.card-playground-shell {
    padding-top: 1rem;
    padding-bottom: 3rem;
}

.card-playground-header {
    margin: 0 auto 1rem;
    max-width: 64rem;
    text-align: center;
}

.card-playground-header h1 {
    margin-bottom: 0.35rem;
}

.card-playground-header p {
    margin-bottom: 0.75rem;
}

.card-playground-layout {
    align-items: flex-start;
    gap: 1rem;
}

.card-playground-sidebar,
.card-playground-stage-panel {
    background: rgba(0, 0, 0, 0.42);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    padding: 0.75rem;
}

.card-control-group {
    background: rgba(14, 18, 24, 0.84);
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: 0.4rem;
    margin-bottom: 0.7rem;
    padding: 0.55rem;
}

.card-control-group h3 {
    font-size: 0.92em;
    margin-bottom: 0.35rem;
}

.card-control-group label {
    display: block;
    font-size: 0.54em;
    letter-spacing: 0.07em;
    margin-bottom: 0.2rem;
    text-transform: uppercase;
}

.card-control-group input,
.card-control-group select {
    background: rgba(19, 23, 32, 0.9);
    border: 1px solid rgba(67, 229, 251, 0.35);
    border-radius: 0.32rem;
    color: #ecfbff;
    font-family: Consolas, Menlo, Monaco, monospace;
    font-size: 0.58em;
    margin-bottom: 0.35rem;
    padding: 0.45rem;
    width: 100%;
}

.card-actions {
    display: grid;
    gap: 0.35rem;
    align-content: start;
}

.card-actions + .card-actions {
    margin-top: 0.55rem;
}

.card-actions-two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card-actions-three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-actions button {
    background: linear-gradient(120deg, rgba(67, 229, 251, 0.24), rgba(251, 199, 67, 0.2));
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: 0.32rem;
    color: #f4fdff;
    cursor: pointer;
    font-size: 0.52em;
    font-weight: bold;
    letter-spacing: 0.04em;
    padding: 0.45rem 0.24rem;
    text-transform: uppercase;
}

.card-actions button:hover {
    border-color: rgba(98, 251, 67, 0.7);
}

.card-status {
    border-left: 3px solid rgba(67, 229, 251, 0.75);
    font-size: 0.57em;
    line-height: 1.35;
    margin-bottom: 0.7rem;
    padding-left: 0.45rem;
}

.card-data-grid {
    display: grid;
    gap: 0.4rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card-data-item {
    background: rgba(12, 15, 21, 0.88);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 0.35rem;
    padding: 0.45rem;
}

.card-data-item span {
    color: #b5cad8;
    display: block;
    font-size: 0.5em;
    letter-spacing: 0.05em;
    margin-bottom: 0.2rem;
    text-transform: uppercase;
}

.card-data-item strong {
    color: #edf8ff;
    display: block;
    font-size: 0.64em;
    line-height: 1.35;
}

.card-data-item-wide {
    grid-column: 1 / -1;
}

.card-stage-wrap {
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.4rem;
    margin-bottom: 0.65rem;
    overflow: hidden;
    position: relative;
}

#card-stage-canvas {
    background: radial-gradient(circle at 20% 15%, #2b3640, #121820 58%, #090c11);
    display: block;
    height: 62vh;
    width: 100%;
}

.card-camera-toolbar {
    display: grid;
    gap: 0.3rem;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    left: 0.5rem;
    position: absolute;
    top: 0.5rem;
    width: calc(100% - 1rem);
}

.card-camera-toolbar button {
    background: rgba(12, 18, 28, 0.8);
    border: 1px solid rgba(121, 245, 255, 0.5);
    border-radius: 0.28rem;
    color: #e9f9ff;
    cursor: pointer;
    font-size: 0.5em;
    font-weight: bold;
    letter-spacing: 0.05em;
    padding: 0.3rem 0.24rem;
    text-transform: uppercase;
}

.card-camera-toolbar button:hover {
    border-color: rgba(98, 251, 67, 0.75);
}

.card-camera-help {
    background: rgba(0, 0, 0, 0.62);
    border: 1px solid rgba(121, 245, 255, 0.3);
    border-radius: 0.32rem;
    bottom: 0.45rem;
    color: #dbe9f5;
    font-size: 0.5em;
    left: 0.45rem;
    line-height: 1.35;
    padding: 0.3rem 0.4rem;
    position: absolute;
}

.card-camera-help strong {
    color: #ebfcff;
}

.card-game-readout {
    background: rgba(14, 18, 24, 0.84);
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: 0.4rem;
    padding: 0.55rem;
}

.card-game-readout h3 {
    font-size: 0.98em;
    margin-bottom: 0.25rem;
}

.card-game-readout p {
    color: #d8ebf7;
    font-size: 0.58em;
    line-height: 1.4;
    margin: 0;
}

@media (max-width: 1120px) {
    #card-stage-canvas {
        height: 44vh;
    }

    .card-actions-three {
        grid-template-columns: 1fr;
        row-gap: 0.6rem;
    }
}

@media (max-width: 1024px) {
    .card-actions-two,
    .card-data-grid {
        grid-template-columns: 1fr;
    }

    .card-actions-two {
        row-gap: 0.6rem;
    }

    .card-camera-toolbar {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .card-camera-help {
        font-size: 0.48em;
        max-width: calc(100% - 0.9rem);
    }
}