:root{--ink:#172d29;--muted:#6e7b75;--paper:#f7f8f2;--line:#dde3d7;--lime:#dcea9b;--white:#fff;--c0:#343a84;--c1:#e7958d;--c2:#f2d985;--c3:#a4cda6;--c4:#abd3e9;--c5:#fafafa;--c6:#e9e5f2;--c7:#f2c4e0;--c8:#c8cecc}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,'Hiragino Kaku Gothic ProN','Noto Sans JP',sans-serif;font-size:14px;line-height:1.7}button,a{ -webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;color:inherit;border:1px solid var(--line);background:white;border-radius:8px;padding:10px 15px;transition:background .15s,transform .15s}button:hover{filter:brightness(.97)}button:focus-visible,a:focus-visible{outline:3px solid #54762b;outline-offset:3px}header{height:78px;max-width:1260px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:0 32px;border-bottom:1px solid var(--line)}a{color:inherit}.brand{text-decoration:none;display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800}.brand small{font-size:9px;letter-spacing:.12em;color:var(--muted);margin-left:10px}.brand-icon{background:var(--ink);color:var(--lime);border-radius:8px;width:31px;height:34px;text-align:center;font-size:26px}.quiet{background:transparent;border:0;color:var(--muted);font-size:12px}main{max-width:1196px;margin:auto;padding:0 32px}.hero{display:grid;grid-template-columns:1.45fr 1fr;gap:70px;align-items:center;padding:42px 0 38px}.eyebrow{letter-spacing:.14em;font-size:10px;font-weight:700;color:var(--muted);margin:0 0 12px}h1{font-size:clamp(28px,3vw,43px);line-height:1.4;letter-spacing:-.035em;margin:0 0 16px;font-weight:800}h1 em{font-style:normal;color:#687f37}.hero p:not(.eyebrow){font-size:13px;color:var(--muted)}.hero-actions{display:flex;align-items:center;gap:16px;margin-top:24px}.hero-actions button{background:var(--ink);color:var(--lime);border-color:var(--ink);font-weight:700}.hero-actions span{font-size:11px;color:var(--muted)}.hero-card{background:#e9eedf;border:1px solid #dbe3ce;border-radius:18px;padding:26px;transform:rotate(1deg)}.mini-hands{display:flex;gap:15px}.mini-hands>b{font-size:37px;line-height:1.5;background:#fff;padding:15px 18px;border-radius:10px;box-shadow:0 3px 0 #d0d9bf;flex:1;text-align:center;letter-spacing:-.05em}.mini-hands>b:first-child{box-shadow:0 3px 0 #8774b2;border:1px solid #a89dc6}.mini-hands small{font-size:22px}.mini-hands span{display:block;font-size:10px;letter-spacing:0;font-weight:500}.hero-card p{margin-bottom:0}.tabs{display:flex;border-bottom:1px solid var(--line);margin-bottom:28px;gap:18px}.tabs button{background:transparent;border:0;border-radius:0;color:var(--muted);padding:14px 14px}.tabs button.active{color:var(--ink);box-shadow:inset 0 -3px var(--ink);font-weight:700}.tabs small{margin-right:8px;font-family:monospace;color:#849076}.workspace{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(250px,1fr);gap:25px;align-items:start}.chart-panel,.detail-panel{background:white;border:1px solid var(--line);border-radius:14px;padding:24px}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:10px}h2{font-size:23px;line-height:1.4;margin:0 0 6px}.section-heading .eyebrow{margin-bottom:5px}.segmented{background:var(--paper);display:flex;border:1px solid var(--line);border-radius:8px;padding:3px}.segmented button{font-size:10px;border:0;padding:6px 8px;background:transparent}.segmented button.active{background:var(--ink);color:white}.muted{color:var(--muted);font-size:12px;margin:8px 0 14px}.people-chips{display:flex;gap:7px;flex-wrap:wrap}.people-chips button{padding:6px 16px;font-size:12px}.people-chips .active{background:var(--lime);border-color:#b7ca74;font-weight:800}.range-summary{display:flex;align-items:center;gap:12px;padding:17px 0;font-size:12px}.range-summary>span:last-child{margin-left:auto;text-align:right;font-size:16px;font-weight:700}.range-summary