/* --- Custom Animations --- */

/* Initial states for intersection observer animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in {
    opacity: 0;
    transition: opacity 1s ease-out;
}

.fade-zoom {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-left {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-right {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

/* Stagger animation delay helpers */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }
.delay-500 { transition-delay: 500ms; }

/* Final states applied by JavaScript */
.is-visible {
    opacity: 1 !important;
    transform: translate(0) scale(1) !important;
}

/* Scroll indicator animation */
.scroll-indicator-line {
    animation: scrollDown 1.5s infinite linear;
}

@keyframes scrollDown {
    0% {
        transform: translateY(-100%);
    }
    100% {
        transform: translateY(100%);
    }
}

/* --- Luxury UI Utilities --- */

.glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.glass-nav {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.text-glow {
    text-shadow: 0 0 15px rgba(41, 211, 208, 0.5);
}

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(41, 211, 208, 0.3);
    border-color: rgba(41, 211, 208, 0.4);
}

.masonry-item {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.timeline-line-active {
    height: 100%;
    transition: height 1s ease-out;
}

/* Floating animation */
.float-anim {
    animation: floating 3s ease-in-out infinite;
}

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

/* Custom horizontal scroll hide */
.hide-scrollbar::-webkit-scrollbar {
    display: none;
}
.hide-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
}