/* DiscussionSpot9 - Advanced Ad Optimization Styles */
/* Version 2.0 - October 2025 */

:root {
    --ad-primary: #667eea;
    --ad-secondary: #764ba2;
    --ad-accent: #ff4500;
    --ad-bg: #ffffff;
    --ad-border: #e1e8ed;
    --ad-text: #657786;
}

/* ====================================
   1. GLOBAL AD CONTAINER STYLES
   ==================================== */

.ad-container {
    position: relative;
    margin: 1.5rem 0;
    animation: adFadeIn 0.6s ease-out;
}

.ad-wrapper {
    background: var(--ad-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.ad-wrapper:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

/* ====================================
   2. AD LABELS & BADGES
   ==================================== */

.ad-label,
.ad-badge {
    font-size: 0.7rem;
    color: var(--ad-text);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.ad-label-modern {
    background: linear-gradient(135deg, var(--ad-primary) 0%, var(--ad-secondary) 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 8px 8px 0 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ad-label-modern i {
    color: #ffd700;
}

/* ====================================
   3. STICKY AD IMPLEMENTATIONS
   ==================================== */

.sticky-ad-wrapper {
    position: sticky;
    top: 80px;
    z-index: 900;
    margin-bottom: 1.5rem;
}

.sticky-ad-enhanced {
    position: relative;
    top: 0;
    z-index: 1;
    margin-top: 0;
    margin-bottom: 1.5rem;
}

/* Multiple Sticky Positions */
.sticky-top-80 { top: 80px; }
.sticky-top-150 { top: 150px; }
.sticky-top-220 { top: 220px; }
.sticky-top-400 { top: 400px; }

/* ====================================
   4. IN-FEED AD STYLES
   ==================================== */

.infeed-ad-modern {
    margin: 2.5rem 0;
    animation: adFadeInScale 0.7s ease-out;
}

.infeed-ad-modern .ad-card {
    background: var(--ad-bg);
    border: 1px solid var(--ad-border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.infeed-ad-modern .ad-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

/* Native Ad Styling */
.ad-native {
    border: 1px solid var(--ad-border);
    border-radius: 12px;
    padding: 1.25rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

/* ====================================
   5. FLOATING/FIXED ADS
   ==================================== */

.floating-bottom-ad {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    padding: 0.75rem;
    animation: slideUpFromBottom 0.5s ease-out;
}

.floating-top-ad {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    padding: 0.75rem;
    animation: slideDownFromTop 0.5s ease-out;
}

/* ====================================
   6. PREMIUM AD PLACEMENTS
   ==================================== */

.premium-ad-container {
    margin: 2.5rem 0;
    position: relative;
}

.premium-ad-wrapper {
    background: linear-gradient(135deg, var(--ad-primary) 0%, var(--ad-secondary) 100%);
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.3);
    position: relative;
    overflow: hidden;
}

.premium-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    color: white;
    font-weight: 700;
    font-size: 0.85rem;
}

/* ====================================
   7. SIDEBAR AD OPTIMIZATIONS
   ==================================== */

.sidebar-ad-sticky {
    position: sticky;
    top: 80px;
    z-index: 100;
}

.sidebar-ad-card {
    background: white;
    border: 1px solid var(--ad-border);
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

/* ====================================
   8. AD CLOSE BUTTONS
   ==================================== */

.ad-close-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: var(--ad-accent);
    color: white;
    border: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.8rem;
    z-index: 10;
    transition: all 0.2s ease;
}

.ad-close-btn:hover {
    background: #e03d00;
    transform: scale(1.1);
}

.ad-close-btn:active {
    transform: scale(0.95);
}

/* ====================================
   9. RESPONSIVE AD CONTAINERS
   ==================================== */

.ad-responsive {
    width: 100%;
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ad-square {
    width: 300px;
    height: 250px;
}

.ad-leaderboard {
    width: 728px;
    height: 90px;
}

.ad-rectangle {
    width: 300px;
    height: 250px;
}

.ad-skyscraper {
    width: 160px;
    height: 600px;
}

/* ====================================
   10. AD LOADING STATES
   ==================================== */

.ad-loading {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    min-height: 250px;
    border-radius: 8px;
}

.ad-skeleton {
    background: #f0f0f0;
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}

.ad-skeleton::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
    animation: skeleton-loading 1.5s infinite;
}

/* ====================================
   11. AD VIEWABILITY OPTIMIZATION
   ==================================== */

.ad-lazy-load {
    min-height: 250px;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ad-lazy-load::before {
    content: 'Advertisement Loading...';
    color: var(--ad-text);
    font-size: 0.85rem;
}

/* Intersection Observer Support */
.ad-intersecting {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.6s ease-out;
}

.ad-not-intersecting {
    opacity: 0;
    transform: translateY(20px);
}

/* ====================================
   12. AD ANIMATIONS
   ==================================== */

@keyframes adFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

@keyframes slideUpFromBottom {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

@keyframes slideDownFromTop {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

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

@keyframes skeleton-loading {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* ====================================
   13. MOBILE OPTIMIZATIONS
   ==================================== */