small{display:block;font-size:8px;font-weight:400;color:var(--muted)}.matrix{display:grid;grid-template-columns:repeat(13,minmax(0,1fr));gap:3px}.cell{padding:0;aspect-ratio:1.03;border-radius:4px;border:1px solid transparent;position:relative;font-size:clamp(9px,1.05vw,14px);font-weight:700;line-height:1.1;min-width:0}.cell small{display:block;font-size:7px;opacity:.65;margin-top:3px}.tier-0{background:var(--c0);color:white}.tier-1{background:var(--c1)}.tier-2{background:var(--c2)}.tier-3{background:var(--c3)}.tier-4{background:var(--c4)}.tier-5{background:var(--c5);box-shadow:inset 0 0 0 1px #d8dddb}.tier-6{background:var(--c6);box-shadow:inset 0 0 0 2px #8d6fc5}.tier-7{background:var(--c7)}.tier-8{background:var(--c8)}.cell.dim{opacity:.25}.cell.selected{opacity:1;outline:2px solid var(--ink);outline-offset:1px;z-index:1}.chart-note{display:flex;justify-content:space-between;margin-top:12px;font-size:9px;color:var(--muted)}.detail-panel{padding:24px 28px}.hand-name{font-size:37px;letter-spacing:-.04em}.playing-cards{display:flex;gap:10px;margin:18px 0 22px}.playing-cards>span{display:block;width:65px;height:87px;border:1px solid #ddd;background:#fff;border-radius:8px;font-size:28px;padding:3px 11px;box-shadow:0 4px 0 #eaece5;transform:rotate(-6deg)}.playing-cards>span+span{transform:rotate(5deg)}.playing-cards b{font-size:23px;display:block;line-height:1}.red-suit{color:#c15859}.tier-label{font-size:11px;padding:6px 12px;border-radius:5px;display:inline-block}h3{font-size:17px;margin:22px 0 8px}.detail-panel p:not(.eyebrow){color:var(--muted);font-size:12px}.legend{margin:20px 0 16px;border-top:1px solid var(--line);padding-top:15px}.legend>div{display:flex;align-items:center;gap:10px;margin:6px 0;font-size:11px}.legend i{font:normal 9px monospace;width:21px;height:20px;border-radius:3px;text-align:center;line-height:20px}.legend small{margin-left:auto;color:var(--muted);font-size:10px}.source-link{font-size:10px;color:var(--muted)}footer{margin:30px 0 0;padding:22px 0 28px;border-top:1px solid var(--line);font-size:10px;color:var(--muted)}footer a{margin-left:8px}footer>span{display:block;margin-top:7px}@media(max-width:850px){.hero{gap:25px}.hero-actions{align-items:flex-start;flex-direction:column;gap:7px}.workspace{grid-template-columns:minmax(0,1.5fr) minmax(220px,1fr)}.chart-panel,.detail-panel{padding:16px}.section-heading{align-items:flex-start;flex-direction:column}.cell{font-size:10px}.brand small{display:none}.range-summary{gap:6px;font-size:10px}}@media(max-width:620px){header{height:65px;padding:0 18px}.brand{font-size:14px}.quiet{font-size:10px;padding:6px}main{padding:0 18px}.hero{padding:28px 0;grid-template-columns:1fr;gap:18px}.hero-card{padding:14px}.hero-card>.eyebrow{margin-bottom:8px}.mini-hands>b{padding:8px;font-size:30px}.hero-card p{font-size:11px!important}.hero-actions{flex-direction:row;align-items:center}.hero-actions span{max-width:110px;font-size:10px}.tabs{gap:0;justify-content:space-between;margin-bottom:16px}.tabs button{font-size:11px;padding:12px 5px}.tabs small{display:none}.workspace{grid-template-columns:1fr;gap:16px}.section-heading{flex-direction:row}.section-heading h2{font-size:19px}.segmented button{font-size:9px;padding:5px}.people-chips{gap:5px}.people-chips button{padding:5px 10px}.cell{font-size:10px}.matrix{gap:2px}.chart-note{font-size:8px}.detail-panel{display:block}.desktop{display:none}.hero .eyebrow{font-size:9px}h1{font-size:29px}.detail-panel .legend{display:grid;grid-template-columns:1fr 1fr;gap:0 15px}.legend>div{gap:5px}.legend small{font-size:8px}footer a{display:block;margin:5px 0}}
