/*
 * Engagement Components CSS
 * Infinite scroll, floating share, page transitions, continue reading
 */

/* === INFINITE SCROLL LOADER === */
.infinite-loader {
    display: flex;
    justify-content: center;
    padding: var(--nb-space-8) 0;
}
.loader-dots {
    display: flex;
    gap: 6px;
}
.loader-dots span {
    width: 8px;
    height: 8px;
    background: var(--nb-gray-600);
    border-radius: 50%;
    animation: loaderPulse 1.4s infinite ease-in-out both;
}
.loader-dots span:nth-child(1) { animation-delay: -0.32s; }
.loader-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes loaderPulse {
    0%, 80%, 100% { transform: scale(0); opacity: 0.5; }
    40% { transform: scale(1); opacity: 1; }
}

.scroll-sentinel {
    height: 1px;
    width: 100%;
}

/* === CONTINUE READING === */
.continue-reading {
    margin: var(--nb-space-12) 0;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.continue-reading.is-visible {
    opacity: 1;
    transform: translateY(0);
}
.continue-reading-label {
    font-size: var(--nb-text-sm);
    font-weight: var(--nb-weight-bold);
    text-transform: uppercase;
    letter-spacing: var(--nb-tracking-wider);
    color: var(--nb-white);
    margin-bottom: var(--nb-space-6);
    display: flex;
    align-items: center;
    gap: var(--nb-space-3);
}
.continue-reading-label::after {
    content: '';
    height: 1px;
    flex-grow: 1;
    background: linear-gradient(90deg, rgba(255,255,255,0.1), transparent);
}
.continue-reading-card {
    display: flex;
    flex-direction: column;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: var(--nb-radius-xl);
    overflow: hidden;
    text-decoration: none;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease, box-shadow 0.4s ease;
    box-shadow: 0 4px 30px rgba(0,0,0,0.1);
}
@media (min-width: 640px) {
    .continue-reading-card {
        flex-direction: row;
        align-items: center;
    }
}
.continue-reading-card:hover {
    border-color: rgba(255,255,255,0.15);
    transform: translateY(-4px) scale(1.01);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}
.continue-reading-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}
@media (min-width: 640px) {
    .continue-reading-img {
        width: 240px;
        height: 100%;
        min-height: 160px;
    }
}
.continue-reading-content {
    flex: 1;
    padding: var(--nb-space-6);
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.continue-reading-content h3 {
    font-family: var(--nb-font-display);
    font-size: var(--nb-text-xl);
    color: var(--nb-white);
    margin-bottom: var(--nb-space-3);
    line-height: var(--nb-leading-tight);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.continue-reading-content p {
    font-size: var(--nb-text-sm);
    color: var(--nb-text-muted);
    margin: 0 !important;
    line-height: var(--nb-leading-relaxed);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.continue-reading-arrow {
    display: none;
}

/* === FLOATING MOBILE SHARE BAR === */
.floating-share-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: var(--nb-z-sticky);
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--nb-border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
    padding: 0;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}
.floating-share-bar.is-visible {
    transform: translateY(0);
}

.fsb-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    padding: 14px;
    color: #fff;
    border: none;
    background: none;
    cursor: pointer;
    transition: background 0.2s ease;
    text-decoration: none;
    border-right: 1px solid rgba(255,255,255,0.08);
}
.fsb-btn:last-child {
    border-right: none;
}
.fsb-btn:hover, .fsb-btn:active {
    color: #fff;
}
.fsb-whatsapp:hover { background: rgba(37, 211, 102, 0.2); }
.fsb-facebook:hover { background: rgba(59, 89, 152, 0.2); }
.fsb-twitter:hover { background: rgba(255, 255, 255, 0.1); }
.fsb-native:hover { background: rgba(255, 255, 255, 0.1); }

/* Add bottom padding to body when share bar is visible on mobile */
@media (max-width: 768px) {
    body.has-floating-share {
        padding-bottom: 52px;
    }
}

/* Hide share bar on desktop */
@media (min-width: 769px) {
    .floating-share-bar {
        display: none !important;
    }
}

/* === PAGE TRANSITION OVERLAY === */
.page-transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--nb-black, #000);
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}
.page-transition-overlay.is-active {
    opacity: 1;
    pointer-events: auto;
}

/* View Transitions API support */
@view-transition {
    navigation: auto;
}

::view-transition-old(root) {
    animation: fadeOut 0.2s ease;
}

::view-transition-new(root) {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* === APP BANNER IN-CONTENT === */
.nb-app-banner {
    display: block;
    width: 100%;
    clear: both;
    margin: var(--nb-space-8) 0;
    font-family: var(--nb-font-display);
}

