:root{--bg:#0b1420;--surface:#122132;--surface2:#192a3d;--surface3:#22364a;--border:#2f4659;--text:#eef4f8;--muted:#a2b4c6;--low:#72899f;--mint:#75dec4;--mint-deep:#112f31;--red:#ff8e9f;--red-bg:#39232e;--white:#fff;font-family:'Zen Kaku Gothic New','Hiragino Kaku Gothic ProN','Yu Gothic',sans-serif;color:var(--text);background:var(--bg);font-synthesis:none;color-scheme:dark}*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;background:radial-gradient(ellipse 85% 420px at 50% 0%,#1a2d3d 0%,transparent 80%),var(--bg)}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.44}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--mint);outline-offset:3px}button,input,select{-webkit-tap-highlight-color:transparent}.layout{width:min(100% - 40px,840px);margin:auto}.site-head{display:flex;justify-content:space-between;align-items:center;padding:30px 0 34px;border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;gap:13px}.brand-symbol{width:37px;height:37px;border:1.5px solid var(--mint);border-radius:11px;position:relative;display:block}.symbol-track{position:absolute;left:8px;right:8px;top:17px;border-top:2px solid var(--mint)}.symbol-track:after{content:'';position:absolute;width:7px;height:7px;border-top:2px solid var(--mint);border-right:2px solid var(--mint);transform:rotate(45deg);right:-1px;top:-5px}.symbol-dot{position:absolute;width:7px;height:7px;left:7px;top:14px;background:var(--mint);border-radius:50%}.brand-type{display:flex;flex-direction:column;gap:1px}.brand-type strong{font-size:25px;line-height:1.08;letter-spacing:.06em;font-weight:900}.brand-type small,.header-tag,.kicker,.mode-number,.stat-label,.question-caption,.numeric,.summary-hero>span,.hero-meta,.life-row,.footer-bottom{font-family:'DM Sans','Zen Kaku Gothic New',sans-serif}.brand-type small{color:var(--mint);font-size:9px;letter-spacing:.12em;font-weight:800}.header-tag{letter-spacing:.12em;color:var(--low);font-size:10px;font-weight:700}.view{padding:32px 0 50px}.hero{padding:23px 0 30px}.kicker{color:var(--mint);font-size:11px;font-weight:800;letter-spacing:.16em}.small-dot{display:inline-block;width:6px;height:6px;background:var(--mint);border-radius:50%;vertical-align:middle;margin-right:8px}.hero h1{font-size:clamp(39px,7vw,64px);line-height:1.22;letter-spacing:-.045em;margin:19px 0 14px;font-weight:900}.hero h1 span{color:var(--mint)}.hero>p:not(.kicker){line-height:1.95;font-weight:500;color:var(--muted);font-size:14px}.hero-meta{display:flex;gap:17px;margin-top:30px;flex-wrap:wrap;color:var(--low);font-size:10px;letter-spacing:.12em;font-weight:700}.hero-meta>span:not(:last-child){border-right:1px solid #344b5b;padding-right:17px}.hero-meta b{color:var(--text);font-weight:800}.section-divider{display:flex;align-items:center;gap:12px;margin:23px 0 17px;border-bottom:1px solid var(--border);padding-bottom:11px}.section-divider>span{font:800 12px 'DM Sans',sans-serif;color:var(--mint)}.section-divider h2{font-size:16px;letter-spacing:.045em;margin:0;font-weight:800}.form-block{margin-bottom:28px}.field-label{display:block;color:var(--text);font-size:13px;font-weight:700;letter-spacing:.015em}.field-label>span{color:var(--low);font-size:11px;font-weight:500;margin-left:8px}input:not([type=radio]),select{width:100%;min-height:52px;padding:12px 16px;margin-top:9px;border-radius:10px;background:#122334;border:1px solid #3a5267;color:var(--text);font-size:15px;transition:border-color .15s,background .15s}input::placeholder{color:#7e94aa}input:focus,select:focus{border-color:var(--mint);background:#162b3c}select{cursor:pointer}.mode-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:11px;margin-bottom:30px}.mode-option{cursor:pointer;min-width:0;position:relative;display:block}.mode-option input{position:absolute;opacity:0;pointer-events:none}.mode-content{display:flex;flex-direction:column;gap:12px;background:#142436;border:1px solid #31495c;border-radius:13px;padding:18px 15px;min-height:164px;transition:background .15s,border-color .15s,transform .15s}.mode-option:hover .mode-content{border-color:#6da897;transform:translateY(-2px)}.mode-option:has(input:focus-visible) .mode-content{outline:3px solid var(--mint);outline-offset:3px}.mode-option input:checked+.mode-content{background:#183b3c;border-color:var(--mint);box-shadow:inset 0 3px 0 var(--mint)}.mode-head{display:flex;align-items:center;justify-content:space-between;gap:6px}.mode-number{color:var(--mint);font-size:10px;font-weight:800;letter-spacing:.08em}.mode-mark{color:#668396}.mode-option input:checked+.mode-content .mode-mark{color:var(--mint)}.mode-content strong{font-size:16px;font-weight:800}.mode-content small{font-size:12px;line-height:1.65;color:var(--muted);font-weight:500}.settings{display:grid;grid-template-columns:1fr 1fr;gap:12px}.settings label:first-child:last-of-type{grid-column:1/-1}.note{color:var(--low);font-size:11px;line-height:1.7;margin:12px 0 0}.board-head{display:flex;justify-content:space-between;gap:12px;align-items:end;margin-top:36px;margin-bottom:13px}.board-head