.header-right{display:flex;align-items:center;gap:12px}.header-right>span{font-size:10px;color:var(--muted)}.mode-chips{display:flex;gap:6px;margin-top:17px}.mode-chips button{font-size:10px;padding:6px 10px}.mode-chips .active,.choices .active{background:var(--ink);color:white;border-color:var(--ink)}.seats{display:flex;gap:5px;align-items:center;padding:12px 0 2px;min-height:38px}.seats span{display:flex;align-items:center;justify-content:center;border-radius:50%;background:#eef2e6;color:var(--muted);font-size:9px;width:25px;height:25px}.seats .your-seat{width:auto;border-radius:5px;padding:0 8px;background:var(--ink);color:var(--lime)}.seats i{font-style:normal;color:var(--muted);margin:0 3px}.compare{border-top:1px solid var(--line);margin-top:17px;padding-top:13px;display:flex;gap:6px;flex-wrap:wrap}.compare>span{width:100%;font-size:10px;color:var(--muted)}.compare button{font-size:10px;padding:5px 8px}.comparison{display:flex;gap:12px;background:var(--paper);padding:12px;margin:15px 0;border-radius:8px}.comparison>div{display:flex;flex:1;flex-direction:column;gap:5px;font-size:12px}.comparison small{font-size:10px}.full{width:100%}.primary{background:var(--ink)!important;color:var(--lime)!important;border-color:var(--ink)!important;font-weight:700}.detail-panel>button{font-size:11px;margin-top:8px}.tabs:first-child{padding-top:15px}.study-layout{display:grid;grid-template-columns:1.8fr 1fr;gap:25px}.study-main,.study-aside,.quiz-main,.quiz-aside,.result-panel,.review-page{background:white;border:1px solid var(--line);border-radius:14px;padding:28px}.study-main h2{font-size:27px}.field-label{display:block;font-size:11px;font-weight:700;margin-top:25px;margin-bottom:10px}.choices{display:flex;flex-wrap:wrap;gap:8px}.choices button{font-size:12px;padding:8px 12px}.start-line{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:28px}.start-line>span{font-size:10px;color:var(--muted)}.study-aside{background:#e9eedf}.study-aside h3{margin-top:10px}.memory-block,.rule{padding:19px 0;border-bottom:1px solid #d2dbc3}.memory-block:last-child,.rule:last-child{border:0}.memory-block p,.rule p{font-size:13px;margin:10px 0 0}.memory-block small{color:var(--muted);font-size:11px}.rule b{font-size:12px}.quiz-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(220px,.8fr);gap:25px}.quiz-main{padding:28px 36px;text-align:center;scroll-margin-top:20px}.quiz-top{display:flex;justify-content:space-between;align-items:center;font-size:12px}.progress-track{height:4px;background:#edf0e7;border-radius:4px;margin:14px 0 26px;overflow:hidden}.progress-track i{display:block;height:100%;background:#6e873a}.question-context{font-size:12px;color:var(--muted);background:var(--paper);padding:9px;border-radius:7px}.quiz-main h2{font-size:25px;margin-top:23px}.question-hand{display:flex;justify-content:center;align-items:center;gap:23px;margin:26px 0}.question-hand .playing-cards{margin:0}.question-hand>strong{font-size:39px;letter-spacing:-.04em}.answer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.answer-grid:not(.color-answers):has(button:nth-child(2):last-child){grid-template-columns:1fr 1fr}.answer-grid button{font-size:13px;min-height:46px;font-weight:600}.answer-grid button:disabled{cursor:default;opacity:.4}.answer-grid .answer-correct:disabled{opacity:1;outline:3px solid #4e7133;outline-offset:0}.answer-grid .answer-wrong:disabled{opacity:.8;outline:2px dashed #b1645e}.quiz-help{display:flex;justify-content:space-between;align-items:center;margin-top:20px;color:var(--muted)}.quiz-help button{font-size:11px;padding:6px 10px}.quiz-help span{font-size:10px}.hint{background:#f8f4da;font-size:12px;padding:14px;border-radius:8px;text-align:left}.feedback{text-align:left;padding:18px 20px;margin-top:24px;border-radius:9px;background:#edf4e5;border:1px solid #d3e3c4}.feedback.wrong{background:#fff3e9;border-color:#edd9c8}.feedback b{font-size:16px}.feedback p{font-size:12px;line-height:1.8;margin:10px 0 16px}.feedback>div{display:flex;justify-content:space-between;align-items:center;gap:10px}.feedback