/**
 * Four W's Filter System Styles
 * 
 * Full-viewport category tiles with video hover effects
 * Activity card grid with filtering
 * Mobile horizontal scroll with indicators
 * Sticky filter bar
 * 
 * IMPORTANT: This CSS is scoped to .four-ws-filter-system only.
 */

:root {
    --header-height: 60px;
    --tile-height: calc(100vh - var(--header-height));
    --tile-min-height: 500px;
    --tile-max-height: 900px;
    
    --wild-bg: #2a3d44;
    --wander-bg: #3a5560;
    --water-bg: #4a6570;
    --whimsy-bg: #506a75;
    
    --transition-speed: 0.4s;
    --transition-easing: cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 0.2s;
    --transition-slow: 0.6s;
    
    --card-gap: 1.5rem;
    --card-border-radius: 8px;
    
    --sticky-bar-height: 60px;
    --sticky-bar-bg: rgba(255, 255, 255, 0.98);
    --sticky-bar-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    
    /* Brand colors */
    --brand-orange: #eb6b40;
    --brand-dark-blue: #364b54;
    --brand-light-blue: #a0babf;
    --brand-gray: #7b7c7f;
}

/* ============================================
   FOUR W'S FILTER SYSTEM CONTAINER
   ============================================ */

.four-ws-filter-system {
    position: relative;
    width: 100%;
    overflow-x: hidden;
    /* Performance optimizations */
    contain: layout style paint;
    will-change: auto;
    /* Prevent layout shift */
    min-height: 100vh;
}

/* ============================================
   FILTER TILES SECTION
   ============================================ */

.four-ws-tiles {
    position: relative;
    width: 100%;
    min-height: var(--tile-min-height);
    overflow: hidden;
}

.four-ws-tiles__container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    height: var(--tile-height);
    min-height: var(--tile-min-height);
    max-height: var(--tile-max-height);
    gap: 0;
}

/* Individual Tile */
.four-ws-tile {
    position: relative;
    height: 100%;
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition-speed) var(--transition-easing),
                opacity var(--transition-speed) var(--transition-easing);
    background-color: var(--wild-bg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
    color: #fff;
    /* Performance optimizations */
    contain: layout style paint;
    will-change: transform, opacity;
    /* Force GPU acceleration - combine with existing transform */
    transform: scale(1) translateZ(0);
}

.four-ws-tile:active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
}

/* Overlay covering the whole filter tile - darker for text visibility, no blur */
.four-ws-tile::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 2;
    pointer-events: none;
    transition: background var(--transition-speed) var(--transition-easing);
}

/* Slightly lighter overlay on hover/focus for better video visibility */
.four-ws-tile:hover::before,
.four-ws-tile:focus::before,
.four-ws-tile.is-active::before {
    background: rgba(0, 0, 0, 0.3);
}

.four-ws-tile[data-category="wild"] {
    background-color: var(--wild-bg);
}

.four-ws-tile[data-category="wander"] {
    background-color: var(--wander-bg);
}

.four-ws-tile[data-category="water"] {
    background-color: var(--water-bg);
}

.four-ws-tile[data-category="whimsy"] {
    background-color: var(--whimsy-bg);
}

.four-ws-tile:focus {
    outline: 3px solid rgba(255, 255, 255, 0.8);
    outline-offset: -3px;
}

.four-ws-tile:hover,
.four-ws-tile:focus {
    transform: scale(1.02);
    z-index: 10;
}

.four-ws-tile.is-active {
    transform: scale(1.05);
    z-index: 10;
}

.four-ws-tile.is-dimmed {
    opacity: 0.4;
}

/* Dim inactive tiles when one is selected */
.four-ws-tile.is-inactive {
    position: relative;
}

.four-ws-tile.is-inactive::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.6);
    z-index: 3;
    pointer-events: none;
    transition: background var(--transition-speed) var(--transition-easing);
}

.four-ws-tile.is-inactive .four-ws-tile__poster,
.four-ws-tile.is-inactive .four-ws-tile__video {
    opacity: 0.5;
    filter: brightness(0.7);
}

.four-ws-tile.is-inactive .four-ws-tile__content {
    opacity: 0.8;
}

/* Tile Media */
.four-ws-tile__media {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.four-ws-tile__poster {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: opacity var(--transition-speed) var(--transition-easing);
}

/* Error state for tile poster */
.four-ws-tile__poster[style*="opacity: 0.5"] {
    filter: grayscale(100%);
    opacity: 0.5 !important;
}

