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0}.duel-result{padding:13px;background:#f1edff;border-radius:8px;font-size:14px}.below-panel{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;color:#8591a7;margin-top:17px;font-size:13px}.sparkle{color:#c9fa55;margin-right:6px}.side-column{padding-top:39px;display:grid;align-content:start;gap:18px}.side-card{padding:24px;border-radius:13px}.challenge-card{background:#c9fa55;color:#14251f;min-height:311px}.card-top{display:flex;justify-content:space-between;align-items:start;font-size:12px;font-weight:800;letter-spacing:.13em}.corner-glyph{font-size:20px;font-weight:500;line-height:1}.crossword{display:flex;gap:4px;margin:22px 0 17px;transform:rotate(-3deg);transform-origin:left center}.crossword span{width:37px;height:40px;display:grid;place-items:center;background:#fff;border:1px solid #111d20;border-radius:4px;box-shadow:2px 3px 0 #14251f;font-family:system-ui,-apple-system,Segoe UI,Arial,sans-serif;font-weight:700;font-size:21px}.side-card 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p{margin:0}.history-list{display:grid;gap:9px}.history-item{display:flex;justify-content:space-between;gap:10px}.history-item strong{color:#d3ff72}.how-section{max-width:1430px;margin:auto;padding:57px max(4.7vw,22px) 85px;border-top:1px solid #2b354b;display:grid;grid-template-columns:.9fr 1.5fr;gap:45px}.how-intro h2{font-family:system-ui,-apple-system,Segoe UI,Arial,sans-serif;line-height:1.09;font-size:clamp(34px,3.6vw,52px);letter-spacing:-.07em;margin:16px 0 0}.how-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.how-steps>div{border-top:2px solid #68748c;padding-top:13px}.how-steps>div>span{font-family:system-ui,-apple-system,Segoe UI,Arial,sans-serif;color:#c9fa55;font-size:13px}.how-steps h3{font-size:17px;margin:24px 0 8px}.how-steps p{font-size:14px;color:#a8b3c7;line-height:1.6}.site-footer{padding:28px max(4.7vw,22px);border-top:1px solid #2a344c;display:flex;align-items:center;gap:28px;flex-wrap:wrap;font-size:13px;color:#8592a8}.footer-brand{font-family:system-ui,-apple-system,Segoe UI,Arial,sans-serif;color:#fff;font-size:16px;font-weight:700}.footer-brand span{color:#c9fa55}.site-footer p{margin:0}.site-footer>span{margin-left:auto}@media(max-width:1000px){.layout{gap:25px;grid-template-columns:minmax(0,1.5fr) minmax(250px,.8fr)}.start-screen,.question-screen,.result-screen{padding:28px}.game-column h1{font-size:59px}.crossword span{width:32px;height:36px}}@media(max-width:760px){.site-header{height:70px}.site-header nav{display:none}.header-date{font-size:11px}.layout{display:block;padding-top:40px;padding-bottom:55px}.game-column 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h2{font-size:24px}.answer{font-size:15px;padding:10px}.side-column{grid-template-columns:1fr}.challenge-card{min-height:0}.practice-card{min-height:0}.crossword{margin:17px 0}.how-steps{grid-template-columns:1fr}.how-steps>div{padding-top:10px}.how-steps h3{margin:8px 0}.site-footer>span{margin-left:0}.below-panel{font-size:12px}.result-score strong{font-size:90px}.score-breakdown strong{font-size:18px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
/* Training ladder */