a{font-size:10px;color:var(--muted)}.feedback button{font-size:12px}.quiz-aside{background:var(--ink);color:#e8eddc}.quiz-aside .eyebrow{color:#a9bba7}.session-stat{display:flex;flex-direction:column}.session-stat strong{font-size:64px;color:var(--lime);line-height:1.3;font-weight:500}.session-stat span{font-size:11px;color:#b4c2b8}.quiz-aside>p{font-size:17px;margin:30px 0}.quiet-note{font-size:11px;color:#b8c8bc;line-height:2.1;border-top:1px solid #435950;padding-top:18px}.quiz-aside button{color:#c3d3c3;padding:5px 0;margin-top:20px}.quiz-aside>small{display:block;font-size:9px;color:#95aa9c}.hole-grid{max-width:450px;margin:15px auto 25px}.hole-grid .cell{font-size:10px}.hole-target{background:var(--ink);color:var(--lime);outline:2px solid #8dab41;opacity:1}.concealed{background:#f0f2eb;color:#849078}.result-panel{max-width:820px;margin:auto;padding:40px}.result-number{font-size:85px;line-height:1.5;color:#6e873a}.result-number small{font-size:20px;color:var(--muted)}.mistake-list{border-top:1px solid var(--line)}.mistake-list>div{display:flex;gap:20px;align-items:center;border-bottom:1px solid var(--line);padding:12px 0;font-size:12px}.mistake-list b{width:60px}.mistake-list strong{margin-left:auto}.mistake-list span{color:var(--muted)}.review-page{background:transparent;border:0;padding:0}.review-page>.section-heading{margin:8px 0 25px}.review-page>.section-heading>button{font-size:10px}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-bottom:24px}.stats-grid>div{background:#e9eedf;border-radius:10px;padding:20px}.stats-grid strong{font-size:32px;display:block;font-weight:600}.stats-grid span{font-size:10px;color:var(--muted)}.heat-0{background:#f1f3ed;color:#849078}.heat-1{background:#e0eab7}.heat-2{background:#a4be71}.heat-3{background:#50743a;color:white}.heat-legend{display:flex;gap:9px;align-items:center;margin-top:16px;font-size:10px;color:var(--muted)}.heat-legend i{width:16px;height:16px;border-radius:3px}.due-list{margin-top:25px}.due-list>div{display:flex;gap:10px;align-items:center;padding:9px 0;border-bottom:1px solid var(--line);font-size:11px}.due-list b{width:40px}.due-list span{color:var(--muted)}.due-list small{margin-left:auto;font-size:9px}.storage-note{margin-top:20px!important;font-size:10px!important}dialog{position:fixed;z-index:20;top:50%;left:50%;transform:translate(-50%,-50%);margin:0;width:560px;max-width:calc(100vw - 32px);max-height:calc(100dvh - 40px);overflow:auto;border:1px solid var(--line);border-radius:16px;padding:27px;color:var(--ink);box-shadow:0 20px 70px #0003}.modal-backdrop{position:fixed;inset:0;background:#182b2466;z-index:19;backdrop-filter:blur(3px)}.dialog-top{display:flex;justify-content:space-between;align-items:center}.dialog-top button{font-size:11px;border:0;padding:3px}.basic-row{display:flex;gap:18px;padding:15px 0;border-bottom:1px solid var(--line)}.basic-row>span{font-size:11px;color:#779247;padding-top:5px}.basic-row h3{font-size:16px;margin:0 0 8px}.basic-row p,dialog details p{font-size:12px;color:var(--muted);margin:0}dialog details{margin:18px 0;font-size:11px}dialog details p{margin:12px 0}dialog>button{margin-top:13px}.decision{display:inline-block;padding:3px 0;border-bottom:3px solid var(--lime)}@media(max-width:850px){.quiz-layout{grid-template-columns:minmax(0,1fr) 220px}.quiz-main{padding:24px}.study-layout{grid-template-columns:1.5fr 1fr}.study-main,.study-aside{padding:20px}.quiz-main h2{font-size:22px}.range-summary>span:last-child{font-size:13px}.range-summary>span:nth-child(2){font-size:10px}}@media(max-width:620px){.header-right>span{display:none}.study-layout,.quiz-layout{grid-template-columns:1fr;gap:16px}.study-main,.study-aside,.quiz-main,.quiz-aside,.result-panel{padding:21px}.study-main h2,.quiz-main