/**
 * Maillog Analyzer - Modern Dark Theme
 * Inspired by Grafana and modern SaaS dashboards
 */

/* ==================== CSS Variables ==================== */
:root {
    --bg-primary: #0f1419;
    --bg-secondary: #1a1f26;
    --bg-tertiary: #262c35;
    --bg-hover: #2d3441;
    
    --text-primary: #e8eaed;
    --text-secondary: #9ba1a9;
    --text-tertiary: #6c727a;
    
    --accent-primary: #3b82f6;
    --accent-secondary: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    
    --border-color: #2d3441;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    --transition: all 0.2s ease;
}

/* ==================== Reset & Base ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ==================== App Container ==================== */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ==================== Header ==================== */
.app-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1600px;
    margin: 0 auto;
}

.app-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-info {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.domain-badge {
    background: var(--bg-tertiary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--accent-primary);
    border: 1px solid var(--border-color);
}

/* ==================== Main Layout ==================== */
.app-main {
    display: flex;
    flex: 1;
    max-width: 1600px;
    width: 100%;
    margin: 0 auto;
    gap: 1.5rem;
    padding: 1.5rem;
}

/* ==================== Sidebar ==================== */
.sidebar {
    width: 300px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    height: fit-content;
    position: sticky;
    top: 100px;
    box-shadow: var(--shadow);
}

.sidebar-section {
    margin-bottom: 2rem;
}

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

.sidebar-section h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.file-list {
    max-height: 400px;
    overflow-y: auto;
    margin-bottom: 1rem;
}

.file-item {
    background: var(--bg-tertiary);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

.file-item.selected {
    border-color: var(--accent-primary);
    background: var(--bg-hover);
}

.file-item input[type="checkbox"] {
    margin-right: 0.5rem;
}

.file-name {
    font-weight: 500;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 0.25rem;
}

.file-meta {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.db-info {
    background: var(--bg-tertiary);
    padding: 1rem;
    border-radius: var(--radius-sm);
}

.db-info-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.db-info-item:last-child {
    border-bottom: none;
}

.db-info-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.db-info-value {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.85rem;
}

/* ==================== Dashboard Content ==================== */
.dashboard-content {
    flex: 1;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

/* ==================== Tabs ==================== */
.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}

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

.tab-btn.active {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
}

.tab-content {
    display: none;
}

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

/* ==================== KPI Cards ==================== */
.kpi-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.kpi-card {
    background: var(--bg-tertiary);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.kpi-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.kpi-icon {
    font-size: 2rem;
    opacity: 0.8;
}

.kpi-content {
    flex: 1;
}

.kpi-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.kpi-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* ==================== Charts ==================== */
.chart-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.chart-container {
    background: var(--bg-tertiary);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    flex: 1;
    border: 1px solid var(--border-color);
}

.chart-container h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.chart-half {
    flex: 0 0 calc(50% - 0.5rem);
}

.chart-controls {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.chart-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
    transition: var(--transition);
}

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

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

/* ==================== Messages Tab ==================== */
.message-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.search-input {
    flex: 1;
    min-width: 250px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.filter-select {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    cursor: pointer;
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* ==================== Table ==================== */
.table-container {
    overflow-x: auto;
    margin-bottom: 1rem;
}

.messages-table {
    width: 100%;
    border-collapse: collapse;
}

.messages-table thead {
    background: var(--bg-tertiary);
    position: sticky;
    top: 0;
}

.messages-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border-color);
}

.messages-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.messages-table tbody tr {
    transition: var(--transition);
}

.messages-table tbody tr:hover {
    background: var(--bg-tertiary);
}

.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
}

.status-sent {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent-secondary);
}

.status-bounced {
    background: rgba(239, 68, 68, 0.2);
    color: var(--accent-danger);
}

.status-deferred {
    background: rgba(245, 158, 11, 0.2);
    color: var(--accent-warning);
}

.status-rejected {
    background: rgba(239, 68, 68, 0.2);
    color: var(--accent-danger);
}

.text-center {
    text-align: center;
}

/* ==================== Pagination ==================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
}

#page-info {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ==================== Buttons ==================== */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: #2563eb;
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-hover);
}

.btn-danger {
    background: var(--accent-danger);
    color: white;
    width: 100%;
    justify-content: center;
}

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
}

/* ==================== Modal ==================== */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.modal-content h2 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.close {
    float: right;
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-secondary);
    cursor: pointer;
    line-height: 1;
}

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

.settings-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.setting-item {
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.setting-item label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.setting-item strong {
    color: var(--accent-primary);
    font-size: 1.1rem;
}

.setting-hint {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

code {
    background: var(--bg-primary);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    color: var(--accent-primary);
}

/* ==================== Progress Bar ==================== */
.progress-container {
    width: 100%;
    height: 30px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin: 1rem 0;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    width: 0%;
    transition: width 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.85rem;
    font-weight: 600;
}

#processing-status {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ==================== Loading ==================== */
.loading {
    text-align: center;
    color: var(--text-secondary);
    padding: 1rem;
    font-size: 0.9rem;
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--bg-hover);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: #3d4350;
}

/* ==================== Responsive ==================== */
@media (max-width: 1200px) {
    .app-main {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        position: relative;
        top: 0;
    }
    
    .chart-row {
        flex-direction: column;
    }
    
    .chart-half {
        flex: 1;
    }
}

@media (max-width: 768px) {
    .app-header {
        padding: 1rem;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .kpi-cards {
        grid-template-columns: 1fr;
    }
    
    .message-filters {
        flex-direction: column;
    }
    
    .search-input {
        width: 100%;
    }
}