:root{--bg-primary: #0a0a1a;--bg-secondary: #12122a;--bg-cell: #1a1a3a;--border-neon: #3a3a6a;--player-1: #00d4ff;--player-2: #ff4757;--player-3: #2ed573;--text-primary: #ffffff;--text-secondary: #a0a0c0;--star-gold: #ffd700;--highlight: rgba(255, 215, 0, .3)}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%;width:100%}body{font-family:Helvetica Neue,Arial,Hiragino Kaku Gothic ProN,Hiragino Sans,Meiryo,sans-serif;background:var(--bg-primary);color:var(--text-primary);overflow-x:hidden}.app-container{min-height:100%;display:flex;flex-direction:column;padding:12px;max-width:500px;margin:0 auto}.header{text-align:center;margin-bottom:12px}.header h1{font-size:2rem;font-weight:900;background:linear-gradient(135deg,var(--player-1),var(--player-3),var(--player-2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:0 0 30px rgba(0,212,255,.5);letter-spacing:.1em}.player-info{display:flex;justify-content:space-around;margin-bottom:12px;gap:8px}.player-card{flex:1;background:var(--bg-secondary);border-radius:12px;padding:8px 4px;text-align:center;border:2px solid transparent;transition:all .3s ease}.player-card.active{transform:scale(1.05);box-shadow:0 0 20px currentColor}.player-card.player-0{border-color:var(--player-1);color:var(--player-1)}.player-card.player-1{border-color:var(--player-2);color:var(--player-2)}.player-card.player-2{border-color:var(--player-3);color:var(--player-3)}.player-name{font-size:.9rem;font-weight:700;margin-bottom:4px}.player-pieces{font-size:1.2rem;font-weight:900}.message-area{background:var(--bg-secondary);border-radius:12px;padding:12px;margin-bottom:12px;text-align:center;min-height:60px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border-neon)}.message-text{font-size:1rem;font-weight:600;line-height:1.4}.message-text.yaku{font-size:1.2rem;animation:pulse .5s ease-in-out infinite alternate}@keyframes pulse{0%{opacity:.8}to{opacity:1}}.dice-area{display:flex;flex-direction:column;align-items:center;margin-bottom:12px}.dice-container{display:flex;gap:12px;margin-bottom:12px}.dice{width:56px;height:56px;background:linear-gradient(145deg,#2a2a5a,#1a1a3a);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:900;color:var(--text-primary);border:2px solid var(--border-neon);box-shadow:0 4px 15px #00000080;transition:all .1s ease}.dice.rolling{animation:dice-bounce .15s ease-in-out infinite,dice-glow .3s ease-in-out infinite alternate;border-color:var(--star-gold)}.dice.rolling:nth-child(1){animation-delay:0s}.dice.rolling:nth-child(2){animation-delay:.05s}.dice.rolling:nth-child(3){animation-delay:.1s}@keyframes dice-bounce{0%,to{transform:translateY(0) rotate(-8deg) scale(1)}25%{transform:translateY(-12px) rotate(5deg) scale(1.1)}50%{transform:translateY(-5px) rotate(-3deg) scale(1.05)}75%{transform:translateY(-15px) rotate(8deg) scale(1.15)}}@keyframes dice-glow{0%{box-shadow:0 4px 15px #ffd7004d}to{box-shadow:0 8px 30px #ffd700b3,0 0 20px #ffd70080}}.roll-button{background:linear-gradient(135deg,var(--player-1),#0088cc);color:#fff;border:none;padding:14px 40px;font-size:1.2rem;font-weight:700;border-radius:30px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 20px #00d4ff66}.roll-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 25px #00d4ff99}.roll-button:disabled{background:#333;cursor:not-allowed;box-shadow:none}.board{display:grid;grid-template-columns:repeat(6,1fr);gap:4px;background:var(--bg-secondary);padding:8px;border-radius:16px;border:2px solid var(--border-neon);margin-bottom:12px}.cell{aspect-ratio:1;background:var(--bg-cell);border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:2px solid transparent;cursor:default;transition:all .2s ease;position:relative}.cell.placeable{cursor:pointer;animation:glow .8s ease-in-out infinite alternate;border-color:var(--star-gold)}@keyframes glow{0%{box-shadow:0 0 5px var(--star-gold)}to{box-shadow:0 0 20px var(--star-gold),0 0 30px var(--star-gold)}}.cell.star{background:linear-gradient(135deg,#2a2a4a,#3a3a6a)}.cell-number{font-size:.75rem;font-weight:600;color:var(--text-secondary);position:absolute;top:2px;left:4px}.cell.star .cell-number{color:var(--star-gold);font-size:1rem}.cell-piece{width:70%;height:70%;border-radius:50%;box-shadow:0 2px 10px #00000080}.cell-piece.player-0{background:radial-gradient(circle at 30% 30%,#66e0ff,var(--player-1),#0088aa)}.cell-piece.player-1{background:radial-gradient(circle at 30% 30%,#ff8080,var(--player-2),#aa2233)}.cell-piece.player-2{background:radial-gradient(circle at 30% 30%,#80ff99,var(--player-3),#22aa44)}.cell.star .cell-piece{border:2px solid var(--star-gold)}.dice-sum{font-size:.9rem;color:var(--text-secondary);margin-top:4px}.winner-overlay{position:fixed;inset:0;background:#000000e6;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:100}.winner-text{font-size:2.5rem;font-weight:900;margin-bottom:20px;text-align:center;animation:winner-glow 1s ease-in-out infinite alternate}@keyframes winner-glow{0%{text-shadow:0 0 20px currentColor}to{text-shadow:0 0 40px currentColor,0 0 60px currentColor}}.winner-text.player-0{color:var(--player-1)}.winner-text.player-1{color:var(--player-2)}.winner-text.player-2{color:var(--player-3)}.restart-button{background:linear-gradient(135deg,var(--star-gold),#cc9900);color:#000;border:none;padding:16px 48px;font-size:1.3rem;font-weight:700;border-radius:30px;cursor:pointer;transition:all .3s ease}.restart-button:hover{transform:scale(1.05)}@media(min-width:600px){.app-container{padding:24px}.header h1{font-size:3rem}.dice{width:72px;height:72px;font-size:2.5rem}}.title-screen{justify-content:center;align-items:center;min-height:100vh;background:radial-gradient(ellipse at center,#1a1a3a,#0a0a1a)}.title-content{text-align:center;width:100%;max-width:400px}.title-logo{font-size:3.5rem;font-weight:900;background:linear-gradient(135deg,var(--player-1),var(--star-gold),var(--player-2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:8px;animation:title-glow 2s ease-in-out infinite alternate}@keyframes title-glow{0%{filter:drop-shadow(0 0 20px rgba(255,215,0,.5))}to{filter:drop-shadow(0 0 40px rgba(255,215,0,.8))}}.title-tagline{font-size:1.1rem;color:var(--text-secondary);margin-bottom:32px}.player-setup{background:var(--bg-secondary);border-radius:16px;padding:16px;margin-bottom:24px}.player-setup h3{margin-bottom:12px;color:var(--text-secondary)}.player-input{margin-bottom:8px;border:2px solid;border-radius:8px;overflow:hidden}.player-input input{width:100%;padding:10px 12px;background:var(--bg-cell);border:none;font-size:1rem;font-weight:600;text-align:center;outline:none}.start-button{width:100%;padding:16px;font-size:1.3rem;font-weight:700;background:linear-gradient(135deg,var(--star-gold),#cc9900);color:#000;border:none;border-radius:30px;cursor:pointer;margin-bottom:12px;transition:all .3s ease}.start-button:hover{transform:scale(1.03);box-shadow:0 8px 30px #ffd70080}.rules-button{width:100%;padding:12px;font-size:1rem;font-weight:600;background:transparent;color:var(--text-secondary);border:2px solid var(--border-neon);border-radius:30px;cursor:pointer;transition:all .3s ease}.rules-button:hover{background:var(--bg-secondary);color:var(--text-primary)}.rules-overlay{position:fixed;inset:0;background:#000000e6;display:flex;align-items:center;justify-content:center;z-index:200;padding:20px}.rules-content{background:var(--bg-secondary);border-radius:20px;padding:24px;max-width:400px;width:100%;max-height:80vh;overflow-y:auto;border:2px solid var(--border-neon)}.rules-content h2{text-align:center;margin-bottom:16px;color:var(--star-gold)}.rules-content h3{margin:16px 0 8px;color:var(--player-1)}.rules-content p,.rules-content ol{color:var(--text-secondary);line-height:1.6;margin-bottom:8px}.rules-content ol{padding-left:20px}.rules-content table{width:100%;margin:12px 0;border-collapse:collapse}.rules-content td{padding:8px 4px;border-bottom:1px solid var(--border-neon);font-size:.9rem}.rules-content td:first-child{color:var(--star-gold);font-weight:600}.close-rules{width:100%;padding:12px;margin-top:16px;font-size:1rem;font-weight:600;background:var(--bg-cell);color:var(--text-primary);border:2px solid