*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:#081626;color:#effaff;font-family:system-ui,-apple-system,"Hiragino Kaku Gothic ProN",sans-serif}body{min-height:100svh;overscroll-behavior:none}.app{height:100svh;min-height:520px;max-width:620px;margin:auto;padding:calc(env(safe-area-inset-top) + 12px) 16px calc(env(safe-area-inset-bottom) + 12px);display:flex;flex-direction:column;gap:12px}.topbar{display:flex;justify-content:space-between;align-items:center}.eyebrow{margin:0;color:#75d9ef;font-size:10px;font-weight:800;letter-spacing:.2em}.topbar h1{font-size:20px;margin:3px 0 0}.score{text-align:right}.score span,.statusbar{font-size:11px;color:#9eb6c7}.score strong{display:block;font-size:20px;color:#fff}.statusbar{display:flex;justify-content:space-between;align-items:center;border:1px solid #1e3b52;border-radius:12px;padding:10px 12px;background:#0c2032}.statusbar b{color:#fff}.statusbar small{color:#7690a3}.statusbar #combo{color:#72d9f4;font-size:9px;letter-spacing:.06em}.arena{position:relative;flex:1;min-height:0;border:1px solid #1b3d55;border-radius:20px;overflow:hidden;background:radial-gradient(ellipse at 50% 75%,#173b55 0,#0b2134 46%,#091827 100%);touch-action:none;user-select:none}canvas{display:block;width:100%;height:100%}.overlay{position:absolute;inset:0;display:grid;place-items:center;padding:22px;background:#06132199;backdrop-filter:blur(5px)}.overlay[hidden]{display:none}.panel{text-align:center;max-width:310px}.crystal-mark{font-size:46px;color:#9af2ff;text-shadow:0 0 30px #41d8f5}.panel h2{font-size:23px;margin:12px 0}.panel p:not(.eyebrow){font-size:13px;line-height:1.8;color:#c0d4e1}.panel button{width:100%;margin-top:14px;border:0;border-radius:14px;background:linear-gradient(120deg,#82f1fa,#64b5f5);color:#062033;font-weight:800;font-size:16px;padding:16px;box-shadow:0 8px 25px #42c7ec40}.judgment{position:absolute;top:32%;left:0;right:0;text-align:center;font-weight:900;font-size:32px;letter-spacing:.12em;opacity:0;pointer-events:none;text-shadow:0 3px 15px #001}.judgment.show{animation:pop .65s ease-out}.judgment[data-type=PERFECT]{color:#a4f6ff}.judgment[data-type=GOOD]{color:#ffe39c}.judgment[data-type=MISS]{color:#ff8d9f}@keyframes pop{0%{opacity:0;transform:scale(.7)}20%,70%{opacity:1;transform:scale(1)}100%{opacity:0;transform:translateY(-18px)}}footer{display:flex;justify-content:space-between;color:#7892a5;font-size:10px;padding:2px 3px}@media(max-height:650px){.app{gap:8px;padding-top:calc(env(safe-area-inset-top) + 7px);padding-bottom:calc(env(safe-area-inset-bottom) + 7px)}.topbar h1{font-size:18px}.statusbar{padding:7px 10px}.arena{border-radius:15px}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important}}

.arena-background{position:absolute;inset:0;z-index:0;background-position:center;background-size:cover;opacity:0;transition:opacity .75s ease;pointer-events:none}
.arena-background::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,13,34,.44),rgba(5,13,34,.36) 48%,rgba(5,13,34,.50))}
.arena-background--normal{background-image:url("./assets/background-normal.jpg?v=ct-p1-20261013")}
.arena-background--high{background-image:url("./assets/background-high.jpg?v=ct-p1-20261013")}
.arena-background.is-active{opacity:1}
#game-canvas{position:relative;z-index:1}
.overlay{z-index:2}
.judgment{z-index:3}
@media(prefers-reduced-motion:reduce){.arena-background{transition:none}}
