@font-face{font-family:'TJS';src:url('./Bore-Regular.woff2') format('woff2'),url('./Bore-Regular.woff') format('woff');font-display:swap}
@font-face{font-family:'Joko';src:url('./Humanist521BT.woff2') format('woff2');font-display:swap}

:root{
  --bg:#050606;
  --bg-soft:#0b0f0f;
  --bg-card:#0f1212;
  --ink:#f2f2ef;
  --ink-mid:#b4b4ae;
  --ink-dim:#8e8e88;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --pill:rgba(255,255,255,.06);
  --nav-h:84px;
  --font-display:'TJS','Impact',sans-serif;
  --font-body:'Joko','Helvetica Neue',Arial,sans-serif;
  --content-max:1200px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;background:var(--bg)}
body{
  font-family:var(--font-body);
  background:var(--bg);
  color:var(--ink);
  line-height:1.6;
  min-height:100vh;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,textarea,select{font:inherit}
button{border:0;background:none;cursor:pointer}
main{padding-top:var(--nav-h)}
body::before{
  content:"";
  position:fixed;inset:0;pointer-events:none;z-index:0;
  opacity:.02;
  mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 220 220' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:220px 220px;
}
.site-shell{position:relative;z-index:1;opacity:1;transition:opacity .45s ease}
body.home:not(.is-ready) .site-shell{opacity:0}
body.is-loading{overflow:hidden}
body.is-loading .site-shell{opacity:0}
body.is-ready .site-shell{opacity:1}

.container{width:min(var(--content-max),calc(100% - 64px));margin:0 auto}
.container--narrow{width:min(820px,calc(100% - 64px));margin:0 auto}
@media (max-width:720px){
  .container,.container--narrow{width:calc(100% - 40px)}
}

/* Loader */
.intro-loader{
  position:fixed;inset:0;z-index:9999;
  background:#050606;
  display:grid;
  place-items:center;
  opacity:1;visibility:visible;
  overflow:hidden;
  transition:opacity .45s ease, visibility .45s ease;
}
body[data-skip-loader="true"] .intro-loader{display:none!important}
.intro-loader.is-hidden{opacity:0;visibility:hidden}
.intro-loader__video{
  width:100vw;height:100vh;height:100dvh;
  object-fit:cover;
  display:block;
  backface-visibility:hidden;
  transform:translateZ(0);
  will-change:opacity,transform;
  background:#050606;
}
@media (prefers-reduced-motion:reduce){
  .intro-loader{display:none!important}
}

/* Nav */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 32px;
  /* Safe-area: evita que el contenido se meta bajo el notch/isla dinámica cuando viewport-fit=cover está activo */
  padding-left:max(32px, env(safe-area-inset-left));
  padding-right:max(32px, env(safe-area-inset-right));
  background:rgba(5,6,6,.96);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.nav__logo{display:flex;align-items:center}
.nav__logo img{height:31px;width:auto}
.nav__cta,
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;
  padding:0 24px;
  border:1px solid rgba(255,255,255,.18);
  background:var(--ink);
  color:#000;
  font-family:var(--font-body);
  font-size:11px;
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
  transition:transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
}
.nav__cta:hover,.btn-primary:hover{transform:translateY(-1px);background:#fff}
.btn-outline,
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:0 24px;
  border:1px solid rgba(255,255,255,.16);
  color:var(--ink);
  font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  transition:background .18s ease,border-color .18s ease;
}
.btn-outline:hover,.btn-ghost:hover{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.26)}
@media (max-width:720px){
  .nav{padding:0 14px;gap:10px}
  .nav__logo{flex:1 1 auto;min-width:0}
  .nav__logo img{height:22px;max-width:100%}
  .nav__cta{flex:0 1 auto;min-width:0;max-width:46vw;white-space:nowrap;min-height:40px;padding:0 10px;font-size:8.2px;letter-spacing:.05em}
  .btn-primary,.btn-outline,.btn-ghost{min-height:44px;padding:0 16px;font-size:10px}