h2{font-size:22px}.choices button{font-size:11px}.quiz-aside{display:none}.answer-grid button{font-size:12px}.question-context{font-size:10px}.stats-grid{grid-template-columns:1fr 1fr;gap:9px}.stats-grid>div{padding:14px}.stats-grid strong{font-size:29px}.feedback{padding:15px}.feedback p{font-size:11px}.quiz-help span{font-size:9px}.review-page>.section-heading{align-items:center}.review-page h2{font-size:19px}.people-chips button{min-height:34px}.seats{gap:4px}.seats span{width:22px;height:22px}.range-summary{padding:13px 0}.range-summary>span:nth-child(2){max-width:120px}.range-summary>span:last-child{font-size:13px}.review-page .detail-panel .legend{display:block}.result-number{font-size:70px}.hole-grid .cell{font-size:8px}.chart-panel .mode-chips button{font-size:10px;padding:6px 7px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
@media(min-width:850px){header{height:68px}.hero{padding:24px 0 23px;gap:65px}.hero h1{font-size:35px;line-height:1.35;margin-bottom:10px}.hero .eyebrow{margin-bottom:8px}.hero p:not(.eyebrow){margin:8px 0}.hero-actions{margin-top:14px}.hero-card{padding:21px}.mini-hands>b{padding:11px 15px;font-size:33px}.tabs{margin-bottom:21px}.mode-chips{margin-top:11px}.seats{padding-top:8px;min-height:31px}.range-summary{padding:12px 0}.chart-panel .muted{margin:8px 0 10px}}
.matrix-toolbar{display:flex;justify-content:space-between;align-items:center;font-size:9px;color:var(--muted);margin:0 0 9px}.matrix-toolbar button{padding:3px 7px;font-size:9px;line-height:1.5}

/* Compact tool interface */
.tool{max-width:1120px;padding:0 24px}.tool-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:66px;margin-bottom:16px;border-bottom:1px solid var(--line)}.tool-bar .tabs{border:0;margin:0;gap:5px;padding:0}.tool-bar .tabs button{padding:11px 14px;border-radius:7px;font-size:13px}.tool-bar .tabs button.active{box-shadow:none;background:#e7edda;color:var(--ink)}.tool-actions{display:flex;align-items:center;gap:7px}.tool-actions>span{font-size:10px;color:var(--muted)}.tool-actions>button{font-size:11px;padding:8px 12px;white-space:nowrap}.tool .workspace{grid-template-columns:minmax(0,2.1fr) minmax(260px,1fr);gap:16px}.tool .chart-panel,.tool .detail-panel{padding:16px;border-radius:10px}.chart-controls{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}.chart-controls .mode-chips{margin:0}.chart-controls .segmented{flex-shrink:0}.tool .chart-panel>.muted{margin:13px 0 8px;font-size:11px}.tool .people-chips button{padding:5px 13px;min-height:34px}.tool .seats{padding-top:8px;min-height:30px}.tool .range-summary{padding:10px 0;gap:9px}.tool .range-summary>span:nth-child(2){font-size:10px}.tool .range-summary>span:last-child{font-size:14px}.tool .cell{aspect-ratio:1.26;font-size:12px}.tool .cell small{font-size:7px;margin-top:2px}.tool .matrix-toolbar{margin-bottom:8px}.tool .matrix-toolbar button{font-size:10px;padding:4px 8px}.tool .chart-note{margin-top:8px}.tool .compare{margin-top:12px;padding-top:10px}.tool .compare>span{width:auto;align-self:center;margin-right:2px}.tool .hand-name{font-size:27px;margin:0}.tool .detail-panel .playing-cards{margin:10px 0 16px}.tool .playing-cards>span{width:50px;height:67px;font-size:23px;padding:2px 9px}.tool .playing-cards b{font-size:20px}.tool .detail-panel .decision{margin:14px 0 2px;font-size:16px}.tool .detail-panel>p{margin:7px 0 10px;font-size:11px}.tool .legend{margin:16px 0 10px;padding-top:10px}.tool .legend>div{margin:5px 0}.tool .tier-label{padding:4px 8px;font-size:10px}.tool .study-layout,.tool .quiz-layout{gap:16px}.tool .study-main,.tool .study-aside,.tool .quiz-main,.tool .quiz-aside,.tool .result-panel{padding:24px;border-radius:10px}.tool .field-label:first-child{margin-top:0}.tool .study-aside{background:#eef2e6}.study-reference