/* ============================================
   UniTV Posts Grid - Main Styles
   ============================================ */

/* Reset e Base */
.unitv-posts-grid {
    --unitv-primary: #ff6b00;
    --unitv-primary-hover: #ff8533;
    --unitv-secondary: #1a1a2e;
    --unitv-text: #ffffff;
    --unitv-text-muted: #a0a0a0;
    --unitv-bg: #0f0f1a;
    --unitv-card-bg: #1a1a2e;
    --unitv-border: rgba(255, 255, 255, 0.1);
    --unitv-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    --unitv-radius: 16px;
    --unitv-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    margin: 0 auto;
    padding: 40px 20px;
    max-width: 1400px;
}

.unitv-posts-grid * {
    box-sizing: border-box;
}

/* Container dos Posts */
.unitv-posts-container {
    display: grid;
    gap: 30px;
}

.unitv-posts-grid.columns-3 .unitv-posts-container {
    grid-template-columns: repeat(3, 1fr);
}

.unitv-posts-grid.columns-2 .unitv-posts-container {
    grid-template-columns: repeat(2, 1fr);
}

.unitv-posts-grid.columns-4 .unitv-posts-container {
    grid-template-columns: repeat(4, 1fr);
}

/* Responsivo */
@media (max-width: 1024px) {
    .unitv-posts-grid.columns-3 .unitv-posts-container,
    .unitv-posts-grid.columns-4 .unitv-posts-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .unitv-posts-grid.columns-2 .unitv-posts-container,
    .unitv-posts-grid.columns-3 .unitv-posts-container,
    .unitv-posts-grid.columns-4 .unitv-posts-container {
        grid-template-columns: 1fr;
    }
}

/* Card Base */
.unitv-post-card {
    background: var(--unitv-card-bg);
    border-radius: var(--unitv-radius);
    overflow: hidden;
    transition: var(--unitv-transition);
    position: relative;
}

.unitv-post-card.unitv-hidden {
    display: none;
}

.unitv-post-card.unitv-fade-in {
    animation: unitvFadeIn 0.5s ease forwards;
}

@keyframes unitvFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Imagem do Card */
.unitv-card-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

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

.unitv-no-image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--unitv-secondary) 0%, var(--unitv-bg) 100%);
    color: var(--unitv-text-muted);
}

/* Categoria Badge */
.unitv-card-category {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--unitv-primary);
    color: #fff;
    padding: 6px 14px;
    border-radius: 30px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 2;
}

/* Conteúdo do Card */
.unitv-card-content {
    padding: 24px;
}

.unitv-card-title {
    margin: 0 0 12px;
    font-size: 18px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--unitv-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.unitv-card-excerpt {
    margin: 0 0 16px;
    font-size: 14px;
    line-height: 1.6;
    color: var(--unitv-text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.unitv-card-meta {
    display: flex;
    align-items: center;
    gap: 16px;
}

.unitv-card-date {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--unitv-text-muted);
}

.unitv-card-date svg {
    opacity: 0.7;
}

/* Botões Container */
.unitv-buttons-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 50px;
    flex-wrap: wrap;
}

/* Botão Load More */
.unitv-load-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    background: transparent;
    border: 2px solid var(--unitv-primary);
    color: var(--unitv-primary);
    font-size: 15px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--unitv-transition);
    position: relative;
}

.unitv-load-more-btn:hover {
    background: var(--unitv-primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 107, 0, 0.3);
}

.unitv-load-more-btn.loading {
    pointer-events: none;
    opacity: 0.8;
}

.unitv-load-more-btn.loading .unitv-btn-icon {
    display: none;
}

.unitv-loading-spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: unitvSpin 0.8s linear infinite;
}

.unitv-load-more-btn.loading .unitv-loading-spinner {
    display: block;
}

@keyframes unitvSpin {
    to {
        transform: rotate(360deg);
    }
}

/* Botão Principal */
.unitv-main-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    background: linear-gradient(135deg, var(--unitv-primary) 0%, var(--unitv-primary-hover) 100%);
    border: none;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    border-radius: 50px;
    text-decoration: none;
    cursor: pointer;
    transition: var(--unitv-transition);
}

