/* CSS Custom Properties - Design System */
:root {
    /* Color Palette */
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --primary-light: #e3f2fd;
    --success-color: #28a745;
    --success-light: #d4edda;
    --warning-color: #ffc107;
    --warning-light: #fff3cd;
    --danger-color: #dc3545;
    --danger-light: #f8d7da;
    --neutral-color: #6c757d;
    --neutral-light: #f8f9fa;
    --neutral-dark: #343a40;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #e9ecef;
    
    /* Text Colors */
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    --text-white: #ffffff;
    
    /* Spacing Scale (8px base unit) */
    --spacing-xs: 0.25rem;    /* 4px */
    --spacing-sm: 0.5rem;     /* 8px */
    --spacing-md: 1rem;       /* 16px */
    --spacing-lg: 1.5rem;     /* 24px */
    --spacing-xl: 2rem;       /* 32px */
    --spacing-xxl: 3rem;      /* 48px */
    
    /* Typography Scale */
    --font-size-xs: 0.75rem;  /* 12px */
    --font-size-sm: 0.875rem; /* 14px */
    --font-size-md: 1rem;     /* 16px */
    --font-size-lg: 1.125rem; /* 18px */
    --font-size-xl: 1.25rem;  /* 20px */
    --font-size-xxl: 1.5rem;  /* 24px */
    --font-size-xxxl: 2rem;   /* 32px */
    
    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 6px;
    --border-radius-lg: 8px;
    --border-radius-xl: 12px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Responsive Breakpoints */
    --breakpoint-sm: 576px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 992px;
    --breakpoint-xl: 1200px;
}

/* Reset and Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    min-height: 100vh;
}

/* App Container */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-md);
}

/* Header Section */
.app-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: var(--text-white);
    padding: var(--spacing-lg) var(--spacing-xl);
    text-align: center;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.balance-display {
    position: absolute;
    left: var(--spacing-xl);
    top: 50%;
    transform: translateY(-50%);
}

.balance-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-md);
    background: rgba(255, 255, 255, 0.15);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    backdrop-filter: blur(10px);
}

.balance-label {
    opacity: 0.9;
    font-weight: 500;
}

.balance-amount {
    font-weight: 700;
    font-size: var(--font-size-lg);
    letter-spacing: 0.02em;
}

.balance-amount.balance-error {
    opacity: 0.5;
}

.header-content {
    max-width: 600px;
    margin: 0 auto;
}

.app-title {
    font-size: var(--font-size-xxxl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.app-subtitle {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    font-weight: 300;
}

/* Tab Navigation */
.tab-navigation {
    display: flex;
    background-color: var(--bg-primary);
    border-bottom: 2px solid var(--bg-tertiary);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab-button {
    flex: 1;
    min-width: 160px;
    padding: var(--spacing-md) var(--spacing-lg);
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-md);
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    border-bottom: 3px solid transparent;
}

.tab-button:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.tab-button.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background-color: var(--primary-light);
}

.tab-icon {
    font-size: var(--font-size-lg);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: var(--spacing-xl);
}

/* Tab Content */
.tab-content {
    display: none;
    animation: fadeIn var(--transition-normal);
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Workflow Section */
.workflow-section {
    max-width: 800px;
    margin: 0 auto;
}

.workflow-section h2 {
    font-size: var(--font-size-xxl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.workflow-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: var(--line-height-relaxed);
}

/* File Upload Component */
.file-upload-component {
    background-color: var(--bg-primary);
    border: 2px solid var(--bg-tertiary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.upload-area {
    border: 2px dashed var(--neutral-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xxl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    background-color: var(--neutral-light);
}

.upload-area:hover {
    border-color: var(--primary-color);
    background-color: var(--primary-light);
}

.upload-area.dragover {
    border-color: var(--primary-color);
    background-color: var(--primary-light);
    transform: scale(1.02);
}

.upload-area.small {
    padding: var(--spacing-lg);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.7;
}

.upload-text strong {
    display: block;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.upload-text p {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    pointer-events: none;
}

/* Upload Options */
.upload-options {
    margin: var(--spacing-lg) 0;
}

.checkbox-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    user-select: none;
}

.checkbox-option input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin: 0;
    cursor: pointer;
}

/* Dual File Upload */
.dual-file-upload {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.file-upload-row {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.file-label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-md);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    text-align: center;
    white-space: nowrap;
    min-height: 44px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

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

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

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

.btn-secondary:hover:not(:disabled) {
    background-color: var(--bg-tertiary);
    transform: translateY(-1px);
}

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

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

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

.btn-icon {
    font-size: var(--font-size-lg);
}

/* Upload Actions */
.upload-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-lg);
}

/* Upload Status */
.upload-status {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-md);
    min-height: 20px;
}

.upload-status.success {
    background-color: var(--success-light);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.upload-status.error {
    background-color: var(--danger-light);
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
}

.upload-status.info {
    background-color: var(--primary-light);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.upload-status.warning {
    background-color: var(--warning-light);
    color: var(--warning-color);
    border: 1px solid var(--warning-color);
}

/* Monitor Controls */
.monitor-controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--neutral-light);
    border-radius: var(--border-radius-lg);
}

.job-input-group {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.job-id-input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--bg-tertiary);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-md);
    min-height: 44px;
}

.job-id-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.monitor-actions {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    flex-wrap: wrap;
}

/* Job List */
.job-list-container {
    min-height: 400px;
}

.empty-state {
    text-align: center;
    padding: var(--spacing-xxl);
    color: var(--text-muted);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.empty-state h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.empty-state p {
    font-size: var(--font-size-md);
    line-height: var(--line-height-relaxed);
}

