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

body {
    font-family: 'Arial', sans-serif;
    background: url('./main-background.png') center center / cover;
    color: white;
    overflow: hidden;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.game-container {
    position: relative;
    width: 100vw;
    height: 100vh;
    border: none;
    border-radius: 0;
    overflow: hidden;
    background: #1a1a2e;
    box-shadow: none;
}

#gameCanvas {
    display: block;
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    width: 100vw;
    height: 100vh;
}

.ui-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    pointer-events: none;
}

.score-display {
    background: rgba(255, 215, 0, 0.9);
    color: #000;
    padding: 10px 17px;
    border-radius: 22px;
    font-size: 17px;
    font-weight: bold;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    box-shadow: 0 3px 10px rgba(255, 215, 0, 0.3);
    height: auto;
    min-height: 22px;
}

.boosters-display {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

.booster-indicator {
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid #51FED6;
    border-radius: 15px;
    padding: 8px 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: white;
    font-size: 14px;
    font-weight: bold;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5), 0 0 15px rgba(81, 254, 214, 0.4);
    animation: booster-pulse 2s infinite;
}

@keyframes booster-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.booster-icon {
    font-size: 16px;
}

.booster-timer {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    padding: 2px 6px;
    font-size: 12px;
    min-width: 20px;
    text-align: center;
}

/* IRYS Letter Collection System */
.irys-display {
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid #51FED6;
    border-radius: 15px;
    padding: 12px;
    margin-top: 10px;
    color: white;
    font-weight: bold;
    box-shadow: 0 0 15px rgba(81, 254, 214, 0.4);
}

.irys-word {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: 8px;
}

.letter {
    width: 30px;
    height: 30px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid #666;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: bold;
    color: #666;
    transition: all 0.3s ease;
}

.letter.collected {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    border-color: #FFD700;
    color: #000;
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
    animation: letter-glow 2s infinite;
}

@keyframes letter-glow {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.irys-progress {
    font-size: 12px;
    color: #ccc;
    text-align: center;
}

/* Balance Display */
.balance-display {
    background: rgba(81, 254, 214, 0.9);
    color: #000;
    padding: 11px 20px;
    border-radius: 26px;
    font-size: 19px;
    font-weight: bold;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    box-shadow: 0 3px 10px rgba(81, 254, 214, 0.3);
    margin-top: 0px;
    display: flex;
    align-items: center;
    gap: 11px;
    height: auto;
    min-height: 26px;
}

.balance-coin-icon {
    width: 50px !important;
    height: 50px !important;
    display: block !important;
    filter: drop-shadow(0 0 8px rgba(81, 254, 214, 0.6));
    object-fit: contain;
}

.letter-i-glow {
    font-size: 17px;
    font-weight: bold;
    color: #51FED6;
    text-shadow: 0 0 8px rgba(81, 254, 214, 0.6), 0 0 16px rgba(81, 254, 214, 0.4);
    margin-right: 5px;
}

/* Twitter Bonus System */
.mission-board-button {
    background: linear-gradient(135deg, #51FED6, #3de6c5);
    color: #000;
    border: 2px solid #51FED6;
    padding: 15px 30px;
    border-radius: 30px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 20px;
    box-shadow: 0 5px 20px rgba(81, 254, 214, 0.4), 0 0 20px rgba(81, 254, 214, 0.6);
}

.mission-board-button:hover {
    background: linear-gradient(135deg, #3de6c5, #2dd4b4);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(81, 254, 214, 0.6), 0 0 30px rgba(81, 254, 214, 0.8);
}

.mission-board-screen, .twitter-bonus-screen {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: transparent;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 300;
}



.mission-board-content {
    text-align: center;
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    color: white;
    padding: 30px;
    border-radius: 20px;
    border: 3px solid #51FED6;
    box-shadow: 0 0 30px rgba(81, 254, 214, 0.8), 0 0 20px rgba(81, 254, 214, 0.5);
    max-width: 600px;
    width: 90%;
}

