:root{--primary-blue:#1e40af;--secondary-blue:#3b82f6;--accent-blue:#60a5fa;--ocean-deep:#0f172a;--ocean-surface:#1e293b;--sand-light:#fef3c7;--sand-dark:#f59e0b;--ship-color:#3b82f6;--hit-color:#ef4444;--miss-color:#fbbf24;--closed-color:#10b981;--attention-color:#f59e0b;--text-light:#f8fafc;--text-dark:#1e293b;--shadow-light:rgba(0,0,0,.1);--shadow-dark:rgba(0,0,0,.3)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(135deg,var(--ocean-deep) 0,var(--ocean-surface) 100%);color:var(--text-light);min-height:100vh;overflow-x:auto}.app-container{min-height:100vh;position:relative;background:linear-gradient(135deg,#0f172a,#1e293b 50%,#334155)}.app-background{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;overflow:hidden}.ocean-waves{position:absolute;bottom:0;left:0;width:200%;height:100px;background:linear-gradient(45deg,transparent 30%,rgba(59,130,246,.1) 50%,transparent 70%);animation:wave 8s ease-in-out infinite}.ocean-waves:nth-child(2){animation-delay:-2s;opacity:.7}.ocean-waves:nth-child(3){animation-delay:-4s;opacity:.5}@keyframes wave{0%,to{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(-20px)}}.app-header{background:linear-gradient(135deg,var(--primary-blue) 0,var(--secondary-blue) 100%);padding:2rem 0;text-align:center;box-shadow:0 4px 20px var(--shadow-dark);position:relative;overflow:hidden}.app-header:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');opacity:.3}.header-content{position:relative;z-index:1}.game-title{font-size:3.5rem;font-weight:800;text-shadow:2px 2px 4px var(--shadow-dark);margin-bottom:.5rem;letter-spacing:.1em}.title-icon{display:inline-block;margin:0 1rem;animation:float 3s ease-in-out infinite}.title-icon:nth-child(2){animation-delay:1.5s}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.game-subtitle{font-size:1.2rem;opacity:.9;font-weight:300;letter-spacing:.05em}.win-message{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:1000;animation:slideIn .5s ease-out}.win-message.win{background:linear-gradient(135deg,#059669,#10b981)}.win-message.lose{background:linear-gradient(135deg,#dc2626,#ef4444)}.win-content{padding:2rem 3rem;border-radius:20px;box-shadow:0 20px 40px var(--shadow-dark);text-align:center;color:#fff;font-size:1.5rem;font-weight:700}.win-icon{display:inline-block;margin:0 1rem;font-size:2rem;animation:bounce 1s ease-in-out infinite}.win-icon:nth-child(2){animation-delay:.5s}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes slideIn{0%{opacity:0;transform:translate(-50%,-50%) scale(.8)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}.game-container{max-width:1400px;margin:0 auto;padding:2rem}.battlefields-wrapper{display:grid;grid-template-columns:repeat(auto-fit,minmax(500px,1fr));gap:3rem;margin-bottom:3rem}.battle-field-container{background:hsla(0,0%,100%,.05);border-radius:20px;padding:2rem;box-shadow:0 10px 30px var(--shadow-dark);backdrop-filter:blur(10px);border:1px solid hsla(0,0%,100%,.1);transition:transform .3s ease,box-shadow .3s ease}.battle-field-container:hover{transform:translateY(-5px);box-shadow:0 20px 40px var(--shadow-dark)}.battle-field-header{text-align:center;margin-bottom:2rem}.battle-field-title{font-size:2rem;font-weight:700;margin-bottom:.5rem;color:var(--text-light);text-shadow:1px 1px 2px var(--shadow-dark)}.battle-field-subtitle{font-size:.9rem;opacity:.7;text-transform:uppercase;letter-spacing:.1em;font-weight:500}.battle-field-grid{flex-direction:column;align-items:center;background:hsla(0,0%,100%,.1);padding:1rem;border-radius:15px;border:1px solid hsla(0,0%,100%,.2)}.battle-field-grid,.battle-field-row{display:flex;gap:2px}.battle-field-cell{width:40px;height:40px;border-radius:8px;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}.battle-field-cell:hover{transform:scale(1.1);box-shadow:0 4px 15px var(--shadow-dark);z-index:10}.computer-cell:hover{background:rgba(59,130,246,.3)!important;border:2px solid var(--accent-blue)!important}.user-cell:hover{background:rgba(16,185,129,.3)!important;border:2px solid var(--closed-color)!important}.hit-indicator,.miss-indicator,.ship-indicator{font-size:1.2rem;animation:popIn .3s ease-out}@keyframes popIn{0%{transform:scale(0);opacity:0}to{transform:scale(1);opacity:1}}.game-info{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.info-card{background:hsla(0,0%,100%,.05);border-radius:15px;padding:1.5rem;backdrop-filter:blur(10px);border:1px solid hsla(0,0%,100%,.1);transition:transform .3s ease}.info-card:hover{transform:translateY(-3px)}.info-card h3{font-size:1.3rem;margin-bottom:1rem;color:var(--accent-blue);text-align:center}.info-card ul{list-style:none;padding:0}.info-card li{padding:.5rem 0;border-bottom:1px solid hsla(0,0%,100%,.1);font-size:.95rem}.info-card li:last-child{border-bottom:none}.legend-item{display:flex;align-items:center;gap:1rem;padding:.5rem 0;border-bottom:1px solid hsla(0,0%,100%,.1)}.legend-item:last-child{border-bottom:none}.legend-color{width:20px;height:20px;border-radius:4px;border:1px solid hsla(0,0%,100%,.3)}.legend-color.ship{background:var(--ship-color)}.legend-color.hit{background:var(--hit-color)}.legend-color.miss{background:var(--miss-color)}@media (max-width:768px){.game-title{font-size:2.5rem}.battlefields-wrapper{grid-template-columns:1fr;gap:2rem}.battle-field-cell{width:35px;height:35px}.game-container{padding:1rem}.battle-field-container{padding:1.5rem}}@media (max-width:480px){.game-title{font-size:2rem}.battle-field-cell{width:30px;height:30px}.battle-field-container{padding:1rem}}.blinking{animation:blink .5s steps(2,start) infinite}@keyframes blink{0%,to{background-color:var(--attention-color);transform:scale(1.1)}50%{background-color:transparent;transform:scale(1)}}*{transition:background-color .2s ease,transform .2s ease,box-shadow .2s ease}