.topbar-actions{display:flex;align-items:center;gap:12px}.sound-toggle{width:44px;height:44px;flex:none;border:1px solid #31566d;border-radius:13px;background:#102a3d;color:#aaf4ff;font:700 20px system-ui;cursor:pointer;touch-action:manipulation}.sound-toggle[aria-pressed="false"]{color:#91a5b3;background:#0b1c2a}.sound-toggle:focus-visible{outline:2px solid #9bf2ff;outline-offset:2px}

.overlay{overflow:auto}
.overlay-actions,.dialog-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:12px}
.secondary-button,.primary-small,.dialog-close{min-height:44px;border:1px solid #31566d;border-radius:12px;background:#102a3d;color:#d9f7ff;font:700 13px system-ui;cursor:pointer;touch-action:manipulation;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;padding:10px}
.secondary-button:hover,.dialog-close:hover{background:#183a51}
.secondary-button:focus-visible,.primary-small:focus-visible,.dialog-close:focus-visible{outline:2px solid #9bf2ff;outline-offset:2px}
.secondary-button[hidden]{display:none}
.ranking-status{min-height:1.4em;margin:8px 0;color:#b8d3e1;font-size:12px;line-height:1.45}
.ranking-dialog{width:min(92vw,440px);max-width:calc(100vw - 24px);max-height:min(86svh,700px);margin:auto;padding:20px;border:1px solid #31566d;border-radius:20px;background:#0b1e2e;color:#effaff;box-shadow:0 24px 80px #0009}
.ranking-dialog::backdrop{background:#020a12c9;backdrop-filter:blur(4px)}
.ranking-dialog[open]{display:block}
.ranking-dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}
.ranking-dialog-heading h2{font-size:20px;margin:4px 0 0}
.dialog-close{width:44px;min-width:44px;height:44px;padding:0;font-size:24px}
.ranking-dialog-status{min-height:1.5em;margin:12px 0;color:#b8d3e1;font-size:13px;line-height:1.5}
.ranking-list{list-style:none;padding:0;margin:0;max-height:min(55svh,480px);overflow-y:auto;overscroll-behavior:contain;border-top:1px solid #29485e}
.ranking-row{display:grid;grid-template-columns:48px minmax(0,1fr) auto;align-items:center;gap:10px;min-height:48px;padding:7px 9px;border-bottom:1px solid #1e394d;font-size:14px}
.ranking-row--self{background:#12415a;box-shadow:inset 3px 0 #75e8fa}
.ranking-rank{font-weight:800;color:#9beefe}.ranking-name{overflow-wrap:anywhere}.ranking-score{font-variant-numeric:tabular-nums;font-weight:800;white-space:nowrap}.ranking-self-label{font-size:10px;color:#9deaf5}.ranking-empty{padding:18px 8px;color:#b8d3e1;line-height:1.6}
.dialog-actions .secondary-button,.dialog-actions .primary-small{width:100%;margin:0}
.primary-small{border:0;background:linear-gradient(120deg,#82f1fa,#64b5f5);color:#062033}.primary-small:disabled{opacity:.45;cursor:not-allowed}
.name-privacy-note{color:#b8d3e1;font-size:12px;line-height:1.6}
.name-dialog form{display:grid;gap:8px}.name-dialog label{font-size:13px;font-weight:700}.name-dialog input{width:100%;min-height:48px;padding:10px 12px;border:1px solid #49728a;border-radius:12px;background:#061522;color:#fff;font:16px system-ui}.name-dialog input:focus{outline:2px solid #8cecff;outline-offset:1px}.name-error{min-height:1.4em;margin:0;color:#ffadb9;font-size:12px;line-height:1.45}
@media(max-width:360px){.ranking-dialog{padding:16px}.ranking-row{grid-template-columns:40px minmax(0,1fr) auto;gap:7px;padding-inline:6px}.panel h2{font-size:21px}.secondary-button{font-size:12px;padding:8px}}