@import url('https://fonts.googleapis.com/css2?family=Comfortaa:wght@300;400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Black+Ops+One&display=swap');

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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    color: white;
    overflow: hidden;
}

.game-container {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 0;
    padding: 0;
    box-shadow: none;
    text-align: center;
    width: 100vw;
    height: 100vh;
    position: relative;
    overflow: hidden;
}

.game-header h1 {
    font-size: 3.5rem;
    margin: 0;
    padding: 20px 0;
    font-family: 'Black Ops One', cursive;
    text-shadow: none;
    background: linear-gradient(45deg, #C0C0C0, #2F2F2F, #C0C0C0);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    font-weight: 400;
    letter-spacing: 3px;
    filter: none;
    animation: gradientShift 3s ease-in-out infinite;
    text-transform: uppercase;
    -webkit-text-stroke: none;
}

.score-board {
    position: absolute;
    top: 20px;
    left: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Comfortaa', sans-serif;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 50;
    min-width: 200px;
    text-align: center;
    gap: 20px;
}

.opti-board {
    position: absolute;
    top: 80px;
    left: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Comfortaa', sans-serif;
    background: rgba(0, 0, 0, 0.7);
    color: #4ecdc4;
    padding: 8px 16px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(78, 205, 196, 0.3);
    z-index: 50;
    min-width: 200px;
    text-align: center;
    gap: 20px;
}

#obstacleSpeedIndicator {
    color: #ff6b6b;
    font-weight: 700;
    transition: color 0.3s ease;
}

.username-display {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Comfortaa', sans-serif;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 50;
    min-width: 120px;
    text-align: center;
}

#gameCanvas {
    border: none;
    border-radius: 0;
    background: linear-gradient(to bottom, #87CEEB, #98FB98);
    box-shadow: none;
    margin: 0;
    width: 100vw;
    height: 100vh;
    display: block;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
}

.canvas-container {
    position: absolute;
    top: 0;
    left: 0;
    margin: 0;
    width: 100vw;
    height: 100vh;
    display: block;
}

.game-start-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.6));
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 15px;
    z-index: 100;
    animation: fadeIn 0.5s ease-out;
}

.start-content {
    text-align: center;
    color: white;
    padding: 60px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    transform: translateY(0);
    transition: all 0.3s ease;
    animation: slideUp 0.6s ease-out;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 25px;
    min-height: 400px; /* Sabit minimum yükseklik */
    justify-content: center; /* İçeriği ortala */
    min-width: 400px; /* Sabit minimum genişlik */
}

.start-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 35px 70px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.3);
}

.start-content h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
    background: linear-gradient(45deg, #f5945c, #65e380);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease-in-out infinite;
    font-weight: 800;
    letter-spacing: 2px;
}

.start-content p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    color: #f0f0f0;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

.username-input-container {
    width: 100%;
    display: flex;
    justify-content: center;
    position: relative;
    min-height: 80px; /* Sabit minimum yükseklik */
    align-items: center; /* İçeriği ortala */
}

.username-input-container input {
    width: 100%;
    max-width: 300px;
    padding: 15px 20px;
    font-size: 1.1rem;
    border: 2px solid rgba(245, 148, 92, 0.4);
    border-radius: 25px;
    background: linear-gradient(135deg, rgba(245, 148, 92, 0.1), rgba(101, 227, 128, 0.1));
    color: white;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.username-input-container input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.username-input-container input:focus {
    outline: none;
    border-color: rgba(185, 124, 255, 0.8);
    box-shadow: 0 0 20px rgba(185, 124, 255, 0.3);
    background: rgba(255, 255, 255, 0.15);
}

.username-input-container input:hover {
    border-color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.12);
}

.username-error {
    color: #ff6b6b;
    font-size: 0.9rem;
    margin-bottom: 8px;
    text-align: center;
    background: rgba(255, 107, 107, 0.1);
    padding: 8px 16px;
    border-radius: 15px;
    border: 1px solid rgba(255, 107, 107, 0.3);
    animation: fadeIn 0.3s ease-out;
    position: absolute;
    top: -50px;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    z-index: 10;
}



.shake {
    animation: shake 0.5s ease-in-out;
}

.game-pause-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.6));
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 15px;
    z-index: 200;
    animation: fadeIn 0.4s ease-out;
}

