.mainContent {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1.6rem;
    padding: 0 0 2.4rem;
}

.graphsToolbar {
    position: sticky;
    top: 0;
    z-index: 12;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    min-height: 7.2rem;
    padding: 1.2rem 1.6rem;
    background: rgba(255, 255, 255, 0.94);
    border: 0.1rem solid var(--colour-BLUE_LIGHT_3);
    border-radius: 1.8rem;
    box-shadow: 0 1rem 2.8rem rgba(38, 38, 38, 0.07);
    backdrop-filter: blur(1rem);
}

.graphsToolbar h2 {
    font-size: 2.4rem;
    line-height: 1.1;
}

.graphsToolbar > div > p:last-child {
    margin-top: 0.25rem;
    color: var(--colour-BLACK_075);
    font-size: 1.35rem;
}

.toolbarEyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.35rem;
    color: var(--colour-success-strong);
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.graphsArea {
    display: flex;
    flex-direction: column;
    gap: 1.6rem;
    width: 100%;
}

.addGraphBtn,
.connectButton {
    min-height: 4.6rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1rem 1.8rem;
    background: var(--colour-primary-strong);
    border: 0.2rem solid transparent;
    border-radius: 999px;
    color: var(--colour-TRUE_WHITE);
    cursor: pointer;
    font-size: 1.5rem;
    font-weight: 800;
    box-shadow: 0 1rem 2.2rem rgba(11, 111, 135, 0.22);
    transition: background-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.toolbarActions,
.connectActions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.toolbarActions {
    justify-content: flex-end;
}

.deviceActionButton {
    min-height: 4.6rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    padding: 0.9rem 1.4rem;
    border: 0.2rem solid var(--colour-primary-strong);
    border-radius: 999px;
    background: var(--colour-TRUE_WHITE);
    color: var(--colour-primary-deep);
    cursor: pointer;
    font-size: 1.35rem;
    font-weight: 800;
}

.deviceActionButton:hover {
    background: var(--colour-BLUE_LIGHT_1);
}

.deviceActionButton:focus-visible {
    outline: 0.3rem solid var(--focus-ring);
    outline-offset: 0.3rem;
}

.deviceActionButton:disabled {
    cursor: not-allowed;
    opacity: 0.55;
}

.microBitButtonIcon {
    width: 2.4rem;
    height: 2.4rem;
    flex: 0 0 auto;
}

.addGraphBtn:hover,
.connectButton:hover {
    background-color: var(--colour-primary-deep);
    transform: translateY(-0.1rem);
    box-shadow: 0 1.2rem 2.6rem rgba(6, 75, 93, 0.25);
}

.addGraphBtn:focus-visible,
.connectButton:focus-visible {
    outline: 0.3rem solid var(--focus-ring);
    outline-offset: 0.3rem;
}

.connectButton:disabled {
    cursor: progress;
    opacity: 0.72;
    transform: none;
}

.connectEmptyState {
    width: min(100%, 104rem);
    margin: 2rem auto;
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(28rem, 0.75fr);
    gap: 1.6rem;
}

.connectEmptyHero {
    padding: clamp(2.4rem, 5vw, 4.8rem);
    background: var(--colour-TRUE_WHITE);
    border: 0.1rem solid var(--colour-BLUE_LIGHT_3);
    border-radius: 2.4rem;
    box-shadow: 0 2rem 5rem rgba(38, 38, 38, 0.08);
}

.emptyStateIcon {
    width: 5.6rem;
    height: 5.6rem;
    display: grid;
    place-items: center;
    margin-bottom: 1.8rem;
    background: var(--colour-BLUE_LIGHT_1);
    border: 0.1rem solid var(--colour-BLUE_LIGHT_3);
    border-radius: 1.8rem;
    color: var(--colour-primary-strong);
    font-size: 2.5rem;
}

.emptyStateEyebrow {
    color: var(--colour-primary-strong);
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.connectEmptyHero h2 {
    max-width: 58rem;
    margin-top: 0.7rem;
    font-size: clamp(2.8rem, 4vw, 4.4rem);
    line-height: 1.08;
}

.emptyStateDescription {
    max-width: 60rem;
    margin-top: 1.2rem;
    color: var(--colour-BLACK_075);
    font-size: 1.7rem;
}

