/* Modern CSS for Real Estate Course Slide Generator */

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --info-color: #0dcaf0;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-success: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    --border-radius: 0.5rem;
    --transition: all 0.3s ease;
}

/* Global Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    line-height: 1.6;
}

/* Navigation */
.navbar {
    background: var(--gradient-primary) !important;
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.25rem;
}

/* Cards */
.card {
    border-radius: var(--border-radius);
    transition: var(--transition);
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

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

.card-header {
    border-radius: var(--border-radius) var(--border-radius) 0 0 !important;
    font-weight: 600;
}

/* Form Elements */
.form-control, .form-select {
    border-radius: var(--border-radius);
    border: 2px solid #e9ecef;
    transition: var(--transition);
    padding: 0.75rem 1rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
    transform: translateY(-1px);
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.form-text {
    font-size: 0.875rem;
    color: var(--secondary-color);
}

/* Buttons */
.btn {
    border-radius: var(--border-radius);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    box-shadow: var(--shadow);
}

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

.btn-success {
    background: var(--gradient-success);
    box-shadow: var(--shadow);
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Progress Bar */
.progress {
    border-radius: var(--border-radius);
    background-color: rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.progress-bar {
    background: var(--gradient-success);
    transition: width 0.6s ease;
}

.progress-bar-striped {
    background-image: linear-gradient(
        45deg,
        rgba(255, 255, 255, 0.15) 25%,
        transparent 25%,
        transparent 50%,
        rgba(255, 255, 255, 0.15) 50%,
        rgba(255, 255, 255, 0.15) 75%,
        transparent 75%,
        transparent
    );
    background-size: 1rem 1rem;
}

/* Alerts */
.alert {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: var(--shadow-sm);
}

.alert-info {
    background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
    color: #0c5460;
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    color: #721c24;
}

/* Status Cards */
.border.rounded.p-2 {
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.8);
}

.border.rounded.p-2:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow);
}

/* Icons */
.fas, .far {
    transition: var(--transition);
}

.btn:hover .fas,
.btn:hover .far {
    transform: scale(1.1);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.pulse {
    animation: pulse 2s infinite;
}

/* Loading States */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
    
    .display-6 {
        font-size: 2rem;
    }
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: var(--border-radius);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: var(--border-radius);
}

::-webkit-scrollbar-thumb:hover {
    background: #0a58ca;
}

/* Task History */
.task-item {
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.task-item:hover {
    background-color: rgba(13, 110, 253, 0.05);
    transform: translateX(5px);
}

.task-status {
    font-size: 0.875rem;
    font-weight: 600;
}

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

.status-running {
    color: var(--info-color);
}

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

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

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

/* Modal */
.modal-content {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

/* Utility Classes */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-custom {
    box-shadow: var(--shadow);
}

.border-gradient {
    border: 2px solid;
    border-image: var(--gradient-primary) 1;
}

/* Section-Based Generation Styles */
.sections-list {
    border: 1px solid #e9ecef;
    border-radius: var(--border-radius);
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.5);
}

.section-item {
    display: flex;
    align-items: center;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    background: white;
    border-radius: var(--border-radius);
    border: 1px solid #e9ecef;
    transition: var(--transition);
}

.section-item:hover {
    border-color: var(--info-color);
    box-shadow: var(--shadow-sm);
}

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

.section-info {
    flex: 1;
    min-width: 0;
}

.section-id {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    margin-right: 0.5rem;
}

.section-title {
    font-weight: 600;
    color: var(--dark-color);
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.section-topic {
    font-size: 0.8rem;
    color: var(--secondary-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.section-slides-input {
    width: 75px;
    text-align: center;
    font-weight: 600;
    font-size: 1.1rem;
    flex-shrink: 0;
    padding: 0.5rem;
}

.section-topic-badge {
    display: inline-block;
    padding: 0.2rem 0.4rem;
    background: rgba(13, 110, 253, 0.1);
    color: var(--primary-color);
    border-radius: 0.25rem;
    font-size: 0.7rem;
    margin-left: 0.5rem;
}

/* Section header row with preview button */
.section-header-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.25rem;
}

/* Section preview button */
.section-preview-btn {
    padding: 0.2rem 0.4rem;
    font-size: 0.7rem;
    margin-left: 0.5rem;
    opacity: 0.7;
    transition: var(--transition);
}

.section-item:hover .section-preview-btn {
    opacity: 1;
}

.section-preview-btn:hover {
    transform: scale(1.1);
    opacity: 1;
}

/* Section preview modal styles */
.section-preview-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-content-box {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: var(--border-radius);
    padding: 1rem;
    max-height: 400px;
    overflow-y: auto;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.section-content-box br {
    display: block;
    margin: 0.25rem 0;
}

#sectionPreviewModal .modal-header {
    background: var(--gradient-primary);
}

#sectionPreviewModal .badge {
    font-weight: 500;
}

#sectionPreviewModal hr {
    margin: 1rem 0;
    opacity: 0.2;
}

/* Run type toggle styling */
.btn-group .btn-check:checked + .btn-outline-primary {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
}

.btn-group .btn-outline-primary {
    border-width: 2px;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --light-color: #343a40;
        --dark-color: #f8f9fa;
    }
    
    body {
        background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
        color: var(--dark-color);
    }
    
    .card {
        background: rgba(52, 58, 64, 0.95);
        color: var(--dark-color);
    }
    
    .form-control, .form-select {
        background-color: rgba(52, 58, 64, 0.8);
        border-color: #495057;
        color: var(--dark-color);
    }
    
    .form-control:focus, .form-select:focus {
        background-color: rgba(52, 58, 64, 0.9);
        border-color: var(--primary-color);
    }
}