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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #e0e0e0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 1400px;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

header h1 {
    font-size: 2.5rem;
    color: #00ff88;
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.panel {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 30px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

#connection-panel {
    max-width: 500px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #00ff88;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: #fff;
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: #00ff88;
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.3);
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, #00ff88 0%, #00cc6f 100%);
    color: #1a1a2e;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 255, 136, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #e0e0e0;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.status {
    margin-top: 15px;
    padding: 10px;
    border-radius: 6px;
    text-align: center;
    font-size: 0.9rem;
}

.status.success {
    background: rgba(0, 255, 136, 0.2);
    color: #00ff88;
}

.status.error {
    background: rgba(255, 0, 0, 0.2);
    color: #ff6b6b;
}

.status.info {
    background: rgba(0, 136, 255, 0.2);
    color: #00aaff;
}

#game-panel {
    display: flex;
    gap: 30px;
}

.game-area {
    flex: 1;
    position: relative;
}

#game-canvas {
    display: block;
    background: #0a0a0a;
    border: 2px solid #00ff88;
    border-radius: 10px;
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.3);
    width: 100%;
    height: auto;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 10px;
}

.overlay.hidden {
    display: none;
}

.overlay-content {
    text-align: center;
    padding: 30px;
}

.overlay-content h2 {
    color: #00ff88;
    margin-bottom: 20px;
}

.overlay-content p {
    margin: 10px 0;
    font-size: 1.1rem;
}

kbd {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    padding: 3px 8px;
    font-family: monospace;
    font-size: 0.9rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.sidebar {
    width: 280px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.score-panel,
.controls-panel {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.score-panel h3,
.controls-panel h3 {
    color: #00ff88;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

#players-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.player-item {
    padding: 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    border-left: 3px solid;
    display: flex;
    justify-content: space-between;
}

.player-item.alive {
    opacity: 1;
}

.player-item.dead {
    opacity: 0.5;
    text-decoration: line-through;
}

.player-name {
    font-weight: 500;
}

.player-score {
    color: #00ff88;
    font-weight: 600;
}

.control-info p {
    margin: 8px 0;
    font-size: 0.9rem;
}

/* Responsive design */
@media (max-width: 1024px) {
    #game-panel {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        flex-direction: row;
    }

    .score-panel,
    .controls-panel {
        flex: 1;
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .sidebar {
        flex-direction: column;
    }
}