:root{color-scheme:dark;--bg:#0B1320;--surface:#142135;--raised:#1C2C43;--line:#334761;--control:#6F8299;--text:#F4F7FB;--muted:#B3C1D2;--accent:#B9EF67;--ink:#122008;--error:#FFB4BC;--focus:#9EC9FF;--warning:#FFD28B;--gutter:16px;--view-h:100dvh;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:16px;line-height:1.5;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:4px}button,input,select,textarea{font:inherit}button,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;border-radius:12px;border:1px solid var(--control);padding:12px 16px;background:transparent;color:var(--text);font-weight:600;text-decoration:none;cursor:pointer;transition:background .12s}button:hover,.button:hover{background:var(--raised)}button.primary,.button.primary{background:var(--accent);color:var(--ink);border-color:var(--accent)}button.primary:hover,.button.primary:hover{background:#cffc8b}button.quiet,.button.quiet{border-color:transparent}button.danger,.button.danger{border-color:var(--error);color:var(--error)}button:disabled{opacity:.5;cursor:default}button.icon{width:44px;min-width:44px;min-height:44px;height:44px;padding:0;font-size:21px;border-color:transparent}.icon svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--focus);outline-offset:3px}h1,h2,h3,p{margin:0}h1{font-size:32px;line-height:1.125;letter-spacing:-.035em;font-weight:700}h2{font-size:22px;line-height:1.3;letter-spacing:-.02em}h3{font-size:17px}p+p{margin-top:12px}strong{font-weight:600}.muted{color:var(--muted)}.small{font-size:14px;line-height:20px}.meta{font-size:12px;line-height:16px}.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:12px;font-weight:600;color:var(--accent)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip{position:fixed;top:-100px;left:16px;background:var(--surface);padding:12px;z-index:100}.skip:focus{top:16px}.header{height:calc(56px + env(safe-area-inset-top,0px));padding:env(safe-area-inset-top,0px) max(var(--gutter),env(safe-area-inset-right,0px)) 0 max(var(--gutter),env(safe-area-inset-left,0px));display:flex;align-items:center;justify-content:space-between;gap:8px;border-bottom:1px solid rgba(51,71,97,.5)}.header-left,.header-right{display:flex;align-items:center;gap:8px;min-width:0}.header-title{font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}.wordmark{font-size:25px;font-weight:700;letter-spacing:-.06em;text-decoration:none;display:flex;align-items:center;gap:8px}.wordmark span{display:inline-flex;align-items:center;justify-content:center;font-size:11px;letter-spacing:0;border:1px solid var(--accent);color:var(--accent);border-radius:5px;height:22px;width:22px;transform:rotate(-8deg)}.page{max-width:calc(480px + 2*var(--gutter));margin:auto;padding:24px var(--gutter) calc(32px + env(safe-area-inset-bottom,0px))}.page> *+*{margin-top:24px}.page.wide{max-width:calc(880px + 2*var(--gutter))}.page.account{max-width:calc(960px + 2*var(--gutter))}.page.help{max-width:calc(720px + 2*var(--gutter))}.page.admin{max-width:calc(1200px + 2*var(--gutter))}.page.duel{max-width:calc(600px + 2*var(--gutter))}.page.room{max-width:calc(560px + 2*var(--gutter))}.home{padding-top:48px}.hero{display:grid;gap:20px}.home h1{font-size:36px;line-height:40px}.rule-copy{color:var(--muted);max-width:360px}.rule-copy strong{color:var(--text)}.panel,.stat,.choice{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:24px}.panel> *+*{margin-top:16px}.stack{display:flex;flex-direction:column;gap:12px}.stack.tight{gap:8px}.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.between{justify-content:space-between}.grow{flex:1}.full{width:100%}.actions{display:flex;flex-direction:column;gap:12px}.tag{display:inline-flex;border-radius:8px;padding:4px 8px;font-size:12px;line-height:16px;border:1px solid var(--line);background:var(--raised);color:var(--muted);white-space:nowrap}.tag.accent{color:var(--accent)}.daily-top{display:flex;justify-content:space-between;gap:12px}.daily-top h2{font-size:20px}.daily-bottom{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--muted);padding-top:16px;border-top:1px solid var(--line)}.daily-bottom strong{color:var(--text)}.footer{max-width:960px;margin:0 auto;padding:16px var(--gutter) 24px;display:flex;justify-content:center;flex-wrap:wrap;gap:4px 12px;color:var(--muted);font-size:13px}.footer a{padding:10px 4px;min-height:44px;display:inline-flex;align-items:center}.notice{border-left:3px solid var(--warning);background:var(--surface);padding:12px 16px;border-radius:0 8px 8px 0;font-size:14px}.error{color:var(--error)}.success{color:var(--accent)}.divider{border:0;border-top:1px solid var(--line);margin:24px 