/* --- STYLE: CARD (Compact) --- */
.nb-ab-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--nb-radius-lg);
    padding: 16px 20px;
    transition: border-color var(--nb-duration) var(--nb-ease), box-shadow var(--nb-duration) var(--nb-ease);
}
.nb-ab-card:hover {
    border-color: rgba(255,255,255,0.15);
    box-shadow: 0 4px 24px rgba(0,0,0,0.2);
}
.nb-ab-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    object-fit: cover;
    flex-shrink: 0;
    background: rgba(255,255,255,0.06);
}
.nb-ab-icon--empty {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--nb-text-muted);
}
.nb-ab-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.nb-ab-name {
    color: var(--nb-white);
    font-size: var(--nb-text-sm);
    font-weight: 600;
}
.nb-ab-desc {
    color: var(--nb-text-muted);
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.nb-ab-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    margin-top: 2px;
}
.nb-ab-stars {
    color: #FFB800;
    letter-spacing: -1px;
}
.nb-ab-rating-num {
    color: var(--nb-text-tertiary);
}
.nb-ab-free {
    color: var(--nb-text-muted);
}
.nb-ab-cta {
    flex-shrink: 0;
    background: var(--nb-white);
    color: var(--nb-black);
    font-size: 12px;
    font-weight: 700;
    padding: 8px 20px;
    border-radius: var(--nb-radius-full);
    text-decoration: none;
    letter-spacing: 0.3px;
    transition: background var(--nb-duration-fast) var(--nb-ease), transform var(--nb-duration-fast) var(--nb-ease);
}
.nb-ab-cta:hover {
    background: var(--nb-gray-200);
    color: var(--nb-black);
    transform: scale(1.04);
}
@media (max-width: 500px) {
    .nb-ab-card {
        flex-wrap: wrap;
    }
    .nb-ab-cta {
        width: 100%;
        text-align: center;
        margin-top: 4px;
    }
}

/* --- STYLE: BANNER FULL --- */
.nb-ab-full {
    position: relative;
    border-radius: var(--nb-radius-xl);
    overflow: hidden;
    background: linear-gradient(135deg, rgba(20,20,30,1) 0%, rgba(10,10,15,1) 100%);
    border: 1px solid rgba(255,255,255,0.06);
}
.nb-ab-full-glow {
    position: absolute;
    top: -40%;
    right: -20%;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(100,120,255,0.12) 0%, transparent 70%);
    pointer-events: none;
}
.nb-ab-full-inner {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 28px 28px;
}
.nb-ab-full-left {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
    min-width: 0;
}
.nb-ab-full-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}
.nb-ab-full-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}
.nb-ab-full-text strong {
    color: var(--nb-white);
    font-size: var(--nb-text-lg);
    font-weight: 700;
    line-height: var(--nb-leading-tight);
}
.nb-ab-full-text span {
    color: var(--nb-text-tertiary);
    font-size: var(--nb-text-sm);
    line-height: 1.4;
}
.nb-ab-full-right {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}
.nb-ab-full-cta {
    background: var(--nb-white);
    color: var(--nb-black);
    font-size: 13px;
    font-weight: 700;
    padding: 10px 28px;
    border-radius: var(--nb-radius-full);
    text-decoration: none;
    letter-spacing: 0.3px;
    transition: background var(--nb-duration-fast) var(--nb-ease), transform var(--nb-duration-fast) var(--nb-ease);
    white-space: nowrap;
}
.nb-ab-full-cta:hover {
    background: var(--nb-gray-200);
    color: var(--nb-black);
    transform: scale(1.04);
}
.nb-ab-full-meta {
    color: var(--nb-text-muted);
    font-size: 11px;
}
.nb-ab-full-badges {
    display: flex;
    gap: 12px;
    padding: 0 28px 20px;
    position: relative;
}
.nb-ab-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--nb-text-tertiary);
    text-decoration: none;
    padding: 4px 10px;
    border-radius: var(--nb-radius-sm);
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.06);
    transition: background var(--nb-duration-fast) var(--nb-ease);
}
.nb-ab-badge:hover {
    background: rgba(255,255,255,0.08);
    color: var(--nb-white);
}
@media (max-width: 640px) {
    .nb-ab-full-inner {
        flex-direction: column;
        text-align: center;
        padding: 24px 20px 16px;
    }
    .nb-ab-full-left {
        flex-direction: column;
    }
    .nb-ab-full-badges {
        justify-content: center;
        padding: 0 20px 20px;
    }
}

/* --- STYLE: NATIVE --- */
.nb-ab-native {
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--nb-radius-md);
    padding: 16px;
}
.nb-ab-native-tag {
    display: inline-block;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: var(--nb-tracking-wider);
    color: var(--nb-text-muted);
    margin-bottom: 10px;
}
.nb-ab-native-row {
    display: flex;
    align-items: center;
    gap: 12px;
}
.nb-ab-native-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    object-fit: cover;
    flex-shrink: 0;
}
.nb-ab-native-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.nb-ab-native-info strong {
    color: var(--nb-white);
    font-size: var(--nb-text-sm);
    font-weight: 600;
}
.nb-ab-native-info span {
    color: var(--nb-text-muted);
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.nb-ab-native-btn {
    flex-shrink: 0;
    color: var(--nb-white);
    font-size: 12px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: var(--nb-radius-full);
    border: 1px solid rgba(255,255,255,0.2);
    text-decoration: none;
    transition: background var(--nb-duration-fast) var(--nb-ease), border-color var(--nb-duration-fast) var(--nb-ease);
}
.nb-ab-native-btn:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.35);
    color: var(--nb-white);
}

/* === BUTTON STYLES (Global) === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--nb-radius-md);
    font-weight: var(--nb-weight-semibold);
    font-size: var(--nb-text-sm);
    cursor: pointer;
    border: none;
    transition: all var(--nb-duration) var(--nb-ease);
    text-decoration: none;
}
.btn-primary {
    background: var(--nb-white);
    color: var(--nb-black);
}
.btn-primary:hover {
    background: var(--nb-gray-200);
    transform: translateY(-1px);
}