.error-page {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: var(--bg-primary, #0a0a0f);
    color: var(--text-primary, #f5f5f7);
}

.error-shell {
    text-align: center;
    max-width: 400px;
}

.error-code {
    font-size: clamp(4rem, 18vw, 7rem);
    font-weight: 700;
    line-height: 1;
    opacity: 0.12;
    margin-bottom: -2rem;
    user-select: none;
}

.error-logo {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    display: block;
}

.error-shell h1 {
    font-size: 1.35rem;
    font-weight: 600;
    margin: 0 0 10px;
}

.error-shell p {
    margin: 0 0 28px;
    color: var(--text-secondary, #a1a1aa);
    font-size: 0.95rem;
    line-height: 1.6;
}

.error-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.error-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: opacity 0.15s ease;
}

.error-btn:hover {
    opacity: 0.9;
}

.error-btn-primary {
    background: var(--accent, #3b82f6);
    color: #fff;
}

.error-btn-ghost {
    background: rgba(255, 255, 255, 0.08);
    color: inherit;
}