:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#172b36;background:#f5f8fa;line-height:1.5;font-synthesis:none}*{box-sizing:border-box}body{margin:0}main{max-width:1280px;margin:auto;padding:32px 24px 48px}header{margin-bottom:28px}h1{font-size:2.5rem;letter-spacing:-.04em;margin:0}h2{font-size:1.15rem;margin:0}p{margin:8px 0}header>p:last-child,.muted{color:#526675}.eyebrow{font-size:.72rem;font-weight:700;letter-spacing:.13em;color:#38796a}section{margin-top:24px}.section-heading,.launch,.actions,.answer-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.section-heading,.launch{justify-content:space-between}.launch{margin-top:12px;padding:14px 18px;border:1px solid #d9e4e9;border-radius:12px;background:#fff}button,input{font:inherit}button{cursor:pointer;border:1px solid #ccd8de;background:#fff;color:#203d49;border-radius:8px;padding:9px 14px}button:hover{background:#eaf1f4}button:focus-visible,input:focus-visible{outline:3px solid #248a72;outline-offset:3px}button:disabled{cursor:default;opacity:.45}.primary{background:#176b59;color:#fff;border-color:#176b59;font-weight:600}.primary:hover{background:#105344}.exercise{background:#fff;border:1px solid #d9e4e9;border-radius:16px;padding:22px}.exercise label{display:block;margin-top:20px}.question{font-size:2.6rem;font-weight:650;margin:10px 0 18px;overflow-wrap:anywhere}.answer-row input{min-width:0;flex:1;max-width:430px;padding:12px;border:1px solid #aabbc5;border-radius:8px;font-size:1.1rem}.answer-row button{padding:12px 18px}#feedback{min-height:1.5em;margin-top:14px;font-weight:600}#feedback[data-state="correct"]{color:#176b59}#feedback[data-state="wrong"]{color:#a32d36}#score{font-size:1.3rem;margin:20px 0}.table-scroll{overflow-x:auto;margin-top:12px}table{width:100%;min-width:920px;table-layout:fixed;border-spacing:4px}th{font-size:.75rem;color:#657985;font-weight:500}td{padding:0;height:70px;text-align:center}.element{width:100%;height:100%;position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;padding:5px 2px;border:2px solid transparent;border-radius:7px;background:var(--family);color:#17313d}.element:hover{background:var(--family);filter:brightness(.96)}.element[aria-pressed="true"]{border-color:#176b59;box-shadow:inset 0 0 0 1px #176b59}.element[aria-pressed="true"]:after{content:'✓';position:absolute;right:3px;top:0;font-size:.75rem;font-weight:700;color:#105344}.number{font-size:.65rem;align-self:flex-start;margin-left:3px}.symbol{font-size:1.2rem;font-weight:650;line-height:1.1}.name{font-size:.6rem;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.series-label{height:auto;text-align:left;padding-top:12px;font-size:.85rem;color:#526675}.placeholder{font-size:.72rem;color:#526675}.legend{display:flex;flex-wrap:wrap;gap:10px 20px;margin-top:16px;font-size:.8rem;color:#526675}.legend span{display:flex;align-items:center;gap:6px}.legend i{width:12px;height:12px;border-radius:3px;background:var(--family)}[hidden]{display:none!important}@media(max-width:600px){main{padding:20px 12px}h1{font-size:2rem}.section-heading{align-items:flex-start}.actions{gap:6px}.actions button{font-size:.8rem;padding:8px}.exercise{padding:16px}.answer-row input{width:100%;flex-basis:100%}.question{font-size:2rem}}