}

/* Hero */
.hero{
  min-height:calc(100vh - var(--nav-h));
  min-height:calc(100svh - var(--nav-h));
  display:grid;
  place-items:center;
  padding:18px 0 34px;
}
.hero__inner{
  width:min(860px,calc(100% - 32px));
  min-height:calc(100vh - var(--nav-h) - 52px);
  min-height:calc(100svh - var(--nav-h) - 52px);
  margin:0 auto;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:flex-start;
  text-align:center;
}
.hero__media{
  width:min(60vw,648px);
  max-width:648px;
  min-width:336px;
  margin-bottom:10px;
  flex:0 0 auto;
}
.hero__media video,
.hero__media img{
  width:100%;height:auto;display:block;
  object-fit:contain;
  backface-visibility:hidden;
  transform:translateZ(0);
}
.hero__title{
  font-family:var(--font-display);
  font-size:clamp(4.5rem,10.62vw,8.64rem);
  line-height:.78;
  letter-spacing:-.052em;
  text-transform:uppercase;
  text-align:center;
  margin:0 auto;
  max-width:900px;
  text-wrap:balance;
}
.hero__title span{display:block;white-space:nowrap}
.hero__title span:first-child{font-size:.593em}
.hero__title span + span{margin-top:6px;font-size:.90em}
.hero__sub{
  margin-top:14px;
  font-family:var(--font-display);
  font-size:clamp(.9rem,1.2vw,1.12rem);
  line-height:1;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.hero__actions{margin-top:18px}
.hero__micro{display:none}
@media (max-width:960px){
  .hero__media{width:min(56vw,520px)}
}

@media (min-width:721px){
  .hero__inner{width:min(731px,calc(100% - 32px));}
  .hero__media{width:min(56vw,606px);max-width:606px;min-width:314px;margin-bottom:8px}
  .hero__title{font-size:clamp(3.825rem,9.03vw,7.344rem)}
  .hero__sub{margin-top:12px;font-size:clamp(.765rem,1.02vw,.952rem)}
  .hero__actions{margin-top:15px}
  .hero__actions .btn-primary{min-height:44px;padding:0 20px;font-size:10px}
}
@media (max-width:720px){
  .hero{padding:14px 0 28px;overflow-x:clip}
  .hero__inner{width:min(100%, calc(100% - 36px));min-height:calc(100vh - var(--nav-h) - 34px);min-height:calc(100svh - var(--nav-h) - 34px);padding-inline:8px;overflow-x:clip}
  .hero__media{width:min(92vw,504px);margin-bottom:8px}
  .hero__title{font-size:clamp(3.48rem,14.64vw,5.64rem);line-height:.84;letter-spacing:-.044em;max-width:100%;text-wrap:balance;padding-inline:8px}
  .hero__title span{max-width:100%}
  .hero__sub{margin-top:10px;font-size:.82rem;letter-spacing:.09em}
  .hero__actions{margin-top:16px}
  .stack-section__title,.page-hero__title,.content-flow__title,.legal-shell__title,.contact-card__value,.story__quote{max-width:100%;padding-inline:10px;overflow-wrap:normal;word-break:normal;text-wrap:balance}
}

/* Sections */
.story{
  padding:88px 0;
  border-top:1px solid var(--line);
}
.story--tight{padding:66px 0}
.story__quote{
  font-family:var(--font-display);
  font-size:clamp(.82rem,1.82vw,1.76rem);
  line-height:.94;
  letter-spacing:-.022em;
  text-transform:uppercase;
  max-width:980px;
  text-align:center;
  margin-left:auto;
  margin-right:auto;
  text-wrap:balance;
}
.story__sig{
  margin-top:14px;
  font-size:10px;
  line-height:1.5;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--ink-dim);
  text-align:center;
}
.stack-section{
  padding:88px 0;
  border-top:1px solid var(--line);
}
.stack-section__eyebrow{
  margin-bottom:18px;
  font-size:11px;
  line-height:1.3;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--ink-dim);
  text-align:center;
}
.stack-section__title{
  max-width:1120px;
  font-family:var(--font-display);
  font-size:clamp(3.1rem,7.2vw,7rem);
  line-height:.86;
  letter-spacing:-.038em;
  text-transform:uppercase;
  text-align:center;
  margin-left:auto;
  margin-right:auto;
}
.stack-section__body{
  max-width:760px;
  margin-top:28px;
  margin-left:auto;
  margin-right:auto;
  font-size:18px;
  line-height:1.78;
  color:var(--ink-mid);
  text-align:justify;
  text-wrap:pretty;
}
