.arc-ecg {
    display: grid;
    gap: 12px;
    color: #111827;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.arc-ecg__frame {
    position: relative;
    overflow: hidden;
    min-height: 220px;
    border: 1px solid rgba(190, 18, 60, 0.22);
    border-radius: 8px;
    background: #fffafb;
    box-shadow: 0 12px 26px rgba(15, 23, 42, 0.06);
}

.arc-ecg__canvas {
    display: block;
    width: 100%;
    height: 220px;
}

.arc-ecg__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    font-size: 13px;
    color: #4b5563;
}

.arc-ecg__title {
    margin: 0;
    color: #111827;
    font-size: 15px;
    font-weight: 800;
}

.arc-ecg__controls {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.arc-ecg__button {
    min-height: 34px;
    border: 1px solid rgba(15, 23, 42, 0.14);
    border-radius: 7px;
    background: #ffffff;
    color: #111827;
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
}

.arc-ecg__button:hover {
    border-color: rgba(5, 150, 105, 0.45);
}

.arc-ecg__sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.arc-ecg-multi {
    display: grid;
    gap: 12px;
    color: #111827;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.arc-ecg-multi__grid {
    display: grid;
    gap: 8px;
}

.arc-ecg-multi__grid[data-mode="six"] {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.arc-ecg-multi__grid[data-mode="twelve"] {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.arc-ecg-lead {
    position: relative;
    overflow: hidden;
    min-height: 128px;
    border: 1px solid rgba(190, 18, 60, 0.22);
    border-radius: 8px;
    background: #fffafb;
}

.arc-ecg-lead__label {
    position: absolute;
    top: 7px;
    left: 8px;
    z-index: 2;
    min-width: 28px;
    padding: 3px 6px;
    border-radius: 6px;
    background: rgba(255, 250, 251, 0.82);
    color: #075f46;
    font-size: 11px;
    font-weight: 850;
    line-height: 1;
}

.arc-ecg-lead__canvas {
    display: block;
    width: 100%;
    height: 128px;
}

.arc-ecg-multi__long-strip {
    display: grid;
    gap: 8px;
}

.arc-ecg-multi__long-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    color: #344054;
    font-size: 13px;
}

.arc-ecg-multi__long-head span {
    color: #075f46;
    font-weight: 850;
}

.arc-ecg-lead--long {
    min-height: 180px;
}

.arc-ecg-lead--long .arc-ecg-lead__canvas {
    height: 180px;
}

@media (max-width: 900px) {
    .arc-ecg-multi__grid[data-mode="six"],
    .arc-ecg-multi__grid[data-mode="twelve"] {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .arc-ecg-multi__grid[data-mode="six"],
    .arc-ecg-multi__grid[data-mode="twelve"] {
        grid-template-columns: 1fr;
    }
}