:root{color-scheme:light;--bg:#f7f7f7;--panel:#fff;--ink:#111;--muted:#626262;--line:#dedede;--green:#111;--on:#fff;--soft:#efefef;--bad:#9b4338;--success:#24684c;--success-bg:#edf6ef;--review:#8a551e;--review-bg:#fbf2e4;--accent-blue:#3f5e79;--blue-bg:#eef3f8}
:root[data-theme="dark"]{color-scheme:dark;--bg:#101010;--panel:#181818;--ink:#f5f5f5;--muted:#b0b0b0;--line:#3b3b3b;--green:#f4f4f4;--on:#111;--soft:#262626;--bad:#dedede}
.header-actions{display:grid;justify-items:end;gap:10px}.header-actions .local-label{max-width:none}.choice-buttons{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.choice-buttons button{text-align:left;white-space:normal;overflow-wrap:anywhere}.session-actions{margin:16px 0}.start-card{display:flex;align-items:flex-start;flex-direction:column;gap:8px}.start-card p{flex:1}.start-card h3{margin:4px 0}.welcome{max-width:75ch}.welcome h2{font-size:30px;margin-top:8px}.status-line{max-width:1150px;margin:auto;padding:0 32px;color:var(--green)}.status-line:empty{display:none}dialog{background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:16px;max-width:min(560px,calc(100% - 32px));padding:28px;box-shadow:0 16px 70px #0004}dialog::backdrop{background:#0007}dialog p{line-height:1.65}dialog button{white-space:normal}.archive-list{list-style:none;padding:0}.archive-list li{border-top:1px solid var(--line);padding:14px 0}.archive-list .row{margin-top:8px}@media(max-width:700px){.header-actions{justify-items:start}.choice-buttons{flex-direction:column;align-items:stretch}.welcome h2{font-size:25px}.status-line{padding:0 18px}dialog{padding:20px}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,BlinkMacSystemFont,sans-serif}header,nav,main,footer{max-width:1150px;margin:auto;padding:24px 32px}header{display:flex;justify-content:space-between;align-items:center;gap:24px;padding-top:42px;padding-bottom:26px}.eyebrow{letter-spacing:.13em;font-size:12px;font-weight:650;color:var(--green)}h1{font-size:34px;letter-spacing:-.04em;line-height:1.2;margin:8px 0}h1 span{font-weight:400;color:var(--muted)}header p{margin:8px 0;color:var(--muted)}.local-label{font-size:12px;max-width:160px;color:var(--muted)}nav{display:flex;gap:8px;flex-wrap:wrap;padding-top:0;border-bottom:1px solid var(--line)}button,select,input,textarea{font:inherit}button{border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:9px;padding:9px 15px;cursor:pointer;min-height:44px}button:hover{background:var(--soft)}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible{outline:3px solid var(--green);outline-offset:3px}button[aria-pressed=true],button.primary{background:var(--green);color:var(--on);border-color:var(--green)}button:disabled{opacity:.5;cursor:default}select,input,textarea{color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:7px;padding:10px;max-width:100%}select{min-height:44px}a{color:var(--green);text-underline-offset:3px}h2{font-size:24px;line-height:1.3;margin:0 0 10px}h3{font-size:19px;line-height:1.4;margin:0 0 12px}p{margin:8px 0 16px}.muted{color:var(--muted)}.small{font-size:13px}.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.between{justify-content:space-between}.stack{display:grid;gap:20px}.card{background:var(--panel);border:1px solid var(--line);border-radius:15px;padding:24px}.notice{border-left:3px solid var(--green);padding:6px 16px;color:var(--muted);margin:16px 0}.two{display:grid;grid-template-columns:1fr 1fr;gap:24px}.passage{white-space:pre-line;line-height:1.85;max-width:76ch}.question{padding:20px 0;border-top:1px solid var(--line)}.question legend{font-weight:600;white-space:pre-line;padding:0;margin-bottom:10px}.question fieldset{padding:0;border:0;margin:0;min-width:0}.choice{display:flex;gap:10px;align-items:flex-start;margin:8px 0;cursor:pointer}.choice input{accent-color:var(--green);margin-top:7px;min-width:18px;min-height:18px}.choice:has(input:focus-visible){outline:2px solid var(--green);outline-offset:2px}.answer{width:100%;max-width:450px}.feedback{margin-top:12px;padding:12px 16px;background:var(--soft);border-radius:8px}.incorrect{color:var(--bad)}.correct{color:var(--green)}.timer{font-variant-numeric:tabular-nums;font-weight:600}.group-nav{margin:16px 0}.question-nav{display:flex;flex-wrap:wrap;gap:5px}.question-nav