*{box-sizing:border-box;margin:0;padding:0}body{background-color:#f7e7ce;font-family:Arial,sans-serif;overflow:hidden}#game-container{background-color:#000;border-radius:10px;height:100vh;margin:0 auto;max-height:700px;max-width:800px;overflow:hidden;position:relative;width:100vw}@media (max-width:800px){#game-container{border-radius:0;margin:0 auto}}#start-screen{align-items:center;background-color:rgba(255,204,213,.9);display:flex;flex-direction:column;height:100%;justify-content:flex-start;left:0;padding-top:60px;position:absolute;top:0;width:100%;z-index:100}#start-screen h1{color:#fff;font-size:48px;margin-bottom:20px;text-shadow:0 0 10px #ff4d6d,0 0 20px #ff4d6d}.valentine-badge{animation:pulse 2s infinite;background-color:#ff4d6d;border-radius:20px;color:#fff;display:inline-block;font-size:16px;margin-left:10px;padding:5px 10px}.valentine-decoration{display:flex;justify-content:space-around;left:0;position:absolute;top:20px;width:100%;z-index:10}.heart{animation:float 3s ease-in-out infinite;position:relative;transform:rotate(-45deg)}.heart,.heart:after,.heart:before{background-color:#ff4d6d;height:30px;width:30px}.heart:after,.heart:before{border-radius:50%;content:"";position:absolute}.heart:before{left:0;top:-15px}.heart:after{left:15px;top:0}@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.1)}to{transform:scale(1)}}@keyframes float{0%{transform:rotate(-45deg) translateY(0)}50%{transform:rotate(-45deg) translateY(-10px)}to{transform:rotate(-45deg) translateY(0)}}.valentine-decoration .heart:first-child{animation-delay:0s}.valentine-decoration .heart:nth-child(2){animation-delay:1s}.valentine-decoration .heart:nth-child(3){animation-delay:2s}#game-intro{color:#fff;margin-bottom:30px;max-width:600px;padding:0 20px;text-align:center}#game-intro p{font-size:18px;line-height:1.5;margin-bottom:15px}#game-intro h3{color:#ff6b6b;font-size:24px;margin:20px 0 10px}#game-intro ul{list-style-position:inside;margin:0 auto 15px;max-width:400px;text-align:left}#game-intro li{font-size:16px;margin-bottom:5px}#plane-selection{margin-bottom:30px}#plane-selection,.plane-option{display:flex;justify-content:center}.plane-option{align-items:center;border:2px solid #333;border-radius:10px;cursor:pointer;height:80px;margin:0 10px;transition:all .3s ease;width:80px}.plane-option:hover{border-color:#00f;transform:scale(1.1)}.plane-option.selected{background-color:rgba(0,128,255,.2);border-color:#00f}.plane1{background-color:#00f;border-radius:50%}.plane-option[data-plane="2"],.plane-option[data-plane="3"]{display:none}.button{background-color:#000;border:2px solid #333;border-radius:10px;box-shadow:none;color:#fff;cursor:pointer;font-size:16px;font-weight:700;height:50px;margin:10px;overflow:visible;text-indent:0;text-shadow:none;transition:all .3s ease;width:200px}.button:hover{border-color:#f7e7ce;box-shadow:0 0 10px #ff4d6d,0 0 20px #ff4d6d;text-shadow:0 0 10px #ff4d6d,0 0 20px #ff4d6d;transform:scale(1.05)}.button:active{box-shadow:0 0 15px #ff4d6d,0 0 30px #ff4d6d;text-shadow:0 0 15px #ff4d6d,0 0 30px #ff4d6d;transform:scale(.95)}@keyframes blink{0%,to{opacity:1}50%{opacity:.3}}#attack-mode-button.auto,#attack-mode-button.manual,#start-button{background-image:none}#game-screen{display:none;height:100%;position:relative;width:100%}#score{color:#fff;font-size:24px;font-weight:700;left:20px;position:absolute;text-shadow:0 0 5px #ff4d6d;top:20px;z-index:1001}#attack-mode-indicator{background-color:rgba(255,77,109,.7);font-size:18px;top:20px}#attack-mode-indicator,#reward-indicator{border-radius:5px;color:#fff;padding:5px 10px;position:absolute;right:20px;z-index:1001}#reward-indicator{animation:pulse 1s infinite;background-color:rgba(0,255,0,.7);display:none;font-size:16px;top:60px}#health-bar{align-items:center;display:flex;gap:5px;left:20px;position:absolute;top:60px;z-index:1001}#game-info{color:#fff;font-size:14px;text-align:right}#author a{color:#0af;text-decoration:none}#author a:hover{text-decoration:underline}#back-to-menu-in-game{background-color:rgba(0,0,0,.3);border:1px solid hsla(0,0%,100%,.2);border-radius:5px;bottom:20px;color:hsla(0,0%,100%,.5);cursor:pointer;left:20px;padding:5px 10px;position:absolute;transition:all .3s ease;z-index:10}#back-to-menu-in-game:hover{background-color:rgba(0,0,0,.5);border-color:hsla(0,0%,100%,.5);color:hsla(0,0%,100%,.8)}.health-cell{background-color:#fff;border:2px solid #ccc;border-radius:3px;height:15px;width:30px}.health-cell.empty{background-color:#ccc;border-color:#999}.health-cell.shield{background-color:#ff4d6d;border-color:#ffb3c1}#cheat-button{background-image:none}#cheat-screen,#instructions-screen{align-items:center;background-color:rgba(0,0,0,.95);display:none;flex-direction:column;height:100%;justify-content:center;left:0;position:absolute;top:0;width:100%;z-index:200}#instructions-screen