/* =====================================================
   PRELOADER BASE STYLES
   ===================================================== */
@keyframes fadeout-preloader {
  100% {
    opacity: 0;
    visibility: hidden;
  }
}

@keyframes pulse-preloader {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.4);
        opacity: 0.5;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

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

@keyframes loading-bars-preloader {
    0% {
        transform: scaleY(0.1);
    }
    50% {
        transform: scaleY(1);
        background: var(--bs-primary);
    }
    100% {
        transform: scaleY(0.1);
        background: transparent;
    }
}

/* Preloader visibility on page load */
html:not(.internal-page) body.page-loaded .preloader:not(.persist),
html body.page-loaded .preloader:not(.persist) {
    /* visibility: hidden;
    opacity: 0;
    transition: all 0.2s 0.4s ease-out; */
    animation: fadeout-preloader 1s forwards;
}

/* Preloader overlay */
.preloader {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100vh;
    z-index: 999; /* must stay under 1000 so that fixed header elements stay on top. */
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px); /* Safari support */
}

/* =====================================================
   PULSE EFFECT
   ===================================================== */
.preloader.pulse .preloader-elements {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.preloader.pulse .preloader-icon img {
    max-height: 6rem;
    max-width: 8rem;
}

.preloader.pulse .loading-bar {
    width: 8px;
    height: 30px;
    background: #fff;
    display: inline-block;
    transform-origin: center center;
    margin: 0 2px;
    box-shadow: 5px 5px 10px inset rgba(0, 0, 0, 0.1);
    animation: loading-bars-preloader 1s linear infinite;
    border-radius: 3px;
}

.preloader.pulse .bar1 { animation-delay: 0.1s; }
.preloader.pulse .bar2 { animation-delay: 0.2s; }
.preloader.pulse .bar3 { animation-delay: 0.3s; }
.preloader.pulse .bar4 { animation-delay: 0.4s; }
.preloader.pulse .bar5 { animation-delay: 0.5s; }

/* =====================================================
   ROTATE EFFECT
   ===================================================== */
.preloader.rotate .preloader-elements {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.preloader.rotate .preloader-icon {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 1501;
}

.preloader.rotate .preloader-icon img {
    max-height: 4rem;
    max-width: 4rem;
    animation: pulse-preloader 1.5s infinite ease-in-out;
    transform-origin: center center;
}

/* Preloader animation base */
.preloader.rotate .preloader-animation {
    display: block;
    position: relative;
    transform-origin: center;
    width: 10rem;
    height: 10rem;
    z-index: 1500;
    border: 3px solid transparent;
    border-left-color: rgba(var(--bs-primary-rgb), 0.9);
    border-right-color: rgba(var(--bs-primary-rgb), 0.9);
    border-radius: 50%;
    animation: spin-preloader 6s linear infinite;
}

/* Inner spinning ring */
.preloader.rotate .preloader-animation::before {
    content: "";
    position: absolute;
    background-color: rgba(255, 255, 255, 0.5);
    top: 3px;
    left: 3px;
    right: 3px;
    bottom: 3px;
    border: 3px solid rgba(0, 0, 0, 0.15);
    border-top-color: rgba(var(--bs-secondary-rgb), 0.9);
    border-radius: 50%;
    animation: spin-preloader 3s linear infinite;
}