/* Main Container */
.seokdc-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

/* Card Layout */
.seokdc-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    padding: 30px;
    margin-bottom: 30px;
    transition: all 0.3s ease;
}

.seokdc-card:hover {
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.12);
}

/* Input Mode Tabs */
.seokdc-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid #e5e7eb;
    padding-bottom: 10px;
}

.seokdc-tab {
    background: #f8fafc;
    border: 2px solid transparent;
    border-radius: 8px;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 500;
    color: #64748b;
    cursor: pointer;
    transition: all 0.2s;
}

.seokdc-tab:hover {
    background: #f1f5f9;
    color: #475569;
}

.seokdc-tab.active {
    background: var(--seokdc-primary, #3b82f6);
    color: white;
    border-color: var(--seokdc-primary, #3b82f6);
}

/* Input Areas */
.seokdc-input-container {
    margin-bottom: 25px;
}

.seokdc-textarea {
    width: 100%;
    min-height: 200px;
    padding: 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 15px;
    line-height: 1.6;
    resize: vertical;
    transition: border-color 0.2s;
}

.seokdc-textarea:focus {
    outline: none;
    border-color: var(--seokdc-primary, #3b82f6);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.seokdc-url-input {
    width: 100%;
    padding: 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 15px;
    margin-bottom: 15px;
}

.seokdc-info-text {
    color: #64748b;
    font-size: 14px;
    margin: 5px 0 15px;
}

/* Options */
.seokdc-options {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
    padding: 15px;
    background: #f8fafc;
    border-radius: 8px;
}

.seokdc-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.seokdc-checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--seokdc-primary, #3b82f6);
}

/* Action Buttons */
.seokdc-actions {
    display: flex;
    gap: 15px;
    margin: 30px 0;
}

.seokdc-btn {
    padding: 14px 28px;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.seokdc-btn-primary {
    background: var(--seokdc-primary, #3b82f6);
    color: white;
}

.seokdc-btn-primary:hover {
    background: #2563eb;
    transform: translateY(-1px);
}

.seokdc-btn-secondary {
    background: #f1f5f9;
    color: #475569;
}

.seokdc-btn-secondary:hover {
    background: #e2e8f0;
}

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

/* Results Tabs */
.seokdc-results-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.seokdc-results-tab {
    background: #f8fafc;
    border: 2px solid transparent;
    border-radius: 8px;
    padding: 10px 20px;
    font-size: 14px;
    color: #64748b;
    cursor: pointer;
}

.seokdc-results-tab.active {
    background: var(--seokdc-primary, #3b82f6);
    color: white;
}

/* Results Table */
.seokdc-results-container {
    overflow-x: auto;
    margin-bottom: 30px;
}

.seokdc-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.seokdc-table th {
    background: #f8fafc;
    padding: 15px;
    text-align: left;
    font-weight: 600;
    color: #475569;
    border-bottom: 2px solid #e5e7eb;
    cursor: pointer;
    user-select: none;
}

.seokdc-table th:hover {
    background: #f1f5f9;
}

.seokdc-table th.sorted {
    color: var(--seokdc-primary, #3b82f6);
}

.seokdc-table td {
    padding: 15px;
    border-bottom: 1px solid #e5e7eb;
}

.seokdc-table tr:hover {
    background: #f8fafc;
}

/* Progress Bar */
.seokdc-progress {
    background: #e5e7eb;
    height: 6px;
    border-radius: 3px;
    overflow: hidden;
    margin-top: 5px;
}

.seokdc-progress-bar {
    height: 100%;
    background: var(--seokdc-primary, #3b82f6);
    width: 0%;
    transition: width 0.3s;
}

/* SEO Guidance */
.seokdc-guidance {
    margin-top: 40px;
    padding-top: 25px;
    border-top: 2px solid #e5e7eb;
}

.seokdc-guidance h3 {
    color: #1e293b;
    margin-bottom: 15px;
}

.seokdc-tip {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 15px;
    font-size: 14px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.seokdc-tip.info {
    background: #dbeafe;
    color: #1e40af;
}

.seokdc-tip.warning {
    background: #fef3c7;
    color: #92400e;
}

.seokdc-tip.success {
    background: #d1fae5;
    color: #065f46;
}

/* Loading State */
.seokdc-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 50px;
    text-align: center;
}

.seokdc-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #e5e7eb;
    border-top-color: var(--seokdc-primary, #3b82f6);
    border-radius: 50%;
    animation: seokdc-spin 1s linear infinite;
    margin-bottom: 15px;
}

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

/* Empty State */
.seokdc-empty {
    text-align: center;
    padding: 50px;
    color: #64748b;
}

/* Pagination */
.seokdc-pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.seokdc-page-btn {
    padding: 8px 16px;
    border: 1px solid #e5e7eb;
    background: white;
    border-radius: 6px;
    cursor: pointer;
}

.seokdc-page-btn.active {
    background: var(--seokdc-primary, #3b82f6);
    color: white;
    border-color: var(--seokdc-primary, #3b82f6);
}

/* Responsive */
@media (max-width: 768px) {
    .seokdc-container {
        padding: 15px;
    }
    
    .seokdc-card {
        padding: 20px;
    }
    
    .seokdc-tabs {
        flex-direction: column;
    }
    
    .seokdc-actions {
        flex-direction: column;
    }
    
    .seokdc-btn {
        width: 100%;
        justify-content: center;
    }
}

/* Density Indicator */
.density-low {
    color: #059669;
    font-weight: 500;
}

.density-good {
    color: #3b82f6;
    font-weight: 600;
}

.density-high {
    color: #dc2626;
    font-weight: 600;
}

/* Word Count Badge */
.seokdc-wordcount {
    display: inline-block;
    background: #dbeafe;
    color: #1e40af;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 14px;
    margin: 10px 0;
}