/* Custom Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes bounceSlow {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.animate-fade-in {
    animation: fadeIn 1s ease-out forwards;
}

.animate-fade-up {
    opacity: 0;
    animation: fadeUp 0.8s ease-out forwards;
}

.animate-fade-up.delay-100 {
    animation-delay: 0.2s;
}

.animate-fade-up.delay-200 {
    animation-delay: 0.4s;
}

.animate-bounce-slow {
    animation: bounceSlow 2s ease-in-out infinite;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f5f5f4;
}

::-webkit-scrollbar-thumb {
    background: #d6d3d1;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a29e;
}

/* Typography Enhancements */
.font-serif {
    font-family: 'Playfair Display', serif;
}

body {
    font-family: 'Inter', sans-serif;
}

/* Image Hover Effects */
.group:hover .group-hover\:scale-105 {
    transform: scale(1.05);
}

/* Navigation Transparency Effect */
.nav-scrolled {
    background-color: rgba(255, 255, 255, 0.95) !important;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Mobile Menu Animation */
#mobile-menu {
    transition: opacity 0.3s ease-in-out;
}

#mobile-menu.hidden {
    opacity: 0;
    pointer-events: none;
}

#mobile-menu:not(.hidden) {
    opacity: 1;
    pointer-events: auto;
}

/* Timeline Connector Line */
@media (min-width: 768px) {
    #story .grid::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 0;
        right: 0;
        height: 2px;
        background: linear-gradient(to right, transparent, #d97706, transparent);
        z-index: 0;
    }
}

/* Korean Text Support */
.kr-text {
    font-family: 'Noto Sans KR', sans-serif;
}

/* Gradient Text */
.text-gradient {
    background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Card Hover Lift */
.hover\:shadow-xl {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover\:shadow-xl:hover {
    transform: translateY(-5px);
}

/* Parallax Effect Classes */
.parallax-slow {
    will-change: transform;
}

/* Loading State */
.loading {
    opacity: 0;
    transition: opacity 0.5s ease-in;
}

.loaded {
    opacity: 1;