.training-screen{padding:35px 45px 42px}.training-screen h2{font:700 32px/1.16 system-ui,-apple-system,Segoe UI,Arial,sans-serif;letter-spacing:-.055em;margin:0 0 9px}.training-screen>p{color:#69768b;line-height:1.55;max-width:560px;margin-bottom:22px}.stage-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:22px}.stage-card{background:white;border:1px solid #dce1ea;border-radius:9px;min-height:83px;padding:11px 14px;text-align:left;display:flex;align-items:center;gap:12px;color:#182139}.stage-card:not(:disabled):hover{border-color:#6243d5;background:#f6f3ff}.stage-card:disabled{opacity:.55}.stage-number{font:700 16px system-ui,-apple-system,Segoe UI,Arial,sans-serif;width:39px;height:39px;background:#eeeaff;color:#6243d5;border-radius:7px;display:grid;place-items:center;flex:none}.stage-card:disabled .stage-number{background:#e9ebef;color:#738096}.stage-card strong,.stage-card small{display:block}.stage-card strong{font-size:14px}.stage-card small{font-size:12px;color:#8792a2;margin-top:3px}.stage-card .stage-end{margin-left:auto;font-size:14px;color:#6243d5}.stage-card:disabled .stage-end{color:#8792a2}@media(max-width:540px){.training-screen{padding:23px 20px 30px}.stage-grid{grid-template-columns:1fr}.training-screen h2{font-size:28px}}
.alias-field{max-width:270px;margin:22px auto 0;text-align:left}.alias-field label{display:block;font-size:13px;font-weight:700;margin-bottom:6px}.alias-field label span{font-weight:400;color:#718096}.alias-field input{width:100%;min-height:42px;border:1px solid #cbd2e0;border-radius:8px;padding:9px 12px;font:inherit;color:#182139}.alias-field input:focus{outline:3px solid #c9fa55;outline-offset:2px}.legal-main{max-width:760px;margin:auto;padding:70px 24px 110px;min-height:65vh}.legal-main .eyebrow{margin-bottom:24px}.legal-main h1{font:700 clamp(38px,5vw,62px)/1.1 system-ui,sans-serif;letter-spacing:-.06em;margin-bottom:22px}.legal-main h2{font-size:20px;margin:31px 0 10px}.legal-main p,.legal-main li{color:#c0c9d9;line-height:1.7}.legal-main a{text-decoration:underline}.legal-notice{border-left:3px solid #c9fa55;background:#1a2440;padding:17px 20px;color:#e8f3d2!important}
.order-area{margin-top:8px}.order-selected{min-height:70px;border:2px dashed #cdd5e4;border-radius:10px;padding:10px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}.order-selected.order-right{border-color:#2f915a;background:#f0fbf4}.order-selected.order-wrong{border-color:#cb5a65;background:#fff4f4}.order-hint{font-size:14px;color:#8c97a8}.order-tokens{display:flex;gap:9px;flex-wrap:wrap;margin:20px 0 24px}.word-tile{border:1px solid #c8cee0;background:#fff;border-radius:7px;min-height:43px;padding:7px 12px;font-size:15px;font-weight:700;color:#222c45;box-shadow:0 2px 0 #dfe2e9}.word-tile:hover:not(:disabled){border-color:#684ddb}.word-tile:disabled{opacity:.28}.selected-word{background:#ede8ff;border-color:#8c71e8;opacity:1!important}.order-selected .word-tile:disabled{opacity:1}
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[hidden]{display:none!important}
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/* Paleta de estudio: papel blanco, azul y rojo pastel, con texto AA. */
:root{--paper:#f7fafc;--white:#fff;--ink:#172b43;--muted:#50617b;--blue:#dcebfa;--blue-soft:#e8f3fd;--blue-ink:#285781;--red:#f7e1e2;--red-soft:#fceced;--red-ink:#762c3a;--green:#e3f3e9;--green-ink:#236044;color:var(--ink);background:var(--paper)}
body{background:var(--paper);color:var(--ink)}
button:focus-visible,a:focus-visible{outline-color:var(--blue-ink)}
em{color:var(--blue-ink)}
.site-header,.site-footer{background:var(--white);border-color:#d9e3ed}
.brand,.footer-brand,.site-header nav a.active{color:var(--ink)}
.brand-mark{background:var(--red);color:var(--red-ink)}
.mark-dot,.footer-brand span,.brand-light{color:var(--blue-ink)}
.site-header nav a,.header-date,.site-footer{color:var(--muted)}
.site-header nav a.active:after{background:var(--red-ink)}
.eyebrow,.start-overline,.section-overline,.lesson-card-top,.lesson-card-action{color:var(--blue-ink)}