h2{font-size:21px;margin:5px 0 0}.board-head>span{font-size:11px;color:var(--muted);text-align:right}.leaderboard-rows{background:#111f2f;border:1px solid var(--border);border-radius:12px;overflow:hidden}.leader-row{display:grid;grid-template-columns:35px minmax(0,1fr) auto;align-items:center;gap:12px;padding:13px 16px;border-top:1px solid #293d50}.leader-row:first-child{border-top:0}.leader-row .ordinal{font:800 13px 'DM Sans',sans-serif;color:var(--low)}.leader-row:first-child .ordinal{color:#e8ca87}.leader-row .player{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:700;font-size:13px}.leader-row strong{font:800 14px 'DM Sans','Zen Kaku Gothic New',sans-serif;color:var(--text)}.empty-board{padding:23px 16px;color:var(--muted);text-align:center;font-size:13px}.action-btn,.outline-btn{min-height:54px;width:100%;border-radius:10px;font-weight:800;letter-spacing:.03em}.action-btn{border:0;background:var(--mint);color:#102c30;display:flex;justify-content:space-between;align-items:center;padding:13px 19px;font-size:15px;box-shadow:0 6px 25px #06201925;transition:background .15s,transform .15s}.action-btn:not(:disabled):hover{background:#9bf1d9;transform:translateY(-1px)}#start{margin-top:24px}.action-btn span:last-child{font-family:'DM Sans',sans-serif;font-size:23px;font-weight:500;line-height:1}.message-error{color:#ffabb5;font-weight:700;font-size:13px}.game-utility{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:0 0 25px}.player-display{font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:40%}.game-stats{display:flex;justify-content:space-between;gap:12px;align-items:end}.game-stats>div{display:flex;flex-direction:column;gap:6px}.game-stats>div:last-child{text-align:right}.stat-label{font-size:10px;letter-spacing:.13em;color:var(--low);font-weight:800}.game-stats strong{font:800 26px 'DM Sans','Zen Kaku Gothic New',sans-serif;letter-spacing:-.04em;color:var(--text)}.game-stats>div:nth-child(2) strong{color:var(--mint)}.question-track{display:flex;gap:4px;margin:18px 0 0;height:4px}.question-track>span{background:#293d50;border-radius:8px;flex:1}.question-track>span.good{background:var(--mint)}.question-track>span.bad{background:var(--red)}.question-track>span.current{background:#cfdee8}.time-track{height:5px;border-radius:10px;background:#2d4253;overflow:hidden;margin-top:15px}.time-track>div{background:var(--mint);height:100%;width:100%;transition:width .1s linear}.time-track>div.danger{background:var(--red)}.life-row{display:flex;justify-content:space-between;margin-top:16px;align-items:center;color:var(--muted);font-size:11px;font-weight:800;letter-spacing:.1em}.life-row #lives{font-size:20px;letter-spacing:.12em;color:var(--red)}.question{margin:27px 0 28px;padding:53px 10px 43px;border-top:1px solid var(--border);border-bottom:1px solid var(--border);text-align:center;background:radial-gradient(ellipse 65% 60% at 50% 50%,#192c3b80,transparent)}.question-overline{color:var(--muted);font-size:13px;font-weight:700;letter-spacing:.065em}.short-track{display:inline-block;width:16px;height:2px;background:var(--mint);vertical-align:middle;margin-right:6px}.question h2{margin:22px 0 10px;color:var(--white);font-size:clamp(37px,7.3vw,57px);font-weight:800;line-height:1.24;letter-spacing:.015em;overflow-wrap:anywhere}.question h2.long{font-size:clamp(29px,5.7vw,44px)}.question h2.very-long{font-size:clamp(23px,4.6vw,35px)}.question #pref{color:var(--muted);font-weight:600;font-size:14px;margin:0 0 28px}.question-caption{color:var(--mint);font-size:10px;font-weight:800;letter-spacing:.14em}.answer-area{position:relative}.answer-input-wrap{position:relative}.answer-input-wrap input{padding-right:47px}.search-symbol{position:absolute;right:17px;top:calc(50% + 4px);transform:translateY(-50%);color:var(--low);font-size:28px;pointer-events:none}.candidates{display:grid;gap:5px;margin-top:8px;max-height:300px;overflow:auto;overscroll-behavior:contain}.candidate{background:#18293a;border:1px solid #354d60;border-radius:9px;padding:10px 14px;text-align:left;color:var(--text);min-height:53px}.candidate:hover,.candidate:focus-visible{background:#1b3c3d;border-color:var(--mint)}.candidate-name{display:block;font-weight:800;font-size:15px}.candidate-desc{display:block;color:var(--muted);font-size:11px;line-height:1.4;margin-top:3px}.selection{min-height:23px;font-size:12px;color:var(--muted);margin:11px 0}.selection.chosen{color:var(--mint);font-weight:700}.result{margin-top:18px}.result[hidden]{display:none!important}.result.ok,.result.ng{border-radius:12px;padding:17px 20px;border:1px solid}.result.ok{border-color:#357c70;background:#14332f}.result.ng{border-color:#85525f;background:var(--red-bg)}.result-heading{display:flex;align-items:center;gap:10px}.result-heading .result-icon{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;font:900 24px 'DM Sans',sans-serif;flex:none}.result.ok .result-icon{background:var(--mint);color:#102d30}.result.ng .result-icon{background:var(--red);color:#321c27}.result-heading strong{font-size:22px}.result.ok