.four-ws-tile:hover .four-ws-tile__poster,
.four-ws-tile:focus .four-ws-tile__poster,
.four-ws-tile.is-active .four-ws-tile__poster {
    opacity: 0;
}

.four-ws-tile__video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0;
    transition: opacity var(--transition-speed) var(--transition-easing);
    pointer-events: none;
    will-change: opacity;
}

.four-ws-tile:hover .four-ws-tile__video,
.four-ws-tile:focus .four-ws-tile__video,
.four-ws-tile.is-active .four-ws-tile__video {
    will-change: auto;
}

.four-ws-tile:hover .four-ws-tile__video,
.four-ws-tile:focus .four-ws-tile__video,
.four-ws-tile.is-active .four-ws-tile__video {
    opacity: 1;
}

/* Tile Content */
.four-ws-tile__content {
    position: relative;
    z-index: 3;
    max-width: 90%;
    text-align: center;
}

.four-ws-tile__title {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 700;
    margin: 0 0 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6), 0 1px 3px rgba(0, 0, 0, 0.4);
    transition: transform var(--transition-speed) var(--transition-easing);
    text-align: center;
}

.four-ws-tile:hover .four-ws-tile__title,
.four-ws-tile:focus .four-ws-tile__title {
    transform: translateY(-5px);
}

.four-ws-tile__subtitle {
    font-family: 'Open Sans', sans-serif;
    font-size: clamp(0.875rem, 2vw, 1.25rem);
    font-weight: 400;
    margin: 0;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.5);
    opacity: 0.9;
}

/* Play Icon - Hidden */
.four-ws-tile__play {
    display: none;
}

/* ============================================
   MOBILE SCROLL INDICATORS
   ============================================ */

.four-ws-tiles__indicators {
    display: none; /* Hidden on desktop, shown on mobile */
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;
    gap: 0.5rem;
    padding: 0.5rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.four-ws-tiles__indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    padding: 0;
    transition: background var(--transition-speed) var(--transition-easing),
                transform var(--transition-speed) var(--transition-easing);
}

.four-ws-tiles__indicator:hover,
.four-ws-tiles__indicator:focus {
    background: rgba(255, 255, 255, 0.8);
    transform: scale(1.2);
    outline: none;
}

.four-ws-tiles__indicator.is-active {
    background: rgba(255, 255, 255, 1);
    transform: scale(1.3);
}

/* Smooth Scroll Indicator */
.four-ws-tiles__scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 15;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.9);
    font-family: 'Open Sans', sans-serif;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0;
    animation: fadeInBounce 1s ease-out 1s forwards;
    pointer-events: none;
}

.four-ws-tiles__scroll-indicator svg {
    width: 24px;
    height: 24px;
    animation: bounceDown 2s ease-in-out infinite;
}

@keyframes fadeInBounce {
    0% {
        opacity: 0;
        transform: translateX(-50%) translateY(-10px);
    }
    100% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

@keyframes bounceDown {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(8px);
    }
}

/* Hide scroll indicator on mobile and when scrolled */
@media (max-width: 1024px) {
    .four-ws-tiles__scroll-indicator {
        display: none;
    }
    
    .four-ws-tiles__hint-text--desktop {
        display: none;
    }
    
    .four-ws-tiles__hint-text--mobile {
        display: block;
        font-size: 0.75rem;
        padding: 0.4rem 0.875rem;
    }
}

.four-ws-tiles__scroll-indicator.is-hidden {
    opacity: 0;
    pointer-events: none;
}

/* Simple First-Time Instruction */
.four-ws-first-instruction {
    position: absolute;
    top: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease-out;
    display: block;
}

.four-ws-first-instruction.is-visible {
    opacity: 1;
    pointer-events: auto;
}

.four-ws-first-instruction.is-hidden {
    opacity: 0 !important;
    display: none !important;
}

.four-ws-first-instruction__text {
    font-family: 'Open Sans', sans-serif;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 0.625rem 1.25rem;
    border-radius: 25px;
    text-align: center;
    white-space: nowrap;
    letter-spacing: 0.02em;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    margin: 0;
    font-weight: 400;
}

@media (max-width: 768px) {
    .four-ws-first-instruction__text {
        font-size: 0.75rem;
        padding: 0.5rem 1rem;
    }
}