.live-signal{background:var(--red-ink);box-shadow:0 0 0 5px var(--red)}
.eyebrow-line{background:#b2cce4}
.lead,.lessons-head p,.how-steps p,.history-content,.history-head span{color:var(--muted)}
.game-panel{background:var(--white);color:var(--ink);box-shadow:0 18px 48px #34557716;border:1px solid #d7e3ed}
.panel-top{background:var(--blue-soft);border-bottom-color:#d0e3f4}
.panel-tag,.question-meta,.start-overline{color:var(--blue-ink)}
.panel-count,.start-hint,.context,.question-meta span:last-child,.start-actions>span{color:var(--muted)}
.level-option,.answer,.stage-card,.lesson-example,.review-card{background:var(--white);color:var(--ink);border-color:#d8e4ee}
.level-option:hover,.answer:hover:not(:disabled),.stage-card:not(:disabled):hover{background:var(--blue-soft);border-color:var(--blue-ink)}
.level-option.selected,.answer.selected,.stage-card.selected{background:var(--blue-soft);border-color:var(--blue-ink)}
.level-letter,.stage-number,.answer-letter{background:var(--blue-soft);color:var(--blue-ink)}
.selected .level-letter{background:var(--blue-ink);color:var(--white)}
.level-copy small,.level-arrow,.stage-card small,.stage-card .stage-end{color:var(--muted)}
.selected .level-arrow{color:var(--blue-ink)}
.button-primary,.challenge-card{background:var(--blue);color:var(--ink)}
.button-primary:hover{background:#c8e0f6}
.button-outline{background:var(--white);border-color:#a9c9e3;color:var(--blue-ink)}
.button-outline:hover{background:var(--blue-soft)}
.question-progress{background:var(--blue-soft)}
.question-progress span{background:var(--blue-ink)}
.answer.correct,.order-selected.order-right{border-color:var(--green-ink);background:var(--green)}
.answer.correct .answer-letter{background:var(--green-ink);color:var(--white)}
.answer.incorrect,.order-selected.order-wrong{border-color:var(--red-ink);background:var(--red-soft)}
.answer.incorrect .answer-letter{background:var(--red-ink);color:var(--white)}
.feedback,.lesson-tip{background:var(--blue-soft);border-left-color:var(--blue-ink);color:var(--ink)}
.feedback p,.feedback-tip,.lesson-tip p{color:var(--muted)!important}
.feedback-example,.resume-note{color:var(--blue-ink)!important}
.practice-card{background:var(--red);color:var(--red-ink)}
.practice-card p,.practice-icon{color:var(--red-ink)}
.history-card,.lesson-card{background:var(--white);color:var(--ink);border-color:#d9e4ed;box-shadow:0 5px 20px #3455770b}
.history-item strong,.history-review,.recent-session{color:var(--blue-ink)}
.how-section,.lessons-section{border-top-color:#d9e4ed}
.how-steps>div{border-top-color:#b3cee6}
.how-steps>div>span{color:var(--red-ink)}
.legal-main p,.legal-main li{color:var(--muted)}
.legal-notice{background:var(--blue-soft);border-left-color:var(--red-ink);color:var(--ink)!important}
.lessons-count{border-color:#abc9e1;color:var(--blue-ink);background:var(--blue-soft)}
.lesson-card:hover{border-color:var(--blue-ink)}
.lesson-card-summary{color:var(--muted)}
.back-link,.lesson-example>span,.review-card .review-example{color:var(--blue-ink)}
.lesson-example strong{color:var(--ink)}
.lesson-example small,.lesson-intro,.review-card p,.review-summary{color:var(--muted)}
.review-correct{color:var(--green-ink);background:var(--green)}
.review-incorrect{color:var(--red-ink);background:var(--red-soft)}
.review-card .review-right{color:var(--green-ink)}
.review-card .review-example{background:var(--blue-soft)}
.word-tile{color:var(--ink);border-color:#b4cde2;box-shadow:0 2px 0 #e4edf5}
.word-tile:hover:not(:disabled){border-color:var(--blue-ink)}
.selected-word{background:var(--blue-soft);border-color:var(--blue-ink)}