strong{color:#89f3d9}.result.ng strong{color:#ffadba}.result-details{font-size:12px;color:#e2edf3;line-height:1.8;margin:10px 0 0}.result-details b{display:block;font-size:11px;color:var(--muted);margin-bottom:3px}.game-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:16px}.text-btn{background:transparent;color:var(--muted);border:0;font-size:12px;font-weight:700;padding:9px 2px;min-height:36px}.text-btn:hover{color:var(--text);text-decoration:underline}.summary-view>.kicker{display:block;margin-top:7px}.summary-view>h2{font-size:clamp(25px,5vw,36px);margin:9px 0 23px;letter-spacing:-.01em}.summary-hero{padding:28px 12px;text-align:center;background:#16283a;border:1px solid var(--border);border-radius:13px}.summary-hero>span{display:block;font-size:11px;color:var(--mint);font-weight:800;letter-spacing:.14em}.summary-hero strong{display:block;margin:13px auto;font:800 clamp(53px,11vw,80px) 'DM Sans','Zen Kaku Gothic New',sans-serif;line-height:1;color:var(--text);letter-spacing:-.04em}.summary-hero p{color:var(--muted);font-size:13px;line-height:1.8;margin-bottom:0}.summary-rank{color:var(--mint);font-size:15px;font-weight:800;text-align:center;margin:18px 0}.summary-actions{display:grid;grid-template-columns:1fr 170px;gap:10px}.outline-btn{background:transparent;color:var(--text);border:1px solid #507084;font-size:13px}.outline-btn:hover{background:#1e3345}.history-head{display:flex;align-items:baseline;justify-content:space-between;margin:33px 0 10px}.history-head h3{font-size:16px;margin:0}.history-head span{color:var(--muted);font:600 11px 'DM Sans',sans-serif}.history{max-height:390px;overflow:auto;border-top:1px solid var(--border)}.history-row{display:grid;grid-template-columns:22px 1fr;gap:12px;align-items:center;border-bottom:1px solid #293d50;padding:12px 3px;font-size:13px}.history-ok{color:var(--mint);font-size:19px;font-weight:900}.history-ng{color:var(--red);font-size:19px;font-weight:900}.history-row .answer-detail{color:var(--muted);font-size:11px;margin-top:3px}.back-btn{margin-top:15px}footer{border-top:1px solid var(--border);padding:26px 0 30px;color:var(--muted);font-size:11px;line-height:1.8}footer>div:first-child{display:flex;align-items:baseline;gap:12px}footer strong{color:var(--text);font-size:18px;font-weight:800}footer div:first-child span{font:800 10px 'DM Sans',sans-serif;letter-spacing:.12em;color:var(--mint)}.footer-bottom{display:flex;justify-content:space-between;gap:10px;margin-top:18px;color:var(--low);font-size:10px;letter-spacing:.06em}[hidden]{display:none!important}@media(max-width:650px){.layout{width:min(100% - 30px,840px)}.site-head{padding:20px 0 22px}.header-tag{display:none}.view{padding-top:20px}.hero{padding-top:15px}.mode-grid{grid-template-columns:1fr}.mode-content{min-height:0;gap:6px;padding:15px}.mode-head{margin-bottom:3px}.settings{grid-template-columns:1fr}.question{padding:43px 6px 37px;margin-top:20px}.summary-actions{grid-template-columns:1fr}.game-stats strong{font-size:23px}.leader-row{gap:8px}}@media(max-width:340px){.game-stats strong{font-size:20px}.brand-type strong{font-size:22px}.question h2{font-size:34px}.question h2.long{font-size:27px}.question h2.very-long{font-size:22px}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;scroll-behavior:auto!important}}

/* v2.2 — quieter setup, decisive CTA and faster feedback */
:root{--bg:#09121c;--surface:#132233;--mint:#85efd0;--border:#273a4b}
body{background:radial-gradient(ellipse 78% 380px at 50% -110px,#1d3546,transparent),var(--bg)}
.site-head{padding:25px 0 25px}
.header-tag{color:#8da4b5;font-size:11px;letter-spacing:.07em}
.header-tag b{color:#dce9ed;font-size:13px}
.setup-view{padding-top:16px}
.hero{padding:13px 0 23px;display:flex;align-items:baseline;justify-content:space-between;gap:18px}
.hero h1{font-size:clamp(27px,4.2vw,37px);font-weight:900;letter-spacing:-.038em;margin:0;line-height:1.3}
.hero-accent{color:var(--mint)}
.hero-count{font-size:12px;color:var(--low);white-space:nowrap;font-weight:600}
.hero-count b{font:800 14px 'DM Sans',sans-serif;color:var(--text)}
.setup-section-title{margin:19px 0 11px;font-size:13px;font-weight:800;letter-spacing:.035em;color:#a9bfce}
.form-block{margin-bottom:17px}
.field-label{font-size:12px;color:#bdcfdd}
input:not([type=radio]),select{margin-top:7px;min-height:48px;border-radius:9px;background:#152538}
.mode-grid{gap:10px;margin-bottom:12px}
.mode-content{padding:14px 14px 13px;min-height:118px;gap:6px;background:#111f2e;border-radius:11px;position:relative}
.mode-content strong{font-size:16px;line-height:1.3;letter-spacing:-.02em}
.mode-content small{font-size:11px;line-height:1.5;color:#8ba2b5}
.mode-head{margin-bottom:8px}
.mode-option input:checked+.mode-content{background:#153638;border-color:#85efd0;box-shadow:inset 0 2px 0 var(--mint),0 0 0 1px #143f3b}
.mode-option input:checked+.mode-content strong{color:#f5fffd}
.mode-option input:checked+.mode-content small{color:#aad9cd}
.mode-mark{font-size:20px;font-weight:800;line-height:1}
.settings{gap:14px}
