/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--dark-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.door {
    position: absolute;
    top: 0;
    width: 50%;
    height: 100%;
    background-color: var(--primary-color);
    transition: all 1s ease;
    z-index: 1;
}

.left-door {
    left: 0;
    transform-origin: left;
}

.right-door {
    right: 0;
    transform-origin: right;
}

.loader-text {
    color: var(--white);
    font-size: 1.5rem;
    z-index: 2;
    opacity: 0;
    animation: fadeIn 1s ease 0.5s forwards;
}

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

.preloader.hide {
    opacity: 0;
    pointer-events: none;
}

.preloader.hide .left-door {
    transform: perspective(1200px) rotateY(90deg);
}

.preloader.hide .right-door {
    transform: perspective(1200px) rotateY(-90deg);
}

/* Section Door Animation */
.section-door {
    position: relative;
}

.door-overlay {
    position: absolute;
    top: 0;
    width: 50%;
    height: 100%;
    background-color: var(--dark-color);
    z-index: 10;
    transition: all 1s ease;
}

.left-door-overlay {
    left: 0;
    transform-origin: left;
}

.right-door-overlay {
    right: 0;
    transform-origin: right;
}

.section-door.active .left-door-overlay {
    transform: perspective(1200px) rotateY(90deg);
}

.section-door.active .right-door-overlay {
    transform: perspective(1200px) rotateY(-90deg);
}

/* Fade In Animation */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s ease;
}

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

/* Delay for fade-in elements */
.fade-in.delay-1 {
    transition-delay: 0.2s;
}

.fade-in.delay-2 {
    transition-delay: 0.4s;
}

.fade-in.delay-3 {
    transition-delay: 0.6s;
}

.fade-in.delay-4 {
    transition-delay: 0.8s;
}

/* Stats Counter Animation */
@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stat-number.animated {
    animation: countUp 0.5s ease forwards;
}