.error-page {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 1.5rem 1rem;
}

.error-page--fullscreen {
    min-height: 100vh;
    padding: 2rem;
}

.error-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
    max-width: none;
    gap: 1.5rem;
}

.error-content--fullscreen {
    max-width: 640px;
}

.error-brand {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
}

.error-brand-icon {
    width: 56px;
    height: 56px;
}

.error-brand-name {
    font-size: clamp(1.8rem, 5vw, 2.8rem);
    font-weight: 800;
    line-height: 1;
    color: var(--text);
}

.error-code {
    font-size: clamp(5rem, 22vw, 14rem);
    font-weight: 900;
    line-height: 1;
    letter-spacing: -0.03em;
    background-image: linear-gradient(
        90deg,
        #3aa783 0%,
        #5eead4 25%,
        #38bdf8 50%,
        #7dd3fc 75%,
        #3aa783 100%
    );
    background-size: 300%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: error-code-flow 8s ease-in-out infinite alternate;
    user-select: none;
}

body[data-theme="light"] .error-code {
    background-image: linear-gradient(
        90deg,
        #93c5fd 0%,
        #7dd3fc 25%,
        #67e8f9 50%,
        #5eead4 75%,
        #93c5fd 100%
    );
    background-size: 300%;
}

body[data-theme="light"] .error-content a.error-dashboard-btn {
    background: #ccfbf1;
    color: #0f766e;
    border: 1px solid #5eead4;
}

body[data-theme="light"] .error-content a.error-dashboard-btn:hover {
    opacity: 1;
    background: #99f6e4;
    color: #115e59;
}

@keyframes error-code-flow {
    0% {
        background-position: 0% center;
    }

    100% {
        background-position: 100% center;
    }
}

.error-description {
    font-size: clamp(1rem, 2.2vw, 1.25rem);
    color: var(--text-muted);
    margin: 0;
    line-height: 1.55;
}

.error-dashboard-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    background: var(--accent);
    color: #fff;
    transition: opacity 0.15s ease;
    margin-top: 0.5rem;
}

.error-dashboard-btn:hover {
    opacity: 0.85;
}

@media (max-width: 480px) {
    .error-page,
    .error-page--fullscreen {
        padding: 2rem 1rem;
    }
}