/* ============================================
   VHASS BLOG PAGE - MOBILE-OPTIMIZED STYLES
   Clean, iFixit-inspired design
   ============================================ */

/* ============================================
   FILTER SECTION - MOBILE FIRST
   ============================================ */
.filter-section {
    background-color: #f9fafb;
    padding: 2rem 0;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 70px;
    z-index: 100;
}

.filter-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.filter-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

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

.filter-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.filter-select {
    width: 100%;
    padding: 0.75rem 2.5rem 0.75rem 0.875rem;
    background-color: #ffffff;
    border: 2px solid #e5e7eb;
    border-radius: 6px;
    color: #111827;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    
    /* Custom arrow */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='%23374151' d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 12px;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.filter-select:hover {
    border-color: #0071CE;
}

.filter-select:focus {
    outline: none;
    border-color: #0071CE;
    box-shadow: 0 0 0 3px rgba(0, 113, 206, 0.1);
}

/* ============================================
   SEARCH BOX
   ============================================ */
.search-wrapper {
    position: relative;
    width: 100%;
}

.search-input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    border: 2px solid #e5e7eb;
    border-radius: 6px;
    font-size: 1rem;
    transition: all 0.2s;
}

.search-input:focus {
    outline: none;
    border-color: #0071CE;
    box-shadow: 0 0 0 3px rgba(0, 113, 206, 0.1);
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #9ca3af;
    pointer-events: none;
}

/* ============================================
   RESULTS INFO
   ============================================ */
.results-info {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e5e7eb;
}

.results-text {
    color: #6b7280;
    font-size: 0.875rem;
    text-align: center;
}

.results-text strong {
    color: #111827;
    font-weight: 600;
}

/* ============================================
   BLOG GRID
   ============================================ */
.blog-section {
    padding: 2rem 0 3rem;
}

.blog-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

/* ============================================
   BLOG CARDS
   ============================================ */
.blog-card {
    background-color: #ffffff;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    border-color: #0071CE;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.blog-image {
    width: 100%;
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, #e5e7eb, #f3f4f6);
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.blog-card:hover .blog-image img {
    transform: scale(1.05);
}

.blog-content {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.blog-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    width: fit-content;
}

.blog-badge-hardware {
    background-color: #dbeafe;
    color: #1e40af;
}

.blog-badge-software {
    background-color: #d1fae5;
    color: #065f46;
}

.blog-badge-embedded {
    background-color: #fef3c7;
    color: #92400e;
}

.blog-badge-financial {
    background-color: #f3a4ab;
    color: #a21521;
}

.blog-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: #111827;
    line-height: 1.3;
}

.blog-excerpt {
    color: #4b5563;
    font-size: 0.9375rem;
    line-height: 1.6;
    flex-grow: 1;
}

.blog-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    color: #6b7280;
    font-size: 0.875rem;
    padding-top: 0.5rem;
    border-top: 1px solid #f3f4f6;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.blog-link {
    color: #0071CE;
    font-weight: 600;
    font-size: 0.9375rem;
    transition: color 0.2s;
}

.blog-link:hover {
    color: #005AA3;
}

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
}

.empty-icon {
    margin: 0 auto 1rem;
    color: #d1d5db;
}

.empty-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #374151;
    margin-bottom: 0.5rem;
}

.empty-text {
    color: #6b7280;
    font-size: 0.9375rem;
}

/* ============================================
   ANIMATIONS
   ============================================ */
.blog-card {
    opacity: 1;
    transform: scale(1);
    transition: opacity 0.3s, transform 0.3s;
}

.blog-card.fade-out {
    opacity: 0;
    transform: scale(0.95);
}

.blog-card.fade-in {
    opacity: 1;
    transform: scale(1);
}

/* ============================================
   TABLET (640px and up)
   ============================================ */
@media (min-width: 640px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .filter-row {
        grid-template-columns: repeat(2, minmax(0, 200px));
    }

    .results-text {
        text-align: left;
    }
}

/* ============================================
   DESKTOP (1024px and up)
   ============================================ */
@media (min-width: 1024px) {
    .filter-section {
        padding: 2rem 0;
    }

    .filter-wrapper {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-end;
    }

    .filter-row {
        gap: 1.5rem;
    }

    .search-wrapper {
        max-width: 320px;
    }

    .blog-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }

    .blog-section {
        padding: 3rem 0 4rem;
    }

    .blog-title {
        font-size: 1.25rem;
    }

    .results-info {
        border-top: none;
        margin-top: 1.5rem;
        padding-top: 0;
    }
}

/* ============================================
   LARGE DESKTOP (1280px and up)
   ============================================ */
@media (min-width: 1280px) {
    .blog-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .filter-section,
    .whatsapp-float,
    .footer {
        display: none;
    }

    .blog-card {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}