var(--border-neon);border-radius:8px;cursor:pointer}.header{position:relative}.help-button{position:absolute;right:0;top:50%;transform:translateY(-50%);background:var(--bg-secondary);border:2px solid var(--border-neon);color:var(--text-secondary);width:36px;height:36px;border-radius:50%;font-size:1.2rem;cursor:pointer;transition:all .2s}.help-button:hover{background:var(--border-neon);color:var(--text-primary)}.yaku-effect{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:150;animation:yaku-appear .5s ease-out,yaku-disappear .5s ease-in 2s forwards;pointer-events:none}.yaku-content{display:flex;flex-direction:column;align-items:center;padding:24px 40px;border-radius:20px;text-align:center}.yaku-dice{font-size:2.5rem;margin-bottom:8px;letter-spacing:8px}.yaku-name{font-size:2.5rem;font-weight:900;margin-bottom:8px}.yaku-desc{font-size:1.1rem;font-weight:600}.yaku-trinity .yaku-content{background:linear-gradient(135deg,#ff0,#f80,#ff0);color:#000;animation:rainbow-glow .3s infinite}.yaku-burst .yaku-content{background:linear-gradient(135deg,#ff4757,#ff6b81);color:#fff;box-shadow:0 0 60px #ff4757}.yaku-step .yaku-content{background:linear-gradient(135deg,#00d4ff,#08c);color:#fff;box-shadow:0 0 60px #00d4ff}.yaku-down .yaku-content{background:linear-gradient(135deg,#222,#444);color:#ff4757;box-shadow:0 0 40px #ff475780;border:3px solid #ff4757}@keyframes yaku-appear{0%{transform:translate(-50%,-50%) scale(0);opacity:0}to{transform:translate(-50%,-50%) scale(1);opacity:1}}@keyframes yaku-disappear{0%{opacity:1}to{opacity:0}}@keyframes rainbow-glow{0%,to{box-shadow:0 0 60px #ff0,0 0 100px #f80}50%{box-shadow:0 0 80px #f80,0 0 120px #ff0}}.gameover-screen{justify-content:center;align-items:center;min-height:100vh;background:radial-gradient(ellipse at center,#1a1a3a,#0a0a1a)}.gameover-content{text-align:center;width:100%;max-width:400px}.winner-announce{font-size:2rem;font-weight:900;margin-bottom:24px;animation:winner-glow 1s ease-in-out infinite alternate}.final-scores{background:var(--bg-secondary);border-radius:16px;padding:16px;margin-bottom:24px}.final-scores h3{margin-bottom:12px;color:var(--text-secondary)}.score-row{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;margin-bottom:8px;background:var(--bg-cell);border-radius:8px;border:2px solid}.score-row.winner{background:#ffd7001a}.score-name{font-weight:700}.score-value{font-size:1.2rem;font-weight:900;color:var(--text-primary)}.score-pieces{font-size:.8rem;color:var(--text-secondary)}.gameover-buttons{display:flex;flex-direction:column;gap:12px}.back-button{padding:14px;font-size:1rem;font-weight:600;background:transparent;color:var(--text-secondary);border:2px solid var(--border-neon);border-radius:30px;cursor:pointer}.dice-3d-container{perspective:600px;width:60px;height:60px}.dice-3d{width:100%;height:100%;position:relative;transform-style:preserve-3d;transition:transform .1s}.dice-3d.rolling{animation:dice-roll-3d .8s ease-out}@keyframes dice-roll-3d{0%{transform:rotateX(0) rotateY(0) rotate(0)}20%{transform:rotateX(180deg) rotateY(90deg) rotate(45deg) translateY(-30px)}40%{transform:rotateX(360deg) rotateY(180deg) rotate(90deg) translateY(-20px)}60%{transform:rotateX(540deg) rotateY(270deg) rotate(135deg) translateY(-40px)}80%{transform:rotateX(720deg) rotateY(360deg) rotate(180deg) translateY(-15px)}to{transform:rotateX(var(--final-x)) rotateY(var(--final-y)) rotate(0) translateY(0)}}.dice-face{position:absolute;width:60px;height:60px;background:linear-gradient(145deg,#fff,#e0e0e0);border:2px solid #aaa;border-radius:8px;display:flex;flex-wrap:wrap;align-items:center;justify-content:center;padding:8px;box-shadow:inset 0 0 10px #0000001a}.dice-dot{width:10px;height:10px;background:radial-gradient(circle at 30% 30%,#333,#000);border-radius:50%;margin:2px}.dice-face-1{transform:rotateY(0) translateZ(30px)}.dice-face-6{transform:rotateY(180deg) translateZ(30px)}.dice-face-2{transform:rotateY(90deg) translateZ(30px)}.dice-face-5{transform:rotateY(-90deg) translateZ(30px)}.dice-face-3{transform:rotateX(90deg) translateZ(30px)}.dice-face-4{transform:rotateX(-90deg) translateZ(30px)}