.scope-help{margin-top:10px;font-size:11px;color:var(--low)}
.scope-help summary{cursor:pointer;width:max-content}
.scope-help p{margin:6px 0 0;line-height:1.6}
.start-block{margin-top:19px}
.start-btn{min-height:70px;padding:13px 23px;font-size:20px;font-weight:900;letter-spacing:.02em;border:1px solid #b4ffe9;border-radius:12px;background:linear-gradient(105deg,#91f5d8,#6bdfbd);box-shadow:0 10px 34px #173d3a80,0 1px 0 #c6fff0 inset}
.start-btn:not(:disabled):hover{background:linear-gradient(105deg,#bbffe9,#83f0d1);box-shadow:0 10px 40px #276d5d88;transform:translateY(-2px)}
.start-arrow{display:grid;place-items:center;width:39px;height:39px;border-radius:50%;background:#0a3635;color:#a9ffe8;font-size:23px!important;font-weight:800!important}
.start-summary{display:block;color:#7d9b9f;text-align:center;margin-top:9px;font-size:11px;font-weight:600}
.leaderboard-panel{margin-top:32px;border-top:1px solid #263d4b;padding-top:5px}
.leaderboard-panel summary{cursor:pointer;list-style:none;user-select:none}
.leaderboard-panel summary::-webkit-details-marker{display:none}
.board-head{margin:0;padding:13px 2px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.board-title{display:inline-flex;align-items:center;gap:10px;font-size:14px;color:#b3cbd6;font-weight:800}
.trophy-icon{font-size:19px;color:#a7b9c4}
.board-chevron{color:var(--mint);font-size:24px;transition:transform .16s}
.leaderboard-panel[open] .board-chevron{transform:rotate(180deg)}
.board-inner{padding:0 0 10px}
#leaderboardScope{display:block;margin:0 0 10px;color:var(--muted);font-size:11px}
.game-view{padding-top:22px}
.game-utility{margin-bottom:17px}
.question{margin:19px 0 19px;padding:37px 10px 30px;background:radial-gradient(ellipse 66% 76% at 50% 50%,#1d364580,transparent);transition:border-color .15s,background .15s}
.question-overline{font-size:12px;color:#9eafbe}
.question h2{margin:14px 0 6px}
.question #pref{margin:0;color:#99b4c5}
.question.answered-ok{border-bottom-color:#4ca993;background:radial-gradient(ellipse 60% 75% at 50% 60%,#1c504a77,transparent)}
.question.answered-ng{border-bottom-color:#c36f79;background:radial-gradient(ellipse 60% 75% at 50% 60%,#56313b66,transparent)}
.answer-area{position:relative}
.search-combo{position:relative}
.candidates{position:absolute;top:calc(100% + 5px);left:0;right:0;z-index:20;max-height:260px;overflow:auto;gap:3px;margin:0;background:#102030;border-radius:11px;box-shadow:0 14px 50px #0009;padding:4px;border:1px solid #425e6e}
.candidates:empty{display:none}
.candidate{min-height:51px;border-radius:7px;background:#17293b}
.candidate:focus-visible{outline-offset:-2px}
.selection{margin:7px 0 0;min-height:0}
.result{margin:0 0 14px}
.result.ok,.result.ng{padding:15px 18px}
.result-heading strong{font-size:25px;font-weight:900}
.result-details{margin-top:6px;line-height:1.5}
.result-details b{margin:0 0 3px}
.next-btn{min-height:50px;background:transparent;color:#b5f9e4;border:1px solid #456e69;box-shadow:none}
.next-btn:not(:disabled):hover{background:#224239;transform:none}
.game-bottom{margin-top:12px}
.game-bottom .text-btn{color:#8da4b5}
@media(max-width:650px){
 .site-head{padding:17px 0}
 .hero{padding:12px 0 15px}
 .hero h1{font-size:27px}
 .setup-view{padding-top:12px}
 .form-block{margin-bottom:10px}
 .setup-section-title{margin:14px 0 9px}
 .mode-grid{gap:7px}
 .mode-content{min-height:0;padding:11px 15px 12px;gap:2px;display:grid;grid-template-columns:1fr auto;grid-template-areas:'head head' 'title detail';align-items:baseline}
 .mode-head{grid-area:head;margin-bottom:3px}
 .mode-content strong{grid-area:title;font-size:15px}
 .mode-content small{grid-area:detail;text-align:right;font-size:11px}
 .mode-number{font-size:9px}
 .mode-mark{font-size:15px}
 .start-block{margin-top:17px}
 .start-btn{min-height:65px;font-size:19px}
 .leaderboard-panel{margin-top:22px}
 .question{padding:30px 6px 26px;margin:16px 0}
 .game-utility{margin-bottom:15px}
 .game-stats strong{font-size:24px}
 .candidates{max-height:240px}
 .result-heading strong{font-size:22px}
}
@media(max-width:390px){.mode-content{grid-template-columns:1fr}.mode-content strong{grid-area:auto}.mode-content small{grid-area:auto;text-align:left}.hero-count{font-size:11px}}

footer{padding:18px 0 28px}footer p{margin:0;color:#71899e;font-size:10px}

/* v2.3 — editorial light style: flat planes, disciplined type, no gratuitous decoration */
:root{--bg:#f6f6f3;--surface:#fff;--surface2:#f2f4f3;--surface3:#e7eceb;--border:#d4d9d9;--text:#192a37;--muted:#576674;--low:#697b87;--mint:#267f6b;--mint-deep:#e0f1e9;--red:#ad3544;--red-bg:#fbecee;--white:#192a37;color-scheme:light;background:var(--bg);color:var(--text)}
body{background:var(--bg)}.layout{width:min(100% - 40px,780px)}
.site-head{padding:24px 0 19px;border-bottom:2px solid #24394a}.brand{gap:10px}.brand-symbol{border-radius:2px;border-color:#213b4f;width:31px;height:31px}.symbol-track,.symbol-track:after{border-color:#213b4f}.symbol-dot{background:#267f6b}.brand-type strong{color:#1a2d3c;font-size:29px;letter-spacing:.035em}.brand-type small{color:#48606c;letter-spacing:.13em;font-size:9px}
