.ws-dashboard {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 16px 40px;
    color: #f7ead4;
}

.ws-dashboard__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 28px;
    padding-bottom: 14px;
    border-bottom: 3px solid #95c11f;
    color: #1a1a2e;
    letter-spacing: -.02em;
}

.ws-dashboard__empty {
    color: #888;
    font-style: italic;
    padding: 40px 0;
    text-align: center;
}

.ws-device {
    background: #fff;
    border-radius: 12px;
    margin-bottom: 28px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, .08);
    border: 1px solid #e8edf5;
}

.ws-device__header {
    background: #f7ead4;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.ws-device__serial {
    font-weight: 600;
    font-size: .9rem;
    color: #355030;
    letter-spacing: .06em;
    font-family: monospace;
}

.ws-device__last-seen {
    margin-left: auto;
    font-size: .78rem;
    color: #355030;
}

.ws-online,
.ws-offline {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: .7rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: .06em;
    flex-shrink: 0;
}

.ws-online::before,
.ws-offline::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.ws-online {
    background: rgba(34, 197, 94, .15);
    color: #4ade80;
}

.ws-online::before {
    background: #4ade80;
    box-shadow: 0 0 6px #4ade80;
}

.ws-offline {
    background: rgba(239, 68, 68, .15);
    color: #f87171;
}

.ws-offline::before {
    background: #f87171;
}

.ws-channels {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1px;
    background: #edf0f5;
}

.ws-channel {
    background: #fff;
    padding: 20px 18px 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: background .15s;
}

.ws-channel:hover {
    background: #f8fafd;
}

.ws-channel__label {
    font-size: .72rem;
    color: #355030;
    text-transform: uppercase;
    letter-spacing: .07em;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ws-channel__value {
    font-size: 2rem;
    font-weight: 800;
    color: #355030;
    line-height: 1;
    letter-spacing: -.03em;
    margin: 4px 0 2px;
}

.ws-channel__value--error {
    font-size: 1rem;
    font-weight: 600;
    color: #ef4444;
}

.ws-channel__unit {
    font-size: .95rem;
    font-weight: 400;
    color: #7a8fa6;
    margin-left: 3px;
}

.ws-channel__alarm {
    font-size: .72rem;
    color: #f59e0b;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.ws-channel__toggle-chart {
    margin-top: 10px;
    background: none;
    border: 1px solid #d1dce8;
    color: #5a7a9a;
    border-radius: 6px;
    padding: 5px 12px;
    font-size: .75rem;
    cursor: pointer;
    align-self: flex-start;
    transition: all .15s;
    font-weight: 500;
}

.ws-channel__toggle-chart:hover {
    background: #2563eb;
    border-color: #2563eb;
    color: #fff;
}

.ws-channel__chart-wrap {
    margin-top: 10px;
    border-top: 1px solid #edf0f5;
    padding-top: 10px;
}

.ws-channel__chart-controls {
    display: flex;
    gap: 4px;
    margin-bottom: 8px;
}

.ws-btn {
    background: #f0f4f8;
    border: 1px solid #dde3ec;
    border-radius: 6px;
    padding: 3px 10px;
    font-size: .72rem;
    cursor: pointer;
    transition: all .15s;
    font-weight: 500;
    color: #5a7a9a;
}

.ws-btn--active,
.ws-btn:hover {
    background: #2563eb;
    color: #fff;
    border-color: #2563eb;
}

.ws-dashboard__refresh {
    text-align: right;
    color: #aab8c8;
    margin-top: 8px;
    font-size: .78rem;
}

@media (max-width: 600px) {
    .ws-channels {
        grid-template-columns: 1fr 1fr;
    }

    .ws-channel__value {
        font-size: 1.7rem;
    }

    .ws-device__last-seen {
        display: none;
    }
}

@media (max-width: 380px) {
    .ws-channels {
        grid-template-columns: 1fr;
    }
}