:root {
    /* Muted color palette with similar brightness */
    --green: #388E3C;
    --red: #D32F2F;
    --yellow: #FBC02D;
    --blue: #1976D2;
    --green-light: #4CAF50;
    --red-light: #F44336;
    --yellow-light: #FFEB3B;
    --blue-light: #2196F3;
    --dark-bg: #263238;
    --darker-bg: #1E272C;
    --light-text: #ECEFF1;
    --white: #FFFFFF;
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-image: url('space-comet-planet-stars-digital-art-hd-wallpaper-uhdpaper.com-149@5@c\ \(1\).jpg');
    background-position: center;
    background-color: #1a1a2e;
    background-size: cover;
    background-repeat: no-repeat;
    color: #333;
    margin: 0;
    padding: 0;
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5); /* Dark overlay */
    z-index: -1;
}

/* Scoreboard Container */
.scoreboard-container {
    width: 280px;
    background-color: var(--dark-bg);
    color: var(--light-text);
    padding: 20px;
    box-shadow: 4px 0 10px rgba(0, 0, 0, 0.2);
    z-index: 10;
}

.scoreboard {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.scoreboard h2 {
    font-size: 1.3rem;
    margin-bottom: 25px;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.scoreboard h2 i {
    color: var(--yellow);
}

#players-list {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 25px;
    max-height: 300px;
    overflow-y: auto;
    padding-right: 5px;
}

/* Scrollbar styling */
#players-list::-webkit-scrollbar {
    width: 6px;
}

#players-list::-webkit-scrollbar-track {
    background: var(--darker-bg);
    border-radius: 3px;
}

#players-list::-webkit-scrollbar-thumb {
    background: var(--blue);
    border-radius: 3px;
}

.player-score {
    display: flex;
    justify-content: space-between;
    padding: 12px 15px;
    background-color: var(--darker-bg);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.player-score:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.player-score .name {
    font-weight: 500;
    color: var(--white);
}

.player-score .level {
    background-color: var(--blue);
    color: white;
    padding: 3px 10px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.8rem;
    min-width: 60px;
    text-align: center;
}

.current-player {
    border-left: 4px solid var(--yellow);
    background-color: #0c83d7 !important;
}

/* Game info section */
.game-info {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
}

.info-box {
    flex: 1;
    background-color: var(--darker-bg);
    padding: 15px;
    border-radius: 8px;
    text-align: center;
}

.info-box .label {
    font-size: 0.7rem;
    color: var(--light-text);
    opacity: 0.8;
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.info-box .value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--white);
}

/* Controls */
.controls {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.btn {
    border: none;
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 500;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.play-btn {
    background-color: var(--blue);
    color: rgb(255, 255, 255);
}

.play-btn:hover {
    background-color: var(--blue-light);
    transform: translateY(-2px);
}

.mode-btn {
    background-color: var(--yellow);
    color: #333;
}

.mode-btn:hover {
    background-color: var(--yellow-light);
    transform: translateY(-2px);
}

.reset-btn {
    background-color: var(--red);
    color: white;
}

.reset-btn:hover {
    background-color: var(--red-light);
    transform: translateY(-2px);
}

.strict-on {
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

/* Game Container */
.game-container {
    flex: 1;
    padding: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

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

.header h1 {
    font-size: 3.5rem;
    color: cyan;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-weight: 600;
}

.header h1 span {
    color: var(--blue);
    font-weight: 400;
}

/* Player Input */
.player-input {
    margin-bottom: 30px;
    width: 100%;
    max-width: 400px;
}

.input-container {
    display: flex;
    align-items: center;
    background-color: white;
    border-radius: 50px;
    padding: 5px 20px;
    box-shadow: var(--shadow);
    border: 2px solid var(--dark-bg);
}

.input-container i {
    color: var(--black);
    margin-right: 15px;
    font-size: 1.2rem;
}

.player-input input {
    flex: 1;
    padding: 12px 0;
    border: none;
    background: transparent;
    font-family: inherit;
    font-size: 1rem;
    color: var(--dark-bg);
    outline: none;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.player-input input::placeholder {
    color: #aaa;
    text-transform: none;
    letter-spacing: normal;
}

/* Game Board */
.game-board {
    position: relative;
    width: 100%;
    max-width: 400px;
    height: 400px;
    margin: 0 auto 30px;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 10px solid var(--dark-bg);
}

.color-btn {
    position: absolute;
    width: 50%;
    height: 50%;
    opacity: 0.93;
    transition: all 0.08s ease-out;
    filter: saturate(0.9) brightness(0.97);
    border: 1px solid rgba(0, 0, 0, 0.897);
}

#green {
    top: 0;
    left: 0;
    background-color: #21ff2c;
}

#red {
    top: 0;
    right: 0;
    background-color: #ec0707;
}

#yellow {
    bottom: 0;
    left: 0;
    background-color: #fcf409;
}

#blue {
    bottom: 0;
    right: 0;
    background-color: #0a7efa;
}

.color-btn.active {
    opacity: 0.99;
    filter: saturate(1) brightness(1.03);
    transition: none;
    box-shadow: inset 0 0 15px rgba(255, 255, 255, 0.801);
    animation: subtleFlash 0.12s;
}

@keyframes subtleFlash {
    0% { opacity: 0.93; filter: saturate(0.9) brightness(0.97); }
    50% { opacity: 0.99; filter: saturate(1) brightness(1.03); }
    100% { opacity: 0.93; filter: saturate(0.9) brightness(0.97); }
}

.color-btn:hover {
    opacity: 0.96;
    filter: saturate(0.95) brightness(0.99);
}

.center-circle {
    position: absolute;
    width: 30%;
    height: 30%;
    background-color: #2c3a42;
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.4);
    z-index: 2;
}

.brand {
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Message Box */
.message-box {
    width: 100%;
    max-width: 400px;
    background-color: var(--dark-bg);
    padding: 15px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.message-content {
    font-size: 1.1rem;
    font-weight: 500;
    color: white;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Confetti */
.confetti {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: var(--confetti-color);
    opacity: 0;
    animation: confetti-fall 3s ease-in-out forwards;
    z-index: 100;
}

@keyframes confetti-fall {
    0% {
        transform: translateY(-100px) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(1000px) rotate(720deg);
        opacity: 0;
    }
}

/* Responsive */
@media (max-width: 900px) {
    body {
        flex-direction: column;
    }
    
    .scoreboard-container {
        width: 100%;
        padding: 20px;
    }
    
    .game-container {
        padding: 20px;
    }
    
    .header h1 {
        font-size: 2.5rem;
    }
    
    .game-board {
        height: 300px;
        max-width: 300px;
    }
}

@media (max-width: 500px) {
    .header h1 {
        font-size: 2rem;
    }
    
    .btn {
        padding: 10px;
        font-size: 0.8rem;
    }
    
    .info-box .value {
        font-size: 1.3rem;
    }
}