.view{padding:24px 0 38px}.hero{padding:0 0 13px;margin-bottom:11px;border-bottom:1px solid #d6dcdd;align-items:center}.hero h1{font:800 15px 'DM Sans',sans-serif;letter-spacing:.14em;margin:0;color:#1d3446}.hero-count,.hero-count b{color:#62727e;font-size:11px}.setup-section-title{font:800 11px 'DM Sans',sans-serif;letter-spacing:.14em;color:#627582;margin:23px 0 11px}.field-label{font-size:12px;color:#344b58;font-weight:800}
input:not([type=radio]),select{background:#fff;border:1px solid #bfc9cc;border-radius:3px;color:#182b3a;min-height:48px;margin-top:7px}input::placeholder{color:#82909b}input:focus,select:focus{background:#fff;border-color:#256d60}button:focus-visible,input:focus-visible,select:focus-visible{outline-color:#27836e}.form-block{margin-bottom:15px}
.mode-grid{gap:10px;margin-bottom:17px}.mode-content{background:#fff;border:1px solid #cbd3d6;border-radius:3px;min-height:117px;padding:14px;gap:6px;box-shadow:none}.mode-option:hover .mode-content{border-color:#386b6c;transform:none}.mode-option input:checked+.mode-content{background:#e8f1ed;border:2px solid #277f69;box-shadow:none;padding:13px}.mode-content strong{color:#1b3040;font-size:16px}.mode-content small{color:#586e7a}.mode-number{color:#506a75}.mode-mark{color:#546f78}.mode-option input:checked+.mode-content .mode-mark{color:#267f6b}.mode-option input:checked+.mode-content strong{color:#163b36}.mode-option input:checked+.mode-content small{color:#466b62}
.scope-help,.scope-help p{color:#637584}.start-block{margin-top:23px}.start-btn{background:#203f58;color:#fff;box-shadow:none;border:0;border-radius:3px;min-height:66px;font:800 19px 'DM Sans',sans-serif;letter-spacing:.12em}.start-btn:not(:disabled):hover{background:#2f5977;box-shadow:none;transform:none}.start-arrow{border-radius:2px;background:#365d78;color:#fff}.start-summary{color:#607582}.leaderboard-panel{border-top:1px solid #d2d9da}.board-title{color:#273f51}.trophy-icon{color:#647b88}.board-chevron{color:#287d6d}.leaderboard-rows{background:#fff;border-color:#cdd5d8;border-radius:3px}.leader-row{border-color:#e2e6e8}.leader-row strong{color:#182c3a}.leader-row:first-child .ordinal{color:#996b24}.empty-board{color:#657987}.note{color:#667782}.message-error{color:#b72e44}
.game-utility{margin-bottom:22px}.kicker{color:#287667}.player-display{color:#526976}.stat-label{color:#637784}.game-stats strong{color:#1b3040}.game-stats>div:nth-child(2) strong{color:#237d67}.question-track>span{background:#d9e0e2}.question-track>span.good{background:#277f68}.question-track>span.bad{background:#ba5364}.question-track>span.current{background:#6c8291}.time-track{background:#d9e0df}.time-track>div{background:#277f68}.time-track>div.danger{background:#b63d4e}.life-row{color:#60737f}.life-row #lives{color:#bd3d51}
.question{background:#fff;border:1px solid #d0d8da;border-top:3px solid #203e57;border-bottom:1px solid #d0d8da;margin:22px 0;padding:42px 14px 39px;transition:none}.question-overline{color:#546b76;font-size:11px;letter-spacing:.14em}.question h2{color:#182b3a;font-size:clamp(37px,6vw,53px);letter-spacing:.01em;font-weight:800;margin:20px 0 8px}.question h2.long{font-size:clamp(29px,5.5vw,43px)}.question h2.very-long{font-size:clamp(22px,4.3vw,34px)}.question #pref{color:#506b77;font-size:13px}.question.answered-ok{background:#f2faf6;border-top-color:#2b896c;border-bottom-color:#c6ddd3}.question.answered-ng{background:#fff5f6;border-top-color:#b54152;border-bottom-color:#ebc9d0}
.search-combo{position:relative}.answer-input-wrap input{background:#fff}.search-symbol{color:#667d89}.candidates{background:#fff;border:1px solid #cbd3d5;border-radius:3px;box-shadow:0 8px 20px #152d3c18}.candidate{background:#fff;border:0;border-bottom:1px solid #e2e7e8;border-radius:0;color:#1b3040}.candidate:hover,.candidate:focus-visible{background:#e8f3ee;border-color:#d7e2dd}.candidate-name{color:#1b3040}.candidate-desc{color:#526b77}.selection{color:#536c77}.selection.chosen{color:#267a65}
.result.ok,.result.ng{border-radius:3px;box-shadow:none}.result.ok{background:#e4f3eb;border-color:#9cc9b7}.result.ng{background:#fbe9ed;border-color:#e3a5b0}.result.ok .result-icon{background:#247a62;color:#fff}.result.ng .result-icon{background:#b84053;color:#fff}.result.ok strong{color:#196c53}.result.ng strong{color:#a42e43}.result-details{color:#334b58}.result-details b{color:#617782}
.next-btn{background:#257c66;color:#fff;border:0;border-radius:3px;min-height:58px;box-shadow:none;font:800 17px 'DM Sans',sans-serif;letter-spacing:.08em}.next-btn:not(:disabled):hover{background:#1b6654}.game-bottom .text-btn,.text-btn{color:#526b78}.text-btn:hover{color:#1a3040}.summary-view>h2{color:#1b3040}.summary-hero{background:#fff;border-color:#ced7d9;border-radius:3px}.summary-hero>span{color:#287865}.summary-hero strong{color:#172b39}.summary-hero p{color:#566b77}.summary-rank{color:#287865}.outline-btn{color:#20394b;border-color:#a1b1b8;border-radius:3px}.outline-btn:hover{background:#e7eeee}.summary-actions .action-btn{background:#203f58;color:#fff;border-radius:3px;box-shadow:none}.history{border-color:#d1dadd}.history-row{border-color:#dce3e5}.history-ok{color:#238369}.history-ng{color:#b83c51}.history-row .answer-detail{color:#617582}
