/* ================================
   MODERN ANIMATIONS & ENHANCEMENTS
   Add-on CSS for BitForge/Sigmantic
   ================================ */

/* Page Load Animation */
body {
    animation: pageLoad 0.6s ease-out forwards;
}

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

/* Enhanced Header */
header {
    backdrop-filter: blur(12px);
    transition: all 0.3s ease;
}

header.scrolled {
    background-color: rgba(10, 10, 10, 0.95) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3), 0 1px 0 rgba(162, 89, 255, 0.2) !important;
}

/* Animated Nav Links */
.nav-links a {
    position: relative;
    transition: all 0.3s ease;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #a259ff, #c084fc);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* Logo Hover Effect */
.logo {
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo img {
    filter: drop-shadow(0 4px 8px rgba(162, 89, 255, 0.4));
    transition: all 0.3s ease;
}

.logo:hover img {
    filter: drop-shadow(0 8px 16px rgba(162, 89, 255, 0.6));
    transform: rotate(-3deg);
}

/* Enhanced Button Animations */
.btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.primary-btn {
    box-shadow: 0 4px 15px rgba(162, 89, 255, 0.3);
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(162, 89, 255, 0.4);
}

.secondary-btn {
    box-shadow: 0 4px 15px rgba(162, 89, 255, 0.2);
}

.secondary-btn:hover {
    background: rgba(162, 89, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(162, 89, 255, 0.3);
}

/* Hero Section Enhancements */
#hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero-content h1 {
    background-size: 200% auto;
    animation: gradientFlow 8s linear infinite;
}

@keyframes gradientFlow {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-image {
    transition: transform 0.3s ease;
}

.hero-image:hover {
    transform: scale(1.02);
}

/* Scroll-Triggered Animations */
.feature-card,
.artifact-card,
.partner-logo,
.pricing-card,
.founder-card,
.about-text,
.engagement-visual,
.stat-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card.visible,
.artifact-card.visible,
.partner-logo.visible,
.pricing-card.visible,
.founder-card.visible,
.about-text.visible,
.engagement-visual.visible,
.stat-item.visible,
#backed-by h2.visible,
#cursor-tool h2.visible,
#pricing h2.visible,
#about h2.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered stat animations */
.stat-item:nth-child(1).visible { transition-delay: 0.1s; }
.stat-item:nth-child(3).visible { transition-delay: 0.2s; }
.stat-item:nth-child(5).visible { transition-delay: 0.3s; }

/* Staggered Animation Delays */
.feature-card:nth-child(1).visible { transition-delay: 0.1s; }
.feature-card:nth-child(2).visible { transition-delay: 0.2s; }
.feature-card:nth-child(3).visible { transition-delay: 0.3s; }

.artifact-card:nth-child(1).visible { transition-delay: 0.1s; }
.artifact-card:nth-child(2).visible { transition-delay: 0.2s; }
.artifact-card:nth-child(3).visible { transition-delay: 0.3s; }

.partner-logo:nth-child(1).visible { transition-delay: 0.1s; }
.partner-logo:nth-child(2).visible { transition-delay: 0.2s; }

.pricing-card:nth-child(1).visible { transition-delay: 0.1s; }
.pricing-card:nth-child(2).visible { transition-delay: 0.2s; }
.pricing-card:nth-child(3).visible { transition-delay: 0.3s; }

/* Enhanced Card Hover Effects */
.feature-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card:hover {
    transform: translateY(-12px) !important;
    box-shadow: 0 20px 40px rgba(162, 89, 255, 0.3);
    border-color: #a259ff;
}

.artifact-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Partner Logo Effects */
.partner-logo img {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    filter: grayscale(30%);
}

.partner-logo img:hover {
    transform: scale(1.08);
    filter: grayscale(0%);
}


/* CTA Section Enhanced Animation */
#cta::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.05) 50%, transparent 70%);
    background-size: 200% 200%;
    animation: shimmer 3s linear infinite;
    z-index: 0;
}

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

#cta .container {
    position: relative;
    z-index: 1;
}

/* Responsive: Disable heavy animations on mobile */
@media (max-width: 768px) {
    .hero-content,
    .hero-code-demo {
        transform: none !important;
    }
}

/* Smooth scrolling for headings that appear */
#backed-by h2,
#cursor-tool h2,
#pricing h2,
#about h2 {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Engagement Visual */
.engagement-visual {
    transform: scale(0.95);
}

.engagement-visual.visible {
    transform: scale(1);
}

/* Ensure animations don't break layout */
* {
    will-change: auto;
}

.feature-card:hover,
.artifact-card:hover,
.partner-logo:hover {
    will-change: transform;
}