/* Scroll arrow animation */
.scroll-arrow {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
}

.arrow {
    font-size: 32px;
    animation: bounce 2s infinite;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.arrow-text {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 8px;
    font-weight: 300;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: all 0.5s ease;
}

.scroll-arrow:hover .arrow {
    animation: none;
    transform: translateY(5px);
    transition: transform 0.3s ease;
}

.scroll-arrow.visible .arrow-text {
    opacity: 1;
    visibility: visible;
}

/* Bounce animation */
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-30px);
    }
    60% {
        transform: translateY(-15px);
    }
}

/* Fade in animation */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Slide in animation */
.slide-in-left {
    opacity: 0;
    transform: translateX(-100px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-right {
    opacity: 0;
    transform: translateX(100px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-left.visible,
.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Loading spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}