.connectActions {
    margin-top: 2.4rem;
}

.connectActions .connectButton {
    margin-top: 0;
}

.secondaryButton {
    border-color: var(--colour-primary-strong);
    background: var(--colour-TRUE_WHITE);
    color: var(--colour-primary-deep);
    box-shadow: none;
}

.secondaryButton:hover {
    background: var(--colour-BLUE_LIGHT_1);
    color: var(--colour-primary-deep);
    box-shadow: none;
}

.connectionFeedback {
    min-height: 2.1rem;
    margin-top: 1.2rem;
    color: var(--colour-BLACK_075);
    font-size: 1.35rem;
}

.connectionError {
    color: #a22525;
    font-weight: 700;
}

.toolbarFeedback {
    margin: -0.8rem 0 0;
    color: var(--colour-BLACK_075);
    font-size: 1.3rem;
}

.toolbarFeedback.connectionError {
    color: #a22525;
}

.quickJourney {
    list-style: none;
    display: grid;
    align-content: center;
    gap: 1.2rem;
    padding: 2rem;
    background: rgba(214, 243, 246, 0.74);
    border: 0.1rem solid var(--colour-BLUE_LIGHT_3);
    border-radius: 2.4rem;
}

.quickJourney li {
    display: grid;
    grid-template-columns: 4.4rem 1fr;
    align-items: center;
    gap: 1.2rem;
    min-height: 6.4rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.78);
    border-radius: 1.4rem;
}

.quickJourney li > span {
    width: 4.4rem;
    height: 4.4rem;
    display: grid;
    place-items: center;
    background: var(--colour-primary-strong);
    border-radius: 50%;
    color: var(--colour-TRUE_WHITE);
    font-weight: 800;
}

.quickJourney strong,
.quickJourney small {
    display: block;
}

.quickJourney strong {
    font-size: 1.5rem;
}

.quickJourney small {
    margin-top: 0.15rem;
    color: var(--colour-BLACK_075);
    font-size: 1.3rem;
}

.addNewGraphMessage {
    width: min(100%, 76rem);
    margin: 2.4rem auto;
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 1.8rem;
    padding: 2.4rem;
    background: rgba(255, 255, 255, 0.86);
    border: 0.1rem dashed var(--colour-primary);
    border-radius: 2rem;
    color: var(--colour-BLACK);
}

.addNewGraphMessage > svg {
    width: 5.2rem;
    height: 5.2rem;
    padding: 1.3rem;
    background: var(--colour-BLUE_LIGHT_1);
    border-radius: 1.6rem;
    color: var(--colour-primary-strong);
}

.addNewGraphMessage h3 {
    margin-top: 0.4rem;
    font-size: 2.2rem;
}

.addNewGraphMessage div > p:last-child {
    margin-top: 0.5rem;
    color: var(--colour-BLACK_075);
    font-size: 1.5rem;
}

@media (max-width: 900px) {
    .connectEmptyState {
        grid-template-columns: 1fr;
    }

    .quickJourney {
        grid-template-columns: repeat(3, 1fr);
        align-items: stretch;
    }

    .quickJourney li {
        grid-template-columns: 1fr;
        align-content: start;
    }
}

@media (max-width: 640px) {
    .graphsToolbar {
        position: static;
        align-items: stretch;
        flex-direction: column;
        border-radius: 1.6rem;
    }

    .addGraphBtn {
        width: 100%;
    }

    .toolbarActions {
        align-items: stretch;
        flex-direction: column;
        width: 100%;
    }

    .deviceActionButton {
        width: 100%;
    }

    .connectEmptyState {
        margin-top: 0;
    }

    .connectEmptyHero,
    .quickJourney {
        border-radius: 1.8rem;
    }

    .connectButton {
        width: 100%;
    }

    .connectActions {
        align-items: stretch;
        flex-direction: column;
    }

    .quickJourney {
        grid-template-columns: 1fr;
    }

    .quickJourney li {
        grid-template-columns: 4.4rem 1fr;
    }

    .addNewGraphMessage {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .addNewGraphMessage > svg {
        justify-self: center;
    }
}