.stack-section__body p + p{margin-top:14px}
.stack-section__chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;justify-content:center}
.stack-section__chip{
  padding:10px 14px;
  border:1px solid var(--line);
  background:var(--pill);
  font-size:11px;
  line-height:1;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--ink);
}
@media (max-width:820px){
  .stack-section{padding:72px 0}
  .stack-section__title{font-size:clamp(3rem,13vw,5.6rem)}
  .stack-section__body{font-size:16px;line-height:1.72}
}

/* Banner */
.banner-bleed{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--bg);
}
.banner-bleed img{
  width:100%;
  height:auto;
  display:block;
  object-fit:contain;
  object-position:center;
}

/* App section */
.app-wrap{
  padding:88px 0 108px;
  border-top:1px solid var(--line);
}
.app-wrap .story__title{margin-bottom:12px}
.app-wrap .story__copy{max-width:720px;margin-bottom:28px}
.app-section{padding:0}
.app-inner{border:1px solid var(--line-strong);background:var(--bg-card);overflow:hidden}
.app-header{
  background:#0b0b0b;color:var(--ink);
  padding:14px 20px;
  display:flex;align-items:center;gap:10px;
  border-bottom:1px solid var(--line);
}
.app-header__dot{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.22)}
.app-header__title{
  margin-left:8px;
  font-size:10px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--ink-dim);
}
.app-body{padding:28px}
.drop-zone{
  border:1px dashed rgba(255,255,255,.24);
  background:#080808;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-height:200px;gap:10px;
  text-align:center;
  padding:40px 20px;
  position:relative;
  transition:border-color .18s ease, background .18s ease;
}
.drop-zone:hover,.drop-zone.drag-over{border-color:rgba(255,255,255,.4);background:#0b0b0b}
.drop-zone__icon{font-size:2.5rem}
.drop-zone__text{
  font-family:var(--font-display);
  font-size:1.65rem;
  line-height:.95;
  text-transform:uppercase;
}
.drop-zone__sub{
  font-size:12px;color:var(--ink-dim);letter-spacing:.03em
}
.drop-zone__link{color:var(--ink);text-decoration:underline}
.drop-zone input[type="file"]{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer;z-index:3;color:transparent;font-size:0;appearance:none;-webkit-appearance:none;border:0;background:transparent}
.drop-zone input[type="file"]::file-selector-button{visibility:hidden;width:0;padding:0;margin:0;border:0}
.drop-zone input[type="file"]::-webkit-file-upload-button{visibility:hidden;width:0;padding:0;margin:0;border:0}
.drop-zone__icon,.drop-zone__text,.drop-zone__sub{pointer-events:none;position:relative;z-index:1}
.mode-selector__label{
  font-size:10px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--ink-dim);
  margin-bottom:10px;
}
.mode-selector__grid{display:flex;flex-wrap:wrap;gap:8px}
.mode-help{
  display:none;
  margin-top:12px;
  padding:12px 14px;
  border:1px solid var(--line);
  background:var(--pill);
  font-size:14px;
  line-height:1.65;
  color:var(--ink-mid);
  text-align:justify;
}
.mode-help strong{
  color:var(--ink);
  font-family:var(--font-display);
  font-weight:400;
  letter-spacing:.03em;
  text-transform:uppercase;
}
.mode-btn{
  display:inline-flex;align-items:center;gap:6px;
  min-height:40px;padding:0 14px;
  border:1px solid var(--line);
  background:#080808;color:var(--ink-mid);
  font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  transition:border-color .18s ease,color .18s ease, background .18s ease;
}
.mode-btn__icon{font-size:12px;line-height:1}
.mode-btn__label{line-height:1;font-family:var(--font-display);font-weight:400;letter-spacing:.035em;text-transform:uppercase}
.mode-btn:hover{border-color:rgba(255,255,255,.28);color:var(--ink)}
.mode-btn.active{background:var(--ink);color:#000;border-color:var(--ink)}
.error-msg{
  align-items:center;gap:12px;padding:14px 18px;
  background:#180b0b;border:1px solid rgba(255,255,255,.14);