/* ============================================
   STICKY FILTER BAR
   ============================================ */

.four-ws-sticky-bar {
    position: sticky;
    top: var(--header-height);
    z-index: 100;
    background: var(--sticky-bar-bg);
    box-shadow: var(--sticky-bar-shadow);
    backdrop-filter: blur(10px);
    display: none;
    opacity: 0;
    transform: translateY(-100%);
    transition: opacity var(--transition-speed) var(--transition-easing),
                transform var(--transition-speed) var(--transition-easing);
}

.four-ws-sticky-bar.is-visible {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.four-ws-sticky-bar__container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.four-ws-sticky-bar__button {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.5rem 1.25rem;
    border: 2px solid transparent;
    background: transparent;
    color: #333;
    cursor: pointer;
    border-radius: 4px;
    transition: all var(--transition-speed) var(--transition-easing);
    white-space: nowrap;
    transform: scale(1);
    position: relative;
}


.four-ws-sticky-bar__button:active {
    transform: scale(0.95);
    transition: transform 0.1s ease;
}

.four-ws-sticky-bar__button:hover,
.four-ws-sticky-bar__button:focus {
    background: rgba(0, 0, 0, 0.05);
    outline: none;
}

.four-ws-sticky-bar__button:hover,
.four-ws-sticky-bar__button:focus {
    background: rgba(235, 107, 64, 0.1);
    border-color: var(--brand-orange);
    color: var(--brand-orange);
    outline: none;
}

/* Active button styling - removed duplicate, see below */

/* Dim inactive buttons when one is selected */
.four-ws-sticky-bar__button.inactive {
    opacity: 0.4;
    position: relative;
}

.four-ws-sticky-bar__button.inactive::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 4px;
    pointer-events: none;
}

/* Inactive buttons still hoverable - reduce overlay on hover */
.four-ws-sticky-bar__button.inactive:hover {
    opacity: 0.7;
}

.four-ws-sticky-bar__button.inactive:hover::before {
    background: rgba(255, 255, 255, 0.4);
}

/* Active button indicator - orange bar at bottom */
.four-ws-sticky-bar__button.active::after,
.four-ws-sticky-bar__button[aria-pressed="true"]::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 3px;
    background: var(--brand-orange) !important;
    border-radius: 2px 2px 0 0;
    transition: width var(--transition-speed) var(--transition-easing);
    z-index: 3;
}

.four-ws-sticky-bar__button.active:hover::after,
.four-ws-sticky-bar__button[aria-pressed="true"]:hover::after {
    width: 80%;
}

/* Active button text color */
.four-ws-sticky-bar__button.active,
.four-ws-sticky-bar__button[aria-pressed="true"] {
    color: var(--brand-orange) !important;
    font-weight: 700;
}

/* Card count badges on filter buttons */
.four-ws-sticky-bar__button::before {
    content: attr(data-count);
    position: absolute;
    top: -8px;
    right: -8px;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: var(--brand-orange);
    color: #fff;
    border-radius: 10px;
    font-size: 0.625rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0);
    transition: opacity var(--transition-speed) var(--transition-easing),
                transform var(--transition-speed) var(--transition-easing);
    z-index: 2;
    pointer-events: none;
}

.four-ws-sticky-bar__button[data-count]:not([data-count="0"])::before {
    opacity: 1;
    transform: scale(1);
}

.four-ws-sticky-bar__button.active::before,
.four-ws-sticky-bar__button[aria-pressed="true"]::before {
    background: var(--brand-dark-blue);
}

/* ============================================
   ACTIVITY CARDS SECTION
   ============================================ */

.activity-cards {
    padding: 4rem 2rem;
    background: #f8f8f8;
    min-height: 400px;
    position: relative;
}

/* Loading state */
.activity-cards.is-loading {
    pointer-events: none;
    opacity: 0.7;
}

.activity-cards.is-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 3px solid rgba(235, 107, 64, 0.2);
    border-top-color: var(--brand-orange);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    z-index: 10;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* Skeleton loading screens for initial load */
.four-ws-filter-system.is-loading .four-ws-tile {
    background: linear-gradient(90deg, #e8e8e8 25%, #f0f0f0 50%, #e8e8e8 75%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s infinite;
}

.four-ws-filter-system.is-loading .four-ws-tile__content {
    opacity: 0.3;
}

.four-ws-filter-system.is-loading .activity-card {
    background: linear-gradient(90deg, #f5f5f5 25%, #fafafa 50%, #f5f5f5 75%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s infinite;
}