footer{border-color:#d4dcde;color:#647885}footer p{color:#657681;font-size:11px}
@media(max-width:650px){.layout{width:min(100% - 28px,780px)}.site-head{padding:19px 0 16px}.view{padding-top:17px}.hero{margin-bottom:9px}.mode-grid{gap:7px}.mode-content{min-height:0;padding:12px 10px;display:flex;gap:3px}.mode-option input:checked+.mode-content{padding:11px 9px}.mode-content strong{font-size:13px}.mode-content small{font-size:10px;line-height:1.45;text-align:left}.mode-head{margin-bottom:6px}.mode-number{font-size:9px}.start-btn{min-height:63px}.question{margin:16px 0;padding:37px 8px}.game-stats strong{font-size:23px}}
@media(max-width:390px){.mode-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.mode-content{display:flex;flex-direction:column;min-height:128px}.mode-content strong{font-size:12px}.mode-content small{font-size:10px}}

/* v2.4: result page / leaderboard refinement, flat light modern */
.summary-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin:15px 0 28px;border:1px solid #d3dadd;background:#fff}
.summary-facts>div{min-width:0;padding:17px 12px;display:flex;flex-direction:column;gap:8px;border-right:1px solid #d3dadd}
.summary-facts>div:last-child{border-right:0}.summary-facts span{color:#637583;font-size:11px;font-weight:700}.summary-facts strong{font:800 clamp(18px,3.5vw,25px) 'DM Sans','Zen Kaku Gothic New',sans-serif;color:#1a3244}
.record-message{padding:14px 16px;border-left:3px solid #718799;background:#e8edf0;color:#264559;font-weight:700;font-size:14px;margin-top:12px}
.record-message.record-best{border-color:#267f6b;background:#e4f1ea;color:#216651}
.result-board{margin:30px 0 22px;border-top:2px solid #253f50;padding-top:18px}
.result-board-heading{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:13px}
.result-board-heading h3{margin:0;font:800 13px 'DM Sans',sans-serif;letter-spacing:.12em;color:#20384b}
.result-board-heading span{font-size:11px;color:#5b7180;text-align:right}
.result-board-rows{border:1px solid #d1dadd;background:#fff}
.result-board-row{display:grid;grid-template-columns:34px minmax(0,1fr) auto;gap:12px;align-items:center;padding:13px 15px;border-bottom:1px solid #e0e5e7}
.result-board-row:last-child{border-bottom:0}.result-board-row.is-player{background:#e7f3ec;border-left:3px solid #267f6b;padding-left:12px}
.result-board-row .place{color:#617784;font:800 12px 'DM Sans',sans-serif}.result-board-row:first-child .place{color:#a06e28}
.result-board-row .person{color:#1b3444;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:700}
.result-board-row strong{color:#1b3444;font:800 15px 'DM Sans','Zen Kaku Gothic New',sans-serif}
.board-footnote{font-size:11px;color:#71818a;margin-top:11px}
@media(max-width:440px){.summary-facts>div{padding:13px 9px}.result-board-heading{flex-wrap:wrap}.result-board-row{gap:8px}}

/* v2.6 — understated SNS share controls */
.share-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:12px 0 4px}.share-link{padding:12px 5px;border:1px solid #cbd3d3;border-radius:3px;background:#fff;color:#1b334b;font-weight:700;font-size:12px;min-height:44px}.share-link:hover{border-color:#267f6b;background:#edf6f1}@media(max-width:370px){.share-link{font-size:11px}}
/* v2.8 preview controls */
.version-banner{display:flex;flex-wrap:wrap;gap:8px 15px;justify-content:space-between;align-items:center;padding:12px 14px;border:1px solid #b8cbc8;background:#ecf4f1;color:#1f5f53;font-size:11px;font-weight:700}
.version-banner #dataNotice{color:#54736d;font-weight:500}
.rank-status{display:inline-flex;margin:12px 0 0;padding:8px 11px;border-left:3px solid #27856b;background:#ebf4ef;color:#246952;font-size:12px;font-weight:700}
.rank-status.unranked{background:#eef0f3;border-left-color:#778894;color:#536471}
.scope-counter{color:#697984;font-size:11px;min-height:13px;margin:8px 0 0}
.publish-area{margin:20px 0;border:1px solid #bcd5c9;background:#eff7f2;padding:18px 20px}
.publish-area h3{margin:0 0 7px;color:#1d5949;font-size:16px}
.publish-area p{font-size:12px;color:#566d64;line-height:1.75;margin:0 0 10px}
.publish-area .field-label{display:block;margin-top:12px}
.publish-area input{width:100%;max-width:300px}
.publish-controls{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:12px}
.publish-controls .outline-btn{padding:13px 16px;min-height:45px;background:white}
.publish-controls .text-btn{font-size:12px}
.report-wrap{display:flex;justify-content:flex-end;margin:-12px 0 15px}
.report-wrap .text-btn{font-size:11px;color:#697783}
[data-busy="true"] button{opacity:.65}
@media(max-width:460px){.version-banner{font-size:10px;gap:4px}.publish-area{padding:15px}.publish-controls{display:grid;gap:8px}}

/* Affiliate placements are deliberately inactive until sponsored content is supplied.