  color:#fff;font-size:13px;margin-top:16px;display:none
}
.error-msg.visible{display:flex}
.result-pane{
  margin-top:28px;border:1px solid var(--line-strong);background:#080808;
  min-height:220px;display:none
}
.result-pane.visible{display:block}
.result-pane__header{
  padding:14px 20px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:12px;
}
.result-pane__mode-tag{
  font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink)
}
.result-pane__body{
  padding:32px 36px;
  font-size:17.5px;
  line-height:1.92;
  color:var(--ink-mid);
  text-align:left;
}
.result-pane__body h2,.result-pane__body h3{
  font-family:var(--font-display);
  font-weight:400;
  color:var(--ink);
  text-transform:uppercase;
}
.result-pane__body h2{
  font-size:1.85rem;line-height:.95;letter-spacing:-.02em;
  margin:52px 0 22px;
  padding-bottom:12px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.result-pane__body h2:first-child{margin-top:0}
.result-pane__body h3{
  font-size:1.18rem;line-height:1.1;margin:38px 0 16px;
  color:rgba(255,255,255,.82);
}
.result-pane__body strong{color:var(--ink)}
.result-pane__body p{margin-bottom:24px}
.result-pane__body p+p{margin-top:4px}
.result-pane__body ul{padding-left:22px;margin-bottom:22px}
.result-pane__body li{margin-bottom:12px;line-height:1.85}
.result-pane__body hr{
  border:none;border-top:1px solid rgba(255,255,255,.06);
  margin:36px 0;
}
.result-pane__body blockquote{
  border-left:2px solid rgba(255,255,255,.18);
  padding:10px 0 10px 20px;margin:28px 0;
  color:var(--ink-mid);font-style:italic;
}
.loading-wrap{
  display:none;flex-direction:column;align-items:center;justify-content:center;
  min-height:220px;gap:14px;padding:42px;
}
.loading-wrap.visible{display:flex}
.loading-joko{
  width:64px;height:64px;object-fit:contain;
  animation:jokoFloat 1.2s ease-in-out infinite alternate;
}
@keyframes jokoFloat{
  from{transform:translateY(0) rotate(-6deg)}
  to{transform:translateY(-8px) rotate(6deg)}
}
.loading-text{font-family:var(--font-display);font-size:1.4rem;line-height:.95;text-transform:uppercase}
.loading-sub{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-dim)}
.suggestion-btn{
  font-size:13px;color:var(--ink-mid);border:1px solid var(--line);padding:12px 16px;
  background:#080808;cursor:pointer;transition:border-color .18s ease,color .18s ease;text-align:left;line-height:1.5;
  border-radius:2px
}
.suggestion-btn:hover{border-color:rgba(255,255,255,.28);color:var(--ink)}
.flashcard-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1px;
  background:var(--line-strong);border:1px solid var(--line-strong);margin-top:20px
}
.flashcard{perspective:800px;min-height:180px;cursor:pointer}
.flashcard__inner{position:relative;width:100%;height:100%;min-height:180px;transform-style:preserve-3d;transition:transform .5s cubic-bezier(.4,0,.2,1)}
.flashcard.flipped .flashcard__inner{transform:rotateY(180deg)}
.flashcard__front,.flashcard__back{
  position:absolute;inset:0;backface-visibility:hidden;padding:24px;
  display:flex;flex-direction:column;justify-content:space-between
}
.flashcard__front{background:#0a0a0a}
.flashcard__back{background:#111;transform:rotateY(180deg)}
.flashcard__q{font-size:14px;line-height:1.7;color:var(--ink)}
.flashcard__flip-hint{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-dim)}
.flashcard__back .flashcard__flip-hint{color:var(--ink-dim)}
.flashcard__nivel{position:absolute;top:12px;right:12px;width:8px;height:8px;border-radius:50%}
.nivel-1{background:#7ad38a}.nivel-2{background:#f3cf67}.nivel-3{background:#fff}
.chat-panel{margin-top:28px;border:1px solid var(--line-strong);background:#080808;display:none;flex-direction:column}
.chat-panel.visible{display:flex}
.chat-panel__messages{flex:1;min-height:280px;max-height:min(420px,60vh);overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:14px}