.round-status{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:12px}#live-score{font-variant-numeric:tabular-nums;color:#176b59;font-weight:650}#question-progress{display:block;width:100%;height:8px;border:0;border-radius:20px;overflow:hidden;appearance:none;background:#e9eff1;accent-color:#288572}#question-progress::-webkit-progress-bar{background:#e9eff1;border-radius:20px}#question-progress::-webkit-progress-value{background:#288572;border-radius:20px;transition:width .3s ease}#question-progress::-moz-progress-bar{background:#288572;border-radius:20px}#results{max-width:560px;margin:20px auto 8px;text-align:center}.result-hero .medal{font-size:4rem;line-height:1.2;margin:16px 0 10px;animation:medal-arrive .45s ease-out}.result-hero h3{font-size:1.7rem;margin:8px 0 22px;letter-spacing:-.025em}.score-ring{--score:0%;width:160px;height:160px;border-radius:50%;margin:0 auto 20px;display:flex;flex-direction:column;justify-content:center;align-items:center;background:radial-gradient(closest-side,#fff 83%,transparent 84%),conic-gradient(#25836c var(--score),#edf1f2 0)}.score-ring strong{font-size:2.35rem;line-height:1.3;letter-spacing:-.04em;font-variant-numeric:tabular-nums}.score-ring span{font-size:.8rem;color:#526675}.result-hero #score{font-size:1.05rem;margin:12px 0 22px}.result-bar{height:12px;background:#f1d4d7;border-radius:20px;overflow:hidden}.result-bar span{display:block;height:100%;background:#25836c;transition:width .4s ease}.result-counts{display:flex;justify-content:space-between;gap:12px;margin-top:10px;font-size:.9rem;flex-wrap:wrap}.result-counts>span{display:flex;align-items:center;gap:5px}.dot{width:9px;height:9px;display:inline-block;border-radius:50%}.correct-dot{background:#25836c}.retry-dot{background:#c57982}#result-message{margin:24px 0 18px;font-size:.95rem}.result-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}@keyframes medal-arrive{from{transform:translateY(8px) scale(.8)}to{transform:translateY(0) scale(1)}}@media(prefers-reduced-motion:reduce){.result-hero .medal{animation:none}#question-progress::-webkit-progress-value,.result-bar span{transition:none}}@media(max-width:420px){.result-actions button{width:100%}.score-ring{width:140px;height:140px}.result-hero h3{font-size:1.4rem}}
.site-footer{margin-top:32px;text-align:center;font-size:.8rem}.site-footer a{color:#526675;text-underline-offset:3px}
.account-nav{display:flex;justify-content:flex-end;align-items:center;flex-wrap:wrap;gap:10px 18px;margin-bottom:24px;font-size:.9rem}.account-nav a,.auth-card a,.back-link{color:#176b59;text-underline-offset:3px}.account-nav form{margin:0}.account-nav .account-signup{text-decoration:none;background:#176b59;color:#fff;border-radius:8px;padding:9px 14px}.account-name{font-weight:650;overflow-wrap:anywhere;max-width:100%}.status-message{padding:12px 16px;background:#e1f1e9;border-radius:8px;color:#145442}.auth-main{max-width:520px;padding-top:32px}.back-link{display:inline-block;margin-bottom:20px}.auth-card{background:#fff;border:1px solid #d9e4e9;padding:28px;border-radius:16px;margin:0}.auth-card h1{font-size:1.9rem}.auth-form{display:grid;gap:18px;margin-top:24px}.auth-form label{display:block;font-weight:600;margin-bottom:6px}.auth-form input:not([type="checkbox"]){width:100%;padding:11px 12px;border:1px solid #aabbc5;border-radius:8px;min-width:0;font-size:1rem}.auth-form [aria-invalid="true"]{border-color:#a32d36}.auth-form .remember{display:flex;align-items:center;gap:8px;font-weight:400}.remember input{accent-color:#176b59;width:18px;height:18px}.field-error{font-size:.85rem;color:#a32d36;margin-bottom:0}.text-hint{font-size:.8rem}.auth-switch{text-align:center;font-size:.9rem;margin-top:22px}@media(max-width:480px){.auth-card{padding:20px}.auth-card h1{font-size:1.6rem}.account-nav{gap:10px}.account-nav button{padding:8px 10px}}