0}.choice{display:flex;flex-direction:column;gap:12px;text-align:left;color:var(--text);width:100%;min-height:120px}.choice h2{display:flex;align-items:center;justify-content:space-between}.choice:hover{border-color:var(--control)}.choice.primary-choice{border-color:var(--accent)}.field{display:flex;flex-direction:column;gap:8px}label{font-weight:600;font-size:14px}input,textarea,select{width:100%;min-height:48px;border:1px solid var(--control);background:var(--bg);color:var(--text);border-radius:10px;padding:12px}textarea{min-height:120px;resize:vertical}input[type=checkbox]{width:22px;min-height:22px;accent-color:var(--accent)}.field small{font-size:13px;color:var(--muted)}.field-error{font-size:14px;color:var(--error)}.google{background:#fff;color:#1f1f1f;border-color:#747775;min-height:44px;font-family:Arial,sans-serif;font-weight:500}.google:hover{background:#e8eef7}.google img{width:177px;height:40px;object-fit:contain}.google.asset{padding:0;background:white}.settings-row{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0;border-bottom:1px solid var(--line)}.settings-row select{width:auto;max-width:160px}.spinner{display:inline-block;width:24px;height:24px;border:2px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}.preparing{text-align:center;padding-top:64px}.preparing .spinner{margin-bottom:24px}.queue-time{font-size:64px;line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.04em}.seat{border:1px solid var(--line);padding:16px;border-radius:12px;display:flex;justify-content:space-between;gap:12px;align-items:center}.seat.empty{border-style:dashed;color:var(--muted)}.invite{font-size:14px;font-family:ui-monospace,monospace;overflow-wrap:anywhere}.score{font-size:64px;line-height:68px;letter-spacing:-.05em;font-weight:700;font-variant-numeric:tabular-nums}.result-intro{display:flex;flex-direction:column;gap:16px}.result-score-label{display:block;color:var(--muted);font-size:14px}.result h1{font-size:32px}.stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.stat{padding:16px;min-width:0}.stat .value{display:block;font-size:28px;font-weight:600;font-variant-numeric:tabular-nums}.stat .label{color:var(--muted);font-size:13px}.tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px}.tabs button[aria-selected=true]{border-color:var(--accent);color:var(--accent);background:var(--surface)}.board-period{display:flex;align-items:center;justify-content:space-between;gap:8px}.board-period strong{text-align:center;font-size:14px}.board{width:100%;border-collapse:collapse;table-layout:fixed}.board col.rank{width:48px}.board col.value{width:80px}.board th{text-align:left;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600;height:40px}.board th:last-child,.board td:last-child{text-align:right}.board td{height:52px;border-top:1px solid var(--line);font-variant-numeric:tabular-nums}.board td button{border:0;min-height:48px;width:100%;display:block;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:8px 12px 8px 0;font-weight:400}.board tr.own{color:var(--accent);background:rgba(185,239,103,.05)}.own-position{padding:16px;border:1px solid var(--accent);border-radius:12px;display:flex;gap:12px;justify-content:space-between}.history-item{display:flex;gap:12px;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--line)}.history-item a{min-height:44px;display:flex;flex-direction:column;justify-content:center}.break{overflow-wrap:anywhere}.code{font-family:ui-monospace,monospace;font-size:12px;white-space:pre-wrap;overflow-wrap:anywhere;background:var(--bg);padding:12px;border:1px solid var(--line);border-radius:8px;max-height:420px;overflow:auto}.help h2{margin-top:32px}.help ul,.help ol{padding-left:24px}.help li+li{margin-top:8px}details{border-bottom:1px solid var(--line);padding:16px 0}summary{cursor:pointer;font-weight:600;min-height:44px;display:flex;align-items:center}details p{margin:8px 0 16px}.teach-card{width:min(210px,60vw);height:auto;display:block;margin:24px auto}.teach-options{display:grid;grid-template-columns:1fr 1fr;gap:12px}dialog{background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:16px;padding:24px;width:calc(100% - 32px);max-width:440px;max-height:calc(100dvh - 32px);overflow:auto}dialog::backdrop{background:rgba(3,9,17,.78)}.dialog-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:16px}dialog .body> *+*{margin-top:16px}.dialog-actions{display:flex;flex-direction:column;gap:12px;margin-top:24px}.reveal{animation:reveal .16s ease-out}.game-body{overflow:hidden;overscroll-behavior:none}.game-shell{height:var(--view-h);height:100dvh;padding:env(safe-area-inset-top,0px) env(safe-area-inset-right,0px) env(safe-area-inset-bottom,0px) env(safe-area-inset-left,0px);display:grid;grid-template-rows:56px 