summary{font-size:12px;cursor:pointer;font-weight:600}.tool .session-stat strong{font-size:44px}.tool .quiet-note{margin-top:16px;font-size:10px}.tool .result-panel h2,.tool .review-page h2{font-size:20px}.tool .review-page>.section-heading{margin:0 0 16px}.tool .stats-grid{gap:12px;margin-bottom:16px}.tool .stats-grid>div{padding:14px 16px}.tool .stats-grid strong{font-size:27px}.tool-footer{display:flex;align-items:baseline;flex-wrap:wrap;gap:8px 16px;margin-top:20px;padding:14px 0 22px;font-size:10px}.tool-footer>span{margin:0}.tool-footer>a{margin:0}.tool-footer details{margin-left:auto;max-width:100%;font-size:10px}.tool-footer summary{cursor:pointer}.tool-footer details[open]{flex-basis:100%;margin:0}.tool-footer details p{max-width:760px}.tool dialog .dialog-top{justify-content:flex-end}.tool .quiz-main h2{font-size:22px}
@media(max-width:850px){.tool{padding:0 18px}.tool .workspace{grid-template-columns:minmax(0,1.8fr) minmax(220px,1fr)}.tool .cell{font-size:10px}.chart-controls{align-items:flex-start}.tool .range-summary{flex-wrap:wrap}.tool .range-summary>span:nth-child(2){font-size:9px}.tool .range-summary>span:last-child{font-size:12px}.tool-bar .tabs button{padding:10px 11px}}
@media(max-width:620px){.tool{padding:0 10px}.tool-bar{flex-wrap:wrap;gap:6px;padding:9px 0;margin-bottom:10px;min-height:0}.tool-bar .tabs{flex:1;justify-content:space-between}.tool-bar .tabs button{font-size:12px;padding:9px 10px;white-space:nowrap}.tool-actions{gap:4px;margin-left:auto}.tool-actions>span{display:none}.tool-actions>button{padding:6px 9px;font-size:10px}.tool .workspace,.tool .study-layout,.tool .quiz-layout{grid-template-columns:1fr;gap:10px}.tool .chart-panel,.tool .detail-panel{padding:12px}.tool .cell{aspect-ratio:1.12;font-size:10px}.tool .cell small{font-size:6px;margin-top:2px}.tool .chart-controls{gap:8px}.tool .chart-controls .segmented{margin-left:auto}.tool .chart-controls .mode-chips button{font-size:10px;padding:6px 8px}.tool .people-chips{gap:5px}.tool .people-chips button{padding:5px 10px}.tool .range-summary>span:nth-child(2){max-width:none}.tool .compare{gap:5px}.tool .compare>span{width:100%}.tool .detail-panel .legend{display:grid;grid-template-columns:1fr 1fr}.tool .study-main,.tool .study-aside,.tool .quiz-main,.tool .result-panel{padding:18px}.tool .quiz-main h2{font-size:20px}.tool .quiz-help span{font-size:8px}.tool .stats-grid{gap:8px}.tool .stats-grid>div{padding:12px}.tool-footer{gap:6px 12px}.tool-footer>a{display:inline}.tool-footer details{margin-left:0}.tool .chart-note{font-size:8px}.tool .section-heading h3{margin-top:0}}
@media(max-width:360px){.tool-bar .tabs{flex-basis:100%}.tool .cell{font-size:9px}.tool .cell small{font-size:5px}.tool .range-summary{gap:6px}.tool .range-summary>span:nth-child(2){font-size:8px}.tool .range-summary>span:last-child{font-size:11px}}

.tool{max-width:1080px}.tool .cell{aspect-ratio:1.38}.position-controls{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:12px}.position-controls>.muted{margin:0;font-size:10px;white-space:nowrap}.tool .range-summary{padding:13px 0 10px}.tool .detail-panel .decision{margin-left:6px}@media(max-width:850px){.position-controls{gap:6px}.tool .cell{aspect-ratio:1.3}}@media(max-width:620px){.position-controls{gap:7px;margin-top:12px}.tool .cell{aspect-ratio:1.12}.position-controls>.muted{width:100%}.tool .range-summary{padding:11px 0}.tool .detail-panel .decision{margin-left:6px}}

.mobile-selection{display:none}@media(max-width:620px){.mobile-selection{display:flex;align-items:center;gap:7px;margin-top:12px;padding-top:10px;border-top:1px solid var(--line);font-size:10px}.mobile-selection>strong{font-size:15px}.mobile-selection>button{margin-left:auto;font-size:10px;padding:5px 10px}.tool .mobile-selection .tier-label{padding:3px 7px}.tool .compare{margin-top:10px}}