.four-ws-filter-system.is-loading .activity-card__media {
    background: linear-gradient(90deg, #e0e0e0 25%, #e8e8e8 50%, #e0e0e0 75%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s infinite;
}

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

.activity-cards__container {
    max-width: 1400px;
    margin: 0 auto;
}

/* Results Header */
.activity-cards__header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.activity-cards__title {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin: 0 0 0.5rem 0;
    color: var(--brand-dark-blue);
    letter-spacing: -0.02em;
}

.activity-cards__subtitle {
    font-family: 'Open Sans', sans-serif;
    font-size: 1.125rem;
    color: var(--brand-gray);
    margin: 0 0 1.5rem 0;
    font-weight: 400;
}


.activity-cards__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--card-gap);
    align-items: start;
}

/* Better responsive breakpoints */
@media (min-width: 1400px) {
    .activity-cards__grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (min-width: 1200px) and (max-width: 1399px) {
    .activity-cards__grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (min-width: 992px) and (max-width: 1199px) {
    .activity-cards__grid {
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    }
}

@media (min-width: 768px) and (max-width: 991px) {
    .activity-cards__grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }
}

/* Stagger animation delays for cards */
.activity-card:nth-child(1) { animation-delay: 0.05s; }
.activity-card:nth-child(2) { animation-delay: 0.1s; }
.activity-card:nth-child(3) { animation-delay: 0.15s; }
.activity-card:nth-child(4) { animation-delay: 0.2s; }
.activity-card:nth-child(5) { animation-delay: 0.25s; }
.activity-card:nth-child(n+6) { animation-delay: 0.3s; }

.activity-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08),
                0 1px 3px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition-speed) var(--transition-easing),
                box-shadow var(--transition-speed) var(--transition-easing),
                opacity 0.3s var(--transition-easing),
                border-top-width var(--transition-speed) var(--transition-easing);
    opacity: 1;
    transform: scale(1);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-top: 3px solid var(--brand-orange);
    position: relative;
    /* Performance optimizations */
    contain: layout style paint;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    /* Force GPU acceleration - combine with existing transform */
    transform: scale(1) translateZ(0);
}

.activity-card.is-hidden {
    display: none !important; /* Remove from grid layout flow to prevent gaps */
    opacity: 0;
    transform: scale(0.95);
    visibility: hidden;
}

.activity-card__link {
    display: block;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

.activity-card__link:focus {
    outline: 3px solid var(--brand-orange);
    outline-offset: 3px;
    border-radius: 12px;
}

.activity-card__link:focus-visible {
    outline: 3px solid var(--brand-orange);
    outline-offset: 3px;
    border-radius: 12px;
}

.activity-card__media {
    position: relative;
    width: 100%;
    padding-top: 133.33%; /* 3:4 aspect ratio */
    overflow: hidden;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    border-radius: 12px 12px 0 0;
}

/* Placeholder for missing images */
.activity-card__placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 0;
}

.activity-card__placeholder::before {
    content: '📷';
    font-size: 3rem;
    opacity: 0.3;
}

/* Error state for failed image loads */
.activity-card__media.has-error {
    background: linear-gradient(135deg, #e8e8e8 0%, #d0d0d0 100%);
}

.activity-card__media.has-error::after {
    content: 'Image unavailable';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: 'Open Sans', sans-serif;
    font-size: 0.75rem;
    color: var(--brand-gray);
    opacity: 0.6;
    z-index: 1;
    pointer-events: none;
}

/* Ensure error state doesn't break layout */
.activity-card__poster[style*="display: none"] + .activity-card__video {
    display: none;
}

.activity-card__poster {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: opacity 0.3s ease, transform var(--transition-speed) var(--transition-easing);
    z-index: 1;
    opacity: 1;
}

/* Lazy loading blur effect - only for images with data-src */
.activity-card__poster[data-src] {
    filter: blur(5px);
    transition: opacity 0.3s ease, transform var(--transition-speed) var(--transition-easing), filter 0.3s ease;
}

.activity-card__poster[data-src].is-loaded,
.activity-card__poster:not([data-src]) {
    filter: blur(0);
}

.activity-card:hover .activity-card__poster,
.activity-card:focus-within .activity-card__poster {
    will-change: opacity, transform;
}

.activity-card:hover .activity-card__poster,
.activity-card:focus-within .activity-card__poster {
    transform: scale(1.05);
}

