/* =========================================================
   ENGLISH FAN — Premium Preloader
   File: public/assets/css/custom/preloader.css
   ========================================================= */

.ef-preloader {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background:
        radial-gradient(
            circle at 50% 44%,
            rgba(46, 107, 230, 0.075) 0%,
            rgba(46, 107, 230, 0.025) 24%,
            transparent 48%
        ),
        radial-gradient(
            circle at 52% 58%,
            rgba(225, 48, 58, 0.035) 0%,
            transparent 35%
        ),
        #ffffff;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition:
        opacity 0.55s ease,
        visibility 0.55s ease;
}

/* Soft background details */
.ef-preloader::before,
.ef-preloader::after {
    content: "";
    position: absolute;
    width: 310px;
    height: 310px;
    border-radius: 50%;
    pointer-events: none;
    filter: blur(75px);
    opacity: 0.13;
}

.ef-preloader::before {
    top: -190px;
    left: -130px;
    background: #2864dc;
}

.ef-preloader::after {
    right: -150px;
    bottom: -200px;
    background: #e53946;
}

/* Main loader */
.ef-loader {
    position: relative;
    z-index: 1;
    width: 300px;
    min-height: 285px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    isolation: isolate;
}

/* Rotating orbit rings */
.ef-loader__orbit {
    position: absolute;
    top: 83px;
    left: 50%;
    width: 174px;
    height: 174px;
    border-radius: 50%;
    pointer-events: none;
    transform-origin: center;
}

/* Blue orbit */
.ef-loader__orbit--blue {
    border: 1.5px solid rgba(40, 100, 220, 0.25);
    border-top-color: #2864dc;
    border-right-color: rgba(40, 100, 220, 0.65);
    box-shadow:
        0 0 14px rgba(40, 100, 220, 0.07),
        inset 0 0 12px rgba(40, 100, 220, 0.025);
    animation: ef-orbit-blue 4.5s linear infinite;
}

/* Red orbit */
.ef-loader__orbit--red {
    top: 91px;
    width: 158px;
    height: 158px;
    border: 1.5px solid rgba(229, 57, 70, 0.2);
    border-bottom-color: #e53946;
    border-left-color: rgba(229, 57, 70, 0.65);
    box-shadow: 0 0 13px rgba(229, 57, 70, 0.06);
    animation: ef-orbit-red 3.5s linear infinite;
}

/* Small orbit accents */
.ef-loader__orbit--blue::before,
.ef-loader__orbit--red::before {
    content: "";
    position: absolute;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.ef-loader__orbit--blue::before {
    top: 20px;
    right: 18px;
    background: #2864dc;
    box-shadow: 0 0 10px rgba(40, 100, 220, 0.35);
}

.ef-loader__orbit--red::before {
    bottom: 15px;
    left: 17px;
    background: #e53946;
    box-shadow: 0 0 10px rgba(229, 57, 70, 0.3);
}

/* Central brand */
.ef-loader__brand {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 7px;
    margin-top: 10px;
    white-space: nowrap;
    animation: ef-brand-in 0.8s ease both;
}

.ef-loader__english {
    color: #17243b;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 35px;
    font-weight: 700;
    letter-spacing: -1.8px;
}

.ef-loader__fan {
    color: #e53946;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 35px;
    font-weight: 800;
    letter-spacing: -1.5px;
}

/* Tagline */
.ef-loader__tagline {
    position: relative;
    z-index: 2;
    margin-top: 29px;
    color: #667085;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 2.7px;
    text-align: center;
    white-space: nowrap;
}

.ef-loader__tagline span {
    padding: 0 4px;
    color: #e53946;
}

/* Loading dots */
.ef-loader__dots {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    margin-top: 24px;
}

.ef-loader__dots span {
    display: block;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #2864dc;
    opacity: 0.3;
    animation: ef-dot-pulse 1.1s ease-in-out infinite;
}

.ef-loader__dots span:nth-child(2) {
    animation-delay: 0.12s;
}

.ef-loader__dots span:nth-child(3) {
    background: #657da8;
    animation-delay: 0.24s;
}

.ef-loader__dots span:nth-child(4) {
    background: #e53946;
    animation-delay: 0.36s;
}

.ef-loader__dots span:nth-child(5) {
    background: #e53946;
    animation-delay: 0.48s;
}

/* Loading label */
.ef-loader__label {
    margin-top: 12px;
    color: #98a2b3;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 3px;
}

/* Hide state — compatible with existing JavaScript */
.ef-preloader.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* Animations */
@keyframes ef-orbit-blue {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

@keyframes ef-orbit-red {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    to {
        transform: translate(-50%, -50%) rotate(-360deg);
    }
}

@keyframes ef-dot-pulse {
    0%,
    60%,
    100% {
        transform: translateY(0);
        opacity: 0.3;
    }

    30% {
        transform: translateY(-4px);
        opacity: 1;
    }
}

@keyframes ef-brand-in {
    from {
        opacity: 0;
        transform: translateY(7px);
    }

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

/* Mobile */
@media (max-width: 480px) {
    .ef-loader {
        width: 270px;
        min-height: 260px;
    }

    .ef-loader__orbit {
        top: 78px;
        width: 158px;
        height: 158px;
    }

    .ef-loader__orbit--red {
        top: 86px;
        width: 144px;
        height: 144px;
    }

    .ef-loader__english,
    .ef-loader__fan {
        font-size: 31px;
    }

    .ef-loader__tagline {
        margin-top: 25px;
        font-size: 9px;
        letter-spacing: 2.2px;
    }

    .ef-loader__dots {
        margin-top: 21px;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    .ef-loader__orbit,
    .ef-loader__dots span,
    .ef-loader__brand {
        animation: none !important;
    }

    .ef-preloader {
        transition: none;
    }
}