.system-dialog-backdrop {
    position: fixed;
    inset: 0;
    z-index: 100000;
    width: 100%;
    height: 100%;
    max-width: none;
    max-height: none;
    margin: 0;
    padding: 20px;
    overflow: hidden;
    border: 0;
    background: transparent;
    box-sizing: border-box;
}

.system-dialog-backdrop[open] {
    display: grid;
    place-items: center;
}

.system-dialog-backdrop::backdrop {
    background: rgba(2, 15, 20, 0.62);
}

.system-dialog-panel {
    width: min(440px, 100%);
    max-height: min(520px, calc(100vh - 40px));
    overflow: auto;
    background: #ffffff;
    border: 1px solid #cbd8de;
    border-radius: 8px;
    box-shadow: 0 22px 60px rgba(0, 20, 28, 0.28);
}

.system-dialog-head {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 20px;
    border-bottom: 1px solid #dce5e9;
}

.system-dialog-icon {
    display: grid;
    flex: 0 0 36px;
    width: 36px;
    height: 36px;
    place-items: center;
    border-radius: 50%;
    color: #ffffff;
    background: #0f9fb0;
    font-size: 22px;
    font-weight: 800;
    line-height: 1;
}

.system-dialog-panel.is-error .system-dialog-icon {
    background: #dc2626;
}

.system-dialog-title {
    margin: 0;
    color: #0a1720;
    font-size: 21px;
    line-height: 1.2;
}

.system-dialog-message {
    margin: 0;
    padding: 22px 20px;
    color: #263b46;
    font-size: 17px;
    line-height: 1.5;
    overflow-wrap: anywhere;
    white-space: pre-line;
}

.system-dialog-actions {
    display: flex;
    justify-content: flex-end;
    padding: 0 20px 20px;
}

.system-dialog-ok {
    min-width: 104px;
    min-height: 44px;
    border: 0;
    border-radius: 6px;
    color: #ffffff;
    background: #0f9fb0;
    font: inherit;
    font-weight: 800;
    cursor: pointer;
}

.system-dialog-panel.is-error .system-dialog-ok {
    background: #dc2626;
}

.system-dialog-ok:focus-visible {
    outline: 3px solid rgba(15, 159, 176, 0.3);
    outline-offset: 3px;
}

body.system-dialog-open {
    overflow: hidden;
}

@media (max-width: 520px) {
    .system-dialog-backdrop {
        padding: 14px;
    }

    .system-dialog-head {
        padding: 16px;
    }

    .system-dialog-message {
        padding: 20px 16px;
        font-size: 16px;
    }

    .system-dialog-actions {
        padding: 0 16px 16px;
    }

    .system-dialog-ok {
        width: 100%;
    }
}