/* POS Hata Kodları — Page-Specific Styles */

/* Hero Section */
.error-hero {
    background: linear-gradient(180deg, #fff 0%, #F8F9FA 100%);
    padding: 3.5rem 0 2.5rem;
    text-align: center;
}
.error-hero h1 {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 2.25rem;
    line-height: 1.2;
    margin-bottom: 0.75rem;
}
.error-hero .lead {
    color: var(--text-muted);
    font-size: 1.125rem;
    max-width: 650px;
    margin: 0 auto 2rem;
}

/* Search Box */
.error-search-box {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}
.error-search-box input {
    width: 100%;
    padding: 1rem 1.25rem 1rem 3rem;
    font-size: 1.0625rem;
    border: 2px solid var(--border-color);
    border-radius: 0.75rem;
    background: #fff;
    color: var(--text-dark);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    outline: none;
}
.error-search-box input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 74, 153, 0.12);
}
.error-search-box .search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1.25rem;
    pointer-events: none;
}

/* Category Filters */
.category-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    padding: 1.5rem 0;
}
.category-filters .filter-btn {
    display: inline-block;
    padding: 0.5rem 1.125rem;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid var(--border-color);
    border-radius: 2rem;
    background: #fff;
    color: var(--text-dark);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}
.category-filters .filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(0, 74, 153, 0.04);
}
.category-filters .filter-btn.active {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

/* Results Counter */
.results-counter {
    text-align: center;
    font-size: 0.9375rem;
    color: var(--text-muted);
    padding: 0.5rem 0 1.5rem;
    font-weight: 500;
}
.results-counter strong {
    color: var(--primary-color);
}

/* Error Code Cards Grid */
.error-cards-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    padding-bottom: 2rem;
}

/* Single Error Code Card */
.error-code-card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 0.875rem;
    padding: 1.5rem;
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}
.error-code-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.07);
    border-color: var(--primary-color);
}
.error-code-card.highlight {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 74, 153, 0.15), 0 4px 16px rgba(0, 0, 0, 0.07);
}

/* Error Code Badge */
.error-code-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 3rem;
    padding: 0.25rem 0.75rem;
    font-size: 0.9375rem;
    font-weight: 700;
    color: #fff;
    background: var(--error-color);
    border-radius: 0.375rem;
    margin-bottom: 0.75rem;
    font-family: 'Courier New', monospace;
    letter-spacing: 0.05em;
}
.error-code-card[data-category="3d-secure"] .error-code-badge {
    background: var(--primary-color);
}

/* Card Title */
.error-code-card h3 {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

/* Card Description */
.error-code-card .error-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    line-height: 1.5;
}

/* Causes Block (yellow/amber) */
.error-causes {
    background: #FFF8E1;
    border-left: 3px solid var(--warning-color);
    border-radius: 0 0.5rem 0.5rem 0;
    padding: 0.75rem 1rem;
    margin-bottom: 0.75rem;
}
.error-causes .block-title {
    font-size: 0.8125rem;
    font-weight: 700;
    color: #B8860B;
    margin-bottom: 0.375rem;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}
.error-causes ul {
    margin: 0;
    padding-left: 1.25rem;
    font-size: 0.85rem;
    color: #5D4E0E;
    line-height: 1.6;
}

/* Solutions Block (green) */
.error-solutions {
    background: #E8F5E9;
    border-left: 3px solid var(--success-color);
    border-radius: 0 0.5rem 0.5rem 0;
    padding: 0.75rem 1rem;
}
.error-solutions .block-title {
    font-size: 0.8125rem;
    font-weight: 700;
    color: #1B7A2D;
    margin-bottom: 0.375rem;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}
.error-solutions ul {
    margin: 0;
    padding-left: 1.25rem;
    font-size: 0.85rem;
    color: #1B5E20;
    line-height: 1.6;
}

/* Empty State */
.empty-results {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
    display: none;
}
.empty-results i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--border-color);
}
.empty-results p {
    font-size: 1.0625rem;
    margin-bottom: 0.5rem;
}
.empty-results .hint {
    font-size: 0.875rem;
}

/* Education Section */
.education-section {
    background: var(--bg-light);
    padding: 4rem 0;
}
.education-section h2 {
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.75rem;
}
.education-section .lead {
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-size: 1.0625rem;
}
.education-card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 0.875rem;
    padding: 2rem 1.5rem;
    height: 100%;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.education-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}
.education-card .card-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 0.625rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}
.education-card .card-icon.blue {
    background: rgba(0, 74, 153, 0.1);
    color: var(--primary-color);
}
.education-card .card-icon.red {
    background: rgba(231, 76, 60, 0.1);
    color: var(--error-color);
}
.education-card .card-icon.green {
    background: rgba(46, 204, 113, 0.1);
    color: var(--success-color);
}
.education-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}
.education-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    line-height: 1.6;
}
.education-card .card-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    transition: gap 0.2s ease;
}
.education-card .card-link:hover {
    gap: 0.625rem;
}

/* FAQ Section */
.faq-section {
    padding: 4rem 0;
}
.faq-section h2 {
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-size: 1.75rem;
    text-align: center;
}
.faq-section .accordion-item {
    border: 1px solid var(--border-color);
    border-radius: 0.75rem !important;
    margin-bottom: 0.75rem;
    overflow: hidden;
}
.faq-section .accordion-button {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-dark);
    padding: 1.125rem 1.25rem;
    background: #fff;
}
.faq-section .accordion-button:not(.collapsed) {
    background: var(--bg-light);
    color: var(--primary-color);
    box-shadow: none;
}
.faq-section .accordion-button:focus {
    box-shadow: none;
    border-color: var(--border-color);
}
.faq-section .accordion-body {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.7;
    padding: 0.5rem 1.25rem 1.25rem;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, #003366 100%);
    padding: 4rem 0;
    text-align: center;
    color: #fff;
}
.cta-section h2 {
    font-weight: 700;
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}
.cta-section p {
    font-size: 1.0625rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 1.5rem;
}
.cta-section .btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--cta-color);
    color: #fff;
    font-weight: 600;
    font-size: 1.0625rem;
    padding: 0.875rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    transition: background 0.2s ease, transform 0.2s ease;
}
.cta-section .btn-cta:hover {
    background: var(--cta-hover);
    transform: translateY(-2px);
}

/* Breadcrumb */
.breadcrumb-section {
    background: var(--bg-light);
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}
.breadcrumb-section .breadcrumb {
    margin-bottom: 0;
    font-size: 0.8125rem;
}
.breadcrumb-section .breadcrumb-item a {
    color: var(--primary-color);
    text-decoration: none;
}
.breadcrumb-section .breadcrumb-item.active {
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 991.98px) {
    .error-cards-grid {
        grid-template-columns: 1fr;
    }
    .error-hero h1 {
        font-size: 1.75rem;
    }
}
@media (max-width: 575.98px) {
    .error-hero {
        padding: 2.5rem 0 1.5rem;
    }
    .error-hero h1 {
        font-size: 1.5rem;
    }
    .error-code-card {
        padding: 1.25rem;
    }
    .category-filters .filter-btn {
        padding: 0.375rem 0.875rem;
        font-size: 0.8125rem;
    }
}