/* Material UI CSS Components */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: var(--background, #f8fafc);
    min-height: 100vh;
    color: var(--text-primary, #1e293b);
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

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

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Card Styles */
.card {
    background: var(--surface, #ffffff);
    border-radius: var(--radius-xl, 16px);
    border: 1px solid var(--border-color, #e2e8f0);
    box-shadow: var(--shadow-md, 0 4px 6px -1px rgba(0, 0, 0, 0.1));
    overflow: hidden;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg, 0 10px 15px -3px rgba(0, 0, 0, 0.1));
    border-color: var(--border-hover, #cbd5e1);
}

.card-header {
    padding: 24px 32px;
    background: linear-gradient(to right, rgba(102, 126, 234, 0.03), rgba(118, 75, 162, 0.03));
    border-bottom: 1px solid var(--border-color, #e2e8f0);
    color: var(--text-primary, #1e293b);
}

.card-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text-primary, #1e293b);
    letter-spacing: -0.5px;
}

.card-subtitle {
    font-size: 14px;
    color: var(--text-secondary, #64748b);
    font-weight: 400;
}

.card-body {
    padding: 32px;
}

/* Form Styles */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: #333;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    font-family: 'Roboto', sans-serif;
    transition: all 0.3s ease;
    background: white;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-range {
    width: 100%;
    margin: 8px 0;
}

.range-value {
    display: inline-block;
    margin-left: 8px;
    font-weight: 500;
    color: #667eea;
}

/* File Upload */
.file-upload-area {
    position: relative;
    border: 2px dashed #e0e0e0;
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #fafafa;
}

.file-upload-area:hover {
    border-color: #667eea;
    background: #f5f5f5;
}

.file-upload-area.dragover {
    border-color: #667eea;
    background: #f0f4ff;
    transform: scale(1.02);
}

.file-input {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0;
    cursor: pointer;
}

.upload-content {
    pointer-events: none;
}

.upload-icon {
    font-size: 48px;
    color: #667eea;
    margin-bottom: 16px;
}

.upload-text {
    font-size: 16px;
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
}

.upload-hint {
    font-size: 12px;
    color: #999;
}

/* Tabs */
.tabs-container {
    background: white;
    border-radius: 16px 16px 0 0;
    padding: 0 24px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.tabs-wrapper {
    display: flex;
    gap: 8px;
    border-bottom: 2px solid #e0e0e0;
}

.tab-button {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 24px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #666;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
}

.tab-button:hover {
    color: #667eea;
    background: rgba(102, 126, 234, 0.05);
}

.tab-button.active {
    color: #667eea;
    border-bottom-color: #667eea;
}

.input-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.input-tab {
    padding: 8px 16px;
    border: 2px solid #e0e0e0;
    background: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.input-tab:hover {
    border-color: #667eea;
    color: #667eea;
}

.input-tab.active {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

.input-mode {
    display: none;
}

.input-mode.active {
    display: block;
}

/* Results */
.results-section {
    margin-top: 24px;
}

.result-item {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
    animation: slideIn 0.3s ease;
    border-left: 4px solid #667eea;
}

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

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.result-title {
    font-size: 16px;
    font-weight: 500;
    color: #333;
}

.result-status {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.result-status.success {
    background: #4caf50;
    color: white;
}

.result-status.error {
    background: #f44336;
    color: white;
}

.result-status.processing {
    background: #ff9800;
    color: white;
}

.result-content {
    font-size: 14px;
    line-height: 1.6;
    color: #666;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.result-actions {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}

.result-actions button {
    padding: 6px 12px;
    font-size: 12px;
}

/* Loading */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    text-align: center;
    color: white;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Toast */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
}

.toast {
    background: white;
    border-radius: 8px;
    padding: 16px 20px;
    margin-bottom: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    animation: slideInRight 0.3s ease;
}

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

.toast.success {
    border-left: 4px solid #4caf50;
}

.toast.error {
    border-left: 4px solid #f44336;
}

.toast.info {
    border-left: 4px solid #2196f3;
}

/* Responsive */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .tabs-wrapper {
        flex-wrap: wrap;
    }
    
    .tab-button {
        padding: 12px 16px;
        font-size: 12px;
    }
}