/* Utility Classes for Personal Blog */

/* Spacing utilities */
.spacing-section {
    padding: var(--section-padding);
}

.spacing-card {
    padding: var(--card-padding);
}

/* Flexbox utilities */
.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-column {
    display: flex;
    flex-direction: column;
}

/* Grid utilities */
.grid-responsive {
    display: grid;
    gap: 1.5rem;
}

.grid-auto-fit {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-auto-fill {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

/* Text utilities */
.text-gradient {
    background: linear-gradient(135deg, var(--faith-color), var(--finance-color));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-truncate {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.text-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.text-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Category color utilities */
.category-faith {
    color: var(--faith-color);
}

.category-finance {
    color: var(--finance-color);
}

.category-books {
    color: var(--books-color);
}

.category-opportunities {
    color: var(--opportunities-color);
}

.bg-category-faith {
    background-color: var(--faith-color);
    color: white;
}

.bg-category-finance {
    background-color: var(--finance-color);
    color: white;
}

.bg-category-books {
    background-color: var(--books-color);
    color: white;
}

.bg-category-opportunities {
    background-color: var(--opportunities-color);
    color: white;
}

/* Interactive states */
.hover-lift {
    transition: var(--transition);
}

.hover-lift:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.hover-scale {
    transition: var(--transition);
}

.hover-scale:hover {
    transform: scale(1.05);
}

/* Loading states */
.loading-skeleton {
    background: linear-gradient(90deg, var(--muted) 25%, var(--border) 50%, var(--muted) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Accessibility utilities */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.focus-visible:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Overlay utilities */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.overlay-gradient {
    background: linear-gradient(135deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.7) 100%);
}

.overlay-fade {
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
}

/* Scroll utilities */
.scroll-smooth {
    scroll-behavior: smooth;
}

.scroll-hidden {
    overflow: hidden;
}

.scroll-auto {
    overflow: auto;
}

/* Responsive visibility */
.mobile-only {
    display: none;
}

.desktop-only {
    display: block;
}

@media (max-width: 768px) {
    .mobile-only {
        display: block;
    }
    
    .desktop-only {
        display: none;
    }
}

/* Container variants */
.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Border utilities */
.border-gradient {
    border: 1px solid transparent;
    background: linear-gradient(var(--background), var(--background)) padding-box,
                linear-gradient(135deg, var(--faith-color), var(--finance-color)) border-box;
}

/* Shadow utilities */
.shadow-category-faith {
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.shadow-category-finance {
    box-shadow: 0 4px 20px rgba(5, 150, 105, 0.3);
}

.shadow-category-books {
    box-shadow: 0 4px 20px rgba(220, 38, 38, 0.3);
}

.shadow-category-opportunities {
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
}