:root{color-scheme:dark;--bg:#090b10;--panel:#121722;--line:#293244;--text:#f5f7fb;--muted:#9aa7ba;--gold:#f5c451;--red:#d84a4a;--shadow:0 24px 70px rgba(0,0,0,.45);--cube-size:min(34vw,170px);--cube-half:min(17vw,85px);--dice-shadow-width:min(41vw,204px)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at top,#1a2130 0,#090b10 48%,#050609 100%);color:var(--text);font-family:Inter,"Noto Sans JP",system-ui,sans-serif}.game-shell{width:min(100% - 32px,760px);margin:0 auto;padding:28px 0 64px}.game-header{text-align:center;margin-bottom:22px}.back-link{display:inline-block;margin-bottom:26px;color:var(--muted);text-decoration:none;font-size:13px}.eyebrow{margin:0 0 6px;color:var(--gold);font-size:11px;font-weight:900;letter-spacing:.18em}.game-header h1,.ranking-head h2,.clear-dialog h2{margin:0}.game-header h1{font-size:clamp(34px,8vw,64px);letter-spacing:.04em}.game-header>p:last-child{color:var(--muted)}.game-card,.ranking-card{background:linear-gradient(180deg,rgba(21,27,39,.98),rgba(11,15,23,.98));border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.game-card{padding:24px}.status-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.status-grid div{padding:14px;text-align:center;border:1px solid var(--line);border-radius:12px;background:#0c111a}.status-grid span{display:block;color:var(--muted);font-size:10px;letter-spacing:.14em}.status-grid strong{display:block;margin-top:4px;font-size:28px}.dice-stage{position:relative;display:grid;place-items:center;min-height:280px;margin:18px 0 8px;perspective:900px;overflow:hidden}.dice-halo{position:absolute;width:230px;height:230px;border-radius:50%;background:radial-gradient(circle,rgba(245,196,81,.18),transparent 68%);filter:blur(5px)}.dice-shadow{position:absolute;width:var(--dice-shadow-width);height:26px;bottom:34px;border-radius:999px;background:rgba(0,0,0,.34);filter:blur(12px);transition:transform .2s ease,opacity .2s ease}.dice-stage.is-rolling .dice-shadow{opacity:.58;transform:translateY(12px) scale(.86)}.dice-cube{position:relative;width:var(--cube-size);height:var(--cube-size);transform-style:preserve-3d;will-change:transform}.dice-face{position:absolute;inset:0;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:8px;padding:14px;border-radius:24px;background:linear-gradient(145deg,#fffef9,#e9e1d5);border:2px solid rgba(72,77,88,.14);box-shadow:inset 0 0 0 1px rgba(255,255,255,.75),0 12px 24px rgba(0,0,0,.16);backface-visibility:hidden;-webkit-backface-visibility:hidden}.dice-face::after{content:"";position:absolute;inset:7px;border-radius:18px;border:1px solid rgba(214,83,60,.08)}.pip{width:20px;height:20px;align-self:center;justify-self:center;border-radius:50%;background:radial-gradient(circle at 35% 35%,#4d5665,#161c27);box-shadow:inset 0 1px 2px rgba(255,255,255,.18);opacity:0}.pip.show{opacity:1}.face-1{transform:rotateY(0deg) translateZ(var(--cube-half))}.face-2{transform:rotateY(90deg) translateZ(var(--cube-half))}.face-3{transform:rotateY(180deg) translateZ(var(--cube-half))}.face-4{transform:rotateY(-90deg) translateZ(var(--cube-half))}.face-5{transform:rotateX(90deg) translateZ(var(--cube-half))}.face-6{transform:rotateX(-90deg) translateZ(var(--cube-half))}.message{min-height:48px;margin:0 0 14px;text-align:center;color:#dce3ef;font-weight:800;line-height:1.6}.message.bonus{color:var(--gold)}.message.pinzoro{color:#fff;text-shadow:0 0 18px rgba(245,196,81,.9)}.roll-button{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;border:0;border-radius:12px;padding:15px 18px;background:linear-gradient(180deg,#e65a55,#b92f32);color:#fff;font-size:16px;font-weight:900;cursor:pointer;box-shadow:0 10px 24px rgba(185,47,50,.3)}.roll-button small{font-size:10px;letter-spacing:.12em;opacity:.82}.roll-button:disabled{cursor:not-allowed;opacity:.45}.history-wrap{margin-top:18px;padding:14px;border-top:1px solid var(--line);text-align:center}.history-wrap span{color:var(--muted);font-size:11px;letter-spacing:.12em}.history-wrap p{margin:7px 0 0;overflow-wrap:anywhere}.rules{margin-top:14px;color:var(--muted);font-size:13px}.rules summary{cursor:pointer;color:#dbe3ef;font-weight:800}.rules ul{padding-left:20px;line-height:1.8}.ranking-card{margin-top:18px;padding:22px}.ranking-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px}.ranking-note{color:var(--muted);font-size:12px}.text-button{border:0;background:none;color:var(--muted);text-decoration:underline;text-underline-offset:3px;cursor:pointer}.ranking-list{margin:18px 0 0;padding:0;list-style:none}.ranking-list li{display:grid;grid-template-columns:42px 1fr auto;align-items:center;gap:12px;padding:12px 4px;border-top:1px solid var(--line)}.ranking-list .rank{color:var(--gold);font-weight:900}.ranking-list .empty{display:block;color:var(--muted);text-align:center}.clear-dialog{width:min(100% - 32px,440px);border:1px solid var(--line);border-radius:18px;padding:0;background:#101722;color:var(--text);box-shadow:var(--shadow)}.clear-dialog::backdrop{background:rgba(0,0,0,.75);backdrop-filter:blur(5px)}.clear-dialog form{padding:26px}.clear-dialog label{display:grid;gap:8px;margin:22px 0;color:var(--muted);font-size:12px}.clear-dialog input{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px;background:#090d14;color:#fff;font:inherit}.dialog-actions{display:flex;align-items:center;gap:12px}.dialog-actions .roll-button{flex:1}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:520px){:root{--cube-size:124px;--cube-half:62px;--dice-shadow-width:150px}.game-shell{width:min(100% - 20px,760px);padding-top:18px}.game-card,.ranking-card{border-radius:14px}.game-card{padding:16px}.status-grid div{padding:11px 6px}.status-grid strong{font-size:23px}.dice-stage{min-height:230px}.pip{width:16px;height:16px}.ranking-head{align-items:flex-start;flex-direction:column}.dialog-actions{align-items:stretch;flex-direction:column-reverse}}