/**
 * Grid Basic-1 Component Styles with Smart Layout
 * 
 * Flexible grid component with video preview functionality
 */

/* ===== BASE COMPONENT STRUCTURE ===== */

.grid-basic-1 {
    position: relative;
    width: 100%;
}

/* ===== CONTAINER ===== */

.grid-basic-1__container {
    width: 100%; /* Full width container */
    margin: 0;
    padding: 0; /* No left/right padding */
}

/* ===== TITLE ===== */

.grid-basic-1__title {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--gray-50);
}

@media (max-width: 768px) {
    .grid-basic-1__title {
        font-size: 2rem;
        margin-bottom: 2rem;
    }
}

/* ===== SMART GRID LAYOUT ===== */

.grid-basic-1__grid {
    display: grid;
    gap: 10px; /* Consistent 10px gap between all items */
    width: 100%; /* Full width grid */
}

/* Smart layout based on number of items */

/* 1 item: 1 column, centered */
.grid-basic-1.items-1 .grid-basic-1__grid {
    grid-template-columns: 1fr;
    justify-content: center;
    width: 290px;
    margin: 0 auto;
}

/* 2 items: 2 columns */
.grid-basic-1.items-2 .grid-basic-1__grid {
    grid-template-columns: repeat(2, 1fr);
}

/* 3 items: 3 columns */
.grid-basic-1.items-3 .grid-basic-1__grid {
    grid-template-columns: repeat(3, 1fr);
}

/* 4 items: 4 columns */
.grid-basic-1.items-4 .grid-basic-1__grid {
    grid-template-columns: repeat(4, 1fr);
}

/* 5 items: 3+2 layout */
.grid-basic-1.items-5 .grid-basic-1__grid {
    grid-template-columns: repeat(3, 1fr);
}

.grid-basic-1.items-5 .grid-basic-1__item:nth-child(4),
.grid-basic-1.items-5 .grid-basic-1__item:nth-child(5) {
    grid-column: span 1;
}

.grid-basic-1.items-5 .grid-basic-1__item:nth-child(4) {
    grid-column-start: 1;
    grid-column-end: 2;
}

.grid-basic-1.items-5 .grid-basic-1__item:nth-child(5) {
    grid-column-start: 3;
    grid-column-end: 4;
}

/* 6 items: 3+3 layout */
.grid-basic-1.items-6 .grid-basic-1__grid {
    grid-template-columns: repeat(3, 1fr);
}

/* 7 items: 4+3 layout */
.grid-basic-1.items-7 .grid-basic-1__grid {
    grid-template-columns: repeat(4, 1fr);
}

/* 8 items: 4+4 layout */
.grid-basic-1.items-8 .grid-basic-1__grid {
    grid-template-columns: repeat(4, 1fr);
}

/* 9+ items: 4 column max with auto-flow */
.grid-basic-1.smart-layout-4 .grid-basic-1__grid {
    grid-template-columns: repeat(4, 1fr);
}

/* Responsive overrides */
@media (max-width: 1024px) {
    .grid-basic-1__grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    
    /* Reset special positioning for tablet */
    .grid-basic-1__item {
        grid-column: span 1 !important;
        grid-column-start: auto !important;
        grid-column-end: auto !important;
    }
}

@media (max-width: 640px) {
    .grid-basic-1__grid {
        grid-template-columns: 1fr !important;
    }
}

/* ===== GRID ITEMS ===== */

.grid-basic-1__item {
    position: relative;
    background: transparent;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%; /* Full width of grid cell */
}

.grid-basic-1__item.has-link:hover .grid-basic-1__image-container {
    box-shadow: 0 0px 40px rgba(0, 0, 0, 0.45);
}

/* Clickable items */
.grid-basic-1__item.has-link {
    cursor: pointer;
}

.grid-basic-1__item.has-video {
    cursor: pointer;
}

/* ===== IMAGE CONTAINER ===== */

.grid-basic-1__image-container {
    position: relative;
    width: 100%;
    aspect-ratio: 290 / 235;
    overflow: hidden;
    border-radius: 0;
    background-color: #f0f0f0;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.grid-basic-1__image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.3s ease;
}

