/* ============================================
   VTA Group - Animations & Effects
   ============================================ */

@keyframes heroMotionSweep {
    0%, 100% { transform: translateX(-34%); opacity: 0.32; }
    50% { transform: translateX(34%); opacity: 0.58; }
}

@keyframes heroTextReveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---- Shine effect on images ---- */
.services__image::before,
.fleet__image::before,
.news__image::before {
    content: '';
    position: absolute;
    top: 0;
    left: -75%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        to right,
        rgba(255,255,255,0) 0%,
        rgba(255,255,255,0.3) 100%
    );
    transform: skewX(-25deg);
    z-index: 1;
    transition: 0.6s;
}

.services__item:hover .services__image::before,
.fleet__item:hover .fleet__image::before,
.news__item:hover .news__image::before {
    left: 125%;
}

.services__image,
.fleet__image,
.news__image {
    position: relative;
    overflow: hidden;
}

/* ---- Counter animation ---- */
@keyframes countUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

/* ---- Fade in up for sections ---- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---- Float animation for badge ---- */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.about__image-badge {
    animation: float 3s ease-in-out infinite;
}

/* ---- Loading placeholder for images ---- */
@keyframes shimmer {
    0% { background-position: -200px 0; }
    100% { background-position: calc(200px + 100%) 0; }
}

img[src=""],
img:not([src]) {
    background: linear-gradient(90deg, var(--color-lighter) 25%, rgba(145, 137, 130, 0.24) 50%, var(--color-lighter) 75%);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite;
}

/* ---- Smooth underline hover for nav ---- */
.main-nav__item > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.main-nav__item > a {
    position: relative;
}

.main-nav__item > a:hover::after,
.main-nav__item.active > a::after {
    width: 100%;
}

/* ---- Footer link hover ---- */
.footer__menu li a {
    position: relative;
    transition: all 0.3s ease;
}

/* ---- Button ripple effect ---- */
.btn {
    position: relative;
    overflow: hidden;
}

.btn::after {
    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 ease, height 0.6s ease;
}

.btn:active::after {
    width: 300px;
    height: 300px;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .hero-slider__content--reveal > * {
        opacity: 1;
        transform: none;
        animation: none !important;
    }

    .hero-slider__motion {
        display: none;
    }

    .impact-story__media {
        background-attachment: scroll;
    }
}