body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    overflow: hidden;
}

#game-container {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
}

#start-screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

#start-screen h1 {
    color: white;
    margin-bottom: 20px;
}

#player-setup {
    display: flex;
    flex-direction: column;
    align-items: center;
}

#nickname-input {
    margin-bottom: 10px;
    padding: 5px;
    width: 200px;
}

#skin-selector {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}

.skin-option {
    font-size: 24px;
    background: none;
    border: 2px solid white;
    border-radius: 50%;
    cursor: pointer;
    padding: 5px;
}

.skin-option.active {
    border-color: yellow;
}

#start-game {
    padding: 10px 20px;
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
}

#game-canvas {
    flex-grow: 1;
    background-color: #87CEEB;
}

#chat-container {
    position: absolute;
    bottom: 10px;
    left: 10px;
    width: 300px;
    background-color: rgba(255,255,255,0.8);
    border-radius: 10px;
}

#chat-messages {
    height: 200px;
    overflow-y: auto;
    padding: 10px;
}

#chat-input {
    width: calc(100% - 60px);
    padding: 5px;
    margin: 5px;
}

#send-chat {
    width: 50px;
    padding: 5px;
}

#leaderboard {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: rgba(255,255,255,0.8);
    padding: 10px;
    border-radius: 10px;
}

#admin-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
    z-index: 1000;
}

.system-message {
    color: red;
    font-style: italic;
}

.global-notification {
    position: fixed;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #ff6b6b;
    color: white;
    padding: 10px;
    border-radius: 5px;
    z-index: 1000;
    text-align: center;
}

#admin-panel select, 
#admin-panel textarea {
    width: 100%;
    margin-bottom: 10px;
}