body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    height: 100vh;
    overflow: hidden;
}

.dashboard {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: minmax(150px, 1fr);
    gap: 20px;
    padding: 20px;
    height: calc(100vh - 40px);
    box-sizing: border-box;
}

.table-card {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transition: background-color 0.3s ease;
}

.table-card.warning {
    background-color: #FFA500;
    color: white;
}

.table-card.warning .table-number,
.table-card.warning .timer,
.table-card.warning .note {
    color: white;
}

.table-card.orange {
    background-color: #ffa500;
    color: #000;
}

.table-number {
    font-size: 4rem;
    font-weight: bold;
    color: #333;
    text-align: center;
    margin-bottom: 0.5rem;
}

.timer {
    font-size: 2.5rem;
    font-weight: bold;
    color: #333;
    text-align: center;
    margin-bottom: 0.5rem;
}

.note {
    font-size: 1.2rem;
    color: #000;
    text-align: center;
    margin-bottom: 0.5rem;
    padding: 0.5rem;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 4px;
    min-height: 2rem;
}

.input-section {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    z-index: 1000;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 10px;
}

.input-group input {
    width: 200px;
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.button-group {
    display: flex;
    gap: 10px;
}

.button-group button {
    padding: 10px 20px;
    font-size: 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    flex: 1;
}

.button-group button:first-child {
    background-color: #4CAF50;
    color: white;
}

.button-group button.remove {
    background-color: #f44336;
    color: white;
}