.chat-msg{max-width:85%;padding:18px 22px;font-size:15.5px;line-height:1.88;border:1px solid var(--line)}
.chat-msg--user{align-self:flex-end;background:var(--ink);color:#000;border-color:var(--ink)}
.chat-msg--joko{align-self:flex-start;background:#111}
.chat-msg--joko strong{color:var(--ink)}
.chat-msg--joko h2,.chat-msg--joko h3{font-family:var(--font-display);font-weight:400;color:var(--ink);text-transform:uppercase;margin:24px 0 10px}
.chat-msg--joko h2{font-size:1.25rem;line-height:1}
.chat-msg--joko h3{font-size:1rem;line-height:1.1}
.chat-msg--joko h2:first-child,.chat-msg--joko h3:first-child{margin-top:0}
.chat-msg--joko p{margin-bottom:16px}
.chat-msg--joko p:last-child{margin-bottom:0}
.chat-msg--joko ul{padding-left:20px;margin-bottom:14px}
.chat-msg--joko li{margin-bottom:8px;line-height:1.75}
/* Empty state cuando un modo no devuelve contenido utilizable (flashcards/test vacíos). */
.empty-state{padding:32px 24px;border:1px dashed rgba(255,255,255,.18);background:#0c0c0c;text-align:center;max-width:560px;margin:24px auto}
.empty-state__title{font-family:var(--font-display);font-size:1.05rem;color:var(--ink);text-transform:uppercase;letter-spacing:.04em;margin:0 0 12px}
.empty-state__hint{font-size:14px;line-height:1.6;color:rgba(255,255,255,.62);margin:0}
.empty-state__hint strong{color:var(--ink)}
/* Error diferenciado: borde rojo y prefijo ⚠ para que el usuario NO lo confunda con una respuesta real de Patrick. */
.chat-msg--error{border-color:#ff5a4d!important;background:#1a0a08!important;color:#ff8f85!important}
.chat-msg--error::before{content:"⚠ Error — ";font-family:var(--font-display);font-weight:400;color:#ff5a4d;letter-spacing:.03em;margin-right:4px}
/* Burbuja "Pensando…" con animación sutil para que quede claro que es temporal y no una respuesta real. */
.chat-msg--thinking{opacity:.72;font-style:italic;animation:tjl-thinking 1.4s ease-in-out infinite}
@keyframes tjl-thinking{0%,100%{opacity:.55}50%{opacity:.9}}
.chat-panel__input-row{display:flex;border-top:1px solid var(--line)}
.chat-panel__input{
  flex:1;padding:14px 16px;background:#0b0b0b;color:var(--ink);border:none;outline:none
}
.chat-panel__send{
  background:var(--ink);color:#000;border:none;padding:0 20px;font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase
}
.test-question{border:1px solid var(--line-strong);background:#080808;margin-bottom:1px;padding:24px}
.test-q-text{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:14px;line-height:1.5}
.test-options{display:flex;flex-direction:column;gap:8px}
.test-option{
  padding:12px 14px;border:1px solid var(--line);background:#101010;cursor:pointer;
  font-size:14px;color:var(--ink-mid);text-align:left;transition:all .15s;display:flex;align-items:flex-start;gap:10px
}
.test-option:hover{border-color:rgba(255,255,255,.28);color:var(--ink)}
.test-option.correct{background:#101510;border-color:#5aa069;color:#dff3e1}
.test-option.wrong{background:#170d0d;border-color:#6b4444;color:#ffdede}
.test-option-letter{font-size:11px;letter-spacing:.12em;text-transform:uppercase;font-weight:700;flex-shrink:0;margin-top:2px}
.test-explanation{margin-top:12px;padding:12px 16px;background:#111;border-left:2px solid rgba(255,255,255,.25);font-size:13px;color:var(--ink-mid);line-height:1.7;display:none}
.test-explanation.visible{display:block}
.test-score{padding:24px;text-align:center;background:#080808;color:#fff;border:1px solid var(--line-strong);margin-top:16px;display:none}
.test-score.visible{display:block}
.test-score__num{font-family:var(--font-display);font-size:3.6rem;color:var(--ink);display:block;line-height:.9}
@media (max-width:720px){
  .app-inner{border-left:0;border-right:0}
  .drop-zone{min-height:176px}
  .result-pane{border-left:0;border-right:0}
  .result-pane__body{padding:22px 10px;font-size:16.5px;line-height:1.88;text-align:left}
  .result-pane__body h2{font-size:1.5rem;margin:40px 0 16px}