.unitv-main-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(255, 107, 0, 0.4);
}

.unitv-btn-icon {
    display: flex;
    align-items: center;
    transition: var(--unitv-transition);
}

.unitv-main-btn:hover .unitv-btn-icon {
    transform: translateX(5px);
}

/* No Posts */
.unitv-no-posts {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--unitv-text-muted);
    font-size: 16px;
}

/* ============================================
   PRESET 1: Moderno Dark (Padrão - Baseado na imagem)
   ============================================ */
.unitv-posts-grid.preset-1 {
    --unitv-primary: #ff6b00;
    --unitv-primary-hover: #ff8533;
    --unitv-secondary: #1a1a2e;
    --unitv-text: #ffffff;
    --unitv-text-muted: #9ca3af;
    --unitv-bg: #0f0f1a;
    --unitv-card-bg: #1a1a2e;
    --unitv-border: rgba(255, 255, 255, 0.08);
    --unitv-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    --unitv-radius: 20px;
}

.unitv-posts-grid.preset-1 .unitv-post-card {
    background: linear-gradient(180deg, rgba(26, 26, 46, 0.9) 0%, rgba(15, 15, 26, 0.95) 100%);
    border: 1px solid var(--unitv-border);
    box-shadow: var(--unitv-shadow);
}

.unitv-posts-grid.preset-1 .unitv-post-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6), 0 0 0 1px var(--unitv-primary);
}

.unitv-posts-grid.preset-1 .unitv-post-card:hover .unitv-card-image img {
    transform: scale(1.08);
}

.unitv-posts-grid.preset-1 .unitv-card-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60%;
    background: linear-gradient(to top, rgba(15, 15, 26, 0.9) 0%, transparent 100%);
    pointer-events: none;
}

.unitv-posts-grid.preset-1 .unitv-card-category {
    background: linear-gradient(135deg, var(--unitv-primary) 0%, #ff8533 100%);
    box-shadow: 0 4px 15px rgba(255, 107, 0, 0.4);
}

.unitv-posts-grid.preset-1 .unitv-card-title {
    background: linear-gradient(135deg, #fff 0%, #e0e0e0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   PRESET 2: Clean Light
   ============================================ */
.unitv-posts-grid.preset-2 {
    --unitv-primary: #2563eb;
    --unitv-primary-hover: #3b82f6;
    --unitv-secondary: #f8fafc;
    --unitv-text: #1e293b;
    --unitv-text-muted: #64748b;
    --unitv-bg: #ffffff;
    --unitv-card-bg: #ffffff;
    --unitv-border: #e2e8f0;
    --unitv-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --unitv-radius: 16px;
}

.unitv-posts-grid.preset-2 .unitv-post-card {
    background: var(--unitv-card-bg);
    border: 1px solid var(--unitv-border);
    box-shadow: var(--unitv-shadow);
}

.unitv-posts-grid.preset-2 .unitv-post-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
    border-color: var(--unitv-primary);
}

.unitv-posts-grid.preset-2 .unitv-post-card:hover .unitv-card-image img {
    transform: scale(1.05);
}

.unitv-posts-grid.preset-2 .unitv-card-category {
    background: var(--unitv-primary);
    box-shadow: 0 2px 10px rgba(37, 99, 235, 0.3);
}

.unitv-posts-grid.preset-2 .unitv-card-title {
    color: var(--unitv-text);
}

.unitv-posts-grid.preset-2 .unitv-card-content {
    background: var(--unitv-card-bg);
}

.unitv-posts-grid.preset-2 .unitv-load-more-btn {
    border-color: var(--unitv-primary);
    color: var(--unitv-primary);
}

.unitv-posts-grid.preset-2 .unitv-load-more-btn:hover {
    background: var(--unitv-primary);
    color: #fff;
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
}

.unitv-posts-grid.preset-2 .unitv-main-btn {
    background: linear-gradient(135deg, var(--unitv-primary) 0%, var(--unitv-primary-hover) 100%);
}

.unitv-posts-grid.preset-2 .unitv-main-btn:hover {
    box-shadow: 0 15px 40px rgba(37, 99, 235, 0.4);
}

