.arcc-checker {
    box-sizing: border-box;
    max-width: 760px;
    padding: 1.5rem;
    border: 1px solid #d7dce3;
    border-radius: 12px;
    background: #fff;
    color: #172033;
}

.arcc-checker *,
.arcc-checker *::before,
.arcc-checker *::after {
    box-sizing: border-box;
}

.arcc-checker__title {
    margin: 0 0 .45rem;
    font-size: clamp(1.35rem, 2.4vw, 1.8rem);
    line-height: 1.25;
}

.arcc-checker__description {
    margin: 0 0 1rem;
    color: #4b5568;
}

.arcc-checker__input-row {
    display: flex;
    gap: .65rem;
}

.arcc-checker__input {
    min-width: 0;
    flex: 1 1 auto;
    padding: .78rem .9rem;
    border: 1px solid #aab4c3;
    border-radius: 8px;
    background: #fff;
    color: #172033;
    font: inherit;
}

.arcc-checker__input:focus {
    outline: 3px solid rgba(18, 97, 196, .22);
    outline-offset: 1px;
    border-color: #1261c4;
}

.arcc-checker__button {
    flex: 0 0 auto;
    padding: .78rem 1rem;
    border: 1px solid #1261c4;
    border-radius: 8px;
    background: #1261c4;
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-weight: 600;
}

.arcc-checker__button:hover,
.arcc-checker__button:focus {
    background: #0e4f9e;
    border-color: #0e4f9e;
}

.arcc-checker__status {
    min-height: 1.4em;
    margin: .8rem 0;
    color: #4b5568;
    font-size: .94rem;
}

.arcc-checker__list {
    display: grid;
    gap: .7rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.arcc-checker__result {
    padding: 1rem;
    border: 1px solid #c5d8ef;
    border-radius: 9px;
    background: #f5f9ff;
}

.arcc-checker__result-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .8rem;
}

.arcc-checker__model {
    font-size: 1rem;
}

.arcc-checker__badge {
    display: inline-block;
    flex: 0 0 auto;
    padding: .25rem .5rem;
    border-radius: 999px;
    background: #dcecff;
    color: #073b7a;
    font-size: .78rem;
    font-weight: 700;
    white-space: nowrap;
}

.arcc-checker__supports {
    margin: .45rem 0 .15rem;
    color: #137333;
    font-weight: 700;
}

.arcc-checker__detail,
.arcc-checker__empty,
.arcc-checker__notice {
    margin: .35rem 0 0;
    color: #4b5568;
    font-size: .92rem;
}

.arcc-checker__empty {
    padding: .9rem;
    border-left: 4px solid #c58b00;
    background: #fff9e7;
}

.arcc-checker__notice {
    margin-top: 1rem;
    padding-top: .85rem;
    border-top: 1px solid #e5e8ed;
}

.arcc-editor-preview {
    max-width: 760px;
    padding: 1.5rem;
    border: 1px solid #d7dce3;
    border-radius: 12px;
    background: #fff;
}

.arcc-editor-preview h3 {
    margin-top: 0;
}

.arcc-editor-preview__input {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    padding: .75rem .9rem;
    border: 1px solid #aab4c3;
    border-radius: 8px;
    color: #677286;
}

.arcc-editor-preview__input strong {
    padding: .5rem .7rem;
    border-radius: 6px;
    background: #1261c4;
    color: #fff;
}

.arcc-editor-preview__note {
    margin-bottom: 0;
    color: #4b5568;
    font-size: .9rem;
}

@media (max-width: 520px) {
    .arcc-checker__input-row {
        flex-direction: column;
    }

    .arcc-checker__button {
        width: 100%;
    }

    .arcc-checker__result-heading {
        align-items: flex-start;
        flex-direction: column;
    }
}