.bc-rng-wrapper {
    max-width: 720px;
    margin: 2rem auto;
    padding: 1rem;
}

.bc-rng-card {
    background: #ffffff;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
}

.bc-rng-title {
    font-size: 1.8rem;
    margin: 0 0 0.5rem;
}

.bc-rng-subtitle {
    margin: 0 0 1.5rem;
    color: #555;
    line-height: 1.5;
}

.bc-rng-form {
    margin-bottom: 1.5rem;
}

.bc-rng-row {
    margin-bottom: 1rem;
}

.bc-rng-row label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.bc-rng-row input[type="number"],
.bc-rng-row input[type="text"] {
    width: 100%;
    padding: 0.6rem 0.8rem;
    border-radius: 8px;
    border: 1px solid #d0d0da;
    font-size: 1rem;
}

.bc-rng-button {
    display: block;
    padding: 0.75rem 1.5rem;
    border-radius: 999px;
    border: none;
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: #ffffff;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    margin-top: 0.5rem;
	margin: 1rem auto 0 auto;
    text-align: center;
    transition: transform 0.08s ease, box-shadow 0.08s ease;
    box-shadow: 0 10px 25px rgba(79, 70, 229, 0.35);
}

.bc-rng-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 32px rgba(79, 70, 229, 0.45);
}

.bc-rng-button:active {
    transform: translateY(0);
    box-shadow: 0 8px 18px rgba(79, 70, 229, 0.3);
}

.bc-rng-note {
    font-size: 0.9rem;
    color: #666;
    margin-top: 0.5rem;
}

.bc-rng-status {
    margin-top: 0.75rem;
    font-size: 0.95rem;
    color: #2563eb;
}

.bc-rng-status-error {
    color: #b91c1c;
}

.bc-rng-visual {
    margin-top: 1.75rem;
    text-align: center;
}

.bc-rng-label {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.3rem;
}

.bc-rng-animation {
    font-family: "SF Mono", ui-monospace, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 2.6rem;
    letter-spacing: 0.14em;
    padding: 0.9rem 1rem;
    border-radius: 12px;
    border: 1px solid #e0e0f0;
    background: radial-gradient(circle at top left, #eef2ff, #ffffff);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.6);
}

.bc-rng-result-block {
    margin-top: 2rem;
    padding-top: 1.25rem;
    border-top: 1px solid #ebebf5;
}

.bc-rng-section-title {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.bc-rng-result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem 1.5rem;
    margin-bottom: 0.75rem;
}

.bc-rng-result-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #888;
    margin-bottom: 0.1rem;
}

.bc-rng-result-value {
    font-size: 1rem;
    font-weight: 600;
}

.bc-rng-key {
    word-break: break-all;
}

.bc-rng-mono {
    font-family: "SF Mono", ui-monospace, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.9rem;
    word-break: break-all;
}

.bc-rng-helper {
    font-size: 0.9rem;
    color: #666;
}

.bc-rng-hidden {
    display: none;
}

@media (max-width: 600px) {
    .bc-rng-card {
        padding: 1.5rem;
    }

    .bc-rng-animation {
        font-size: 2.1rem;
        letter-spacing: 0.08em;
    }
}