/* ===================================
   SEO Check Page - Styles
   =================================== */

/* Hero Section */
.hero-section {
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-bottom: 1px solid var(--color-border);
}

.hero-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

.hero-title i {
    font-size: 2.75rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* Input Section */
.input-section {
    padding: var(--spacing-3xl) 0;
}

.seo-check-form {
    max-width: 700px;
    margin: 0 auto;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
}

.form-label i {
    color: var(--color-primary);
}

.input-wrapper {
    display: flex;
    gap: var(--spacing-md);
    align-items: stretch;
}

.form-input {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text);
    transition: var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.submit-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.submit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

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

.form-hint {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin: 0;
}

.form-hint i {
    color: var(--color-primary-light);
}

/* Loading Section */
.loading-section {
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.loading-section[aria-hidden="true"] {
    display: none;
}

.loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.loading-spinner {
    font-size: 3rem;
    color: var(--color-primary);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.loading-text {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin: 0;
}

/* Results Section */
.results-section {
    padding: var(--spacing-3xl) 0;
}

.results-section[aria-hidden="true"] {
    display: none;
}

.results-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.results-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.results-url {
    font-size: 1rem;
    color: var(--color-text-secondary);
    word-break: break-all;
}

/* Score Overview */
.score-overview {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
    padding: var(--spacing-2xl);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
}

.score-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
}

.score-circle {
    position: relative;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: conic-gradient(
        from 0deg,
        var(--color-primary) 0deg,
        var(--color-primary) var(--score-angle, 0deg),
        var(--color-border) var(--score-angle, 0deg),
        var(--color-border) 360deg
    );
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
}

.score-circle::before {
    content: '';
    position: absolute;
    width: calc(100% - 16px);
    height: calc(100% - 16px);
    border-radius: 50%;
    background: var(--color-bg-secondary);
}

.score-value {
    position: relative;
    z-index: 1;
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-text);
}

.score-label {
    position: relative;
    z-index: 1;
    font-size: 1rem;
    color: var(--color-text-secondary);
}

.score-grade {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
}

.grade-icon {
    font-size: 2rem;
}

.grade-text {
    font-size: 1.25rem;
}

.score-chart-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

/* Grade Levels */
.grade-levels {
    margin-bottom: var(--spacing-3xl);
}

.grade-list {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--spacing-md);
    list-style: none;
    padding: 0;
    margin: 0;
}

.grade-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-lg);
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition-fast);
}

.grade-item.active {
    border-color: var(--color-primary);
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.2);
}

.grade-number {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

.grade-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}

.grade-range {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

/* Detailed Results */
.detailed-results {
    margin-bottom: var(--spacing-3xl);
}

.detailed-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-xl);
}

.check-categories {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.check-category {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.category-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
}

.category-score {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-primary);
}

.check-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    list-style: none;
    padding: 0;
    margin: 0;
}

.check-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.check-item.pass {
    border-left: 4px solid #10b981;
}

.check-item.warning {
    border-left: 4px solid #f59e0b;
}

.check-item.fail {
    border-left: 4px solid #ef4444;
}

.check-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.check-item.pass .check-icon {
    color: #10b981;
}

.check-item.warning .check-icon {
    color: #f59e0b;
}

.check-item.fail .check-icon {
    color: #ef4444;
}

.check-content {
    flex: 1;
}

.check-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.check-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin: 0;
}

.check-value {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
    font-family: 'Courier New', monospace;
    word-break: break-all;
}

/* Recommendations */
.recommendations {
    margin-bottom: var(--spacing-3xl);
    padding: var(--spacing-xl);
    background: rgba(99, 102, 241, 0.05);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-lg);
}

.recommendations-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.recommendations-title::before {
    content: '💡';
    font-size: 1.5rem;
}

.recommendations-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    list-style: none;
    padding: 0;
    margin: 0;
}

.recommendation-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--color-bg);
    border-radius: var(--radius-md);
}

.recommendation-item::before {
    content: '→';
    color: var(--color-primary);
    font-weight: 700;
    flex-shrink: 0;
}

.recommendation-text {
    font-size: 0.9375rem;
    color: var(--color-text);
    line-height: 1.6;
    margin: 0;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.action-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.action-btn.secondary {
    color: var(--color-text);
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
}

.action-btn.secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Guide Section */
.guide-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
}

.guide-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.guide-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.guide-item {
    padding: var(--spacing-xl);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.guide-item-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.guide-item-title i {
    color: var(--color-primary);
}

.guide-item-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.guide-item-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    list-style: none;
    padding: 0;
    margin: 0;
}

.guide-item-list li {
    position: relative;
    padding-left: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.guide-item-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-title i {
        font-size: 2.25rem;
    }

    .input-wrapper {
        flex-direction: column;
    }

    .score-overview {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .score-circle {
        width: 150px;
        height: 150px;
    }

    .score-value {
        font-size: 2rem;
    }

    .grade-list {
        grid-template-columns: repeat(3, 1fr);
    }

    .guide-content {
        grid-template-columns: 1fr;
    }

    .action-buttons {
        flex-direction: column;
    }

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

@media (max-width: 480px) {
    .grade-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .score-circle {
        width: 120px;
        height: 120px;
    }

    .score-value {
        font-size: 1.5rem;
    }
}