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ease}.game-start-button:hover{transform:translateY(-5px);box-shadow:0 12px 40px #ffd70099}.game-start-button:active{transform:translateY(-2px)}.top-footer{position:relative;z-index:1;width:min(100%,720px);margin-top:auto;padding-top:clamp(8px,1.6vh,14px);color:#ffffff80;font-size:clamp(11px,1.5vh,13px);line-height:1.35;text-align:center}.top-footer p+p{margin-top:8px}.top-footer a{color:gold;text-decoration:none;transition:opacity .3s ease}.top-footer a:hover{opacity:.8}@media (max-width: 768px){.top-background{background:radial-gradient(circle at 24% 18%,rgba(255,215,0,.14) 0,transparent 24vmax),radial-gradient(circle at 78% 24%,rgba(255,166,0,.11) 0,transparent 22vmax),radial-gradient(circle at 50% 100%,rgba(148,163,184,.1) 0,transparent 30vmax),linear-gradient(160deg,#ffffff05,#0f172a1f)}.top-description{padding:0 8px}.game-start-button{width:100%}}@media (max-width: 480px){.top-background:before{top:4%;left:-18%;width:180px;height:180px}.top-background:after{right:-18%;bottom:-6%;width:220px;height:220px}#top-container{padding-right:16px;padding-left:16px}.top-content{padding:32px 18px 24px}.top-subtitle{margin-bottom:22px}.top-description{margin-bottom:28px}.game-start-button{padding:16px 24px;letter-spacing:1px}.top-footer{font-size:12px}}@media (max-height: 820px){.top-content{padding-top:18px;padding-bottom:12px}}@media (max-height: 700px){.top-description{line-height:1.45}.top-footer p+p{margin-top:4px}}@media (max-height: 620px){.top-description{font-size:13px;margin-bottom:14px}.game-start-button{min-width:min(100%,280px)}.top-footer{font-size:10px}}@media (orientation: landscape){#top-container{padding:max(10px,env(safe-area-inset-top)) max(18px,env(safe-area-inset-right)) max(10px,env(safe-area-inset-bottom)) max(18px,env(safe-area-inset-left))}.top-content{max-width:min(100%,980px);padding:14px 20px 10px}.top-logo{font-size:clamp(36px,7vh,64px)}.top-title{font-size:clamp(30px,5.8vh,56px)}.top-subtitle{margin-bottom:10px;font-size:clamp(15px,2.8vh,22px)}.top-description{max-width:760px;margin-bottom:16px;font-size:clamp(13px,1.9vh,16px);line-height:1.45}.game-start-button{min-width:min(100%,260px);padding:12px 24px;font-size:clamp(16px,2.5vh,22px)}.top-footer{padding-top:6px;font-size:clamp(10px,1.7vh,12px)}}@media (orientation: landscape) and (max-height: 520px){#top-container{overflow-y:auto}.top-description{font-size:12px;margin-bottom:10px}.top-footer{padding-top:4px;font-size:9px;line-height:1.2}.top-footer p+p{margin-top:2px}}#auth-container{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;justify-content:center;align-items:center;min-height:100vh;min-height:100dvh;padding:max(14px,env(safe-area-inset-top)) 16px max(16px,env(safe-area-inset-bottom));background:linear-gradient(135deg,#1a1a2e,#16213e);z-index:1000;transition:opacity .5s ease-out;overflow:hidden}#auth-container.hidden{opacity:0;pointer-events:none}.auth-box{width:min(100%,460px);margin:auto 0;padding:clamp(18px,3.2vh,32px) clamp(16px,2.4vw,28px);border:2px solid rgba(255,215,0,.3);border-radius:24px;background:#ffffff0d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 8px 32px #0000004d;animation:slideIn .5s ease-out}@keyframes slideIn{0%{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}.auth-title{margin-bottom:10px;color:gold;font-size:clamp(28px,min(6vw,5vh),44px);font-weight:700;line-height:1;text-align:center;text-shadow:0 