.activity-card__video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0;
    transition: opacity var(--transition-speed) var(--transition-easing),
                transform var(--transition-speed) var(--transition-easing);
    pointer-events: none;
    z-index: 1;
}

.activity-card:hover .activity-card__video,
.activity-card:focus-within .activity-card__video {
    will-change: opacity, transform;
}

.activity-card:hover .activity-card__video,
.activity-card:focus-within .activity-card__video {
    transform: scale(1.05);
}

.activity-card:hover .activity-card__video,
.activity-card:focus-within .activity-card__video {
    opacity: 1;
    z-index: 2;
}

/* Hide poster when video plays on hover */
.activity-card:hover .activity-card__poster,
.activity-card:focus-within .activity-card__poster {
    opacity: 0;
}

/* Gradient overlay for text legibility */
.activity-card__overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.75) 0%, rgba(0, 0, 0, 0.45) 50%, transparent 100%);
    z-index: 3;
    pointer-events: none;
    transition: opacity var(--transition-speed) var(--transition-easing),
                background var(--transition-speed) var(--transition-easing);
}

.activity-card:hover .activity-card__overlay,
.activity-card:focus-within .activity-card__overlay {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.5) 50%, transparent 100%);
}

/* Text overlay positioned over image */
.activity-card__content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem;
    z-index: 4;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    pointer-events: none;
}

.activity-card__category {
    font-family: 'Open Sans', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin: 0;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.2;
    transition: opacity var(--transition-speed) var(--transition-easing);
}

.activity-card:hover .activity-card__category,
.activity-card:focus-within .activity-card__category {
    opacity: 1;
    color: rgba(255, 255, 255, 1);
}

.activity-card__title {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.375rem;
    font-weight: 700;
    margin: 0;
    color: #fff;
    line-height: 1.3;
    letter-spacing: -0.02em;
    transition: color var(--transition-speed) var(--transition-easing),
                transform var(--transition-speed) var(--transition-easing);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.activity-card:hover .activity-card__title,
.activity-card:focus-within .activity-card__title {
    transform: translateY(-2px);
}

.activity-card:hover,
.activity-card:focus-within {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 32px rgba(235, 107, 64, 0.2),
                0 6px 12px rgba(0, 0, 0, 0.1);
    border-top-color: var(--brand-orange);
    border-top-width: 4px;
}

/* Ripple effect on card click */
.activity-card {
    position: relative;
    overflow: hidden;
}

.activity-card::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(235, 107, 64, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    pointer-events: none;
    z-index: 5;
}

.activity-card:active::after {
    width: 300px;
    height: 300px;
    transition: width 0s, height 0s;
}

.activity-card:active {
    transform: translateY(-4px) scale(0.99);
    transition: transform 0.1s ease;
}

/* Better touch feedback on mobile */
@media (hover: none) and (pointer: coarse) {
    /* Disable hover effects completely on touch devices */
    .four-ws-tile:hover,
    .four-ws-tile:focus {
        transform: scale(1);
    }
    
    .four-ws-tile:hover .four-ws-tile__video,
    .four-ws-tile:focus .four-ws-tile__video {
        opacity: 0;
    }
    
    .activity-card:active {
        transform: translateY(-1px) scale(0.98);
        transition: transform 0.1s ease;
        box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
    }
    
    .activity-card__link:active {
        opacity: 0.95;
    }
    
    /* Improve tap targets on mobile */
    .four-ws-tile {
        min-height: 50vh;
        -webkit-tap-highlight-color: rgba(255, 255, 255, 0.2);
        tap-highlight-color: rgba(255, 255, 255, 0.2);
    }
    
    .four-ws-sticky-bar__button {
        min-height: 44px;
        min-width: 44px;
        -webkit-tap-highlight-color: rgba(235, 107, 64, 0.2);
        tap-highlight-color: rgba(235, 107, 64, 0.2);
    }
    
    .activity-card {
        min-height: 200px;
        -webkit-tap-highlight-color: rgba(235, 107, 64, 0.1);
        tap-highlight-color: rgba(235, 107, 64, 0.1);
    }
    
    /* Disable video hover effects on touch */
    .activity-card:hover .activity-card__video,
    .activity-card:focus-within .activity-card__video {
        opacity: 0;
    }
    
    .activity-card:hover .activity-card__poster,
    .activity-card:focus-within .activity-card__poster {
        opacity: 1;
    }
    