@media (max-width: 991px) {
    /* Disable sticky on tablets */
    .sticky-ad-wrapper,
    .sticky-ad-enhanced,
    .sidebar-ad-sticky {
        position: relative;
        top: 0;
    }

    /* Show floating ads */
    .floating-bottom-ad {
        display: block;
    }

    /* Reduce ad sizes */
    .ad-responsive {
        min-height: 200px;
    }

    /* Adjust premium ad padding */
    .premium-ad-wrapper {
        padding: 1rem;
    }
}

@media (max-width: 768px) {
    /* Reduce margins */
    .ad-container,
    .infeed-ad-modern,
    .premium-ad-container {
        margin: 1.5rem 0;
    }

    /* Smaller ad labels */
    .ad-label-modern {
        font-size: 0.65rem;
        padding: 0.4rem 0.8rem;
    }

    /* Compact close buttons */
    .ad-close-btn {
        width: 24px;
        height: 24px;
        font-size: 0.7rem;
    }
}

@media (max-width: 576px) {
    /* Hide certain ads on very small screens */
    .ad-hide-mobile {
        display: none;
    }

    /* Full width ads */
    .ad-responsive {
        width: 100%;
        min-height: 150px;
    }

    /* Adjust floating ad */
    .floating-bottom-ad {
        padding: 0.5rem;
    }

    /* Compact premium ads */
    .premium-ad-wrapper {
        padding: 0.75rem;
    }

    .premium-ad-content {
        min-height: 150px;
    }
}

/* ====================================
   14. DARK MODE SUPPORT
   ==================================== */

@media (prefers-color-scheme: dark) {
    :root {
        --ad-bg: #1a1a1b;
        --ad-border: #343536;
        --ad-text: #d7dadc;
    }

    .ad-wrapper,
    .sidebar-ad-card,
    .infeed-ad-modern .ad-card {
        background: var(--ad-bg);
        border-color: var(--ad-border);
    }

    .ad-loading {
        background: linear-gradient(90deg, #2a2a2b 25%, #3a3a3b 50%, #2a2a2b 75%);
        background-size: 200% 100%;
    }

    .floating-bottom-ad,
    .floating-top-ad {
        background: var(--ad-bg);
        border-color: var(--ad-border);
    }
}

/* ====================================
   15. ACCESSIBILITY
   ==================================== */

/* Screen reader only */
.ad-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;
}

/* Focus states */
.ad-close-btn:focus {
    outline: 2px solid var(--ad-accent);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .ad-container,
    .sticky-ad-enhanced,
    .infeed-ad-modern,
    .floating-bottom-ad,
    .premium-ad-container {
        animation: none;
    }

    .ad-wrapper,
    .ad-card {
        transition: none;
    }
}

/* ====================================
   16. PRINT STYLES
   ==================================== */

@media print {
    .ad-container,
    .sticky-ad-enhanced,
    .infeed-ad-modern,
    .floating-bottom-ad,
    .floating-top-ad,
    .premium-ad-container,
    .sidebar-ad-sticky {
        display: none !important;
    }
}

/* ====================================
   17. AD BLOCKER DETECTION FALLBACK
   ==================================== */

.adsbygoogle[data-ad-status="unfilled"] {
    min-height: 0 !important;
}

.ad-fallback {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    color: var(--ad-text);
}

.ad-fallback h4 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    color: var(--ad-primary);
}

.ad-fallback p {
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* ====================================
   18. PERFORMANCE OPTIMIZATIONS
   ==================================== */

/* GPU Acceleration */
.ad-wrapper,
.sticky-ad-enhanced,
.floating-bottom-ad {
    transform: translateZ(0);
    will-change: transform;
}

/* Content visibility */
.ad-offscreen {
    content-visibility: auto;
}

/* Lazy load images */
.ad-image {
    loading: lazy;
}

/* ====================================
   19. UTILITY CLASSES
   ==================================== */

.ad-mt-1 { margin-top: 0.5rem; }
.ad-mt-2 { margin-top: 1rem; }
.ad-mt-3 { margin-top: 1.5rem; }
.ad-mt-4 { margin-top: 2rem; }

.ad-mb-1 { margin-bottom: 0.5rem; }
.ad-mb-2 { margin-bottom: 1rem; }
.ad-mb-3 { margin-bottom: 1.5rem; }
.ad-mb-4 { margin-bottom: 2rem; }

.ad-p-1 { padding: 0.5rem; }
.ad-p-2 { padding: 1rem; }
.ad-p-3 { padding: 1.5rem; }
.ad-p-4 { padding: 2rem; }

/* Spacing utilities */
.ad-spacing-normal { margin: 1.5rem 0; }
.ad-spacing-large { margin: 2.5rem 0; }
.ad-spacing-small { margin: 1rem 0; }

/* Border radius */
.ad-rounded-sm { border-radius: 8px; }
.ad-rounded-md { border-radius: 12px; }
.ad-rounded-lg { border-radius: 16px; }
.ad-rounded-xl { border-radius: 20px; }

/* ====================================
   END OF AD OPTIMIZATION STYLES
   ==================================== */