/* Job Card */
.job-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--bg-tertiary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-normal);
}

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

.job-header {
    display: flex;
    justify-content: between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.job-id {
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    background-color: var(--neutral-light);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
}

.job-type {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.job-type.characteristics {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.job-type.descriptions {
    background-color: var(--success-light);
    color: var(--success-color);
}

.job-type.template {
    background-color: var(--warning-light);
    color: var(--warning-color);
}

.job-status-display {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.status-item {
    text-align: center;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-md);
    background-color: var(--neutral-light);
}

.status-label {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
}

.status-value {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.status-item.success .status-value {
    color: var(--success-color);
}

.status-item.danger .status-value {
    color: var(--danger-color);
}

.status-item.warning .status-value {
    color: var(--warning-color);
}

.status-item.info .status-value {
    color: var(--primary-color);
}

.status-item.cancelled .status-value {
    color: #6c757d;
}

.progress-fill.cancelled {
    background: linear-gradient(90deg, #6c757d, #adb5bd);
}

.job-cancelled {
    color: #6c757d;
    font-size: 0.875rem;
    font-style: italic;
    margin-top: 0.25rem;
}

.job-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    flex-wrap: wrap;
}

/* Progress Bar */
.progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--neutral-light);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    margin: var(--spacing-md) 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-hover));
    border-radius: var(--border-radius-sm);
    transition: width var(--transition-normal);
}

/* Job Selection Controls */
.selection-controls {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.job-card-checkbox-container {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.job-card-checkbox {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: var(--spacing-sm);
    cursor: pointer;
    accent-color: var(--primary-color);
}

.job-card-checkbox:hover {
    transform: scale(1.1);
}

.job-card-content {
    flex: 1;
}

.job-card.selected {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px var(--primary-light);
    background-color: var(--primary-light);
}

/* Notifications */
.notification-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    pointer-events: none;
}

.notification {
    min-width: 300px;
    max-width: 400px;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    pointer-events: auto;
    animation: slideIn var(--transition-normal) ease forwards;
}

.notification.success {
    background-color: var(--success-light);
    color: #1e7e34;
    border-left: 4px solid var(--success-color);
}

.notification.error {
    background-color: var(--danger-light);
    color: #a71d2a;
    border-left: 4px solid var(--danger-color);
}

.notification.warning {
    background-color: var(--warning-light);
    color: #856404;
    border-left: 4px solid var(--warning-color);
}

.notification.info {
    background-color: var(--primary-light);
    color: #004085;
    border-left: 4px solid var(--primary-color);
}

.notification-icon {
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.notification-content {
    flex: 1;
}

.notification-title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.notification-message {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.notification-close {
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    cursor: pointer;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.notification-close:hover {
    opacity: 1;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

/* Responsive Design */
@media (max-width: 768px) {
    .app-container {
        margin: 0;
        border-radius: 0;
    }

    .app-header {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .balance-display {
        position: static;
        transform: none;
    }

    .balance-info {
        font-size: var(--font-size-sm);
    }

    .balance-amount {
        font-size: var(--font-size-md);
    }

    .header-actions {
        position: static;
        transform: none;
    }

    .main-content {
        padding: var(--spacing-lg);
    }

    .tab-button {
        min-width: 120px;
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }

    .dual-file-upload {
        grid-template-columns: 1fr;
    }

    .upload-actions {
        flex-direction: column;
    }

    .job-input-group {
        flex-direction: column;
        align-items: stretch;
    }

    .monitor-actions {
        justify-content: center;
    }

    .job-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .job-actions {
        justify-content: center;
        width: 100%;
    }

    .notification-container {
        left: var(--spacing-sm);
        right: var(--spacing-sm);
    }

    .notification {
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .app-title {
        font-size: var(--font-size-xxl);
    }
    
    .app-subtitle {
        font-size: var(--font-size-md);
    }
    
    .workflow-section h2 {
        font-size: var(--font-size-xl);
    }
    
    .upload-area {
        padding: var(--spacing-lg);
    }
    
    .upload-icon {
        font-size: 2rem;
    }
    
    .status-item {
        padding: var(--spacing-xs);
    }
}

/* ===== Authentication Styles ===== */

/* Login Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--bg-primary);
    padding: var(--spacing-xxl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-content h2 {
    margin-top: 0;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    text-align: center;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--bg-tertiary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.error-message {
    color: var(--danger-color);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
    min-height: 20px;
}

.modal-content .btn {
    width: 100%;
    justify-content: center;
}

/* Header Actions */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-actions {
    position: absolute;
    right: var(--spacing-xl);
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-info {
    color: var(--text-white);
    font-weight: 500;
}

.header-actions .btn {
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm) var(--spacing-md);
}

/* Batch Job Container Styles */
.batch-container {
    border: 1px solid var(--primary-light);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-md);
    background-color: #fafdff;
}

.batch-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    background-color: var(--primary-light);
}

.batch-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.batch-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    color: var(--primary-color);
}

.batch-type {
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.batch-progress {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.batch-failed {
    color: var(--danger-color);
    margin-left: var(--spacing-sm);
    font-weight: 500;
}

.batch-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
}

.batch-jobs-list {
    display: none; /* Collapsed by default */
    padding: var(--spacing-md);
    border-top: 1px solid var(--primary-light);
}

.batch-jobs-list.expanded {
    display: block;
}

/* Style for job cards inside a batch */
.batch-job-item {
    margin-bottom: var(--spacing-md);
}
.batch-jobs-list .job-card {
    box-shadow: none;
    border-color: #ddeaf3;
}
.batch-jobs-list .job-card:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
}