    /* Better touch scrolling */
    .four-ws-sticky-bar__container {
        -webkit-overflow-scrolling: touch;
        scroll-behavior: smooth;
    }
    
    /* Prevent text selection on tap */
    .four-ws-tile,
    .activity-card,
    .four-ws-sticky-bar__button {
        -webkit-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
        -webkit-touch-callout: none;
    }
    
    /* Allow text selection in content areas */
    .activity-card__title,
    .activity-card__category,
    .four-ws-tile__title,
    .four-ws-tile__subtitle {
        -webkit-user-select: text;
        -moz-user-select: text;
        -ms-user-select: text;
        user-select: text;
    }
}

.activity-card:hover .activity-card__title,
.activity-card:focus-within .activity-card__title {
    color: var(--brand-orange);
    text-shadow: 0 2px 8px rgba(235, 107, 64, 0.4);
}

/* Smooth fade-in animation for cards */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Staggered reveal animation for cards */
@keyframes revealCard {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
        filter: blur(4px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
        filter: blur(0);
    }
}

.activity-card.is-revealing {
    animation: revealCard 0.5s var(--transition-easing) backwards;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.activity-card {
    animation: fadeInUp 0.5s var(--transition-easing) backwards;
    will-change: transform, opacity;
}

/* Optimize animations - only use will-change when animating */
.activity-card:not(.is-hidden) {
    will-change: auto;
}

.activity-card:hover,
.activity-card:focus-within {
    will-change: transform, box-shadow;
}

/* Improve animation performance */
.activity-card * {
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.activity-card.is-hidden {
    animation: none;
}

.activity-cards__empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    color: var(--brand-gray);
    font-family: 'Open Sans', sans-serif;
}

.activity-cards__empty::before {
    content: '🔍';
    display: block;
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.activity-cards__empty p {
    font-size: 1.125rem;
    line-height: 1.6;
    margin: 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: var(--brand-gray);
}

/* No Results Message */
.activity-cards__no-results {
    display: none;
    text-align: center;
    padding: 4rem 2rem;
    max-width: 600px;
    margin: 0 auto;
    animation: fadeInUp 0.5s var(--transition-easing) backwards;
}

.activity-cards__no-results-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    opacity: 0.6;
    display: block;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.6;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

.activity-cards__no-results-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 1rem 0;
    color: var(--brand-dark-blue);
    letter-spacing: -0.02em;
}

.activity-cards__no-results-message {
    font-family: 'Open Sans', sans-serif;
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--brand-gray);
    margin: 0;
}

.activity-cards__no-results-link {
    background: none;
    border: none;
    color: var(--brand-orange);
    text-decoration: underline;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
    font-weight: 600;
    padding: 0;
    margin: 0;
    transition: color var(--transition-speed) var(--transition-easing);
}

.activity-cards__no-results-link:hover,
.activity-cards__no-results-link:focus {
    color: var(--brand-dark-blue);
    outline: none;
    text-decoration: none;
}

.activity-cards__no-results-link:focus-visible {
    outline: 2px solid var(--brand-orange);
    outline-offset: 2px;
    border-radius: 2px;
}

/* ============================================
   MOBILE STYLES
   ============================================ */

@media (max-width: 1024px) {
    /* Reduce animations on mobile for better performance */
    .four-ws-tile,
    .activity-card,
    .four-ws-sticky-bar__button {
        transition-duration: 0.2s;
    }
    
    /* Disable hover effects on mobile */
    .four-ws-tile:hover,
    .four-ws-tile:focus {
        transform: scale(1);
    }
    
    .activity-card:hover,
    .activity-card:focus-within {
        transform: translateY(0) scale(1);
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08),
                    0 1px 3px rgba(0, 0, 0, 0.05);
    }
    
    .four-ws-tiles__container {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(2, 1fr);
        height: auto;
        min-height: 100vh;
        max-height: none;
        overflow: visible;
        gap: 0;
    }
    
    .four-ws-tile {
        min-width: auto;
        width: 100%;
        min-height: 50vh;
        aspect-ratio: 1;
        padding: 1.5rem;
    }
    
    /* Optimize video on mobile - disable autoplay on hover */
    .four-ws-tile__video {
        display: none; /* Hide videos on mobile to save bandwidth */
    }
    
    .four-ws-tiles__indicators {
        display: none; /* Hide indicators - not needed with grid */
    }
    
    .activity-cards__header {
        margin-bottom: 2rem;
        padding-bottom: 1.5rem;
    }
    