.twitter-bonus-content {
    text-align: center;
    background: linear-gradient(135deg, #1DA1F2, #0d8bd9);
    color: white;
    padding: 40px;
    border-radius: 20px;
    border: 3px solid #51FED6;
    box-shadow: 0 0 30px rgba(29, 161, 242, 0.8), 0 0 20px rgba(81, 254, 214, 0.5);
    max-width: 450px;
    width: 90%;
}

.twitter-bonus-content h2 {
    font-size: 2.2em;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.twitter-form {
    margin: 25px 0;
}

#twitter-username {
    width: 100%;
    padding: 12px;
    border: 2px solid #fff;
    border-radius: 25px;
    font-size: 16px;
    text-align: center;
    margin-bottom: 15px;
    outline: none;
    transition: border-color 0.3s ease;
}

#twitter-username:focus {
    border-color: #FFD700;
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.claim-button {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: #000;
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
}

.claim-button:hover {
    background: linear-gradient(135deg, #FFA500, #FF8C00);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.6);
}

.bonus-message {
    margin: 20px 0;
    padding: 15px;
    border-radius: 10px;
    font-weight: bold;
    font-size: 16px;
    min-height: 20px;
}

.bonus-message.success {
    background: rgba(76, 175, 80, 0.9);
    color: white;
    border: 2px solid #4CAF50;
}

.bonus-message.error {
    background: rgba(244, 67, 54, 0.9);
    color: white;
    border: 2px solid #F44336;
}

.close-button {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid white;
    padding: 10px 25px;
    border-radius: 25px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 20px;
}

.close-button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* Mission Board Styles */
.missions-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin: 20px 0;
}

.mission-card {
    background: rgba(26, 26, 46, 0.8);
    border: 2px solid #51FED6;
    border-radius: 15px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(81, 254, 214, 0.2);
}

.mission-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(81, 254, 214, 0.4);
}

.mission-icon {
    font-size: 2.5em;
    min-width: 60px;
    text-align: center;
}

.mission-info {
    flex: 1;
    text-align: left;
}

.mission-info h3 {
    color: #51FED6;
    margin: 0 0 8px 0;
    font-size: 1.2em;
}

.mission-info p {
    margin: 0 0 8px 0;
    color: #ccc;
    font-size: 0.9em;
}

.mission-reward {
    color: #FFD700;
    font-weight: bold;
    font-size: 0.9em;
}

.mission-timer {
    color: #FFA500;
    font-size: 0.8em;
    margin-top: 5px;
    font-weight: bold;
}

.mission-btn {
    background: linear-gradient(135deg, #51FED6, #3de6c5);
    color: #000;
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 120px;
    box-shadow: 0 2px 10px rgba(81, 254, 214, 0.3);
}

.mission-btn:hover {
    background: linear-gradient(135deg, #3de6c5, #2dd4b4);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(81, 254, 214, 0.5);
}

.mission-btn:disabled {
    background: rgba(100, 100, 100, 0.5);
    color: rgba(255, 255, 255, 0.5);
    cursor: not-allowed;
    transform: none;
}

.mission-btn:disabled:hover {
    transform: none;
    box-shadow: 0 2px 10px rgba(81, 254, 214, 0.3);
}

/* Game Entry Error */
.game-entry-error {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 400;
}

.error-content {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    max-width: 480px;
    width: 90%;
    box-shadow: 0 0 30px rgba(231, 76, 60, 0.8);
}

.error-content h3 {
    font-size: 1.5em;
    margin-bottom: 15px;
}

.error-content p {
    margin: 10px 0;
    font-size: 16px;
}

.error-content button {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid white;
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    margin-top: 15px;
    transition: all 0.3s ease;
}

.error-content button:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* IRYS Reward Message */
.irys-reward-message {
    font-size: 1.2em;
    font-weight: bold;
    margin: 15px 0;
    padding: 15px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    border: 2px solid #FFD700;
    animation: reward-pulse 2s infinite;
}