   Avoid positioning advertisements near the answer box, NEXT or START controls. */
.affiliate-slot{margin:32px 0 20px;padding:16px;border:1px solid #d0d8da;background:#fff}
.affiliate-slot[hidden]{display:none!important}
.affiliate-label{margin:0 0 12px;font-size:12px;font-weight:800;letter-spacing:.08em;color:#4f6372}
.affiliate-content{display:flex;align-items:center;justify-content:center;min-height:72px;max-width:100%;overflow-wrap:anywhere}
.affiliate-content a{color:#175e83;text-decoration:underline;text-underline-offset:3px}

/* 2026-11 Design refinement: retain the established white/navy/green identity. */
:root{--bg:#F7F6F2;--surface:#FFFFFF;--surface2:#F2F4F2;--border:#D0D8D9;--text:#203E56;--muted:#536B78;--mint:#08745F;--white:#FFFFFF;color-scheme:light}
body{background:#F7F6F2;color:#203E56}
.site-head{padding:14px 0 17px;border-bottom:2px solid #203E56}
.brand{display:inline-flex;align-items:center;max-width:100%;text-decoration:none;border-radius:4px;transition:opacity .17s,transform .17s}
.brand:hover{opacity:.83;transform:translateY(-1px)}.brand:active{transform:translateY(1px)}
.brand-logo{display:block;width:clamp(216px,39vw,335px);height:auto;object-fit:contain}
.brand:focus-visible{outline:3px solid #08745F;outline-offset:4px}
.mode-content{transition:background .18s,border-color .18s,transform .18s,box-shadow .18s}
.mode-option:hover .mode-content{transform:translateY(-2px);box-shadow:0 5px 14px #1e3b5110}
.mode-option input:checked+.mode-content{box-shadow:inset 0 2px 0 #08745F}
.action-btn:not(:disabled){transition:transform .14s,background .14s,box-shadow .14s}
.action-btn:not(:disabled):active{transform:translateY(2px) scale(.997)}
.start-btn:not(:disabled):hover{transform:translateY(-1px)}
.start-arrow{display:inline-block;transition:transform .2s}.start-btn:hover .start-arrow{transform:translateX(4px)}
.field-label select,.field-label input{border-radius:4px}
.play-help{font-size:12px;color:#526B77;line-height:1.7;margin:13px 0}
.comfort-settings{display:flex;flex-wrap:wrap;gap:8px 20px;margin:13px 0 10px}
.setting-toggle{display:inline-flex;align-items:center;gap:7px;font-size:12px;color:#465E6A;cursor:pointer}
.setting-toggle input{accent-color:#08745F;width:16px;height:16px}
.question{position:relative;overflow:hidden}
.station-reading{margin:17px 0 -10px;font-size:clamp(13px,2.7vw,17px);letter-spacing:.13em;color:#55717E;font-weight:600}
.station-reading[hidden]{display:none!important}
.question h2{margin-top:17px;font-size:clamp(42px,7.1vw,65px)}
.question h2.long{font-size:clamp(30px,5.8vw,48px)}
.question h2.very-long{font-size:clamp(23px,4.7vw,37px)}
.station-connection{display:flex;justify-content:center;align-items:center;margin:4px auto 0;max-width:140px;height:14px}
.station-connection span:first-child,.station-connection span:last-child{width:11px;height:11px;border-radius:50%;border:2px solid #08745F;background:#fff;flex:none}
.station-connection span:first-child{background:#08745F}
.station-connection i{display:block;width:80px;height:2px;background:#D5E2DE;position:relative;overflow:hidden}
.station-connection i:after{content:"";display:block;background:#08745F;width:100%;height:100%;transform:scaleX(0);transform-origin:left}
.question.answered-ok .station-connection i:after{animation:connect-stations .32s ease-out both}
.question.answered-ok .station-connection span:last-child{animation:node-light .3s .23s both}
.question.answered-ng .station-connection i:after{background:#B94151;transform:scaleX(.5)}
.question.question-enter h2{animation:station-enter .23s ease-out}
.summary-hero{border-top:3px solid #203E56}.summary-celebration{display:flex;align-items:center;justify-content:center;gap:0;margin:10px 0}
.summary-celebration span:nth-child(odd){background:#08745F;width:11px;height:11px;border-radius:100%}
.summary-celebration span:nth-child(even){height:3px;width:45px;background:#08745F;transform-origin:left;animation:connect-stations .4s both}
.summary-hero strong{font-variant-numeric:tabular-nums}
.history-panel{margin:20px 0}.history-panel .history-head{cursor:pointer;display:flex;gap:12px;align-items:center;padding:13px 0}
.history-panel .history-head h3{margin:0}.history-panel .history-head span:last-child{margin-left:auto}
.history-panel[open] .history-head span:last-child{transform:rotate(180deg)}
.history-row{display:flex;gap:12px;align-items:center}.history-row .history-main{flex:1;min-width:0;display:grid;gap:3px}
.history-row small{font-size:11px;color:#647883}.history-row strong{flex:none}
.leader-row:first-child,.result-board-row:first-child{background:#FCF9EF}
.leader-row:nth-child(2),.result-board-row:nth-child(2){background:#F6F9F8}
.candidate:active{background:#E5F1EB}
@keyframes connect-stations{to{transform:scaleX(1)}}
@keyframes node-light{0%{background:#FFF}100%{background:#08745F}}
@keyframes station-enter{0%{transform:translateY(7px);opacity:.2}100%{transform:translateY(0);opacity:1}}
@media(max-width:650px){.brand-logo{width:min(76vw,300px)}.site-head{padding:10px 0 13px}.question{padding:37px 9px}.station-reading{font-size:14px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