h2{color:#fff;font-size:36px;margin-bottom:30px}#instructions-content{color:#fff;margin-bottom:30px;max-width:600px;padding:0 20px;text-align:center}#instructions-content p{font-size:18px;line-height:1.5;margin-bottom:15px}#instructions-content h3{color:#ff6b6b;font-size:24px;margin:20px 0 10px}#instructions-content ul{list-style-position:inside;margin:0 auto 15px;max-width:400px;text-align:left}#instructions-content li{font-size:16px;margin-bottom:5px}#level-select-screen{align-items:center;background-color:rgba(0,0,0,.95);display:none;flex-direction:column;height:100%;justify-content:center;left:0;position:absolute;top:0;width:100%;z-index:200}#level-select-screen h2{color:#fff;font-size:36px;margin-bottom:30px}#level-options{align-items:center;display:flex;flex-direction:column;gap:20px;margin-bottom:30px}.level-option{background-color:#333;border:2px solid #555;border-radius:10px;cursor:pointer;padding:20px;text-align:center;transition:all .3s ease;width:200px}.level-option:hover{border-color:#0af;transform:scale(1.05)}.level-option h3{color:#fff;font-size:24px;margin-bottom:10px}.level-option p{color:#ccc;font-size:16px}#level-clear-screen{align-items:center;background-color:rgba(0,0,0,.95);display:none;flex-direction:column;height:100%;justify-content:center;left:0;position:absolute;top:0;width:100%;z-index:200}#level-clear-screen h2{color:#4caf50;font-size:48px;margin-bottom:30px}#level-clear-content{background-color:#333;border:2px solid #4caf50;border-radius:10px;margin-bottom:30px;padding:30px;text-align:center;width:400px}#level-clear-score{color:#fff;font-size:24px;margin-bottom:15px}#level-clear-reward{color:#fc0;font-size:20px;margin-bottom:20px}#level-clear-stats{color:#ccc;margin-top:20px;text-align:left}#level-clear-stats p{margin-bottom:5px}#settings-screen{align-items:center;background-color:rgba(0,0,0,.95);display:none;flex-direction:column;height:100%;justify-content:center;left:0;position:absolute;top:0;width:100%;z-index:200}#settings-screen h2{color:#fff;font-size:36px;margin-bottom:30px}#settings-content{display:flex;flex-direction:column;gap:20px;margin-bottom:30px;width:300px}.setting-option{align-items:center;color:#fff;display:flex;font-size:18px;justify-content:space-between}.setting-option input[type=number]{background-color:#333;border:1px solid #555;border-radius:5px;color:#fff;font-size:16px;padding:5px;width:80px}.setting-option input[type=checkbox]{cursor:pointer;height:20px;width:20px}#cheat-screen h2{color:#fff;font-size:36px;margin-bottom:30px}#cheat-options{display:flex;flex-direction:column;gap:15px;margin-bottom:30px}.cheat-option{align-items:center;color:#fff;display:flex;font-size:18px;gap:10px}.cheat-option input[type=checkbox]{cursor:pointer;height:20px;width:20px}#activate-cheat{margin-bottom:10px}#activate-cheat,#back-to-menu-from-cheat{background-image:none}#high-scores{background-color:rgba(0,0,0,.7);border-radius:5px;color:#fff;display:inline-block;font-size:16px;margin-bottom:10px;margin-right:20px;margin-top:20px;padding:10px}#high-scores h3{font-size:18px;margin-bottom:10px}#high-scores-list{list-style:none}#high-scores-list li{margin:5px 0}#player{bottom:50px;height:60px;left:50%;position:absolute;transform:translateX(-50%);width:60px}#player img{height:100%;width:100%}.enemy{position:absolute}.enemy-small{height:30px;width:30px}.enemy-elite{height:50px;width:50px}.enemy-boss{height:100px;width:100px}.enemy img{height:100%;width:100%}.plane-option img{height:80%;width:80%}#gallery-button{background-image:none}#gallery-screen{align-items:center;background-color:rgba(0,0,0,.9);display:none;flex-direction:column;height:100%;justify-content:center;left:0;position:absolute;top:0;width:100%;z-index:150}#gallery-screen h2{color:#fff;font-size:36px;margin-bottom:30px}#gallery-container{display:grid;gap:20px;grid-template-columns:repeat(3,1fr);margin-bottom:30px}.gallery-item{align-items:center;color:#fff;display:flex;flex-direction:column}.gallery-item img{height:100px;margin-bottom:10px;width:100px}#back-to-menu-from-gallery{background-image:none}.bullet{height:30px;position:absolute;width:15px}.bullet img{height:100%;width:100%}.enemy-bullet{height:30px;position:absolute;width:15px}#game-over-screen,.enemy-bullet img{height:100%;width:100%}#game-over-screen{align-items:center;background-color:rgba(0,0,0,.8);display:none;flex-direction:column;justify-content:center;left:0;position:absolute;top:0;z-index:100}#game-over-screen h2{color:#fff;font-size:36px;margin-bottom:20px}#final-score{color:#fff;font-size:24px;margin-bottom:30px}#back-to-menu-button,#restart-button{background-image:none}