1fr;overflow:hidden}.game-toolbar{display:flex;align-items:center;justify-content:space-between;padding:0 16px;gap:8px;border-bottom:1px solid var(--line);z-index:2;min-width:0}.game-mode{font-size:14px;color:var(--muted);white-space:nowrap}.game-exit{display:flex;gap:4px;align-items:center;min-width:0}.game-exit button{min-height:44px;padding:8px 12px}.exit-note{font-size:12px;color:var(--warning)}.play-area{position:relative;touch-action:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;outline:none;cursor:pointer;min-height:0}.live-score{height:68px;display:flex;align-items:center;justify-content:center;font-size:40px;line-height:44px;font-weight:600;font-variant-numeric:tabular-nums;pointer-events:none}.card-stage{position:absolute;inset:68px 0 0;display:flex;align-items:center;justify-content:center;pointer-events:none}.live-card{display:block;width:var(--card-w);height:var(--card-h);max-width:100%;object-fit:contain;filter:drop-shadow(0 12px 24px rgba(0,0,0,.15));border-radius:calc(var(--card-w)*.025);pointer-events:none}.live-card.arrived{outline:2px solid var(--muted);outline-offset:5px}.game-center{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:20px;text-align:center;padding:24px;pointer-events:none}.countdown-number{font-size:96px;font-weight:600;line-height:1}.game-center p{max-width:380px}.game-center .spinner{width:32px;height:32px}.game-status{font-size:24px;font-weight:600}.hidden{display:none!important}.game-shell.compact{grid-template-rows:48px 1fr}.compact .live-score{position:absolute;left:16px;top:0;bottom:0;width:var(--rail);height:auto;justify-content:center;font-size:40px;line-height:44px}.compact .card-stage{inset:0}.compact .game-toolbar{padding:0 16px}.game-shell .play-area:focus-visible{outline:none}.game-shell .play-area:focus-visible::after{content:'';position:absolute;inset:4px;border:2px solid var(--focus);pointer-events:none;border-radius:4px}.account-top{display:flex;justify-content:space-between;align-items:start;gap:16px}.username{overflow-wrap:anywhere}.admin-grid{display:grid;grid-template-columns:1fr;gap:16px}.op-nav{display:flex;flex-wrap:wrap;gap:8px}.op-nav a{min-height:44px;padding:10px 12px;border:1px solid var(--line);border-radius:8px}.inline-error{color:var(--error);margin-top:12px}.load-more{margin-top:16px;width:100%}.empty{padding:40px 16px;text-align:center;color:var(--muted)}.pair-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.pair-grid span{padding:12px;border:1px solid var(--line);border-radius:8px;text-align:center;font-variant-numeric:tabular-nums}
@keyframes spin{to{transform:rotate(360deg)}}@keyframes reveal{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:600px){:root{--gutter:24px}h1{font-size:40px;line-height:44px}.home{padding-top:64px}.home h1{font-size:48px;line-height:52px}.score{font-size:80px;line-height:84px}.tabs{grid-template-columns:repeat(4,1fr)}.stat-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.admin-grid{grid-template-columns:1fr 1fr}.live-score{font-size:48px;line-height:52px}}
@media(min-width:1024px){:root{--gutter:32px}.header{padding-left:32px;padding-right:32px}.home{padding-top:72px}}
@media(max-width:359px){.panel,.stat,.choice{padding:12px}.home{padding-top:32px}.exit-note{max-width:70px;line-height:14px}.game-exit button{padding:8px}.game-mode{font-size:12px}.header-title{max-width:140px}}
@media(max-width:599px) and (orientation:portrait){dialog{position:fixed;inset:auto 0 0;margin:0;width:100%;max-width:none;max-height:85dvh;border-radius:20px 20px 0 0;padding-bottom:calc(24px + env(safe-area-inset-bottom,0px))}}
@media(orientation:landscape) and (max-height:500px){:root{--gutter:16px}.header{height:calc(48px + env(safe-area-inset-top,0px))}.home{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:992px;padding-top:20px}.home>*+*{margin-top:0}.home h1{font-size:28px;line-height:32px}.home .hero{gap:12px}.home .home-actions{display:flex;flex-direction:column;gap:12px}.home .home-actions>*+*{margin-top:0}.home .panel{padding:16px}.home .daily-bottom{padding-top:8px}.result{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:960px}.result>*+*{margin-top:0}.result .score{font-size:64px;line-height:68px}.preparing{padding-top:20px}.preparing .spinner{margin-bottom:8px}.page.duel{max-width:960px}.choices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.choice{padding:16px}.choice h2{font-size:19px}.choice .small{font-size:13px;line-height:18px}.exit-note{max-width:none}.game-center .countdown-number{font-size:72px}.game-center{gap:12px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}:root[data-motion=reduce] *{animation:none!important;transition:none!important}