* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Arial', sans-serif;
    background: black url(/image/bg.png) no-repeat center/cover fixed;
    min-height: 100vh;
    width: 100vw;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    color: white;
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
}

.game-container {
    width: 100%;
    max-width: 700px;
    height: 100vh;
    max-height: 900px;
    background: rgba(28, 26, 26, 0.53);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: clamp(8px, 2.5vw, 16px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(46, 176, 59, 0.2);
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
}

.game-header {
    text-align: center;
    margin-bottom: clamp(8px, 2vh, 12px);
    color: #7cc57f;
    display: flex;
    flex-direction: column;
}

.game-title {
    font-size: clamp(1.5rem, 4.5vw, 2.2rem);
    font-weight: bold;
    margin-bottom: clamp(6px, 1.5vh, 8px);
    text-shadow: 0 0 10px rgba(76, 175, 80, 0.7), 2px 2px 4px rgba(0, 0, 0, 0.7);
}

.score-board {
    display: flex;
    justify-content: space-around;
    margin-bottom: clamp(10px, 2.5vh, 12px);
    font-size: clamp(0.8rem, 2.5vw, 1rem);
    flex-wrap: wrap;
    gap: clamp(5px, 1.5vw, 8px);
}

.score-item {
    background: rgba(0, 0, 0, 0.3);
    padding: clamp(5px, 1.5vw, 8px) clamp(8px, 2vw, 12px);
    border-radius: 8px;
    text-align: center;
    min-width: clamp(60px, 15vw, 75px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.game-canvas-container {
    position: relative;
    border: 1px solid rgba(42, 231, 102, 0.547);
    width: 100%;
    flex-grow: 1;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    overflow: hidden;
    touch-action: none;
    min-height: 280px;
    max-height: 70vh;
}

canvas {
    width: 100%;
    height: 100%;
    display: block;
    max-height: 100%;
}

.controls {
    margin-top: clamp(10px, 2.5vh, 12px);
    text-align: center;
}

.start-btn {
    background: linear-gradient(45deg, #4CAF50, #8BC34A);
    border: none;
    padding: clamp(8px, 2.5vw, 10px) clamp(15px, 5vw, 25px);
    font-size: clamp(0.9rem, 3vw, 1.1rem);
    font-weight: bold;
    color: white;
    border-radius: 25px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
    min-width: clamp(120px, 30vw, 140px);
    user-select: none;
    animation: pulse 2s ease-in-out infinite;
}

.start-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
}

.start-btn:active {
    transform: translateY(0);
}

.instructions {
    margin-top: clamp(8px, 2vh, 10px);
    font-size: clamp(0.7rem, 2.2vw, 0.85rem);
    opacity: 0.8;
    line-height: 1.4;
    padding: 0 clamp(10px, 3vw, 15px);
}

.game-over, .pause-popup {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: clamp(15px, 4vw, 20px);
    border-radius: 12px;
    text-align: center;
    z-index: 10;
    animation: fadeIn 0.5s ease-out forwards;
}

.game-over h2, .pause-popup h2 {
    margin-bottom: clamp(10px, 3vh, 15px);
    color: #FFEB3B;
    font-size: clamp(1.5rem, 4.5vw, 2rem);
    text-shadow: 2px 2px 4px rgba(255, 0, 0, 0.8);
}

.game-over p, .pause-popup p {
    font-size: clamp(0.9rem, 2.8vw, 1.1rem);
    margin-bottom: clamp(8px, 2vh, 10px);
}

.pause-popup button, .game-over button {
    margin: clamp(5px, 1.5vw, 8px);
}

.mobile-controls {
    display: flex;
    margin-top: clamp(10px, 2.5vh, 15px);
    justify-content: space-around;
    width: 100%;
    max-width: clamp(200px, 60vw, 280px);
    align-self: center;
    padding: 0 clamp(5px, 2vw, 10px);
}

.control-btn {
    width: clamp(50px, 15vw, 70px);
    height: clamp(50px, 15vw, 70px);
    background: rgba(76, 175, 80, 0.5);
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(1.2rem, 4.5vw, 1.8rem);
    cursor: pointer;
    user-select: none;
    touch-action: manipulation;
    transition: background 0.1s, transform 0.1s;
}

.control-btn:hover {
    animation: controlGlow 1.5s ease-in-out infinite;
}

.control-btn:active {
    background: rgba(76, 175, 80, 0.8);
    transform: scale(0.95);
}

.float-buttons {
    position: absolute;
    top: clamp(8px, 2vw, 10px);
    right: clamp(8px, 2vw, 10px);
    display: flex;
    gap: clamp(8px, 2vw, 10px);
}

.float-btn {
    width: clamp(35px, 10vw, 40px);
    height: clamp(35px, 10vw, 40px);
    background: rgba(0, 0, 0, 0.4);
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(1.1rem, 3.5vw, 1.3rem);
    cursor: pointer;
    transition: background 0.2s;
    z-index: 10;
    user-select: none;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
}

.float-btn:active {
    background: rgba(0, 0, 0, 0.7);
}

.hidden {
    display: none !important;
}

.creator-credit {
    position: fixed;
    top: 20px;
    left: 10px;
    background: rgba(9, 177, 223, 0.219);
    border: 2px solid #26dc2f;
    border-radius: 12px;
    padding: 8px 16px;
    color: #ffffff;
    font-family: 'Arial', sans-serif;
    font-size: 12px;
    font-weight: 600;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.428);
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.3),
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    z-index: 9999;
    transition: all 0.3s ease;
    cursor: pointer;
}

.creator-credit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(220, 38, 38, 0.4),
                inset 0 1px 0 rgba(255, 255, 255, 0.2);
    border-color: #dab212;
}

