/* System / device-test module */

.dev-system-page .dev-calc-panel,
.dev-system-page .dev-system-panel {
    background: var(--dev-surface, #fff);
    border: 1px solid var(--dev-border, #e2e8f0);
    border-radius: var(--dev-radius, 6px);
    box-shadow: var(--dev-shadow, 0 1px 2px rgba(15, 23, 42, 0.04));
    padding: 16px 18px 20px;
    margin-bottom: 8px;
}

/* Screen / heavy custom UIs: don't double-card */
.dev-system-page .dev-calc-panel:has(.sys-screen),
.dev-system-page .dev-calc-panel:has(.sys-app),
.dev-system-page .dev-calc-panel:has(.container-main) {
    background: transparent;
    border: 0;
    box-shadow: none;
    padding: 0;
}

.dev-system-page .form-group {
    margin-bottom: 14px;
}

.dev-system-page .form-control,
.dev-system-page select.form-control,
.dev-system-page input.form-control,
.dev-system-page textarea.form-control {
    box-sizing: border-box;
    width: 100%;
    max-width: 520px;
    height: 32px;
    padding: 6px 10px;
    border: 1px solid var(--dev-border, #e2e8f0);
    border-radius: var(--dev-radius-sm, 4px);
    background: #fff;
    color: var(--dev-text, #0f172a);
    font-size: 13px;
}

.dev-system-page textarea.form-control {
    height: auto;
    min-height: 100px;
}

.dev-system-page .help-text {
    color: var(--dev-text-muted, #64748b);
    font-size: 12px;
}

.dev-system-page .time-field {
    margin-bottom: 14px;
    border: 1px solid var(--dev-border, #e2e8f0);
    border-radius: var(--dev-radius-sm, 4px);
    padding: 12px;
    background: #fff;
}

.dev-system-page .time-field h4 {
    margin: 0 0 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--dev-text, #0f172a);
}

.dev-system-page .row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -8px;
}

.dev-system-page .row > [class*="col-"] {
    padding: 0 8px;
    box-sizing: border-box;
}

.dev-system-page .row > .col-md-4 { flex: 0 0 33.333%; max-width: 33.333%; }
.dev-system-page .row > .col-md-6 { flex: 0 0 50%; max-width: 50%; }
.dev-system-page .row > .col-md-8 { flex: 0 0 66.666%; max-width: 66.666%; }
.dev-system-page .row > .col-md-12 { flex: 0 0 100%; max-width: 100%; }
.dev-system-page .col-md-offset-2 { margin-left: 0; }

.dev-system-page .btn-block {
    display: block;
    width: 100%;
    max-width: 520px;
}

.dev-system-page .btn-lg {
    height: 40px;
    padding: 0 16px;
    font-size: 14px;
}

.dev-system-page .btn-success {
    border-color: #86efac !important;
    background: #16a34a !important;
    color: #fff !important;
}

.dev-system-page .btn-info {
    border-color: #7dd3fc !important;
    background: #0ea5e9 !important;
    color: #fff !important;
}

.dev-system-page .radio-inline {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-right: 12px;
    font-size: 13px;
    cursor: pointer;
}

.dev-system-page .text-center {
    text-align: center;
}

.dev-system-page .sys-screen .row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -8px;
}

.dev-system-page .sys-screen .col-sm-4 {
    flex: 0 0 33.333%;
    max-width: 33.333%;
    padding: 0 8px;
    box-sizing: border-box;
}

@media (max-width: 768px) {
    .dev-system-page .sys-screen .col-sm-4 {
        flex: 0 0 100%;
        max-width: 100%;
        margin-bottom: 8px;
    }
}

/* Keyboard tester — keep original key proportions in narrow layout */
.dev-system-page .dg-keyboard,
.dev-system-page .sys-keyboard {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.dev-system-page .dg-keyboard .ctn {
    min-width: 1080px;
    width: 1080px !important;
    margin: 0 auto;
}

.dev-system-page .dg-keyboard .keyboard {
    width: 1080px;
    max-width: none;
    box-sizing: border-box;
}

.dev-system-page .dg-keyboard .keyboard .rw ul {
    display: flex !important;
    flex-wrap: nowrap !important;
    align-items: stretch !important;
    margin: 0 !important;
    padding: 0 !important;
    list-style: none !important;
}

.dev-system-page .dg-keyboard .keyboard .rw ul li {
    box-sizing: border-box !important;
    height: 40px !important;
    min-height: 40px !important;
    max-height: 40px !important;
    margin: 0 2px !important;
    padding: 0 2px !important;
    line-height: 1.1 !important;
    flex-shrink: 1;
}

.dev-system-page .dg-keyboard .keyboard .rw ul li span {
    margin-top: 0 !important;
    line-height: 1.1 !important;
}

.dev-system-page .dg-keyboard .keyboard .rw ul li span:last-child {
    margin-top: 2px !important;
}

.dev-system-page .dg-keyboard .keyboard .left {
    flex: 0 0 64% !important;
    max-width: 64%;
}

.dev-system-page .dg-keyboard .keyboard .center {
    flex: 0 0 16% !important;
    max-width: 16%;
}

.dev-system-page .dg-keyboard .keyboard .right {
    flex: 0 0 20% !important;
    max-width: 20%;
    padding-right: 8px !important;
}