/**
 * Farzone SOS — system loader
 * Minimal, premium presentation inspired by refined product-reveal aesthetics.
 */
.fz-system-loader {
    --fz-loader-ease: cubic-bezier(0.22, 1, 0.36, 1);
    --fz-loader-ease-out: cubic-bezier(0.33, 1, 0.68, 1);
    --fz-loader-ink: rgba(255, 255, 255, 0.92);
    --fz-loader-muted: rgba(255, 255, 255, 0.42);
    --fz-loader-line: rgba(255, 255, 255, 0.14);
    --fz-loader-accent: rgba(247, 255, 95, 0.88);
    --fz-loader-accent-soft: rgba(220, 38, 38, 0.55);

    position: fixed;
    inset: 0;
    z-index: 2147483000;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(ellipse 80% 62% at 50% 42%, rgba(255, 255, 255, 0.035), transparent 68%),
        rgba(8, 9, 11, 0.97);
    backdrop-filter: blur(24px) saturate(120%);
    -webkit-backdrop-filter: blur(24px) saturate(120%);
    opacity: 1;
    visibility: visible;
    transition:
        opacity 0.55s var(--fz-loader-ease-out),
        visibility 0.55s var(--fz-loader-ease-out);
}

.fz-system-loader.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.fz-system-loader__panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.75rem;
    text-align: center;
    transform: scale(1) translateY(0);
    opacity: 1;
    transition:
        transform 0.55s var(--fz-loader-ease-out),
        opacity 0.45s var(--fz-loader-ease-out);
}

.fz-system-loader.is-entering .fz-system-loader__panel {
    transform: scale(0.94) translateY(6px);
    opacity: 0;
}

.fz-system-loader.is-hidden .fz-system-loader__panel {
    transform: scale(0.97) translateY(-4px);
    opacity: 0;
}

.fz-system-loader__stage {
    position: relative;
    width: 6.5rem;
    height: 6.5rem;
    display: grid;
    place-items: center;
}

.fz-system-loader__halo {
    position: absolute;
    inset: -1.1rem;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.07) 0%, transparent 72%);
    opacity: 0.85;
}

.fz-system-loader__orbit {
    position: absolute;
    inset: -0.55rem;
    border-radius: 50%;
    border: 1px solid transparent;
    border-top-color: var(--fz-loader-accent-soft);
    border-right-color: rgba(255, 255, 255, 0.08);
    opacity: 0.75;
    animation: fz-loader-orbit 2.8s var(--fz-loader-ease) infinite;
}

.fz-system-loader__logo {
    position: relative;
    z-index: 1;
    width: 5rem;
    height: 5rem;
    object-fit: contain;
    border-radius: 50%;
    filter: drop-shadow(0 10px 28px rgba(0, 0, 0, 0.38));
    transform: translateZ(0);
    animation: fz-loader-logo 3.6s ease-in-out infinite;
}

.fz-system-loader__brand {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'SF Pro Display', 'Helvetica Neue', 'DM Sans', system-ui, sans-serif;
    font-size: 0.8125rem;
    font-weight: 400;
    letter-spacing: 0.04em;
    color: var(--fz-loader-muted);
}

.fz-system-loader__brand strong {
    font-weight: 500;
    color: var(--fz-loader-ink);
    letter-spacing: 0.01em;
}

.fz-system-loader__track {
    width: 7.5rem;
    height: 1px;
    border-radius: 999px;
    background: var(--fz-loader-line);
    overflow: hidden;
    position: relative;
}

.fz-system-loader__track::after {
    content: '';
    position: absolute;
    inset: 0 auto 0 0;
    width: 38%;
    border-radius: inherit;
    background: linear-gradient(
        90deg,
        transparent 0%,
        var(--fz-loader-accent-soft) 35%,
        var(--fz-loader-accent) 50%,
        var(--fz-loader-accent-soft) 65%,
        transparent 100%
    );
    animation: fz-loader-glide 2.1s var(--fz-loader-ease) infinite;
}

@keyframes fz-loader-orbit {
    0% {
        transform: rotate(0deg);
        opacity: 0.45;
    }
    50% {
        opacity: 0.9;
    }
    100% {
        transform: rotate(360deg);
        opacity: 0.45;
    }
}

@keyframes fz-loader-logo {
    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.015);
        opacity: 0.96;
    }
}

@keyframes fz-loader-glide {
    0% {
        transform: translateX(-115%);
    }
    100% {
        transform: translateX(290%);
    }
}

@media (prefers-reduced-motion: reduce) {
    .fz-system-loader,
    .fz-system-loader__panel {
        transition-duration: 0.01ms !important;
    }

    .fz-system-loader__orbit,
    .fz-system-loader__logo,
    .fz-system-loader__track::after {
        animation: none !important;
    }

    .fz-system-loader__orbit {
        border-top-color: rgba(220, 38, 38, 0.35);
        opacity: 0.6;
    }

    .fz-system-loader__track::after {
        width: 42%;
        left: 29%;
    }
}