    .activity-cards__title {
        font-size: 1.5rem;
        line-height: 1.2;
    }
    
    .activity-cards__subtitle {
        font-size: 1rem;
        line-height: 1.5;
    }
    
    .activity-cards__grid {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
        gap: 0.875rem;
    }
    
    .activity-cards {
        padding: 2rem 1rem;
    }
    
    .activity-cards__no-results {
        padding: 3rem 1.5rem;
    }
    
    .activity-cards__no-results-icon {
        font-size: 3rem;
    }
    
    .activity-cards__no-results-title {
        font-size: 1.25rem;
    }
    
    .activity-cards__no-results-message {
        font-size: 1rem;
    }
    
    /* Improve sticky bar on tablet - make it horizontally scrollable */
    .four-ws-sticky-bar {
        top: var(--header-height);
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none; /* Firefox */
        -ms-overflow-style: none; /* IE/Edge */
    }
    
    .four-ws-sticky-bar::-webkit-scrollbar {
        display: none; /* Chrome/Safari */
    }
    
    .four-ws-sticky-bar__container {
        padding: 0.625rem 0.75rem;
        gap: 0.375rem;
        justify-content: flex-start;
        min-width: max-content;
        flex-wrap: nowrap;
    }
    
    .four-ws-sticky-bar__button {
        font-size: 0.8125rem;
        padding: 0.45rem 1rem;
        flex-shrink: 0;
        white-space: nowrap;
    }
    
    /* Hide video on activity cards for mobile */
    .activity-card__video {
        display: none;
    }
}

@media (max-width: 768px) {
    :root {
        --tile-height: auto;
        --tile-min-height: 50vh;
        --transition-speed: 0.2s; /* Faster transitions on mobile */
    }
    
    /* Further reduce animations on small mobile */
    .four-ws-tile,
    .activity-card,
    .four-ws-sticky-bar__button {
        transition-duration: 0.15s;
    }
    
    .four-ws-tiles__container {
        min-height: 100vh;
        gap: 0;
    }
    
    .four-ws-tile {
        padding: 1.25rem 1rem;
        min-height: 50vh;
    }
    
    .four-ws-tile__title {
        font-size: clamp(1.5rem, 6vw, 2rem);
        line-height: 1.1;
        margin-bottom: 0.375rem;
    }
    
    .four-ws-tile__subtitle {
        font-size: clamp(0.75rem, 2vw, 1rem);
        line-height: 1.3;
    }
    
    /* Optimize activity cards grid for mobile */
    .activity-cards__grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 0.75rem;
    }
    
    .activity-cards {
        padding: 1.5rem 0.75rem;
    }
    
    .activity-card {
        border-radius: 10px;
        /* Reduce shadow on mobile for performance */
        box-shadow: 0 1px 6px rgba(0, 0, 0, 0.08),
                    0 1px 2px rgba(0, 0, 0, 0.05);
    }
    
    .activity-card__content {
        padding: 1rem 0.875rem;
        gap: 0.375rem;
    }
    
    .activity-card__category {
        font-size: 0.625rem;
        letter-spacing: 0.08em;
    }
    
    .activity-card__title {
        font-size: 0.9375rem;
        line-height: 1.3;
        font-weight: 600; /* Slightly lighter for mobile readability */
    }
    
    /* Mobile sticky bar optimizations */
    .four-ws-sticky-bar {
        top: var(--header-height);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    }
    
    .four-ws-sticky-bar__container {
        padding: 0.5rem 0.75rem;
        gap: 0.375rem;
        justify-content: flex-start;
    }
    
    .four-ws-sticky-bar__button {
        font-size: 0.75rem;
        padding: 0.5rem 1rem;
        min-height: 44px; /* Better touch target */
        border-radius: 6px;
    }
    
    .activity-cards__header {
        margin-bottom: 1.5rem;
        padding-bottom: 1rem;
    }
    
    .activity-cards__title {
        font-size: 1.25rem;
        line-height: 1.2;
    }
    
    .activity-cards__subtitle {
        font-size: 0.875rem;
        margin-bottom: 1rem;
        line-height: 1.5;
    }
    
    .activity-cards__no-results {
        padding: 2rem 1rem;
    }
    
    .activity-cards__no-results-icon {
        font-size: 2.5rem;
    }
    
    .activity-cards__no-results-title {
        font-size: 1.125rem;
        line-height: 1.3;
    }
    
