body {
    margin: 0;
    background-color: #0d0221;
    color: #ff00ff;
    font-family: 'Courier New', Courier, monospace;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    overflow: hidden;
    transition: background-color 0.8s ease;
    touch-action: none;
}

.neon-title {
    font-size: 2.5rem;
    text-transform: uppercase;
    position: relative;
    color: #fff;
    text-shadow: 2px 2px #ff00ff, -2px -2px #00ffff;
    margin-bottom: 15px;
    letter-spacing: 4px;
    text-align: center;
    transition: all 0.5s ease;
}

.frutiger-title {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif !important;
    text-transform: none !important;
    font-weight: 600 !important;
    letter-spacing: 0px !important;
    text-shadow: 0px 2px 4px rgba(0,0,0,0.2) !important;
    background: linear-gradient(to bottom, #ffffff 0%, #a1c4fd 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.menu-layer {
    position: absolute;
    z-index: 100;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(13, 2, 33, 0.98);
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: auto;
}

.menu-layer.active {
    display: flex !important;
    z-index: 200;
}

#menu-icon-container {
    margin: 10px 0 20px 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

#menu-icon {
    width: 110px;
    height: 110px;
    object-fit: contain;
    filter: drop-shadow(0 0 15px #ff00ff);
    border-radius: 24px;
    transition: 0.2s;
}

#menu-icon:hover {
    scale: 1.1;
}

.btn-neon {
    padding: 12px 30px;
    font-size: 1.2rem;
    font-family: 'Courier New', Courier, monospace;
    font-weight: bold;
    color: #fff;
    background: transparent;
    border: 3px solid #ff00ff;
    cursor: pointer;
    box-shadow: 0 0 15px #ff00ff;
    transition: 0.2s;
    text-transform: uppercase;
    margin-top: 12px;
    width: 250px;
    z-index: 210;
    pointer-events: auto;
    border-radius: 16px;
    transition: 0.2s;
}

.btn-neon:hover {
    scale: 1.1;
}

.btn-neon:active { transform: scale(0.95); background: rgba(255, 0, 255, 0.3); }

.final-score { font-size: 1.8rem; color: #00ffff; margin: 5px 0; }
.high-score { font-size: 1rem; color: #ffff00; margin-bottom: 10px; }

.setting-item { margin: 15px 0; width: 280px; text-align: center; }
.setting-label { font-size: 1.1rem; color: #fff; display: block; margin-bottom: 8px; }
input[type=range] { width: 100%; cursor: pointer; }

#game-wrapper { display: none; flex-direction: column; align-items: center; }
#game-container {
    position: relative;
    border: 4px solid #fff;
    box-shadow: 0 0 25px #ff00ff;
    background: #000;
}

canvas { display: block; }
.ui-panel {
    display: flex;
    justify-content: space-between;
    width: 360px;
    margin-top: 20px;
    font-size: 1.2rem;
    font-weight: bold;
}

.auth-input {
    padding: 10px;
    margin: 5px 0;
    font-family: 'Courier New';
    background: #000;
    border: 2px solid #00ffff;
    color: #fff;
    text-align: center;
    width: 100%;
    outline: none;
    box-sizing: border-box;
}

.leaderboard-row {
    display: flex;
    justify-content: space-between;
    width: 280px;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    font-size: 1.1rem;
}

#status-msg, #auth-status {
    font-size: 0.8rem;
    margin-top: 5px;
    color: #7cfc00;
    height: 15px;
}