.alias-field input:focus{outline-color:var(--blue-ink)}
.below-panel{color:var(--muted)}.sparkle{color:var(--blue-ink)}

/* Más ritmo visual: bloques pastel diferenciados y superficies de lectura blancas. */
:root{--paper:#f5f8fc;--blue:#c8ddf5;--blue-soft:#e4effc;--red:#f2cbd0;--red-soft:#fae5e7}
.site-header{background:#eaf3fc;border-bottom:2px solid #c2d9ef}
.site-header nav a.active{color:var(--red-ink)}
.brand-mark{background:var(--red);box-shadow:inset 0 0 0 1px #e8b6be}
.learning-section{background:linear-gradient(125deg,#eaf3fc 0%,#f9fbfd 55%,#fbedee 100%);border:1px solid #dbe7f2;border-radius:22px;margin-block:24px 6px;padding-top:32px}
.panel-top{background:var(--blue);border-bottom-color:#afd0ed}
.button-primary{background:var(--blue);border:1px solid #a7c8e8}
.button-primary:hover{background:#b9d4f1}
.button-outline{background:var(--red-soft);border-color:#e5b9c0;color:var(--red-ink)}
.button-outline:hover{background:var(--red)}
.challenge-card{background:var(--blue);box-shadow:inset 0 0 0 1px #b3cfe9}
.practice-card{background:var(--red);box-shadow:inset 0 0 0 1px #e4b7bf}
.lessons-section{background:linear-gradient(180deg,#f5f8fc,#fff 25%);border-top:3px solid #c8ddf5}
.lesson-group>h3{border-left:5px solid #a6c7e8;padding:8px 0 8px 12px;color:var(--blue-ink)}
.lesson-group:nth-child(even)>h3{border-left-color:#e5aeb7;color:var(--red-ink)}
.lesson-card{border-top:4px solid #b7d3ef}
.lesson-card:nth-child(3n+1){background:var(--blue-soft)}
.lesson-card:nth-child(3n+2){background:var(--red-soft);border-top-color:#e8b9c1}
.lesson-card:nth-child(3n+3){background:#fff;border-top-color:#c1d9ec}
.lesson-card:hover{box-shadow:0 10px 26px #3455771a}
.lessons-count{background:var(--red-soft);border-color:#e4b7bf;color:var(--red-ink)}
.level-option.selected,.count-option.selected{background:var(--blue)}
.lesson-tip{background:var(--blue-soft)}
.feedback{background:var(--blue-soft)}
@media(max-width:600px){.learning-section{margin:12px 10px 0;padding:22px 14px 28px;border-radius:17px}.lessons-section{background:var(--paper)}}

/* Identidad de aprendizaje: azul, turquesa y ámbar; rojo solo para errores. */
:root{--blue:#b6d8f4;--blue-soft:#e1f0fc;--teal:#aee5df;--teal-soft:#e0f5f2;--teal-ink:#185c5c;--amber:#f9db9a;--amber-soft:#fff0ce;--amber-ink:#6c4a13}
.site-header nav a.active,.how-steps>div>span{color:var(--teal-ink)}
.site-header nav a.active:after,.live-signal{background:var(--teal-ink)}
.live-signal{box-shadow:0 0 0 5px var(--teal-soft)}
.brand-mark{background:var(--amber);color:var(--amber-ink);box-shadow:inset 0 0 0 1px #dfbe79}
.learning-section{background:linear-gradient(125deg,#e1f0fc 0%,#f9fbfd 52%,#e0f5f2 100%);border-color:#b9dfe1}
.button-outline{background:var(--teal-soft);border-color:#92cbc6;color:var(--teal-ink)}
.button-outline:hover{background:var(--teal)}
.practice-card{background:var(--teal);color:var(--ink);box-shadow:inset 0 0 0 1px #8fcfc9}
.practice-card p,.practice-icon{color:var(--teal-ink)}
.lesson-group:nth-child(even)>h3{border-left-color:#65bbb3;color:var(--teal-ink)}
.lesson-card:nth-child(3n+2){background:var(--teal-soft);border-top-color:#79c7bf}
.lesson-card:nth-child(3n+3){background:var(--amber-soft);border-top-color:#ebc879}
.lessons-count{background:var(--amber-soft);border-color:#e9c678;color:var(--amber-ink)}
.legal-notice{border-left-color:var(--blue-ink)}

/* Azul británico y dorado: identidad firme con lectura serena. */
:root{--uk-blue:#012169;--uk-blue-hover:#103986;--blue-ink:#193d82;--gold:#e8bb55;--gold-soft:#fff3d8;--gold-ink:#684814;--paper:#f7f9fd;--blue:#d8e5f8;--blue-soft:#edf3fc;--ink:#172b43}