0 20px rgba(255,215,0,.5)}.auth-subtitle{margin-bottom:clamp(12px,2vh,24px);color:#fff;font-size:clamp(15px,3vw,18px);text-align:center;opacity:.8}.auth-mode-title{margin-bottom:clamp(12px,2vh,20px);color:gold;font-size:clamp(22px,4vw,28px);font-weight:700;text-align:center}.auth-form{display:flex;flex-direction:column;gap:clamp(10px,1.5vh,14px)}.form-group{display:flex;flex-direction:column;gap:5px}.form-group label{color:#fff;font-size:13px;font-weight:500;letter-spacing:.02em;opacity:.9}.form-group input{width:100%;min-height:44px;padding:11px 14px;border:2px solid rgba(255,215,0,.4);border-radius:12px;background:#ffffffe6;box-sizing:border-box;font-size:16px;transition:border-color .3s ease,background .3s ease,box-shadow .3s ease}.form-group input:focus{outline:none;border-color:gold;background:#fff;box-shadow:0 0 0 3px #ffd70033}.form-group input::placeholder{color:#999}.error-message{min-height:18px;margin:2px 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1;font-size:clamp(16px,2.4vw,20px)}.friend-search-key:hover{background:#283864;border-color:#7088c8;transform:translateY(-2px)}.friend-search-key:active{transform:translateY(0);background:#6f86c8;color:#0a1430}.friend-search-result-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 16px;border-radius:18px;background:#ffffff14;border:1px solid rgba(143,183,255,.08)}.friend-search-result-info{min-width:0;display:flex;flex-direction:column;gap:4px}.friend-search-result-name{color:#fff;font-family:Senobi Gothic,Noto Sans JP,sans-serif;font-size:18px;font-weight:700}.friend-search-result-id{color:#e0e8f09e;font-family:Noto Sans JP,sans-serif;font-size:12px;letter-spacing:.08em}.friend-search-result-action{min-width:96px;min-height:40px;border:none;border-radius:999px;background:#3a5cb8;color:#fff;font-family:Senobi Gothic,Noto Sans JP,sans-serif;font-size:14px;font-weight:700;cursor:pointer;transition:transform .15s ease,background-color .15s ease}.friend-search-result-action:hover:not(:disabled){background:#4d72d4;transform:translateY(-1px)}.friend-search-result-action:disabled{background:#ffffff2e;color:#ffffffb8;cursor:default}.friend-search-actions{justify-content:stretch}.friend-search-button{flex:1;min-height:clamp(44px,7vw,52px);border:none;border-radius:14px;font-family:Senobi Gothic,Noto Sans JP,sans-serif;font-size:clamp(16px,2.4vw,20px);font-weight:700;cursor:pointer;transition:transform .15s ease,background-color .15s ease}.friend-search-button.search{background:#ff3d68;color:#fff;box-shadow:0 4px 14px #ff3d6852}.friend-search-button.search:hover:not(:disabled){background:#ff537a;transform:translateY(-1px)}.friend-search-button.search:disabled{background:#1a2238;color:#4a5876;box-shadow:none;cursor:not-allowed}.friend-search-button.cancel{border:1px solid #3a4a78;background:#1c2750;color:#a8b8d8}.friend-search-button.cancel:hover{background:#283864;transform:translateY(-1px)}.friend-search-result-popup{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;justify-content:center;align-items:center;background:#060c1ab3;z-index:10001;animation:friend-search-fade-in .18s ease-out}.friend-search-result-popup-card{width:min(480px,90vw);max-height:80vh;border-radius:22px;border:1px solid rgba(108,138,210,.32);background:linear-gradient(180deg,#0e183c,#162456);box-shadow:0 24px 80px #00000094;padding:24px 22px 