/* All styles scoped within #tennis-game */

#tennis-game {
    position: relative;
    width: 100%;
    max-width: 800px;
    aspect-ratio: 1 / 1;
    margin: 0 auto;
    background: #1a1a2e;
    overflow: hidden;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

#tennis-game * {
    box-sizing: border-box;
}

#tennis-game #gameCanvas {
    display: block;
    width: 100%;
    height: 100%;
    touch-action: none;
}

/* UI Overlay */
#tennis-game .game-ui {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
}

#tennis-game .game-ui > * {
    pointer-events: auto;
}

/* Score Container */
#tennis-game .score-container {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 30px;
    pointer-events: none;
}

#tennis-game .score-box {
    background: rgba(0, 0, 0, 0.7);
    padding: 10px 20px;
    border-radius: 8px;
    text-align: center;
    backdrop-filter: blur(10px);
}

#tennis-game .score-label {
    color: #aaa;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
}

#tennis-game .score-value {
    color: #fff;
    font-size: 32px;
    font-weight: bold;
    line-height: 1;
    margin-top: 5px;
}

/* Game Message */
#tennis-game #game-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.9);
    color: #fff;
    padding: 20px 40px;
    border-radius: 12px;
    font-size: 24px;
    font-weight: bold;
    text-align: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(10px);
}

#tennis-game #game-message.show {
    opacity: 1;
}

/* Control Buttons */
#tennis-game .control-buttons {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
}

#tennis-game .control-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
    font-size: 20px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
}

#tennis-game .control-btn:hover {
    background: rgba(0, 0, 0, 0.9);
    transform: scale(1.05);
}

#tennis-game .control-btn:active {
    transform: scale(0.95);
}

/* Touch Hint */
#tennis-game .hint {
    position: absolute;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 11px;
    text-align: center;
    backdrop-filter: blur(5px);
    pointer-events: none;
    z-index: 20;
    max-width: 80%;
    opacity: 0.8;
}

#tennis-game .hint div {
    margin: 3px 0;
    line-height: 1.3;
}

/* Touch indicator (visual feedback) */
#tennis-game .touch-indicator {
    position: absolute;
    width: 60px;
    height: 60px;
    border: 3px solid rgba(255, 255, 255, 0.6);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    display: none;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.2), transparent);
}

#tennis-game .touch-indicator.active {
    display: block;
    animation: touchPulse 0.6s ease-out;
}

@keyframes touchPulse {
    0% {
        transform: translate(-50%, -50%) scale(0.5);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scoreUpdate {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.3);
        color: #4CAF50;
        text-shadow: 0 0 20px rgba(76, 175, 80, 0.8);
    }
    100% {
        transform: scale(1);
    }
}

/* Modal */
#tennis-game .modal {
    position: absolute;
    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: 100;
    backdrop-filter: blur(5px);
}

#tennis-game .modal.hidden {
    display: none;
}

#tennis-game .modal-content {
    background: #2a2a3e;
    color: #fff;
    padding: 30px;
    border-radius: 16px;
    max-width: 400px;
    width: 90%;
    max-height: 90%;
    overflow-y: auto;
}

#tennis-game .modal-content h2 {
    margin: 0 0 20px 0;
    font-size: 24px;
    text-align: center;
}

#tennis-game .setting-item {
    margin-bottom: 20px;
}

#tennis-game .setting-item label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
}

#tennis-game .setting-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: 10px;
    cursor: pointer;
}

#tennis-game .setting-item select {
    width: 100%;
    padding: 10px;
    margin-top: 8px;
    background: #1a1a2e;
    color: #fff;
    border: 1px solid #444;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
}

#tennis-game .setting-description {
    font-size: 12px;
    color: #aaa;
    margin-top: 5px;
    margin-left: 30px;
}

#tennis-game .modal-buttons {
    display: flex;
    gap: 10px;
    margin-top: 30px;
}

#tennis-game .btn {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

#tennis-game .btn-primary {
    background: #4CAF50;
    color: #fff;
}

#tennis-game .btn-primary:hover {
    background: #45a049;
    transform: translateY(-2px);
}

#tennis-game .btn-secondary {
    background: #555;
    color: #fff;
}

#tennis-game .btn-secondary:hover {
    background: #666;
    transform: translateY(-2px);
}

#tennis-game .btn:active {
    transform: translateY(0);
}

/* Start Screen */
#tennis-game #start-screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 50;
}

#tennis-game #start-screen.hidden {
    display: none;
}

#tennis-game .start-content {
    text-align: center;
    color: #fff;
    padding: 20px;
}

#tennis-game .start-content h1 {
    font-size: 48px;
    margin: 0 0 10px 0;
}

#tennis-game .start-content .subtitle {
    font-size: 18px;
    color: #aaa;
    margin: 0 0 30px 0;
}

#tennis-game .btn-large {
    padding: 16px 48px;
    font-size: 20px;
    background: #4CAF50;
    color: #fff;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 600;
}

#tennis-game .btn-large:hover {
    background: #45a049;
    transform: scale(1.05);
}

#tennis-game .btn-large:active {
    transform: scale(0.95);
}

#tennis-game .controls-info {
    margin-top: 30px;
    font-size: 14px;
    color: #aaa;
    line-height: 1.6;
}

#tennis-game .controls-info div {
    margin: 5px 0;
}

/* Responsive adjustments for smaller screens */
@media (max-width: 600px) {
    #tennis-game .score-container {
        gap: 15px;
    }

    #tennis-game .score-box {
        padding: 8px 15px;
    }

    #tennis-game .score-value {
        font-size: 24px;
    }

    #tennis-game .control-buttons {
        top: 10px;
        right: 10px;
    }

    #tennis-game .control-btn {
        width: 36px;
        height: 36px;
        font-size: 18px;
    }

    #tennis-game #game-message {
        font-size: 18px;
        padding: 15px 30px;
    }

    #tennis-game .start-content h1 {
        font-size: 36px;
    }

    #tennis-game .modal-content {
        padding: 20px;
    }
}