@keyframes reward-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.irys-complete-screen {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: transparent;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 200;
}



.irys-complete-content {
    text-align: center;
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: #000;
    padding: 40px;
    border-radius: 20px;
    border: 3px solid #51FED6;
    box-shadow: 0 0 30px rgba(255, 215, 0, 0.8), 0 0 20px rgba(81, 254, 214, 0.5);
    animation: celebration-pulse 1s infinite;
}

@keyframes celebration-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.irys-complete-word {
    font-size: 3em;
    font-weight: bold;
    margin: 20px 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    letter-spacing: 10px;
}

.continue-button {
    background: linear-gradient(135deg, #51FED6, #3de6c5);
    color: #000;
    border: 2px solid #51FED6;
    padding: 15px 30px;
    border-radius: 30px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 20px;
    box-shadow: 0 5px 20px rgba(81, 254, 214, 0.4), 0 0 20px rgba(81, 254, 214, 0.6);
}

.continue-button:hover {
    background: linear-gradient(135deg, #3de6c5, #2dd4b4);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(81, 254, 214, 0.6), 0 0 30px rgba(81, 254, 214, 0.8);
}

/* Mobile Adaptation for IRYS Display */
@media (max-width: 850px) {
    .irys-display {
        padding: 6px;
        margin-top: 3px;
    }
    
    .letter {
        width: 20px;
        height: 20px;
        font-size: 12px;
    }
    
    .irys-progress {
        font-size: 11px;
    }
    
    .irys-complete-content {
        padding: 30px 20px;
        margin: 20px;
    }
    
    .irys-complete-word {
        font-size: 2em;
        letter-spacing: 5px;
    }
    
    .continue-button {
        padding: 12px 25px;
        font-size: 16px;
    }
    
    .balance-display {
        font-size: 12px;
        padding: 4px 8px;
        margin-top: 5px;
        border-radius: 15px;
    }
    
    .twitter-bonus-button {
        padding: 10px 20px;
        font-size: 14px;
        margin-top: 10px;
    }
    
    .twitter-bonus-content {
        padding: 30px 20px;
        margin: 20px;
    }
    
    .twitter-bonus-content h2 {
        font-size: 1.8em;
    }
    
    #twitter-username {
        font-size: 14px;
        padding: 10px;
    }
    
    .claim-button {
        padding: 10px 25px;
        font-size: 16px;
    }
    
    .bonus-message {
        font-size: 14px;
        padding: 12px;
    }
    
    .error-content {
        padding: 25px 20px;
        margin: 20px;
    }
    
    .error-content h3 {
        font-size: 1.3em;
    }
    
    .error-content p {
        font-size: 14px;
    }
    
    .irys-reward-message {
        font-size: 1em;
        padding: 12px;
        margin: 12px 0;
    }
    
    /* Mission Board Mobile Styles */
    .mission-board-button {
        padding: 10px 20px;
        font-size: 14px;
        margin-top: 10px;
    }
    
    .mission-board-content {
        max-width: 95%;
        padding: 20px;
        margin: 10px;
    }
    
    .mission-board-content h2 {
        font-size: 1.5em;
    }
    
    .missions-list {
        gap: 15px;
    }
    
    .mission-card {
        flex-direction: column;
        text-align: center;
        gap: 10px;
        padding: 15px;
    }
    
    .mission-info {
        text-align: center;
    }
    
    .mission-icon {
        font-size: 2em;
        min-width: auto;
    }
    
    .mission-info h3 {
        font-size: 1.1em;
    }
    
    .mission-info p {
        font-size: 0.85em;
    }
    
    .mission-reward {
        font-size: 0.85em;
    }
    
    .mission-timer {
        font-size: 0.75em;
    }
    
    .mission-btn {
        padding: 8px 16px;
        font-size: 13px;
        min-width: 100px;
    }
}

.restart-btn {
    background: #e74c3c;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    pointer-events: auto;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

