/* Zero-margin App Canvas */
body.ds-quiz-canvas {
    margin: 0;
    padding: 0;
    background: #0d1b2a;
    color: #ffffff;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

#ds-quiz-player-app, #ds-quiz-host-app {
    width: 100%;
    max-width: 800px;
    padding: 20px;
    box-sizing: border-box;
    text-align: center;
}

.ds-card {
    background: #1b263b;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

.centre-badge {
    display: inline-block;
    background: #e0e1dd;
    color: #1b263b;
    padding: 4px 12px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

#pin-input, #nickname-input {
    width: 100%;
    padding: 14px;
    margin: 10px 0;
    font-size: 1.2rem;
    border-radius: 8px;
    border: none;
    box-sizing: border-box;
    text-align: center;
}

.ds-btn {
    width: 100%;
    padding: 16px;
    font-size: 1.2rem;
    font-weight: bold;
    background: #0077b6;
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    margin-top: 10px;
}

/* Mobile Game Buttons Grid */
#game-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    height: 70vh;
}

.ds-answer-btn {
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: transform 0.1s ease;
}

.ds-answer-btn:active {
    transform: scale(0.96);
}

.red { background-color: #e63946; }
.blue { background-color: #1d3557; }
.yellow { background-color: #f4a261; }
.green { background-color: #2a9d8f; }

.ds-correct { color: #2a9d8f; }
.ds-incorrect { color: #e63946; }

.ds-player-chip {
    display: inline-block;
    background: #415a77;
    padding: 8px 16px;
    margin: 5px;
    border-radius: 20px;
}