/**
 * DVL Tools Catalog - Frontend Styles
 * Modern Arabic-friendly design for architectural tools
 */

/* ========================================
   CSS Variables
   ======================================== */
:root {
    --dvl-primary: #4F46E5;
    --dvl-primary-dark: #4338CA;
    --dvl-text: #22212C;
    --dvl-text-light: #6B7280;
    --dvl-bg: #F9FAFB;
    --dvl-card-bg: #FFFFFF;
    --dvl-border: #E5E7EB;
    --dvl-radius: 24px;
    --dvl-radius-sm: 14px;
    --dvl-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --dvl-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --dvl-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --dvl-font-ar: 'Tajawal', 'Segoe UI', Tahoma, sans-serif;
}

/* ========================================
   Catalog Container
   ======================================== */
.dvl-tools-catalog {
    font-family: var(--dvl-font-ar);
    direction: rtl;
    padding: 20px 0;
    max-width: 1400px;
    margin: 0 auto;
}

/* ========================================
   Filters
   ======================================== */
.dvl-tools-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
    justify-content: center;
}

.dvl-filter-btn {
    font-family: var(--dvl-font-ar);
    padding: 12px 28px;
    border: 2px solid var(--dvl-border);
    background: var(--dvl-card-bg);
    border-radius: 50px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    color: var(--dvl-text);
    transition: var(--dvl-transition);
    position: relative;
    overflow: hidden;
}

.dvl-filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--dvl-primary);
    transform: translateY(100%);
    transition: var(--dvl-transition);
    z-index: 0;
}

.dvl-filter-btn span,
.dvl-filter-btn {
    position: relative;
    z-index: 1;
}

.dvl-filter-btn:hover {
    border-color: var(--dvl-primary);
    transform: translateY(-2px);
}

.dvl-filter-btn.active {
    background: var(--dvl-primary);
    border-color: var(--dvl-primary);
    color: white;
}

.dvl-filter-btn.active::before {
    transform: translateY(0);
}

/* ========================================
   Tools Grid
   ======================================== */
.dvl-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    padding: 10px;
}

.dvl-tools-catalog[data-columns="2"] .dvl-tools-grid {
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
}

.dvl-tools-catalog[data-columns="4"] .dvl-tools-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

/* ========================================
   Tool Card
   ======================================== */
.dvl-tool-card {
    position: relative;
    transition: var(--dvl-transition);
}

.dvl-tool-card.hidden {
    display: none;
}

.dvl-tool-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.dvl-tool-card-inner {
    position: relative;
    width: 100%;
    height: 480px;
}

.dvl-tool-card-bg {
    position: absolute;
    width: 100%;
    height: 85%;
    bottom: 0;
    left: 0;
    background: var(--dvl-bg);
    border-radius: var(--dvl-radius);
    border: 1px solid var(--dvl-border);
    transition: var(--dvl-transition);
}

.dvl-tool-card-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--dvl-card-bg);
    border-radius: var(--dvl-radius);
    border: 1px solid var(--dvl-border);
    overflow: hidden;
    transition: var(--dvl-transition);
    display: flex;
    flex-direction: column;
}

.dvl-tool-card:hover .dvl-tool-card-content {
    transform: translateY(-8px);
    box-shadow: var(--dvl-shadow-lg);
}

.dvl-tool-card:hover .dvl-tool-card-bg {
    transform: translateY(4px);
}

/* ========================================
   Card Image Area
   ======================================== */
.dvl-tool-card-image {
    height: 300px;
    margin: 16px;
    border-radius: var(--dvl-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.dvl-tool-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--dvl-transition);
}

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

.dvl-tool-card-icon {
    color: rgba(255, 255, 255, 0.9);
    transition: var(--dvl-transition);
}

.dvl-tool-card:hover .dvl-tool-card-icon {
    transform: scale(1.1);
}

/* ========================================
   Card Info Area
   ======================================== */
.dvl-tool-card-info {
    padding: 0 24px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.dvl-tool-card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--dvl-text);
    margin: 0 0 8px;
    line-height: 1.4;
}

.dvl-tool-card-category {
    font-size: 14px;
    color: var(--dvl-text-light);
    margin-bottom: 12px;
}

.dvl-tool-card-desc {
    font-size: 13px;
    color: var(--dvl-text-light);
    margin: 0;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========================================
   No Tools Message
   ======================================== */
.dvl-no-tools {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--dvl-text-light);
    font-size: 18px;
}

/* ========================================
   Single Tool Page
   ======================================== */
.dvl-single-tool {
    font-family: var(--dvl-font-ar);
    direction: rtl;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

.dvl-single-tool-header {
    text-align: center;
    margin-bottom: 40px;
}

.dvl-single-tool-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--dvl-text);
    margin: 0 0 12px;
}

.dvl-single-tool-category {
    display: inline-block;
    padding: 8px 20px;
    background: var(--dvl-bg);
    border-radius: 50px;
    font-size: 14px;
    color: var(--dvl-text-light);
}

.dvl-single-tool-content {
    background: var(--dvl-card-bg);
    border-radius: var(--dvl-radius);
    border: 1px solid var(--dvl-border);
    padding: 40px;
    box-shadow: var(--dvl-shadow);
}

.dvl-back-to-catalog {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 30px;
    color: var(--dvl-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--dvl-transition);
}

.dvl-back-to-catalog:hover {
    gap: 12px;
}

.dvl-back-to-catalog svg {
    transform: rotate(180deg);
}

/* ========================================
   Tool Error Message
   ======================================== */
.dvl-tool-error {
    text-align: center;
    padding: 40px;
    background: #FEF2F2;
    border: 1px solid #FECACA;
    border-radius: var(--dvl-radius-sm);
    color: #DC2626;
    font-size: 16px;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    .dvl-tools-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .dvl-tool-card-inner {
        height: 420px;
    }
    
    .dvl-tool-card-image {
        height: 240px;
    }
    
    .dvl-tools-filters {
        gap: 8px;
    }
    
    .dvl-filter-btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .dvl-single-tool-content {
        padding: 24px;
    }
    
    .dvl-single-tool-title {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .dvl-tool-card-inner {
        height: 380px;
    }
    
    .dvl-tool-card-image {
        height: 200px;
        margin: 12px;
    }
    
    .dvl-tool-card-info {
        padding: 0 16px 16px;
    }
    
    .dvl-tool-card-title {
        font-size: 16px;
    }
}

/* ========================================
   Animation Classes
   ======================================== */
@keyframes dvl-fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dvl-tool-card {
    animation: dvl-fadeIn 0.5s ease-out forwards;
}

.dvl-tool-card:nth-child(1) { animation-delay: 0.05s; }
.dvl-tool-card:nth-child(2) { animation-delay: 0.1s; }
.dvl-tool-card:nth-child(3) { animation-delay: 0.15s; }
.dvl-tool-card:nth-child(4) { animation-delay: 0.2s; }
.dvl-tool-card:nth-child(5) { animation-delay: 0.25s; }
.dvl-tool-card:nth-child(6) { animation-delay: 0.3s; }