/**
 * MKM Bix - Preloader
 * Page preloader styles
 * @package MKM_Bix
 */

/* ==================== PRELOADER WRAPPER ==================== */
.mkm-preloader {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--mkm-white);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: var(--mkm-space-6);
    z-index: var(--mkm-z-max);
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.mkm-preloader.is-hidden {
    opacity: 0;
    visibility: hidden;
}

/* ==================== PRELOADER SPINNER ==================== */
.mkm-preloader-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--mkm-gray-200);
    border-top-color: var(--mkm-primary);
    border-radius: 50%;
    animation: mkm-preloader-spin 0.8s linear infinite;
}

@keyframes mkm-preloader-spin {
    to {
        transform: rotate(360deg);
    }
}

/* ==================== PRELOADER LOGO ==================== */
.mkm-preloader-logo {
    max-width: 150px;
    animation: mkm-preloader-pulse 1.5s ease-in-out infinite;
}

@keyframes mkm-preloader-pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* ==================== PRELOADER TEXT ==================== */
.mkm-preloader-text {
    font-size: var(--mkm-fs-sm);
    color: var(--mkm-gray-600);
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ==================== PRELOADER VARIANTS ==================== */

/* Dots */
.mkm-preloader-dots {
    display: flex;
    gap: var(--mkm-space-2);
}

.mkm-preloader-dot {
    width: 12px;
    height: 12px;
    background: var(--mkm-primary);
    border-radius: 50%;
    animation: mkm-preloader-dots 1.4s ease-in-out infinite both;
}

.mkm-preloader-dot:nth-child(1) { animation-delay: -0.32s; }
.mkm-preloader-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes mkm-preloader-dots {
    0%, 80%, 100% {
        transform: scale(0);
    }
    40% {
        transform: scale(1);
    }
}

/* Bars */
.mkm-preloader-bars {
    display: flex;
    gap: var(--mkm-space-1);
    height: 40px;
    align-items: center;
}

.mkm-preloader-bar {
    width: 4px;
    height: 100%;
    background: var(--mkm-primary);
    animation: mkm-preloader-bars 1.2s ease-in-out infinite;
}

.mkm-preloader-bar:nth-child(1) { animation-delay: -1.2s; }
.mkm-preloader-bar:nth-child(2) { animation-delay: -1.1s; }
.mkm-preloader-bar:nth-child(3) { animation-delay: -1.0s; }
.mkm-preloader-bar:nth-child(4) { animation-delay: -0.9s; }
.mkm-preloader-bar:nth-child(5) { animation-delay: -0.8s; }

@keyframes mkm-preloader-bars {
    0%, 40%, 100% {
        transform: scaleY(0.4);
    }
    20% {
        transform: scaleY(1);
    }
}

/* Circle */
.mkm-preloader-circle {
    width: 60px;
    height: 60px;
    position: relative;
}

.mkm-preloader-circle::before,
.mkm-preloader-circle::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-radius: 50%;
}

.mkm-preloader-circle::before {
    border-top-color: var(--mkm-primary);
    animation: mkm-preloader-spin 1s linear infinite;
}

.mkm-preloader-circle::after {
    border-bottom-color: var(--mkm-secondary);
    animation: mkm-preloader-spin 1s linear infinite reverse;
}

/* Progress Bar */
.mkm-preloader-progress {
    width: 200px;
    height: 4px;
    background: var(--mkm-gray-200);
    border-radius: var(--mkm-radius-full);
    overflow: hidden;
}

.mkm-preloader-progress-bar {
    height: 100%;
    background: linear-gradient(135deg, var(--mkm-primary), var(--mkm-secondary));
    animation: mkm-preloader-progress 2s ease-in-out infinite;
}

@keyframes mkm-preloader-progress {
    0% {
        width: 0;
        margin-left: 0;
    }
    50% {
        width: 100%;
        margin-left: 0;
    }
    100% {
        width: 0;
        margin-left: 100%;
    }
}