.grid-basic-1__item:hover .grid-basic-1__image {
    transform: scale(1.05);
}

/* ===== VIDEO PREVIEW FUNCTIONALITY ===== */

.grid-basic-1__video-preview {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1s ease;
    z-index: 2;
    overflow: hidden;
}

.grid-basic-1__video-preview iframe {
    width: 180%;
    height: 180%;
    border: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.grid-basic-1__item.video-ready .grid-basic-1__video-preview {
    opacity: 1;
    visibility: visible;
}

.grid-basic-1__item.video-previewing .grid-basic-1__image,
.grid-basic-1__item.video-ready .grid-basic-1__image {
    opacity: 1;
    transform: scale(1);
}

.grid-basic-1__video-preload {
    position: absolute;
    top: -9999px;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
}

/* Play indicator */
.grid-basic-1__play-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    z-index: 3;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.8);
}

.grid-basic-1__item.has-video:hover .grid-basic-1__play-indicator {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.grid-basic-1__item.video-previewing .grid-basic-1__play-indicator {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.8);
}

/* Video trigger button */
.grid-basic-1__video-trigger {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 4;
}

/* ===== CONTENT SECTION ===== */

.grid-basic-1__content {
    padding: 0.5rem;
    text-align: center;
}

.grid-basic-1__item-title {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold, 700);
    color: #ffffff;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.grid-basic-1__item-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

.grid-basic-1__item-title a:hover {
    color: rgba(255, 255, 255, 0.8);
}

.grid-basic-1__description {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.5;
    margin: 0;
}

/* ===== LINK STYLING ===== */

.grid-basic-1__link {
    color: inherit;
    text-decoration: none;
    display: block;
    transition: opacity 0.3s ease;
}

.grid-basic-1__link:hover {
    opacity: 1;
}

/* ===== BACKGROUND VARIATIONS ===== */

.grid-basic-1.bg-light {
    background-color: var(--color-gray-50, #f9fafb);
    padding: var(--spacing-section-sm, 2rem) 0;
}

.grid-basic-1.bg-light .grid-basic-1__title {
    color: var(--color-gray-900, #111827);
}

.grid-basic-1.bg-light .grid-basic-1__item {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.grid-basic-1.bg-light .grid-basic-1__item:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: rgba(0, 0, 0, 0.2);
}

.grid-basic-1.bg-light .grid-basic-1__item-title {
    color: var(--color-gray-900, #111827);
}

.grid-basic-1.bg-light .grid-basic-1__description {
    color: var(--color-gray-600, #4b5563);
}

.grid-basic-1.bg-dark {
    background-color: var(--color-gray-900, #111827);
    padding: var(--spacing-section-sm, 2rem) 0;
}

@media (min-width: 768px) {
    .grid-basic-1.bg-light,
    .grid-basic-1.bg-dark {
        padding: var(--spacing-section-md, 3rem) 0;
    }
}

@media (min-width: 1024px) {
    .grid-basic-1.bg-light,
    .grid-basic-1.bg-dark {
        padding: var(--spacing-section-lg, 4rem) 0;
    }
}

/* ===== ACCESSIBILITY ===== */

.grid-basic-1__item:focus,
.grid-basic-1__video-trigger:focus {
    outline: 2px solid var(--primary-700, #2563eb);
    outline-offset: 2px;
}

.grid-basic-1__link:focus {
    outline: 2px solid var(--primary-700, #2563eb);
    outline-offset: 2px;
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    .grid-basic-1__item,
    .grid-basic-1__image,
    .grid-basic-1__play-indicator,
    .grid-basic-1__video-preview {
        transition: none;
    }
    
    .grid-basic-1__item:hover {
        transform: none;
    }
    
    .grid-basic-1__item:hover .grid-basic-1__image {
        transform: none;
    }
}

/* High contrast support */
@media (prefers-contrast: high) {
    .grid-basic-1__item {
        border: 2px solid;
    }
    
    .grid-basic-1__play-indicator {
        background: rgba(0, 0, 0, 0.9);
        border: 2px solid white;
    }
}

/* ===== ERROR STATE ===== */

.grid-basic-1-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    margin: 2rem auto;
    max-width: 600px;
}

/* ===== LOADING STATE ===== */

.grid-basic-1__item.loading .grid-basic-1__image-container::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    margin: -20px 0 0 -20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: 5;
}

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