.summary-hero strong.score-enter{animation:score-reveal .45s ease-out both}
@keyframes score-reveal{0%{opacity:.2;transform:translateY(8px)}100%{opacity:1;transform:translateY(0)}}

.legacy-board{border-top:1px solid #D2DADD;margin:20px 0;padding:15px 0;font-size:12px;color:#526B78}.legacy-board>summary{cursor:pointer;font-weight:750;color:#244257}.legacy-board>p{line-height:1.6}
.setting-toggle input[type=checkbox]{width:16px;height:16px;min-height:16px;margin:0;padding:0;flex-shrink:0;appearance:auto}
@media(max-width:420px){.comfort-settings{gap:12px 14px}.setting-toggle{font-size:11px}}

/* v3.1: compact A-layout and station-to-station motion */
.site-head{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:12px 0 14px}
.brand{flex:0 0 auto}.brand-logo{width:clamp(195px,31vw,290px)}
.brand-route{flex:0 1 370px;min-width:88px;max-width:370px}.mini-route{display:block;width:100%;height:auto;overflow:visible}
.route-ghost,.route-ink{fill:none;stroke-width:4;stroke-linecap:round;stroke-linejoin:round}.route-ghost{stroke:#dce7e1}.route-ink{stroke:#08745f;stroke-dasharray:100;stroke-dashoffset:100;animation:v31draw 1.6s ease-out .14s both}
.mini-stops circle{fill:#f7f6f2;stroke:#08745f;stroke-width:3.2;opacity:0;animation:v31light .24s ease-out both}
.mini-stops circle:nth-child(1){animation-delay:.16s}.mini-stops circle:nth-child(2){animation-delay:.37s}.mini-stops circle:nth-child(3){animation-delay:.62s}.mini-stops circle:nth-child(4){animation-delay:.91s}.mini-stops circle:nth-child(5){animation-delay:1.18s}.mini-stops circle:nth-child(6){animation-delay:1.5s}
@keyframes v31draw{to{stroke-dashoffset:0}}@keyframes v31light{to{opacity:1}}
.setup-view{padding-top:12px}.hero{padding:2px 0 9px;margin-bottom:5px}.hero h1{font-size:clamp(12px,1.75vw,15px);font-weight:600;letter-spacing:.075em;color:#677985}
.connection-note{font-size:12px;color:#a33b45;margin:0 0 10px;padding:8px 10px;border-left:3px solid #a33b45;background:#fff2f0}
.mode-content{transition:transform .22s ease,box-shadow .22s ease,border-color .2s ease,background .2s ease;position:relative;overflow:hidden}
.mode-option input:checked+.mode-content:after{content:'';position:absolute;bottom:0;left:0;width:100%;height:3px;background:#08745f;transform-origin:left;animation:v31drawbar .35s ease-out both}
@keyframes v31drawbar{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.mode-option input:focus-visible+.mode-content{outline:3px solid #08745f;outline-offset:3px}
.start-arrow{display:inline-flex!important;align-items:center;justify-content:center;line-height:1!important;vertical-align:middle;transform:translateY(-1px);transition:transform .22s ease!important}
.start-btn:hover .start-arrow{transform:translate(4px,-1px)}
.start-block.departing .start-btn{position:relative;overflow:hidden}.start-block.departing .start-btn:before{content:'';position:absolute;left:-30%;bottom:0;height:3px;width:40%;background:#99ead4;animation:v31depart .36s ease-out both}
@keyframes v31depart{to{left:105%}}
.complete-status{display:inline-block;font-size:12px;font-weight:700;color:#08745f;margin:6px 0 0}
.complete-award{display:flex;align-items:center;flex-direction:column;gap:7px;padding:17px 12px;margin:12px 0;border:1px solid #89c8af;background:#f1faf4;border-radius:5px;color:#08745f;animation:v31award .6s ease both}
.complete-award strong{font:800 22px 'DM Sans',sans-serif;letter-spacing:.15em}.complete-award span:last-child{font-size:12px}
.complete-award-mark{letter-spacing:.04em;font-size:11px;animation:v31award .6s ease both}
@keyframes v31award{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.site-footer{display:flex;justify-content:space-between;gap:15px;align-items:center;flex-wrap:wrap}.site-footer nav{display:flex;gap:18px}.site-footer a{color:#476579;text-decoration:none}.site-footer a:hover{text-decoration:underline;color:#08745f}
@media(max-width:650px){.site-head{gap:8px;padding:10px 0 12px}.brand-logo{width:clamp(156px,48vw,245px)}.brand-route{min-width:58px;max-width:44%}.hero h1{font-size:12px}.setup-view{padding-top:8px}}
@media(prefers-reduced-motion:reduce){.route-ink{animation:none;stroke-dashoffset:0}.mini-stops circle{animation:none;opacity:1}.start-block.departing .start-btn:before{animation:none}.complete-award,.complete-award-mark{animation:none}}

/* First-play profile and nonintrusive homepage sharing (release patch). */
.nickname-registration{border:1px solid #d8e0dc;border-radius:14px;padding:16px;margin:14px 0;background:#fff;display:grid;gap:10px}
.nickname-registration[hidden],.setup-share[hidden]{display:none!important}
.nickname-registration input{font:inherit;min-width:0;width:100%;box-sizing:border-box;padding:12px;border:1px solid #b9c9c4;border-radius:9px;background:#fff;color:#203e56}
.nickname-registration .outline-btn{justify-self:start}
.setup-profile{text-align:right;margin:8px 0}
.setup-share{text-align:center;margin:18px auto 12px;max-width:440px}
.setup-share .share-links{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:8px}
.setup-share .share-link{cursor:pointer}