button{padding:5px 10px;font-size:13px}.score{font-size:32px;font-weight:650;letter-spacing:-.03em}.scores{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}.scores .card{padding:18px}textarea{width:100%;min-height:300px;resize:vertical;line-height:1.7}.audio{width:100%;margin:10px 0}.pdf{width:100%;height:660px;border:1px solid var(--line);border-radius:8px}.library-list{display:grid;gap:10px;padding-left:24px}.result-row{padding:12px 0;border-bottom:1px solid var(--line)}.meter{height:5px;background:var(--line);border-radius:3px;margin:16px 0}.meter span{display:block;height:100%;background:var(--green);border-radius:3px}.hidden{display:none!important}.word-count{font-variant-numeric:tabular-nums}.checklist label{display:block;margin:10px 0}.error{color:var(--bad)}footer{font-size:12px;color:var(--muted);padding-bottom:32px}.badge{font-size:12px;padding:4px 9px;background:var(--soft);border-radius:20px;color:var(--green)}.break-word{overflow-wrap:anywhere}details{margin:12px 0}summary{cursor:pointer;color:var(--green)}[hidden]{display:none!important}@media(max-width:700px){header,nav,main,footer{padding-left:18px;padding-right:18px}header{align-items:flex-start;flex-direction:column;gap:4px}.local-label{max-width:none}h1{font-size:28px}.two{grid-template-columns:1fr}.card{padding:18px}nav button{font-size:14px;padding:8px 12px}.pdf{height:460px}.question-nav button{min-width:44px}}
/* Curso Inglés B2 · diseño monocromo */
body{background:#fafafa}header,nav,main,footer{max-width:1280px}header{padding-top:30px;padding-bottom:28px}.brand{display:flex;align-items:center;gap:18px}.brand-symbol{display:grid;place-content:center;width:68px;height:68px;flex-shrink:0;background:#111;color:#fff;border-radius:18px;font-size:29px;font-weight:800;letter-spacing:-2px;position:relative}.brand-symbol span{font-size:17px;position:absolute;right:8px;top:1px}.brand .eyebrow{font-size:10px;letter-spacing:.19em}header h1{font-size:26px;margin:2px 0 0;letter-spacing:-.05em}header p{font-size:12px;margin:4px 0 0}.header-actions button{font-size:13px;border-color:#111;border-radius:25px;padding:10px 20px}.local-label{font-size:10px}.skip-link{position:absolute;top:-100px;left:12px;background:#111;color:white;z-index:10;padding:12px}.skip-link:focus{top:12px}nav{gap:5px;border-top:1px solid var(--line);padding-top:16px;padding-bottom:16px}nav button{font-size:12px;font-weight:550;border-color:transparent;background:transparent;border-radius:24px;padding:8px 14px}nav button:hover{border-color:var(--line)}main{padding-top:38px}.home-stack{gap:50px}.home-hero{display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:center}.home-hero h2{font-size:clamp(56px,6.2vw,83px);letter-spacing:-.07em;line-height:1.03;margin:22px 0}.home-hero h2 span{color:#999}.home-hero>div>p{max-width:52ch;color:var(--muted);font-size:15px;line-height:1.8;margin-bottom:25px}.home-hero button{border-radius:26px;font-size:13px;padding:12px 22px}.daily-panel{background:#111;color:white;border-radius:24px;padding:34px;min-height:360px;position:relative;overflow:hidden}.daily-panel::after{content:'↗';font-size:210px;font-weight:200;position:absolute;right:-20px;top:42px;color:#ffffff0c;pointer-events:none;line-height:1}.daily-panel .eyebrow{color:#aaa;font-size:10px}.daily-panel h3{font-size:30px;letter-spacing:-.04em;line-height:1.2;margin:24px 0}.daily-panel ol{list-style:none;padding:0;margin:26px 0;font-size:13px}.daily-panel li{display:flex;gap:20px;padding:11px 0;border-top:1px solid #ffffff25}.daily-panel li span{color:#999;font-size:11px;align-self:center}.daily-panel button{background:white;color:#111;border-color:white;border-radius:24px;width:100%;position:relative;z-index:1}.daily-panel .small{color:#aaa;font-size:10px;margin-bottom:0;text-align:center}.home-stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 0;gap:10px}.home-stats>div{display:flex;align-items:center;gap:16px;padding:0 20px;border-right:1px solid var(--line)}.home-stats>div:first-child{padding-left:0}.home-stats>div:last-child{border:0}.home-stats strong{font-size:33px;font-weight:650;letter-spacing:-.06em;line-height:1}.home-stats span{font-size:11px;color:var(--muted);max-width:80px;line-height:1.45}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:22px}.section-heading