.pause-content {
    text-align: center;
    color: white;
    padding: 60px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    transform: translateY(0);
    transition: all 0.3s ease;
    animation: slideUp 0.6s ease-out;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 25px;
    min-height: 400px; /* Sabit minimum yükseklik */
    justify-content: center; /* İçeriği ortala */
    min-width: 400px; /* Sabit minimum genişlik */
}

.pause-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 35px 70px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.3);
}

.pause-content h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
    background: linear-gradient(45deg, #f5945c, #65e380);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease-in-out infinite;
    font-weight: 800;
    letter-spacing: 2px;
}

.pause-content button {
    margin: 0;
    width: 100%;
    max-width: 300px;
    align-self: center;
    min-height: 60px; /* Sabit minimum yükseklik */
}

.game-controls {
    margin: 0;
    position: absolute;
    bottom: 1px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
}

.game-controls p {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: #f0f0f0;
    font-family: 'Comfortaa', sans-serif;
}

button {
    background: linear-gradient(135deg, #f5945c, #65e380);
    background-size: 200% 200%;
    border: none;
    color: white;
    padding: 15px 32px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 30px;
    cursor: pointer;
    margin: 0;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
    letter-spacing: 1px;
    border: 2px solid transparent;
    background-clip: padding-box;
    width: 100%;
    max-width: 300px;
    min-height: 60px; /* Sabit minimum yükseklik */
}

button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    transition: left 0.6s ease-out;
}

button:hover::before {
    left: 100%;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    background-position: right center;
    border-color: rgba(255, 255, 255, 0.3);
}

button:active {
    transform: translateY(0);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.1s ease;
}

.game-over {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.1);
    padding: 60px;
    border-radius: 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    text-align: center;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 25px;
    min-width: 400px;
    min-height: 400px; /* Sabit minimum yükseklik */
    justify-content: center; /* İçeriği ortala */
}

.game-over h2 {
    color: #ff6b6b;
    margin-bottom: 30px;
    font-size: 2.5rem;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
    background: linear-gradient(45deg, #ff6b6b, #ff8e8e);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease-in-out infinite;
    font-weight: 800;
    letter-spacing: 2px;
}

.game-over p {
    margin-bottom: 30px;
    font-size: 1.3rem;
    color: #f0f0f0;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

#finalScore {
    color: #4ecdc4;
    font-weight: bold;
    font-size: 1.3rem;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

@media (max-width: 900px) {
    .game-container {
        padding: 0;
        margin: 0;
    }
    
    #gameCanvas {
        width: 100vw;
        height: 100vh;
    }
    
    .game-header h1 {
        font-size: 2.8rem;
        padding: 15px 0;
        font-family: 'Black Ops One', cursive;
        text-shadow: none;
        background: linear-gradient(45deg, #C0C0C0, #2F2F2F, #C0C0C0);
        background-size: 200% 200%;
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        font-weight: 400;
        letter-spacing: 2px;
        filter: none;
        animation: gradientShift 3s ease-in-out infinite;
        text-transform: uppercase;
        -webkit-text-stroke: none;
    }
    
    .game-controls {
        bottom: 15px;
    }
}

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



@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-5px);
    }
    75% {
        transform: translateX(5px);
    }
}

/* Leaderboard Styles */
.leaderboard-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.6));
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 15px;
    z-index: 150;
    animation: fadeIn 0.4s ease-out;
}

.leaderboard-content {
    text-align: center;
    color: white;
    padding: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(15px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
    transform: translateY(0);
    transition: all 0.3s ease;
    animation: slideUp 0.5s ease-out;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 25px;
    min-width: 500px;
    max-width: 95%;
    max-height: calc(100vh - 20px);
    overflow: hidden;
    position: relative;
}

.leaderboard-content:hover {
    transform: translateY(-3px);
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.3);
}

.leaderboard-content h2 {
    font-size: 2.2rem;
    margin-bottom: 7.5px;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);
    background: linear-gradient(45deg, #f5945c, #65e380);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease-in-out infinite;
    font-weight: 800;
    letter-spacing: 2px;
}

/* Leaderboard Type Buttons */
.leaderboard-type-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
    justify-content: center;
}

.lb-type-btn {
    padding: 12px 24px;
    font-size: 1.1rem;
    font-weight: 600;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.lb-type-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.lb-type-btn.active {
    background: linear-gradient(135deg, #f5945c, #65e380);
    color: white;
    border-color: rgba(255, 255, 255, 0.8);
    box-shadow: 0 6px 20px rgba(245, 148, 92, 0.4);
    transform: translateY(-2px);
}

