/* ========================================
   DESIGN ENHANCEMENTS - Visual Polish Layer
   Version: 1.0.0
   Date: 2026-01-08
   
   Based on Playwright visual audit recommendations:
   - Animated counters for stats
   - Hover effects for all cards
   - Trust badges for newsletter
   - Micro-animations and polish
   
   DESIGN PRINCIPLES:
   - NO GRADIENTS (solid colors only)
   - High contrast (WCAG AA+)
   - Performance-optimized animations
   - Cross-viewport parity
   ======================================== */

/* ============ ANIMATED COUNTERS ============ */
/* Homepage hero stats get counting animation */
.hero-stat__value {
    font-variant-numeric: tabular-nums;
    transition: transform 0.3s ease;
}

.hero-stat__value[data-count] {
    animation: countUp 2s ease-out forwards;
}

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

/* Stats container subtle background enhancement */
.platform-hero__stats {
    position: relative;
    overflow: hidden;
}

.platform-hero__stats::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-primary-5, rgba(0, 102, 204, 0.05));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.platform-hero__stats:hover::before {
    opacity: 1;
}

/* Individual stat hover effect */
.hero-stat {
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    transition: transform 0.2s ease, background 0.2s ease;
}

.hero-stat:hover {
    transform: translateY(-2px);
    background: var(--color-primary-5, rgba(0, 102, 204, 0.05));
}

/* ============ CARD HOVER EFFECTS ============ */
/* Universal card hover - applies to all card types */
.tool-card,
.feature-card,
.cta-card,
.about-principles__card,
.post-card,
.entry-card,
.trending-card,
.article-card {
    transition: 
        transform 0.25s cubic-bezier(0.4, 0, 0.2, 1),
        box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.tool-card:hover,
.feature-card:hover,
.cta-card:hover,
.about-principles__card:hover,
.post-card:hover,
.entry-card:hover,
.trending-card:hover,
.article-card:hover {
    transform: translateY(-4px);
    box-shadow: 
        0 12px 24px -8px rgba(0, 0, 0, 0.1),
        0 4px 8px -4px rgba(0, 0, 0, 0.06);
}

/* Tool card specific enhancements */
.tool-card {
    position: relative;
    overflow: hidden;
}

.tool-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.tool-card:hover::after {
    transform: scaleX(1);
}

/* Tool card icon animation */
.tool-card__icon {
    transition: transform 0.3s ease;
}

.tool-card:hover .tool-card__icon {
    transform: scale(1.1);
}

/* Feature card icon pulse on hover */
.feature-card__icon {
    transition: transform 0.3s ease, background 0.3s ease;
}

.feature-card:hover .feature-card__icon {
    transform: scale(1.1);
    background: var(--color-primary);
}

.feature-card:hover .feature-card__icon svg {
    stroke: white;
}

/* ============ NEWSLETTER TRUST BADGES ============ */
.newsletter-card {
    position: relative;
}

/* Trust indicators below newsletter form */
.newsletter-trust {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-6);
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
}

.newsletter-trust__item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.newsletter-trust__item svg {
    width: 16px;
    height: 16px;
    color: var(--color-success, #10B981);
}

/* Newsletter button enhancement */
.newsletter-card__form button {
    position: relative;
    overflow: hidden;
}

.newsletter-card__form button::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.newsletter-card__form button:hover::before {
    transform: translateX(0);
}

/* ============ BUTTON MICRO-INTERACTIONS ============ */
.btn-primary,
.btn-outline,
.button--primary,
.button--outline {
    position: relative;
    overflow: hidden;
    transition: 
        transform 0.2s ease,
        box-shadow 0.2s ease,
        background 0.2s ease,
        border-color 0.2s ease;
}

.btn-primary:hover,
.button--primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.btn-primary:active,
.button--primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(0, 102, 204, 0.2);
}

.btn-outline:hover,
.button--outline:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Button arrow animation */
.btn-primary svg,
.btn-outline svg,
.button svg {
    transition: transform 0.2s ease;
}

.btn-primary:hover svg,
.btn-outline:hover svg,
.button:hover svg {
    transform: translateX(4px);
}

/* ============ SCROLL ANIMATIONS ============ */
/* Fade in up animation for sections */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: 
        opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animation delays */
.animate-on-scroll[data-delay="50"] { transition-delay: 50ms; }
.animate-on-scroll[data-delay="100"] { transition-delay: 100ms; }
.animate-on-scroll[data-delay="150"] { transition-delay: 150ms; }
.animate-on-scroll[data-delay="200"] { transition-delay: 200ms; }
.animate-on-scroll[data-delay="250"] { transition-delay: 250ms; }
.animate-on-scroll[data-delay="300"] { transition-delay: 300ms; }
.animate-on-scroll[data-delay="350"] { transition-delay: 350ms; }
.animate-on-scroll[data-delay="400"] { transition-delay: 400ms; }

