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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

header {
    text-align: center;
    color: white;
    margin-bottom: 30px;
    animation: fadeInDown 0.8s ease;
}

header h1 {
    font-size: 3em;
    margin-bottom: 10px;
    text-shadow: 3px 3px 6px rgba(0,0,0,0.3);
}

header p {
    font-size: 1.2em;
    opacity: 0.9;
}

/* Music Controller */
.music-controller {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 20px;
    margin-bottom: 30px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    animation: fadeIn 1s ease;
}

.music-info {
    text-align: center;
    color: white;
    font-size: 1.2em;
    margin-bottom: 15px;
    font-weight: bold;
}

.music-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.btn-music {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 1.5em;
    padding: 10px 20px;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-music:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.volume-slider {
    width: 150px;
    cursor: pointer;
}

#volumeLabel {
    color: white;
    font-weight: bold;
    min-width: 45px;
}

.music-select {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1em;
    cursor: pointer;
}

.music-select option {
    background: #667eea;
    color: white;
}

/* Main Content */
.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

/* Wheel Section */
.wheel-section {
    animation: fadeInLeft 1s ease;
}

.wheel-container {
    position: relative;
    width: 500px;
    height: 500px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    padding: 20px;
    border: 5px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

#wheelCanvas {
    width: 100%;
    height: 100%;
    border-radius: 50%;
}

.wheel-pointer {
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 3em;
    color: #FFD700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    z-index: 10;
    animation: bounce 1s infinite;
}

.spin-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, #FFD700, #FFA500);
    border: 5px solid white;
    color: white;
    font-size: 1.2em;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
    transition: all 0.3s ease;
    z-index: 10;
}

.spin-button:hover {
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}

.spin-button:active {
    transform: translate(-50%, -50%) scale(0.95);
}

.spin-button:disabled {
    background: #999;
    cursor: not-allowed;
}

.winner-display {
    margin-top: 30px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    text-align: center;
    color: white;
    font-size: 1.5em;
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

/* Control Panel */
.control-panel {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 25px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    animation: fadeInRight 1s ease;
}

.tab-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.tab-btn {
    flex: 1;
    padding: 12px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1em;
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.tab-btn.active {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.input-group {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

#participantInput {
    flex: 1;
    padding: 12px;
    border-radius: 10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1em;
}

#participantInput::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.btn-primary, .btn-danger, .btn-success, .btn-info {
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-size: 1em;
    cursor: pointer;
    transition: all 0.3s ease;
    color: white;
    font-weight: bold;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.btn-danger {
    background: linear-gradient(135deg, #f093fb, #f5576c);
}

.btn-success {
    background: linear-gradient(135deg, #4facfe, #00f2fe);
}

.btn-info {
    background: linear-gradient(135deg, #43e97b, #38f9d7);
}

.btn-primary:hover, .btn-danger:hover, .btn-success:hover, .btn-info:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.participant-list {
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: 15px;
}

.participant-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    margin-bottom: 8px;
    color: white;
    animation: slideIn 0.3s ease;
}

.participant-item button {
    background: rgba(255, 0, 0, 0.6);
    border: none;
    color: white;
    padding: 5px 12px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.participant-item button:hover {
    background: rgba(255, 0, 0, 0.8);
}

.action-buttons {
    display: flex;
    gap: 10px;
}

.action-buttons button {
    flex: 1;
}

/* Groups Tab */
.group-settings {
    margin-bottom: 20px;
}

.group-settings label {
    display: block;
    color: white;
    margin-bottom: 10px;
    font-weight: bold;
}

.group-settings input {
    padding: 10px;
    border-radius: 8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    width: 100%;
    margin-bottom: 15px;
}

.groups-display {
    max-height: 400px;
    overflow-y: auto;
    margin-bottom: 15px;
}

.group-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 15px;
    border-left: 5px solid #FFD700;
    animation: slideIn 0.5s ease;
}

.group-item h4 {
    color: #FFD700;
    margin-bottom: 10px;
}

.group-item ul {
    list-style: none;
    padding-left: 0;
}

.group-item li {
    color: white;
    padding: 5px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Settings Tab */
.settings-group label {
    display: block;
    color: white;
    margin-bottom: 15px;
    cursor: pointer;
}

.settings-group input[type="checkbox"] {
    margin-right: 10px;
    cursor: pointer;
}

.settings-group input[type="range"] {
    width: 100%;
    margin: 10px 0;
}

#durationLabel {
    color: white;
    font-weight: bold;
}

.color-themes {
    margin-top: 20px;
}

.color-themes h3 {
    color: white;
    margin-bottom: 15px;
}

.theme-btn {
    display: block;
    width: 100%;
    padding: 12px;
    margin-bottom: 10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1em;
}

.theme-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateX(5px);
}

/* History Section */
.history-section {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 25px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 1s ease;
}

.history-section h3 {
    color: white;
    margin-bottom: 15px;
}

.history-list {
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: 15px;
}

.history-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 8px;
    color: white;
    animation: slideIn 0.3s ease;
}

/* Confetti Canvas */
#confettiCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        transform: translateX(-20px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(-10px);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .main-content {
        grid-template-columns: 1fr;
    }
    
    .wheel-container {
        width: 400px;
        height: 400px;
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }
    
    .wheel-container {
        width: 300px;
        height: 300px;
    }
    
    .spin-button {
        width: 80px;
        height: 80px;
        font-size: 1em;
    }
    
    .music-controls {
        flex-wrap: wrap;
    }
    
    .tab-buttons {
        flex-direction: column;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}