    .activity-cards__no-results-message {
        font-size: 0.9375rem;
        line-height: 1.6;
    }
    
    /* Reduce animation complexity on mobile */
    .activity-card {
        animation-duration: 0.3s;
    }
    
    .activity-cards__no-results-icon {
        animation: none; /* Disable pulse animation on mobile */
    }
    
    /* Better mobile image loading */
    .activity-card__poster {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
    
    /* Optimize overlay for mobile */
    .activity-card__overlay {
        background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.5) 50%, transparent 100%);
    }
    
    /* Long press feedback */
    .four-ws-tile.is-long-pressed {
        transform: scale(0.95);
        opacity: 0.9;
    }
    
    /* Better mobile font rendering */
    .four-ws-tile__title,
    .activity-card__title {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        text-rendering: optimizeLegibility;
    }
}

/* Extra small mobile devices */
@media (max-width: 480px) {
    .four-ws-tile {
        padding: 1rem 0.75rem;
    }
    
    .four-ws-tile__title {
        font-size: clamp(1.25rem, 7vw, 1.75rem);
    }
    
    .activity-cards__grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: 0.625rem;
    }
    
    .activity-card__title {
        font-size: 0.875rem;
    }
    
    .activity-card__category {
        font-size: 0.5625rem;
    }
    
    .four-ws-sticky-bar__button {
        font-size: 0.6875rem;
        padding: 0.45rem 0.875rem;
    }
    
    .activity-cards {
        padding: 1.25rem 0.5rem;
    }
}

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

@media (prefers-reduced-motion: reduce) {
    /* Scope reduced motion styles to Four W's filter system only */
    .four-ws-filter-system *,
    .four-ws-filter-system *::before,
    .four-ws-filter-system *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible styles - enhanced */
.four-ws-tile:focus-visible {
    outline: 3px solid rgba(255, 255, 255, 0.9);
    outline-offset: 2px;
    box-shadow: 0 0 0 5px rgba(255, 255, 255, 0.3);
}

.four-ws-sticky-bar__button:focus-visible {
    outline: 3px solid var(--brand-orange) !important;
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(235, 107, 64, 0.2);
}

/* Remove any default browser blue outlines */
.four-ws-sticky-bar__button:focus {
    outline: none;
}

.four-ws-sticky-bar__button.active:focus,
.four-ws-sticky-bar__button[aria-pressed="true"]:focus {
    outline: none;
    box-shadow: none;
}

.activity-card__link:focus-visible {
    outline: 3px solid var(--brand-orange);
    outline-offset: 2px;
    border-radius: 12px;
}

/* Ensure cards are accessible even when hidden during transitions */
.activity-card.is-hidden {
    display: none; /* Use display: none for better performance */
    opacity: 0;
    visibility: hidden;
}

/* Keyboard shortcut hint (shown on focus) */
.four-ws-sticky-bar__button:focus-visible::after {
    content: attr(data-shortcut);
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--brand-dark-blue);
    color: #fff;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.625rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-speed) var(--transition-easing);
}

.four-ws-sticky-bar__button:focus-visible::after {
    opacity: 1;
}

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

/* Ensure proper focus management */
.four-ws-filter-system:focus-within {
    outline: none;
}

/* Smooth scroll behavior - only for filter system */
.four-ws-filter-system {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    .four-ws-filter-system {
        scroll-behavior: auto;
    }
}

/* Prevent FOUC (Flash of Unstyled Content) */
.four-ws-filter-system.is-loading {
    opacity: 0;
    visibility: hidden;
}

.four-ws-filter-system:not(.is-loading) {
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease-in;
}

/* Loading state for images - only for lazy loaded images */
.activity-card__poster[data-src]:not(.is-loaded),
.activity-card__poster:not(.is-loaded) {
    background: linear-gradient(90deg, #e8e8e8 25%, #f0f0f0 50%, #e8e8e8 75%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s infinite;
}

.activity-card__poster.is-loaded {
    animation: none;
    background: none;
}

/* Improve contrast for better readability */
.activity-card__title {
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4), 0 1px 3px rgba(0, 0, 0, 0.3);
}

.activity-card__category {
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

/* Duplicate safeguard removed - see top of file for footer logo protection */

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .four-ws-tiles,
    .four-ws-sticky-bar,
    .four-ws-tiles__indicators {
        display: none;
    }
    
    .activity-cards {
        padding: 0;
        background: transparent;
    }
    
    .activity-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }
}