h2{font-size:29px;letter-spacing:-.045em;margin:8px 0 0}.section-heading .eyebrow{font-size:10px}.section-heading button{font-size:12px;border:0;background:transparent}.home-learning-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.learning-tile{position:relative;text-align:left;padding:26px;border-radius:18px;min-height:253px;background:#fff}.tile-number{font-size:10px;letter-spacing:.13em;color:var(--muted)}.learning-tile h3{font-size:25px;letter-spacing:-.045em;line-height:1.2;margin:25px 0 15px}.learning-tile p{font-size:12px;color:var(--muted);max-width:27ch;line-height:1.8;margin-bottom:24px}.tile-arrow{position:absolute;right:23px;bottom:18px;font-size:23px}.learning-tile:hover{border-color:#111;background:#f3f3f3}.exam-path{padding:30px;display:flex;align-items:flex-start;flex-direction:column}.exam-path h3{font-size:35px;letter-spacing:-.055em;margin:20px 0 10px}.exam-path p{font-size:13px;line-height:1.8;color:var(--muted);flex:1}.exam-path .badge{font-size:9px;letter-spacing:.11em}.exam-path button{font-size:12px;border-radius:25px;margin-top:8px}.home-progress{display:grid;grid-template-columns:1fr 1fr;gap:25px;align-items:center;background:#f0f0f0;border:0}.home-progress h3{font-size:24px;letter-spacing:-.04em}.home-progress p{font-size:12px;color:var(--muted);margin:0;max-width:50ch}.home-progress button{font-size:11px;background:#fff}.home-progress .row{justify-content:flex-end}.choice-buttons{gap:7px}.choice-buttons button{font-size:12px;flex:1 1 190px}.card{box-shadow:0 1px 2px #00000002}.passage{font-family:Georgia,serif;font-size:18px;line-height:1.9;max-width:78ch}.question legend{font-size:15px}.notice{font-size:13px}footer{border-top:1px solid var(--line);margin-top:30px;padding-top:22px}.home-hero .eyebrow{font-size:10px}
@media(max-width:950px){.home-hero{gap:30px}.home-stats>div{padding:0 12px;gap:10px}.home-learning-grid{gap:12px}.learning-tile{padding:22px}.learning-tile h3{font-size:23px}.daily-panel{padding:27px}.home-progress{grid-template-columns:1fr}.home-progress .row{justify-content:flex-start}}
@media(max-width:700px){header{padding-top:22px;padding-bottom:22px;gap:20px}.brand-symbol{width:53px;height:53px;font-size:24px;border-radius:14px}.brand{gap:12px}header h1{font-size:23px}.header-actions{width:100%;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between}.header-actions .local-label{max-width:150px;text-align:right;font-size:9px}.header-actions button{font-size:11px;padding:8px 14px}nav{gap:3px;overflow-x:auto;flex-wrap:nowrap}nav button{flex-shrink:0;padding:7px 13px;font-size:11px}main{padding-top:25px}.home-hero{grid-template-columns:1fr;gap:28px}.home-hero h2{font-size:64px;margin:19px 0}.home-hero>div>p{font-size:13px}.home-hero .row{gap:8px}.home-hero button{font-size:12px;padding:11px 18px}.daily-panel{min-height:0;padding:26px}.daily-panel h3{font-size:29px}.daily-panel ol{margin:20px 0}.home-stats{grid-template-columns:1fr 1fr;gap:22px 10px;padding:23px 0}.home-stats>div{padding-left:0;border:0;gap:12px}.home-stats strong{font-size:31px}.home-stats span{max-width:90px}.home-stack{gap:32px}.home-learning-grid{grid-template-columns:1fr}.learning-tile{min-height:190px;padding:23px}.learning-tile h3{margin:15px 0 10px;font-size:25px}.learning-tile h3 br{display:none}.learning-tile p{max-width:34ch;margin-bottom:10px;font-size:12px}.section-heading{align-items:flex-start;flex-direction:column;gap:12px}.section-heading h2{font-size:26px}.section-heading button{padding:0;min-height:30px}.exam-path{padding:25px}.exam-path h3{font-size:32px}.home-progress{padding:24px}.home-progress h3{font-size:23px}.passage{font-size:17px}.choice-buttons button{flex-basis:auto}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

.home-learning-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.learning-tile h3{font-size:23px}.learning-tile:nth-child(2) .tile-number{color:var(--accent-blue)}.learning-tile:nth-child(3) .tile-number{color:var(--review)}.learning-tile:nth-child(4) .tile-number{color:var(--success)}@media(max-width:1050px){.home-learning-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:700px){.home-learning-grid{grid-template-columns:1fr}.learning-tile h3{font-size:25px}}