.site-nav{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-bottom:20px;border-bottom:1px solid #d9e4e9;margin-bottom:18px}.site-nav a{color:#294953;text-decoration:none}.site-brand{font-size:1.6rem;font-weight:750;white-space:nowrap}.site-brand span{font-size:.85rem;font-weight:500;margin-left:8px}.site-nav>div{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:.95rem}.site-nav a[aria-current=page]{color:#176b59;text-decoration:underline;text-underline-offset:7px;font-weight:650}.home-hero{padding:36px 0 20px;max-width:700px}.home-hero h1{font-size:clamp(2rem,5vw,3.6rem);line-height:1.15}.home-hero>p:last-child{font-size:1.1rem;margin-top:20px}.learning-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.learning-card{display:flex;flex-direction:column;align-items:flex-start;gap:10px;padding:28px;border:1px solid #d9e4e9;border-radius:16px;background:#fff;color:inherit;text-decoration:none;min-width:0}.learning-card h2{font-size:1.4rem;overflow-wrap:anywhere}.learning-card p{color:#526675;margin:0}.learning-card[href]:hover{border-color:#27836d;box-shadow:0 4px 18px #17313d0c}.card-symbol{display:grid;place-items:center;width:58px;height:58px;background:#d6eeec;color:#176b59;border-radius:10px;font-size:1.6rem;font-weight:700;margin-bottom:8px}.card-link{color:#176b59;font-weight:650;margin-top:auto;padding-top:14px}.parcours-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr))}.element-preview{display:flex;flex-wrap:wrap;gap:6px}.element-preview span{background:#eaf3ef;padding:5px 9px;border-radius:5px;color:#176b59;font-weight:600}.button-link{display:inline-block;padding:12px 20px;border-radius:8px;text-decoration:none}.parcours-elements{display:grid;grid-template-columns:repeat(auto-fill,minmax(95px,1fr));gap:12px;margin-top:16px}.element-card{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px;background:#d6eeec;border-radius:9px;color:#17313d}.element-card small{align-self:flex-start;font-size:.7rem}.element-card strong{font-size:1.8rem}.element-card span{font-size:.8rem}.parcours-launch{margin:22px 0 32px}@media(max-width:600px){.site-nav{gap:14px}.site-nav>div{gap:10px 16px}.learning-grid{grid-template-columns:1fr}.learning-card{padding:22px}.home-hero{padding-top:16px}.account-nav{font-size:.8rem}}
.ranking-filter{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin:24px 0}.ranking-filter select{font:inherit;max-width:100%;border:1px solid #aabbc5;border-radius:8px;background:#fff;padding:10px;color:#17313d}.ranking-panel{background:#fff;border:1px solid #d9e4e9;border-radius:16px;padding:24px}.ranking-panel .back-link{margin:0}.ranking-scroll{overflow-x:auto;margin:18px 0}.ranking-table{min-width:480px;width:100%;table-layout:auto;border-collapse:collapse;border-spacing:0}.ranking-table th,.ranking-table td{text-align:left;padding:14px 12px;height:auto;border-bottom:1px solid #e5edf0;font-size:.95rem;color:#17313d}.ranking-table thead th{color:#526675;font-weight:500}.ranking-me{background:#eaf5ef}.ranking-you{margin-left:8px;padding:2px 7px;border-radius:5px;background:#176b59;color:#fff;font-size:.75rem}.ranking-note{font-size:.8rem}.ranking-empty{padding:32px 0}#results a,.ranking-panel a{color:#176b59;text-underline-offset:3px}#save-status{font-size:.9rem;color:#176b59}@media(max-width:600px){.ranking-panel{padding:16px}.ranking-filter select{flex-basis:100%}}
.result-summary{display:flex;gap:18px;flex-wrap:wrap;margin:20px 0}.result-summary>div{background:#e8f3ee;border:1px solid #d0e5da;border-radius:12px;padding:18px 24px;display:flex;flex-direction:column;gap:4px;flex:1;min-width:200px}.result-summary strong{font-size:2rem;line-height:1.2;color:#176b59}.result-summary span{font-size:.85rem;color:#526675}.history-old{display:block;font-weight:400;color:#657985;font-size:.75rem}.history-pagination{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.9rem;margin-top:20px}.account-nav a[aria-current=page]{font-weight:700}
.round-metrics{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.round-clock{font-variant-numeric:tabular-nums;font-weight:650;color:#294953;white-space:nowrap;background:#eaf3ef;padding:5px 10px;border-radius:7px}.result-duration{font-variant-numeric:tabular-nums;margin:18px 0;color:#294953}.result-duration strong{font-size:1.2rem}