20px;display:flex;flex-direction:column;gap:16px;animation:friend-search-slide-up .24s ease-out}.friend-search-result-popup-message{color:#d6e2f5;font-family:Senobi Gothic,Noto Sans JP,sans-serif;font-size:18px;text-align:center;padding:22px 8px}.friend-search-result-popup-list{display:flex;flex-direction:column;gap:10px;overflow-y:auto;max-height:50vh}.friend-search-result-popup .friend-search-result-row{background:#2838648c;border:1px solid rgba(112,136,200,.18);padding:12px 14px;border-radius:16px}.friend-search-result-avatar{width:48px;height:48px;flex:0 0 48px;border-radius:999px;background:#283864;border:2px solid #7088c8}.friend-search-result-row{display:flex;align-items:center;gap:12px}.friend-search-result-popup-close{align-self:stretch}@keyframes friend-search-fade-in{0%{opacity:0}to{opacity:1}}@keyframes friend-search-slide-up{0%{transform:translateY(36px);opacity:0}to{transform:translateY(0);opacity:1}}@media (max-width: 640px){.friend-search-display{gap:6px}}@media (max-width: 719px){.friend-search-result-row{flex-direction:column;align-items:stretch}.friend-search-result-action{width:100%}}@media (max-width: 899px),(max-height: 639px){.friend-search-subtitle{font-size:14px;line-height:1.55}.friend-search-result-name{font-size:16px}}@media (max-height: 520px){.friend-search-overlay{--dom-overlay-card-width: min(560px, calc((100dvh - 16px)*1.64) );--dom-overlay-card-padding: clamp(12px, 3.6dvh, 18px);--dom-overlay-card-gap: clamp(6px, 1.8dvh, 10px);--dom-overlay-card-radius: clamp(14px, 4.6dvh, 18px);--dom-overlay-pad-y: max(6px, env(safe-area-inset-top));--dom-overlay-pad-x: max(10px, env(safe-area-inset-left))}.friend-search-container{max-height:calc(100dvh - max(12px,env(safe-area-inset-top)) - max(12px,env(safe-area-inset-bottom)))}.friend-search-header{gap:clamp(3px,1.2dvh,6px)}.friend-search-body{gap:clamp(5px,1.6dvh,8px);overflow:hidden}.friend-search-title{font-size:clamp(22px,7.4dvh,30px);line-height:1.15}.friend-search-subtitle{font-size:clamp(11px,3.4dvh,13px);line-height:1.35}.friend-search-hint{display:none}.friend-search-display{gap:clamp(4px,1.5dvh,7px)}.friend-search-digit{height:clamp(34px,10.6dvh,44px);border-width:1px;border-radius:clamp(8px,3dvh,11px);font-size:clamp(18px,6.2dvh,26px)}.friend-search-digit-gap{margin-left:clamp(3px,1.5dvh,7px)}.friend-search-tools{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(5px,1.6dvh,8px)}.friend-search-tool-button{min-height:clamp(30px,8.8dvh,38px);border-radius:clamp(8px,2.8dvh,11px);font-size:clamp(11px,3.2dvh,14px)}.friend-search-keyboard{grid-template-columns:repeat(5,1fr);gap:clamp(5px,1.7dvh,8px)}.friend-search-key{min-height:clamp(32px,9.2dvh,42px);border-width:1px;border-radius:clamp(9px,3dvh,13px);font-size:clamp(18px,5.8dvh,25px)}.friend-search-key.wide{grid-column:auto}.friend-search-message{min-height:clamp(14px,4.2dvh,18px);font-size:clamp(11px,3.1dvh,13px);line-height:1.25}.friend-search-results{min-height:0;max-height:min(72px,17dvh);gap:6px}.friend-search-result-row{padding:8px 10px;border-radius:12px}.friend-search-empty{padding:8px 10px;font-size:11px}.friend-search-actions{flex-direction:row;gap:clamp(8px,2dvh,12px)}.friend-search-button{min-height:clamp(36px,9.8dvh,44px);border-radius:clamp(10px,3dvh,13px);font-size:clamp(13px,3.8dvh,17px)}}@media (max-height: 380px){.friend-search-subtitle{display:none}.friend-search-results{max-height:0;overflow:hidden;padding:0}}