/* ============================================
   REVVED UP CARS - UX ENHANCEMENTS
   Scroll-reveal animations, hover micro-interactions,
   focus states, and modern visual polish
   Version: 1.0.0
   ============================================ */

/* ============================================
   SCROLL-REVEAL ANIMATIONS
   Elements start hidden and animate in when
   they enter the viewport via IntersectionObserver
   ============================================ */

.reveal-on-scroll {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal-on-scroll.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children inside article grids */
.article-grid .reveal-on-scroll:nth-child(2) { transition-delay: 0.08s; }
.article-grid .reveal-on-scroll:nth-child(3) { transition-delay: 0.16s; }
.article-grid .reveal-on-scroll:nth-child(4) { transition-delay: 0.24s; }
.article-grid .reveal-on-scroll:nth-child(5) { transition-delay: 0.32s; }
.article-grid .reveal-on-scroll:nth-child(6) { transition-delay: 0.40s; }

.related-grid .reveal-on-scroll:nth-child(2) { transition-delay: 0.08s; }
.related-grid .reveal-on-scroll:nth-child(3) { transition-delay: 0.16s; }
.related-grid .reveal-on-scroll:nth-child(4) { transition-delay: 0.24s; }

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .reveal-on-scroll {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ============================================
   CARD HOVER MICRO-INTERACTIONS
   Subtle lift and shadow on article cards
   ============================================ */

.article-card,
.hero-card,
.related-card,
.popular-article-card {
    transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
                box-shadow 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.article-card:hover,
.related-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}

.hero-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.15);
}

.popular-article-card:hover {
    transform: translateX(4px);
}

/* Card image zoom on hover */
.article-card-image img,
.hero-card-image img,
.related-image img {
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.article-card:hover .article-card-image img,
.hero-card:hover .hero-card-image img,
.related-card:hover .related-image img {
    transform: scale(1.04);
}

/* ============================================
   FOCUS STATES - ACCESSIBILITY
   Visible focus outlines for keyboard users
   ============================================ */

/* Global focus-visible ring */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid #C5D631;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Remove default outlines only when NOT focus-visible */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible) {
    outline: none;
}

/* ============================================
   POLL WIDGET ENHANCEMENTS
   ============================================ */

.poll-option.selected {
    border-color: #C5D631;
    background: rgba(197, 214, 49, 0.08);
}

.poll-option.voted .poll-option-bar {
    transition: width 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.poll-option.voted .poll-option-percentage {
    opacity: 1;
}

/* ============================================
   BUTTON & CTA ENHANCEMENTS
   ============================================ */

/* Section "View All" links */
.section-link {
    transition: color 0.25s ease, gap 0.25s ease;
}

.section-link:hover {
    color: #C5D631;
}

.section-link:hover i,
.section-link:hover svg {
    transform: translateX(3px);
    transition: transform 0.25s ease;
}

/* Editor's Pick CTA */
.editors-pick-cta {
    transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.editors-pick-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(197, 214, 49, 0.3);
}

/* Back to Top button */
.back-to-top {
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background 0.25s ease;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: #C5D631;
    color: #1a1f1a;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(197, 214, 49, 0.3);
}

/* ============================================
   NEWSLETTER FORM POLISH
   ============================================ */

.newsletter-form input[type="email"]:focus {
    border-color: #C5D631;
    box-shadow: 0 0 0 3px rgba(197, 214, 49, 0.15);
}

.newsletter-form button:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(197, 214, 49, 0.3);
}

/* ============================================
   SHARE BUTTONS ENHANCEMENTS
   ============================================ */

.share-btn,
.social-share-btn {
    transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.share-btn:hover,
.social-share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Copy button feedback */
.share-copy.copied::after,
.social-share-btn.copy.copied::after {
    content: 'Copied!';
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: #1a1f1a;
    color: #fff;
    font-size: 11px;
    padding: 4px 10px;
    border-radius: 4px;
    white-space: nowrap;
    pointer-events: none;
    animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(4px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ============================================
   SIDEBAR WIDGET ENHANCEMENTS
   ============================================ */

.sidebar-widget {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.widget-newsletter:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

/* Category list items */
.category-item {
    transition: transform 0.2s ease, color 0.2s ease;
}

.category-item:hover {
    transform: translateX(4px);
    color: #C5D631;
}

/* ============================================
   HERO CAROUSEL TRANSITIONS
   ============================================ */

.hero-carousel-track {
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.hero-carousel-btn {
    transition: background 0.25s ease, transform 0.25s ease, opacity 0.25s ease;
}

.hero-carousel-btn:hover {
    transform: scale(1.1);
}

.hero-indicator {
    transition: background 0.3s ease, width 0.3s ease;
}

.hero-indicator.active {
    width: 32px;
    border-radius: 4px;
}

/* ============================================
   READING PROGRESS BAR GLOW
   ============================================ */

.reading-progress {
    box-shadow: 0 0 8px rgba(197, 214, 49, 0.4);
}

/* ============================================
   TTS & BOOKMARK BUTTON STATES
   ============================================ */

.tts-button,
.bookmark-btn {
    transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.tts-button:hover,
.bookmark-btn:hover {
    color: #C5D631;
    transform: scale(1.05);
}

.tts-button.active {
    color: #C5D631;
    background: rgba(197, 214, 49, 0.1);
}

.bookmark-btn.bookmarked svg {
    fill: #C5D631;
    stroke: #C5D631;
}

/* ============================================
   TICKER ENHANCEMENTS
   ============================================ */

.ticker-label {
    animation: pulse 2s ease-in-out infinite;
}

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

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
    .ticker-label {
        animation: none;
    }
    .hero-carousel-track {
        transition: none;
    }
    .article-card:hover,
    .hero-card:hover,
    .related-card:hover {
        transform: none;
    }
    .article-card-image img,
    .hero-card-image img,
    .related-image img {
        transition: none;
    }
    .article-card:hover .article-card-image img,
    .hero-card:hover .hero-card-image img,
    .related-card:hover .related-image img {
        transform: none;
    }
}

/* ============================================
   POST NAVIGATION HOVER EFFECTS
   ============================================ */

.nav-prev,
.nav-next {
    transition: transform 0.25s ease, background 0.25s ease;
}

.nav-prev:hover {
    transform: translateX(-4px);
}

.nav-next:hover {
    transform: translateX(4px);
}

/* ============================================
   SMOOTH PAGE TRANSITIONS
   ============================================ */

.site-content {
    animation: pageEnter 0.4s ease;
}

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

@media (prefers-reduced-motion: reduce) {
    .site-content {
        animation: none;
    }
}