/* Weekly Leaderboard Section */
.weekly-leaderboard-section {
    width: 100%;
    margin-bottom: 20px;
}

.weekly-leaderboard-section h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: #4ecdc4;
    font-weight: 600;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.weekly-leaderboard-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    padding: 20px;
}

.weekly-leaderboard-list {
    width: 100%;
    max-height: 550px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 12px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 15px;
    border: 1px solid rgba(78, 205, 196, 0.2);
}

/* Leaderboard Divider */
.leaderboard-divider {
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    margin: 15px 0;
}

/* Global Leaderboard Section */
.global-leaderboard-section {
    width: 100%;
}

.global-leaderboard-section h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: #f5945c;
    font-weight: 600;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.leaderboard-list {
    width: 100%;
    max-height: 550px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 15px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.leaderboard-entry {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: linear-gradient(135deg, rgba(245, 148, 92, 0.1), rgba(101, 227, 128, 0.1));
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    font-family: 'Comfortaa', sans-serif;
}

.leaderboard-entry:hover {
    transform: translateX(5px);
    background: linear-gradient(135deg, rgba(245, 148, 92, 0.2), rgba(101, 227, 128, 0.2));
    border-color: rgba(255, 255, 255, 0.3);
}

.leaderboard-entry.rank-1 {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.2), rgba(255, 193, 7, 0.2));
    border-color: rgba(255, 215, 0, 0.5);
}

.leaderboard-entry.rank-2 {
    background: linear-gradient(135deg, rgba(192, 192, 192, 0.2), rgba(169, 169, 169, 0.2));
    border-color: rgba(192, 192, 192, 0.5);
}

.leaderboard-entry.rank-3 {
    background: linear-gradient(135deg, rgba(205, 127, 50, 0.2), rgba(184, 115, 51, 0.2));
    border-color: rgba(205, 127, 50, 0.5);
}

.leaderboard-rank {
    font-size: 1.1rem;
    font-weight: bold;
    color: #f5945c;
    min-width: 35px;
    text-align: center;
}

/* Medal styles for top 3 */
.leaderboard-entry.rank-1 .leaderboard-rank {
    color: #FFD700; /* Gold */
    font-size: 1.3rem;
}

.leaderboard-entry.rank-2 .leaderboard-rank {
    color: #C0C0C0; /* Silver */
    font-size: 1.2rem;
}

.leaderboard-entry.rank-3 .leaderboard-rank {
    color: #CD7F32; /* Bronze */
    font-size: 1.1rem;
}

.leaderboard-username {
    font-size: 0.95rem;
    font-weight: 600;
    color: white;
    flex-grow: 1;
    text-align: left;
    margin-left: 12px;
    min-width: 120px;
}

.leaderboard-score {
    font-size: 1rem;
    font-weight: bold;
    color: #65e380;
    min-width: 65px;
}





.leaderboard-content button {
    margin: 0;
    width: 100%;
    max-width: 180px;
    align-self: center;
    padding: 12px 24px;
    font-size: 1rem;
}

/* Loading Spinner */
.leaderboard-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    padding: 30px;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-left: 3px solid #f5945c;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.leaderboard-loading p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1rem;
    font-family: 'Comfortaa', sans-serif;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* How to Play button styles */
.how-to-play-btn {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: linear-gradient(135deg, #4ecdc4, #44a08d);
    border: 2px solid rgba(78, 205, 196, 0.3);
    border-radius: 25px;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    z-index: 100;
    font-family: 'Comfortaa', sans-serif;
    min-height: auto;
    width: auto;
    max-width: none;
}

.how-to-play-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    border-color: rgba(78, 205, 196, 0.6);
    background: linear-gradient(135deg, #5dd5cc, #4ecdc4);
}

.how-to-play-btn:active {
    transform: translateY(0);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* How to Play overlay styles */
.how-to-play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.6));
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 15px;
    z-index: 150;
    animation: fadeIn 0.4s ease-out;
}

.how-to-play-content {
    text-align: center;
    color: white;
    padding: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(15px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
    transform: translateY(0);
    transition: all 0.3s ease;
    animation: slideUp 0.5s ease-out;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 25px;
    min-width: 600px;
    max-width: 90%;
    max-height: calc(100vh - 60px);
    overflow-y: auto;
    position: relative;
    /* Hide scrollbar but keep functionality */
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* Internet Explorer 10+ */
}

/* Hide scrollbar for WebKit browsers (Chrome, Safari, Edge) */
.how-to-play-content::-webkit-scrollbar {
    display: none;
}

