keyboard/static/style.css

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #000;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    background: #fff;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 0 0 2px #000;
    max-width: 400px;
    width: 100%;
}

.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding: 15px;
    background: #fff;
    border-radius: 10px;
    border: 2px solid #000;
}

#connection-status {
    font-weight: 600;
    color: #000;
}

#connection-status.connected {
    color: #000;
    font-weight: 800;
    background: #e0e0e0;
    padding: 4px 8px;
    border-radius: 4px;
}

#device-info {
    font-size: 14px;
    color: #000;
}

.numpad {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 30px;
}

.numpad-row {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.key {
    flex: 1;
    min-width: 60px;
    height: 60px;
    border: 2px solid #000;
    border-radius: 12px;
    font-size: 20px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    background: #fff;
    color: #000;
}

.key:hover {
    border-width: 3px;
}

.key:active {
    background: #000;
    color: #fff;
}

.key.pressed {
    background: #000;
    color: #fff;
    border-width: 3px;
}

.key.operator {
    background: #f0f0f0;
    color: #000;
    border: 3px solid #333;
}

.key.operator:hover {
    background: #e0e0e0;
    border-color: #000;
}

.key.special {
    background: #d0d0d0;
    color: #000;
    border: 3px solid #555;
    min-width: 120px;
}

.key.special:hover {
    background: #b0b0b0;
    border-color: #000;
}

.info-panel {
    background: #f8f8f8;
    border-radius: 10px;
    padding: 20px;
    border: 2px solid #666;
}

.info-panel h3 {
    color: #000;
    margin-bottom: 15px;
    font-size: 18px;
}

.info-panel ul {
    list-style: none;
    padding: 0;
}

.info-panel li {
    color: #000;
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.info-panel li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #000;
    font-weight: bold;
}

@media (max-width: 480px) {
    .container {
        padding: 20px;
        margin: 10px;
    }
    
    .key {
        min-width: 50px;
        height: 50px;
        font-size: 18px;
    }
    
    .key.special {
        min-width: 100px;
    }
    
    .status-bar {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}

@media (hover: none) and (pointer: coarse) {
    .key {
        min-width: 70px;
        height: 70px;
        font-size: 24px;
    }
    
    .key.special {
        min-width: 140px;
    }
}