.restart-btn:hover {
    background: #c0392b;
    transform: translateY(-2px);
}

.start-screen, .game-over-screen {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 26, 46, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
}



.start-content, .game-over-content {
    text-align: center;
    background: rgba(26, 26, 46, 0.8);
    padding: 40px;
    border-radius: 20px;
    border: 2px solid #51FED6;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 20px rgba(81, 254, 214, 0.5), 0 0 40px rgba(81, 254, 214, 0.3);
    max-width: 480px;
}

.start-content h1 {
    font-size: 2.2em;
    margin-bottom: 20px;
    color: #51FED6;
    text-shadow: 0 2px 10px rgba(81, 254, 214, 0.5), 0 0 20px rgba(81, 254, 214, 0.8);
}

.game-over-content h2 {
    font-size: 2em;
    margin-bottom: 20px;
    color: #e74c3c;
    text-shadow: 0 2px 10px rgba(231, 76, 60, 0.5);
}

.mascot-preview {
    margin: 20px 0;
    display: flex;
    justify-content: center;
}

.mascot-preview img {
    filter: drop-shadow(0 0 30px rgba(255, 255, 255, 0.6)) 
            drop-shadow(0 0 50px rgba(255, 255, 255, 0.4))
            drop-shadow(0 0 70px rgba(255, 255, 255, 0.2));
    animation: float 3s ease-in-out infinite, glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    0% { 
        filter: drop-shadow(0 0 30px rgba(255, 255, 255, 0.6)) 
                drop-shadow(0 0 50px rgba(255, 255, 255, 0.4))
                drop-shadow(0 0 70px rgba(255, 255, 255, 0.2));
    }
    100% { 
        filter: drop-shadow(0 0 40px rgba(255, 255, 255, 0.8)) 
                drop-shadow(0 0 60px rgba(255, 255, 255, 0.6))
                drop-shadow(0 0 80px rgba(255, 255, 255, 0.3));
    }
}

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

.controls-info {
    background: transparent;
    padding: 12px;
    border-radius: 10px;
    margin: 15px 0;
    border: 1px solid rgba(81, 254, 214, 0.5);
}

.start-button, .restart-button {
    background: linear-gradient(135deg, #51FED6, #3de6c5);
    color: #000;
    border: 2px solid #51FED6;
    padding: 15px 30px;
    border-radius: 30px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 20px;
    box-shadow: 0 5px 20px rgba(81, 254, 214, 0.4), 0 0 20px rgba(81, 254, 214, 0.6);
}

.start-button:hover, .restart-button:hover {
    background: linear-gradient(135deg, #3de6c5, #2dd4b4);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(81, 254, 214, 0.6), 0 0 30px rgba(81, 254, 214, 0.8);
}

.start-content p, .game-over-content p {
    margin: 10px 0;
    font-size: 15px;
    line-height: 1.5;
}

#final-score {
    color: #4a90e2;
    font-weight: bold;
    font-size: 1.2em;
}

/* Mobile touch controls */
.mobile-controls {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: none;
    z-index: 15;
    gap: 20px;
}

.touch-button {
    width: 80px;
    height: 80px;
    background: rgba(81, 254, 214, 0.8);
    border: 3px solid #51FED6;
    border-radius: 50%;
    color: #000;
    font-size: 32px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    user-select: none;
    transition: all 0.2s ease;
    box-shadow: 0 4px 15px rgba(81, 254, 214, 0.3), 0 0 20px rgba(81, 254, 214, 0.5);
}

.touch-button:active {
    background: rgba(81, 254, 214, 1);
    transform: scale(0.95);
}

.touch-button:hover {
    background: rgba(81, 254, 214, 1);
}

/* Responsive design for smaller screens */
@media (max-width: 850px) {
    body {
        padding: 10px;
    }
    
    .game-container {
        width: 100vw;
        height: 100vh;
        border-radius: 0;
        border: none;
    }
    