.how-to-play-content:hover {
    transform: translateY(-3px);
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.3);
}

.how-to-play-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);
    background: linear-gradient(45deg, #4ecdc4, #44a08d);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease-in-out infinite;
    font-weight: 800;
    letter-spacing: 2px;
}

.game-instructions {
    display: flex;
    flex-direction: column;
    gap: 25px;
    width: 100%;
    text-align: left;
}

.instruction-section {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 20px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.instruction-section:hover {
    background: rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateX(5px);
}

.instruction-section h3 {
    color: #4ecdc4;
    font-size: 1.3rem;
    margin-bottom: 15px;
    font-weight: 700;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

.instruction-section p {
    color: #f0f0f0;
    font-size: 1rem;
    margin-bottom: 8px;
    line-height: 1.5;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

.instruction-section p:last-child {
    margin-bottom: 0;
}

.instruction-section strong {
    color: #f5945c;
    font-weight: 700;
}

/* Market button styles */
.market-btn {
    background: linear-gradient(135deg, #6c757d, #495057) !important;
    color: rgba(255, 255, 255, 0.6) !important;
    cursor: not-allowed !important;
    position: relative;
    overflow: visible !important;
}

.market-btn:hover {
    transform: none !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2) !important;
    background-position: center !important;
    border-color: transparent !important;
}

.market-btn::before {
    display: none !important;
}

.market-btn::after {
    display: none !important;
}

/* Coming Soon popup */
.market-btn .coming-soon-popup {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 8px 16px;
    border-radius: 10px;
    font-size: 0.9rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    margin-bottom: 10px;
    z-index: 1000;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.market-btn .coming-soon-popup::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: rgba(0, 0, 0, 0.9);
}

.market-btn:hover .coming-soon-popup {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-5px);
}

/* Modern button animations */
.pause-content button,
.start-content button {
    position: relative;
    overflow: hidden;
}

.start-content button,
.game-over button {
    width: 100%;
    max-width: 300px;
    align-self: center;
    min-height: 60px; /* Sabit minimum yükseklik */
}

.game-over button:not(:first-child) {
    margin-top: 25px;
}

.pause-content button::after,
.start-content button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    transition: all 0.4s ease-out;
    transform: translate(-50%, -50%);
    border-radius: 50%;
}

.pause-content button:hover::after,
.start-content button:hover::after {
    width: 300px;
    height: 300px;
}

/* Close button for leaderboard */
.close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: transparent !important;
    border: none !important;
    color: rgba(255, 255, 255, 0.8);
    font-size: 56px;
    font-weight: 300;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    padding: 0 !important;
    width: auto !important;
    height: auto !important;
    box-shadow: none !important;
    outline: none !important;
    text-decoration: none !important;
    border-radius: 0 !important;
    backdrop-filter: none !important;
}

.close-btn:hover {
    color: white;
    transform: scale(1.1);
    background: transparent !important;
    box-shadow: none !important;
}

.close-btn:active {
    transform: scale(0.95);
    background: transparent !important;
}

.close-btn:focus {
    background: transparent !important;
    box-shadow: none !important;
    outline: none !important;
}

/* Sound Control Button Styles */
.sound-control {
    position: absolute;
    bottom: 20px;
    right: 20px;
    z-index: 100;
}

#soundToggleBtn {
    background: rgba(0, 0, 0, 0.7);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    outline: none;
    font-size: 20px;
    color: white;
}

#soundToggleBtn:hover {
    background: rgba(0, 0, 0, 0.8);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

#soundToggleBtn:active {
    transform: scale(0.95);
}

#soundToggleBtn.muted {
    background: rgba(255, 0, 0, 0.3);
    border-color: rgba(255, 0, 0, 0.5);
}

#soundToggleBtn.muted:hover {
    background: rgba(255, 0, 0, 0.4);
    border-color: rgba(255, 0, 0, 0.6);
}

/* Sound icon animations */
#soundIcon {
    transition: all 0.3s ease;
}

#soundToggleBtn.muted #soundIcon {
    opacity: 0.6;
    transform: scale(0.9);
}

/* Auto-pause message styling */
.auto-pause-message {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 107, 107, 0.9);
    color: white;
    padding: 12px 24px;
    border-radius: 20px;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Comfortaa', sans-serif;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    z-index: 250;
    animation: slideDown 0.5s ease-out;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

@keyframes slideDown {
    0% {
        opacity: 0;
        transform: translateX(-50%) translateY(-20px);
    }
    100% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}