/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--surface-color);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.show .modal {
    transform: scale(1) translateY(0);
}

/* Modal Header */
.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 2rem 2rem 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
}

.modal-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
    transform: scale(1.05);
}

/* Modal Body */
.modal-body {
    padding: 2rem;
    overflow-y: auto;
    max-height: calc(90vh - 160px);
}

/* Upload Form */
.upload-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input[type="text"],
.form-group input[type="number"] {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
    background: var(--surface-color);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

/* File Input Styling */
.form-group input[type="file"] {
    background: var(--bg-secondary);
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.form-group input[type="file"]:hover {
    border-color: var(--primary-color);
    background: rgba(var(--primary-rgb), 0.05);
}

.form-group input[type="file"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

/* Custom File Input */
.file-input-wrapper {
    position: relative;
    display: inline-block;
    width: 100%;
}

.file-input-custom {
    background: var(--bg-secondary);
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.file-input-custom:hover {
    border-color: var(--primary-color);
    background: rgba(var(--primary-rgb), 0.05);
}

.file-input-custom svg {
    color: var(--text-muted);
    transition: color 0.3s ease;
}

.file-input-custom:hover svg {
    color: var(--primary-color);
}

.file-input-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.file-input-subtext {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.file-selected {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: rgba(var(--primary-rgb), 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 6px;
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.file-selected svg {
    flex-shrink: 0;
}

.file-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Form Row */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    margin-top: 1rem;
}

.btn-primary,
.btn-secondary {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(var(--primary-rgb), 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

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

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

/* Loading State */
.btn-loading {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    margin: auto;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Progress Bar in Modal */
.upload-progress {
    margin-top: 1rem;
}

.progress-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.progress-container {
    width: 100%;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 4px;
    width: 0%;
    transition: width 0.3s ease;
}

/* Error Messages */
.form-error {
    color: #ef4444;
    font-size: 0.8rem;
    margin-top: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.form-error svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.input-error {
    border-color: #ef4444 !important;
}

.input-error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1) !important;
}

/* Success Messages */
.form-success {
    color: #22c55e;
    font-size: 0.8rem;
    margin-top: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Drag and Drop States */
.file-drop-active {
    border-color: var(--primary-color) !important;
    background: rgba(var(--primary-rgb), 0.1) !important;
}

.file-drop-active .file-input-text {
    color: var(--primary-color);
}

/* Modal Variations */
.modal-small {
    max-width: 400px;
}

.modal-large {
    max-width: 800px;
}

.modal-fullscreen {
    width: 95%;
    height: 95%;
    max-width: none;
    max-height: none;
}

/* Confirmation Modal */
.confirmation-modal .modal-body {
    text-align: center;
    padding: 2rem;
}

.confirmation-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem auto;
    color: var(--accent-color);
}

.confirmation-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
}

.confirmation-message {
    color: var(--text-secondary);
    margin: 0 0 2rem 0;
    line-height: 1.5;
}

.confirmation-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Settings Modal */
.settings-section {
    margin-bottom: 2rem;
}

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

.settings-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 1rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.settings-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.settings-label {
    flex: 1;
}

.settings-label h4 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0 0 0.25rem 0;
}

.settings-label p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

.settings-control {
    flex-shrink: 0;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    width: 48px;
    height: 24px;
    background: var(--bg-secondary);
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.3s ease;
    border: 1px solid var(--border-color);
}

.toggle-switch.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: white;
    border-radius: 50%;
    transition: transform 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch.active::after {
    transform: translateX(24px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .modal {
        width: 95%;
        margin: 1rem;
    }
    
    .modal-header {
        padding: 1.5rem 1.5rem 1rem 1.5rem;
    }
    
    .modal-header h3 {
        font-size: 1.25rem;
    }
    
    .upload-form {
        padding: 1.5rem;
        gap: 1rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .form-actions {
        flex-direction: column-reverse;
        gap: 0.75rem;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .file-input-custom {
        padding: 1.5rem;
    }
}