:root{--ink:#142e50;--blue:#204d7c;--muted:#64758a;--line:#dbe4ee;--paper:#fff;--bg:#f4f7fb;--green:#16734f;--red:#a33138;--gold:#906417}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);font:16px/1.55 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button,a{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{opacity:.5;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #d19f42;outline-offset:3px}[hidden]{display:none!important}.wrap{width:min(1180px,calc(100% - 40px));margin:auto}.preview-bar{background:#e7edf5;padding:9px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12px;color:#425771}.preview-bar label{display:flex;align-items:center;gap:8px;white-space:nowrap}.preview-bar select{font-size:12px;border:1px solid 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0}.close{border:0;background:none;font-size:29px;line-height:1;min-width:36px;min-height:36px;color:var(--ink)}.archive-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:25px}.archive-day{text-align:left;border:1px solid var(--line);background:white;padding:14px;min-height:120px;color:var(--ink);border-radius:4px}.archive-day.active{border:2px solid var(--blue);padding:13px;background:#f0f5fb}.archive-day small{display:block;font-size:11px;color:#708299}.archive-day strong{display:block;font-size:14px;margin:7px 0;line-height:1.3}.archive-day span{font-size:11px;color:var(--green)}@media(max-width:920px){.daily-layout{grid-template-columns:minmax(0,1fr) 270px;gap:18px}.intro,.quiz,.result,.history{padding:25px}.board{padding:20px}nav{gap:12px}}@media(max-width:740px){.daily-layout{grid-template-columns:1fr}.sidebar{display:grid;grid-template-columns:1fr}.practice-note{padding:20px 5px}.wrap{width:calc(100% - 28px)}.header-inner{width:calc(100% - 28px);flex-wrap:wrap;gap:7px;padding:13px 0}.brand{font-size:21px}.brand img{width:37px;height:36px}nav{width:100%;justify-content:space-between}.preview-bar{align-items:start;gap:8px;padding:8px 14px;font-size:10px}.preview-bar>span{max-width:55%}.preview-bar select{width:100px}.ad-preview{height:45px;margin:14px 0}.intro,.quiz,.result,.history{padding:24px 20px}.intro h1{font-size:39px;letter-spacing:-1.5px}.lead{font-size:15px}.intro h2{font-size:24px}.answers{grid-template-columns:1fr}.quiz h2{font-size:23px}.quiz-top{font-size:12px;gap:9px}.quiz-top .text-button{font-size:11px}.start-row{gap:9px}.start-row .primary{flex:1;padding:11px}.round-facts{gap:7px 12px}.round-facts span+span:before{margin-right:10px}.archive-grid{grid-template-columns:1fr 1fr}.archive-day{padding:11px;min-height:116px}dialog{padding:20px}.score-display strong{font-size:78px}.result h1{font-size:29px}.board{padding:24px}.section-title{font-size:22px}}@media(prefers-reduced-motion:no-preference){button,a{transition:background-color .12s,border-color .12s}}@media(max-width:360px){.start-row{flex-wrap:wrap}.start-row .primary{flex-basis:100%}.intro h1{font-size:34px}.archive-grid{grid-template-columns:1fr}}

@media(max-width:740px){.intro h1{font-size:34px;line-height:1.1;margin:12px 0}.intro>.lead{font-size:14px;line-height:1.55;margin:12px 0}.today-label{padding-top:16px;margin-top:18px}.intro h2{font-size:22px}.round-facts{margin:15px 0}.start-box{padding:15px}.start-box small{font-size:11px}.ad-preview{height:32px}.preview-bar select{max-width:130px}.rules-note{margin-top:14px}}

/* Date-only personal challenge: no registration or public score table. */
.wrap{max-width:850px}.daily-layout{display:block}.daily-main{width:100%}.start-row{margin-top:0}.start-row .primary{min-width:190px}.today-label{font-weight:650}.intro h1{max-width:660px}.preview-bar select{max-width:210px}@media(max-width:740px){.preview-bar select{max-width:150px}.start-row .primary{min-width:0;width:100%}}

#historyList{font-size:14px;color:#61758c;line-height:1.6}.history-stats{justify-content:space-between;gap:20px}.history-stats strong{font-size:38px}.preview-bar{justify-content:center}@media(max-width:400px){.history-stats strong{font-size:30px}.history-stats{gap:15px}.history-stats span{font-size:10px}}

.daily-navigation{display:flex;align-items:center;gap:16px}.daily-navigation a{color:var(--blue);font-size:13px;text-decoration:none;font-weight:650}.daily-ad{max-width:970px;margin:14px auto;text-align:center}.daily-ad .ad-label{font-size:10px;color:#61758c}.daily-ad .mcl-ad-mobile{display:none!important}@media(max-width:740px){.daily-navigation{gap:12px;flex-wrap:wrap}.daily-navigation a{font-size:12px}.daily-navigation #language{max-width:110px}}

.speed-clock{min-height:42px;margin:12px 0;padding:10px 12px;background:#edf3fa;border-left:3px solid #365f91;font-size:14px;font-weight:650;color:#183b68;font-variant-numeric:tabular-nums;box-sizing:border-box}

.ad-slot.bottom-banner,.ad-slot.bottom-banner .ad-label,.ad-slot.bottom-banner .ad-separation-note{text-align:center!important}.ad-slot.bottom-banner .ad-label{justify-content:center}