.obfaif {
    --obfaif-primary: #075985;
    --obfaif-accent: #0ea5e9;
    --obfaif-pale: #f0f9ff;
    max-width: 800px;
    margin: 28px auto;
    padding: clamp(20px, 4vw, 34px);
    border: 1px solid #bae6fd;
    border-radius: 18px;
    background: linear-gradient(145deg, #fff 0%, var(--obfaif-pale) 100%);
    box-shadow: 0 12px 30px rgba(7, 89, 133, .09);
    color: #0f172a;
}

.obfaif__heading {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 22px;
}

.obfaif__icon {
    display: grid;
    width: 52px;
    height: 52px;
    flex: 0 0 52px;
    place-items: center;
    border-radius: 50%;
    background: #fff;
    font-size: 27px;
    box-shadow: 0 5px 14px rgba(7, 89, 133, .12);
}

.obfaif h2 {
    margin: 0 0 3px;
    color: var(--obfaif-primary);
    font-size: clamp(20px, 4vw, 27px);
    line-height: 1.35;
}

.obfaif__heading p,
.obfaif__note {
    margin: 0;
    color: #475569;
}

.obfaif__form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
}

.obfaif__controls {
    display: flex;
    gap: 10px;
}

.obfaif__controls input {
    min-width: 0;
    flex: 1;
    padding: 13px 15px;
    border: 1px solid #94a3b8;
    border-radius: 10px;
    background: #fff;
    color: #0f172a;
    font-size: 16px;
}

.obfaif__controls input:focus {
    border-color: var(--obfaif-accent);
    outline: 3px solid rgba(14, 165, 233, .18);
}

.obfaif__controls button {
    padding: 13px 20px;
    border: 0;
    border-radius: 10px;
    background: var(--obfaif-primary);
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
}

.obfaif__controls button:hover {
    background: #0369a1;
}

.obfaif__controls button:disabled {
    cursor: wait;
    opacity: .7;
}

.obfaif__status {
    min-height: 1.6em;
    margin: 14px 0 0;
    color: #475569;
}

.obfaif__answer {
    margin-top: 16px;
    padding: 18px;
    border-left: 4px solid var(--obfaif-accent);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 5px 16px rgba(15, 23, 42, .07);
    line-height: 1.85;
    white-space: pre-wrap;
}

.obfaif__note {
    margin-top: 16px;
    font-size: 13px;
}

@media (max-width: 600px) {
    .obfaif__controls {
        flex-direction: column;
    }

    .obfaif__controls button {
        width: 100%;
    }
}