.unitv-posts-grid.preset-2 .unitv-no-image {
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    color: #94a3b8;
}

/* ============================================
   PRESET 3: Gradient Glass
   ============================================ */
.unitv-posts-grid.preset-3 {
    --unitv-primary: #8b5cf6;
    --unitv-primary-hover: #a78bfa;
    --unitv-secondary: rgba(139, 92, 246, 0.1);
    --unitv-text: #ffffff;
    --unitv-text-muted: #c4b5fd;
    --unitv-bg: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    --unitv-card-bg: rgba(255, 255, 255, 0.05);
    --unitv-border: rgba(255, 255, 255, 0.1);
    --unitv-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --unitv-radius: 24px;
}

.unitv-posts-grid.preset-3 {
    background: var(--unitv-bg);
    border-radius: 30px;
    padding: 50px;
}

.unitv-posts-grid.preset-3 .unitv-post-card {
    background: var(--unitv-card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--unitv-border);
    box-shadow: var(--unitv-shadow);
}

.unitv-posts-grid.preset-3 .unitv-post-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 25px 50px rgba(139, 92, 246, 0.3);
    border-color: rgba(139, 92, 246, 0.5);
}

.unitv-posts-grid.preset-3 .unitv-post-card:hover .unitv-card-image img {
    transform: scale(1.1);
}

.unitv-posts-grid.preset-3 .unitv-card-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, transparent 50%);
    z-index: 1;
    pointer-events: none;
}

.unitv-posts-grid.preset-3 .unitv-card-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(to top, rgba(26, 26, 46, 0.95) 0%, transparent 100%);
    pointer-events: none;
}

.unitv-posts-grid.preset-3 .unitv-card-category {
    background: linear-gradient(135deg, var(--unitv-primary) 0%, #ec4899 100%);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.5);
}

.unitv-posts-grid.preset-3 .unitv-card-title {
    background: linear-gradient(135deg, #fff 0%, #c4b5fd 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.unitv-posts-grid.preset-3 .unitv-card-content {
    background: linear-gradient(180deg, transparent 0%, rgba(139, 92, 246, 0.05) 100%);
}

.unitv-posts-grid.preset-3 .unitv-load-more-btn {
    border-color: var(--unitv-primary);
    color: var(--unitv-primary);
    backdrop-filter: blur(10px);
}

.unitv-posts-grid.preset-3 .unitv-load-more-btn:hover {
    background: linear-gradient(135deg, var(--unitv-primary) 0%, #ec4899 100%);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 15px 40px rgba(139, 92, 246, 0.4);
}

.unitv-posts-grid.preset-3 .unitv-main-btn {
    background: linear-gradient(135deg, var(--unitv-primary) 0%, #ec4899 100%);
}

.unitv-posts-grid.preset-3 .unitv-main-btn:hover {
    box-shadow: 0 20px 50px rgba(139, 92, 246, 0.5);
}

.unitv-posts-grid.preset-3 .unitv-no-image {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(236, 72, 153, 0.2) 100%);
    color: var(--unitv-text-muted);
}

/* ============================================
   Responsivo Geral
   ============================================ */
@media (max-width: 768px) {
    .unitv-posts-grid {
        padding: 30px 15px;
    }
    
    .unitv-posts-grid.preset-3 {
        padding: 30px 20px;
        border-radius: 20px;
    }
    
    .unitv-posts-container {
        gap: 20px;
    }
    
    .unitv-card-content {
        padding: 20px;
    }
    
    .unitv-card-title {
        font-size: 16px;
    }
    
    .unitv-card-excerpt {
        font-size: 13px;
    }
    
    .unitv-buttons-container {
        flex-direction: column;
        gap: 15px;
        margin-top: 40px;
    }
    
    .unitv-load-more-btn,
    .unitv-main-btn {
        width: 100%;
        justify-content: center;
        padding: 14px 30px;
    }
}

@media (max-width: 480px) {
    .unitv-card-category {
        padding: 5px 12px;
        font-size: 10px;
    }
    
    .unitv-card-title {
        font-size: 15px;
        margin-bottom: 10px;
    }
    
    .unitv-card-excerpt {
        -webkit-line-clamp: 2;
    }
}