.creator-credit::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #dc2626, #ef4444, #f87171, #dc2626);
    border-radius: 14px;
    z-index: -1;
    animation: borderGlow 3s ease-in-out infinite;
}

@keyframes borderGlow {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

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

@keyframes controlGlow {
    0% { box-shadow: 0 0 5px rgba(76, 175, 80, 0.5); }
    50% { box-shadow: 0 0 15px rgba(76, 175, 80, 0.8); }
    100% { box-shadow: 0 0 5px rgba(76, 175, 80, 0.5); }
}

@keyframes fadeIn {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}

@media (max-width: 480px) {
    .game-container {
        padding: clamp(6px, 2vw, 10px);
        border-radius: 12px;
    }
    .game-title {
        font-size: clamp(1.2rem, 4vw, 1.8rem);
    }
    .score-board {
        gap: clamp(4px, 1.2vw, 6px);
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
    .score-item {
        padding: clamp(4px, 1.2vw, 6px) clamp(6px, 1.8vw, 10px);
        min-width: clamp(50px, 14vw, 65px);
        font-size: clamp(0.7rem, 2.2vw, 0.9rem);
    }
    .game-canvas-container {
        min-height: 240px;
        max-height: 65vh;
    }
    .start-btn {
        padding: clamp(6px, 2vw, 8px) clamp(12px, 4vw, 20px);
        font-size: clamp(0.8rem, 2.8vw, 1rem);
        min-width: clamp(100px, 28vw, 120px);
    }
    .instructions {
        font-size: clamp(0.65rem, 2vw, 0.8rem);
        padding: 0 clamp(8px, 2.5vw, 12px);
    }
    .mobile-controls {
        max-width: clamp(180px, 55vw, 240px);
    }
    .control-btn {
        width: clamp(45px, 14vw, 60px);
        height: clamp(45px, 14vw, 60px);
        font-size: clamp(1rem, 4vw, 1.5rem);
    }
    .float-btn {
        width: clamp(30px, 9vw, 35px);
        height: clamp(30px, 9vw, 35px);
        font-size: clamp(1rem, 3vw, 1.2rem);
    }
    .game-header h1 {
        font-size: 1.2rem;
        margin-right: 15px;
    }
    .creator-credit {
        top: auto;
        bottom: 10px;
        left: 12%;
        transform: translateX(-50%);
        font-size: 5px;
        padding: 6px 12px;
    }
}

@media (orientation: landscape) and (max-height: 500px) {
    body {
        align-items: stretch;
        justify-content: flex-start;
    }
    .game-container {
        flex-direction: row;
        height: 100vh;
        max-height: 100vh;
        max-width: none;
        width: 100vw;
        padding: clamp(4px, 1vw, 8px);
        border-radius: 0;
    }
    .game-header {
        margin-bottom: 0;
        margin-right: clamp(8px, 2vw, 12px);
    }
    .game-title {
        font-size: clamp(1rem, 3vw, 1.5rem);
        writing-mode: vertical-rl;
        transform: rotate(180deg);
    }
    .score-board {
        flex-direction: column;
        margin-bottom: 0;
        margin-right: clamp(8px, 2vw, 12px);
        gap: clamp(4px, 1vw, 6px);
    }
    .score-item {
        min-width: auto;
        padding: clamp(4px, 1vw, 6px) clamp(6px, 1.5vw, 8px);
        font-size: clamp(0.6rem, 1.8vw, 0.8rem);
    }
    .game-canvas-container {
        flex-grow: 1;
        max-height: none;
        height: 100%;
        min-height: 0;
    }
    .controls {
        margin-top: 0;
        margin-left: clamp(8px, 2vw, 12px);
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    .start-btn {
        padding: clamp(4px, 1vw, 6px) clamp(8px, 2vw, 12px);
        font-size: clamp(0.7rem, 1.8vw, 0.9rem);
        min-width: auto;
    }
    .instructions {
        font-size: clamp(0.5rem, 1.5vw, 0.7rem);
        padding: clamp(4px, 1vw, 6px);
    }
    .mobile-controls {
        flex-direction: column;
        max-width: none;
        width: auto;
        padding: clamp(4px, 1vw, 6px);
        gap: clamp(8px, 2vh, 12px);
    }
    .control-btn {
        width: clamp(40px, 10vw, 50px);
        height: clamp(40px, 10vw, 50px);
        font-size: clamp(0.8rem, 3vw, 1.2rem);
    }
    .float-buttons {
        top: auto;
        right: auto;
        bottom: clamp(8px, 2vw, 10px);
        left: clamp(8px, 2vw, 10px);
        flex-direction: column;
    }
    .float-btn {
        width: clamp(28px, 8vw, 32px);
        height: clamp(28px, 8vw, 32px);
        font-size: clamp(0.8rem, 2.5vw, 1rem);
    }
}

@media (min-width: 768px) {
    .game-container {
        max-width: 750px;
        padding: clamp(12px, 2vw, 18px);
    }
    .game-canvas-container {
        max-height: 75vh;
    }
    .game-title {
        font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    }
    .score-item {
        min-width: clamp(70px, 12vw, 80px);
        font-size: clamp(0.9rem, 1.8vw, 1.1rem);
    }
    .start-btn {
        min-width: clamp(130px, 25vw, 150px);
        font-size: clamp(1rem, 2vw, 1.2rem);
    }
    .control-btn {
        width: clamp(60px, 10vw, 80px);
        height: clamp(60px, 10vw, 80px);
        font-size: clamp(1.4rem, 3vw, 1.8rem);
    }
    .float-btn {
        width: clamp(40px, 8vw, 45px);
        height: clamp(40px, 8vw, 45px);
        font-size: clamp(1.2rem, 2.5vw, 1.4rem);
    }
}