    #gameCanvas {
        width: 100%;
        height: 100%;
    }
    
    .mobile-controls {
        display: flex;
    }
    
    .ui-overlay {
        padding: 8px;
    }
    
    .score-display {
        font-size: 12px;
        padding: 4px 8px;
        border-radius: 15px;
    }
    
    .restart-btn {
        padding: 4px 8px;
        font-size: 10px;
        border-radius: 12px;
    }
    
    .start-content, .game-over-content {
        max-width: 90%;
        padding: 25px 20px;
        margin: 0 10px;
    }
    
    .start-content h1 {
        font-size: 1.6em;
        margin-bottom: 12px;
    }
    
    .game-over-content h2 {
        font-size: 1.4em;
        margin-bottom: 12px;
    }
    
    .mascot-preview img {
        width: 100px;
        height: 100px;
    }
    
    .controls-info {
        padding: 12px;
        margin: 15px 0;
    }
    
    .start-button, .restart-button {
        padding: 10px 20px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .ui-overlay {
        padding: 5px;
    }
    
    .start-content, .game-over-content {
        padding: 15px 10px;
        max-width: 95%;
        margin: 5px;
    }
    
    .start-content h1 {
        font-size: 1.2em;
        margin-bottom: 8px;
    }
    
    .game-over-content h2 {
        font-size: 1.1em;
        margin-bottom: 8px;
    }
    
    .mascot-preview img {
        width: 60px;
        height: 60px;
    }
    
    .touch-button {
        width: 70px;
        height: 70px;
        font-size: 28px;
    }
    
    .score-display {
        font-size: 11px;
        padding: 3px 6px;
        border-radius: 12px;
    }
    
    .balance-display {
        font-size: 11px;
        padding: 3px 6px;
        border-radius: 12px;
    }
    
    .restart-btn {
        padding: 3px 6px;
        font-size: 9px;
        border-radius: 10px;
    }
    
    .irys-display {
        padding: 4px;
        margin-top: 2px;
    }
    
    .letter {
        width: 16px;
        height: 16px;
        font-size: 10px;
    }
    
    .irys-progress {
        font-size: 9px;
    }
    
    .start-button, .restart-button {
        padding: 6px 12px;
        font-size: 11px;
    }
    
    .controls-info {
        padding: 6px;
        margin: 8px 0;
        font-size: 12px;
    }
    
    .start-content p, .game-over-content p {
        font-size: 12px;
        margin: 6px 0;
    }
    
    .booster-indicator {
        padding: 4px 6px;
        border-radius: 8px;
    }
    
    .booster-icon {
        font-size: 12px;
    }
    
    .booster-timer {
        font-size: 10px;
    }
}

/* Game Entry Error Overlay */
.game-entry-error {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.error-content {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    border: 2px solid #e74c3c;
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    max-width: 400px;
    box-shadow: 0 10px 30px rgba(231, 76, 60, 0.5);
}

.error-content h3 {
    color: #e74c3c;
    margin-bottom: 15px;
    font-size: 1.5em;
}

.error-content p {
    color: #fff;
    margin: 10px 0;
    line-height: 1.4;
}

.error-content button {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    margin-top: 20px;
    transition: all 0.3s ease;
}

.error-content button:hover {
    background: linear-gradient(135deg, #c0392b, #a93226);
    transform: translateY(-2px);
}

/* Score Reward Notification */
.score-reward-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    animation: slideInRight 0.5s ease-out, fadeOut 0.5s ease-in 2.5s forwards;
}

.reward-content {
    background: linear-gradient(135deg, #51FED6, #00d4aa);
    color: #000;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(81, 254, 214, 0.4);
    text-align: center;
    min-width: 200px;
    border: 2px solid #51FED6;
}

.reward-content h3 {
    font-size: 1.2em;
    margin-bottom: 10px;
    font-weight: bold;
}

.reward-content p {
    margin: 5px 0;
    font-size: 0.9em;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}