/* ============ CATEGORY BADGE COLOR CODING ============ */
/* Blog/Platform category badges by topic */
.category-badge[data-category="ai"],
.category-badge[data-category="artificial-intelligence"],
.post-card__category[data-category="ai"] {
    background: #3B82F6;
    color: white;
}

.category-badge[data-category="finance"],
.category-badge[data-category="fintech"],
.post-card__category[data-category="finance"] {
    background: #10B981;
    color: white;
}

.category-badge[data-category="technology"],
.category-badge[data-category="tech"],
.post-card__category[data-category="technology"] {
    background: #8B5CF6;
    color: white;
}

.category-badge[data-category="crypto"],
.category-badge[data-category="cryptocurrency"],
.post-card__category[data-category="crypto"] {
    background: #F59E0B;
    color: white;
}

.category-badge[data-category="real-estate"],
.category-badge[data-category="realestate"],
.post-card__category[data-category="real-estate"] {
    background: #EF4444;
    color: white;
}

.category-badge[data-category="energy"],
.post-card__category[data-category="energy"] {
    background: #06B6D4;
    color: white;
}

/* ============ ICON MICRO-ANIMATIONS ============ */
/* Subtle icon animations on parent hover */
.tool-card__icon,
.feature-card__icon,
.about-principles__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

/* Icon bounce on card hover */
@keyframes iconBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.tool-card:hover .tool-card__icon,
.feature-card:hover .feature-card__icon,
.about-principles__card:hover .about-principles__icon {
    animation: iconBounce 0.5s ease;
}

/* ============ IMAGE HOVER EFFECTS ============ */
/* Card image zoom on hover */
.post-card__image img,
.entry-card__image img,
.trending-card__image img,
.article-card__image img {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.post-card:hover .post-card__image img,
.entry-card:hover .entry-card__image img,
.trending-card:hover .trending-card__image img,
.article-card:hover .article-card__image img {
    transform: scale(1.05);
}

/* Image container overflow hidden for zoom effect */
.post-card__image,
.entry-card__image,
.trending-card__image,
.article-card__image {
    overflow: hidden;
}

/* ============ HERO BACKGROUND ENHANCEMENT ============ */
/* Subtle pattern overlay for hero sections */
.platform-hero,
.page-hero {
    position: relative;
}

.platform-hero::before,
.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(
        circle at 1px 1px,
        var(--color-border) 1px,
        transparent 0
    );
    background-size: 40px 40px;
    opacity: 0.3;
    pointer-events: none;
}

/* ============ FOCUS STATES ============ */
/* Enhanced focus states for accessibility */
.btn-primary:focus-visible,
.btn-outline:focus-visible,
.button:focus-visible,
.tool-card a:focus-visible,
.feature-card a:focus-visible,
.post-card a:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ============ LOADING STATES ============ */
/* Skeleton loading for images - applied via JS when image is loading */
.post-card__image.is-loading,
.entry-card__image.is-loading,
.trending-card__image.is-loading {
    /* Solid color pulse to respect "NO GRADIENTS" principle */
    background-color: var(--color-surface);
    animation: skeleton 1.5s ease-in-out infinite;
}

@keyframes skeleton {
    0% {
        background-color: var(--color-surface);
    }
    50% {
        background-color: var(--color-border);
    }
    100% {
        background-color: var(--color-surface);
    }
}

/* ============ RESPONSIVE ADJUSTMENTS ============ */
/* Target devices with precise pointing capabilities (mouse) for hover effects */
@media (hover: hover) and (pointer: fine) {
    .tool-card:hover,
    .feature-card:hover,
    .post-card:hover {
        transform: translateY(-4px);
    }
}

/* Touch devices - reduce hover effects */
@media (max-width: 768px) {
    .tool-card:hover,
    .feature-card:hover,
    .post-card:hover {
        transform: translateY(-2px);
    }
    
    /* Smaller trust badges */
    .newsletter-trust {
        flex-wrap: wrap;
        gap: var(--space-3);
    }
    
    .newsletter-trust__item {
        font-size: var(--font-size-xs);
    }
}

@media (prefers-reduced-motion: reduce) {
    /* Respect user preferences for reduced motion */
    .animate-on-scroll,
    .tool-card,
    .feature-card,
    .btn-primary,
    .btn-outline,
    .button,
    .hero-stat__value,
    .post-card__image img {
        transition: none !important;
        animation: none !important;
    }
    
    .animate-on-scroll {
        opacity: 1;
        transform: none;
    }
}

/* ============ PRINT STYLES ============ */
@media print {
    .animate-on-scroll {
        opacity: 1 !important;
        transform: none !important;
    }
}