.site-header{background:var(--uk-blue);border-bottom:3px solid var(--gold)}
.site-header .brand,.site-header .brand-light,.site-header nav a,.site-header nav a.active,.site-header .header-date{color:#fff}
.site-header nav a.active:after,.live-signal{background:var(--gold)}
.live-signal{box-shadow:0 0 0 5px #e8bb5540}
.brand-mark{background:var(--gold);color:var(--uk-blue);box-shadow:none}
.site-header .mark-dot{color:var(--gold)}
.learning-section{background:linear-gradient(125deg,#e9f0fb,#fff 58%,#fff5df);border-color:#d9e4f3}
.game-column h1 em,.lessons-head h2 em,.how-section em{color:var(--uk-blue)}
.button-primary{background:var(--uk-blue);border-color:var(--uk-blue);color:#fff}
.button-primary:hover{background:var(--uk-blue-hover);border-color:var(--uk-blue-hover)}
.button-outline{background:var(--gold-soft);border-color:#dec07e;color:var(--gold-ink)}
.button-outline:hover{background:var(--gold)}
.challenge-card{background:var(--uk-blue);color:#fff;box-shadow:0 12px 30px #01216924}
.challenge-card p,.challenge-card h2,.challenge-card .side-label,.challenge-card .side-icon{color:#fff}
.challenge-card .button{background:var(--gold);border-color:var(--gold);color:var(--uk-blue)}
.practice-card{background:#dfe9f9;color:var(--uk-blue);box-shadow:inset 0 0 0 1px #c8d8ef}
.practice-card p,.practice-icon{color:var(--uk-blue)}
.panel-top{background:var(--blue);border-bottom-color:#c6d8f0}
.lesson-group:nth-child(even)>h3{border-left-color:var(--gold);color:var(--uk-blue)}
.lesson-card:nth-child(3n+1){background:#eef4fc;border-top-color:#9ab7e3}
.lesson-card:nth-child(3n+2){background:#fff;border-top-color:#d8e3f4}
.lesson-card:nth-child(3n+3){background:#fff8e9;border-top-color:var(--gold)}
.lessons-count{background:var(--gold-soft);border-color:#dec07e;color:var(--gold-ink)}
.how-steps>div>span{color:var(--gold-ink)}
.lesson-tip{background:var(--gold-soft);border-left-color:var(--gold);color:var(--ink)}
.history-review,.recent-session{color:var(--blue-ink)}

/* Rojo Union Jack en acentos de identidad y acciones señaladas. */
:root{--uk-red:#c8102e;--uk-red-hover:#a50e29;--uk-red-soft:#fff0f2;--uk-red-ink:#9d122c}
.site-header{border-bottom-color:#d6aa2f}
.site-header nav a.active:after{background:#d6aa2f}
.brand-mark{background:var(--gold);color:var(--uk-blue)}
.site-header .mark-dot{color:var(--uk-blue)}

/* Marca AI Teacher: cinco trazos alternos bajo AI, como en el encabezado. */
.teacher-wordmark{display:inline-block;font-weight:800;letter-spacing:-.055em;white-space:nowrap;line-height:1.12}
.teacher-wordmark-ai{position:relative;color:#a1780e!important;display:inline-block;margin-right:.08em}
.teacher-wordmark-ai:after{content:'';position:absolute;left:0;right:0;bottom:-.105em;height:.085em;background:linear-gradient(90deg,#c8102e 0 16%,transparent 16% 21%,#012169 21% 37%,transparent 37% 42%,#c8102e 42% 58%,transparent 58% 63%,#012169 63% 79%,transparent 79% 84%,#c8102e 84%);border-radius:2px}
.teacher-wordmark--nav{font-size:16px;letter-spacing:-.05em}
.site-header .teacher-wordmark--nav .teacher-wordmark-ai{color:#d6aa2f!important}
.site-header .teacher-wordmark--nav .teacher-wordmark-ai:after{content:none}
.teacher-wordmark--hero{display:table}
.site-header .teacher-wordmark--nav .teacher-wordmark-name,.site-header .teacher-wordmark--nav .teacher-wordmark-dot{color:#fff}
.teacher-wordmark--hero .teacher-wordmark-name,.teacher-wordmark--hero .teacher-wordmark-dot{color:#17233b}

/* Marca EnglIA: IA en dorado, a juego con el acento de AI Teacher en la cabecera. */
.site-header .brand-light{color:#d6aa2f}