width: 8px;
    height: 10px;
    /* Restored Horizontal Scrollbar */
}

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

.table-container::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    white-space: nowrap;
    /* Keep rows single line */
}

.data-table th,
.data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    border-right: 1px solid var(--border);
    /* Add vertical separator */
}

.data-table th {
    background: var(--bg-hover);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    /* Sticky Header */
    position: sticky;
    top: 0;
    z-index: 10;
}

/* Sticky Action Column */
.data-table th:last-child,
.data-table td:last-child {
    position: sticky;
    right: 0;
    background: var(--bg-panel);
    /* Match panel bg to cover scrolling content */
    z-index: 5;
    /* Above normal cells, below header if needed */
    border-left: 1px solid var(--border);
    box-shadow: -2px 0 5px rgba(0, 0, 0, 0.2);
}

.data-table th:last-child {
    z-index: 15;
    /* Header needs to be above row sticky */
}

.data-table tr:hover {
    background-color: var(--bg-hover);
}

/* Status Indicators */
.status-dot {
    height: 10px;
    width: 10px;
    border-radius: 50%;
    display: inline-block;
}

.status-active {
    background-color: var(--success);
    box-shadow: 0 0 8px var(--success);
}

.status-inactive {
    background-color: var(--border);
}

.badge {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

.status-paid {
    color: var(--success);
    background: rgba(16, 185, 129, 0.1);
}

.status-unpaid {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
}

.status-partial {
    color: var(--warning);
    background: rgba(245, 158, 11, 0.1);
}

.status-na {
    color: var(--text-muted);
}

.row-inactive {
    opacity: 0.5;
    background-color: #1a1a1a;
}

/* Modal */
.hidden {
    display: none !important;
}

.modal,
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.modal-content {
    background: var(--bg-panel);
    width: 400px;
    max-width: 90%;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    max-height: 90vh;
}

.modal-content.small-modal {
    width: 500px;
}

.modal-large {
    width: 800px;
    /* Wider for more inputs */
}

/* Style Selector Buttons */
.style-selector {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.style-btn {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: var(--bg-dark);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.85rem;
    transition: var(--trans-fast);
}

.style-btn:hover {
    border-color: var(--primary);
    color: var(--text-main);
}

.style-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    font-weight: 600;
}

/* Preview Box (Textarea) */
.preview-box {
    width: 100%;
    padding: 1rem;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-main);
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    resize: vertical;
    min-height: 120px;
    line-height: 1.5;
}

.preview-box:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-glow);
}

/* Checkbox Group Styling for Export Modal */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.checkbox-group h3 {
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
}

/* Export Modal Sections */
.export-section {
    margin-bottom: 1.25rem;
}

.export-section:last-child {
    margin-bottom: 0;
}

.section-title {
    color: var(--primary);
    font-size: 0.8rem;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.checkbox-stack {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
    /* Scrollable area */
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

/* Form Styles */
.form-section-title {
    color: var(--primary);
    font-size: 0.9rem;
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 1rem;
    margin-top: 1.5rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.5rem;
}

.form-section-title:first-child {
    margin-top: 0;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
}

.span-2 {
    grid-column: span 2;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.7rem;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: white;
    font-size: 0.95rem;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary);
    outline: none;
}

/* Custom Checkbox */
.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.settings-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.checkbox-item {
    padding: 0.5rem;
    border-radius: 4px;
}

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

.custom-checkbox {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 0.95rem;
    padding: 0.75rem 1rem;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    transition: var(--trans-fast);
}

.custom-checkbox:hover {
    border-color: var(--primary);
    background: var(--bg-hover);
}

.custom-checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
    cursor: pointer;
}

.custom-checkbox .checkmark {
    display: none;
    /* Using native checkbox styling */
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 8px;
    height: 10px;
    /* Default for others */
}

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

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

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

/* Filter Dropdown Styling */
.filter-group select {
    width: 100%;
    padding: 0.8rem;
    background-color: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-main);
    font-weight: 500;
    cursor: pointer;
    outline: none;
    transition: var(--trans-fast);
}

.filter-group select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-glow);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .app-container {
        grid-template-columns: 1fr;
    }

    .sidebar {
        display: none;
    }

    .search-wrapper {
        width: 100%;
    }

    .modal-large {
        width: 100%;
        height: 100%;
        max-height: 100%;
        border-radius: 0;
    }

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }
}

/* Inline Edit Input */
.inline-edit-input {
    width: 100%;
    height: 100%;
    background: transparent;
    border: none;
    color: inherit;
    font-family: inherit;
    font-size: inherit;
    font-weight: inherit;
    padding: 0;
    margin: 0;
    outline: 2px solid var(--primary);
    /* Focus indicator */
    border-radius: 4px;
}