:root {
    --bg-color: #0b0c0f;
    --accent-color: #00f2ff;
    --text-color: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glow-shadow: 0 0 20px rgba(0, 242, 255, 0.5);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Outfit', sans-serif;
    overflow: hidden;
    height: 100vh;
    width: 100vw;
}

#game-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#ui-container {
    position: relative;
    z-index: 10;
    pointer-events: none;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2rem;
}

#score-card {
    align-self: flex-start;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.label {
    font-size: 0.7rem;
    letter-spacing: 0.2rem;
    opacity: 0.6;
    font-weight: 300;
}

#fps-counter {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: var(--glass-bg);
    backdrop-filter: blur(5px);
    border: 1px solid var(--glass-border);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-family: monospace;
    font-size: 0.8rem;
    letter-spacing: 1px;
    opacity: 0.8;
}

#leaderboard {
    position: absolute;
    top: 5rem;
    right: 2rem;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
    min-width: 260px;
}

#leaderboard-list {
    list-style: none;
    font-size: 0.9rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

#leaderboard-list li {
    display: flex;
    justify-content: space-between;
    opacity: 0.9;
}

#leaderboard-list li span.score {
    color: var(--accent-color);
    font-weight: 700;
}

#score-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
    text-shadow: var(--glow-shadow);
}

#message-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: auto;
    /* Re-enable pointer events for the form inside */
    transition: opacity 0.5s ease-in-out, visibility 0.5s ease-in-out;
}

#message-container.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

#main-title {
    font-size: 4rem;
    letter-spacing: 0.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #fff 0%, var(--accent-color) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 2rem;
    opacity: 0.9;
}

#start-form {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

#name-input {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-color);
    font-family: inherit;
    font-size: 1.2rem;
    padding: 1rem 1.5rem;
    border-radius: 30px;
    width: 300px;
    text-align: center;
    outline: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

#name-input:focus {
    border-color: var(--accent-color);
    box-shadow: var(--glow-shadow);
    background: rgba(255, 255, 255, 0.1);
}

#name-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

#prompt {
    font-size: 1rem;
    letter-spacing: 0.1rem;
    opacity: 0.5;
    animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 0.3;
        transform: scale(0.98);
    }

    50% {
        opacity: 0.7;
        transform: scale(1.02);
    }
}