.error-page {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: max(640px, 100vh);
    overflow: hidden;
    color: var(--color-white);
    background:
        radial-gradient(120% 80% at 12% 18%, rgba(253, 205, 33, 0.18) 0%, transparent 55%),
        radial-gradient(90% 70% at 88% 78%, rgba(0, 83, 203, 0.55) 0%, transparent 60%),
        linear-gradient(145deg, #0a1a5c 0%, #0039a6 48%, #0c123a 100%);
}

.error-page__glow {
    position: absolute;
    width: min(72vw, 720px);
    height: min(72vw, 720px);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(253, 205, 33, 0.22) 0%, transparent 68%);
    top: 8%;
    right: -8%;
    pointer-events: none;
    animation: error-glow 8s var(--ease) infinite alternate;
}

.error-page__grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 45%, #000 20%, transparent 75%);
    pointer-events: none;
    opacity: 0.7;
}

.error-page__inner {
    position: relative;
    z-index: 1;
    width: var(--container);
    max-width: 920px;
    margin: 0 auto;
    padding: calc(var(--header-height) + 48px) 0 72px;
    text-align: left;
}

.error-page__code {
    margin: 0 0 12px;
    font-family: var(--font-display);
    font-size: clamp(96px, 18vw, 180px);
    font-weight: 600;
    line-height: 0.9;
    letter-spacing: -0.04em;
    color: var(--color-yellow);
    text-transform: uppercase;
}

.error-page__title {
    margin: 0 0 16px;
    font-family: var(--font-display);
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 600;
    line-height: 1.05;
    letter-spacing: -0.02em;
    text-transform: uppercase;
}

.error-page__text {
    margin: 0 0 36px;
    max-width: 34em;
    font-size: clamp(18px, 2.2vw, 24px);
    font-weight: 400;
    line-height: 1.45;
    color: rgba(255, 255, 255, 0.82);
}

.error-page__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.error-page .error-page__btn-ghost {
    border-color: rgba(255, 255, 255, 0.55);
    color: var(--color-white);
    background: transparent;
}

.error-page .error-page__btn-ghost:hover {
    background: var(--color-white);
    border-color: var(--color-white);
    color: var(--color-navy);
}

.js .error-page [data-animate] {
    opacity: 0;
    transform: translateY(18px);
    animation: error-rise 0.7s var(--ease) forwards;
    animation-delay: calc(var(--error-delay, 0) * 1ms);
}

.js .error-page [data-animate-delay="0"] {
    --error-delay: 0;
}

.js .error-page [data-animate-delay="80"] {
    --error-delay: 80;
}

.js .error-page [data-animate-delay="160"] {
    --error-delay: 160;
}

.js .error-page [data-animate-delay="240"] {
    --error-delay: 240;
}

@keyframes error-rise {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes error-glow {
    from {
        transform: translate3d(0, 0, 0) scale(1);
        opacity: 0.85;
    }

    to {
        transform: translate3d(-24px, 18px, 0) scale(1.08);
        opacity: 1;
    }
}

@media (max-width: 767px) {
    .error-page__inner {
        padding: calc(var(--header-height) + 32px) 0 56px;
    }

    .error-page__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .error-page__actions .button {
        width: 100%;
    }
}