  .result-pane__body h3{font-size:1.12rem;margin:30px 0 12px}
  .result-pane__body p{margin-bottom:20px}
  .chat-msg{max-width:95%;font-size:15px}
  .chat-panel__messages{padding:12px}
  .suggestion-btn{font-size:12px;padding:10px 12px}
  .flashcard__q{font-size:13.5px}
  .flashcard__front,.flashcard__back{padding:16px}
  .test-question{padding:16px}
  .test-q-text{font-size:14px}
  .test-option{font-size:13px;padding:10px 12px}
}

/* Page hero / content */
.page-hero{
  padding:32px 0 56px;
}
.page-hero__eyebrow{
  margin-bottom:18px;
  font-size:11px;
  line-height:1.3;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--ink-dim);
  text-align:center;
}
.page-hero__title{
  font-family:var(--font-display);
  font-size:clamp(2.8rem,7vw,6.4rem);
  line-height:.87;
  letter-spacing:-.028em;
  text-transform:uppercase;
  max-width:860px;
  margin-left:auto;
  margin-right:auto;
  text-align:center;
}
.page-hero__sub{
  margin-top:20px;
  max-width:680px;
  font-size:18px;
  line-height:1.72;
  color:var(--ink-mid);
  text-align:justify;
  margin-left:auto;
  margin-right:auto;
}
.page-hero__sub--center{text-align:center;max-width:760px}
.content-flow{padding:12px 0 92px}
.content-flow__inner{width:min(820px,calc(100% - 32px));margin:0 auto}
.content-flow__block{
  padding:30px 0;
  border-top:1px solid var(--line);
}
.content-flow__title{
  font-family:var(--font-display);
  font-size:clamp(2rem,5vw,3.5rem);
  line-height:.92;
  letter-spacing:-.024em;
  text-transform:uppercase;
  margin-bottom:14px;
  text-align:center;
}
.content-flow__text{
  font-size:18px;
  line-height:1.75;
  color:var(--ink-mid);
  text-align:justify;
}
.content-flow__quote{
  margin-top:18px;
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--ink-dim);
  text-align:center;
}
.mode-board{
  padding:16px 0 96px;
}
.mode-board__grid{
  width:min(1180px,calc(100% - 32px));
  margin:0 auto;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:1px;
  background:var(--line-strong);
  border:1px solid var(--line-strong);
}
.mode-tile{
  background:#090909;
  padding:24px 22px 20px;
  min-height:210px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.mode-tile__top{display:flex;flex-direction:column;gap:14px}
.mode-tile__emoji{font-size:24px}
.mode-tile__name{
  font-family:var(--font-display);
  font-size:2rem;
  line-height:.94;
  letter-spacing:-.022em;
  text-transform:uppercase;
}
.mode-tile__tagline{
  font-size:11px;
  line-height:1.4;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--ink-dim);
}
.mode-tile__desc{
  font-size:15px;
  line-height:1.7;
  color:var(--ink-mid);
  text-align:justify;
}
.contact-card{
  width:min(820px,calc(100% - 32px));
  margin:0 auto 96px;
  border-top:1px solid var(--line);
}
.contact-card__row{
  padding:28px 0;
  border-bottom:1px solid var(--line);
}
.contact-card__label{
  margin-bottom:10px;
  font-size:11px;
  line-height:1.3;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--ink-dim);
  text-align:center;
}
.contact-card__value{
  font-family:var(--font-display);
  font-size:clamp(2rem,5vw,3.6rem);
  line-height:.94;
  letter-spacing:-.024em;
  text-transform:uppercase;
  text-align:center;
  overflow-wrap:anywhere;
  word-break:break-word;
  max-width:100%;
}
.contact-card__value--email{
  font-size:clamp(1.1rem,3.4vw,2.2rem);
  letter-spacing:-.012em;
}
.contact-card__text{
  margin-top:12px;
  font-size:17px;
  line-height:1.72;
  color:var(--ink-mid);
  text-align:justify;
}
.legal-shell{
  width:min(820px,calc(100% - 32px));
  margin:0 auto;
  padding:24px 0 96px;
}
.legal-shell__eyebrow{
  font-size:11px;
  line-height:1.3;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--ink-dim);
  margin-bottom:18px;
  text-align:center;
}
.legal-shell__title{
  font-family:var(--font-display);
  font-size:clamp(2.4rem,6vw,4.6rem);
  line-height:.9;
  letter-spacing:-.028em;
  text-transform:uppercase;
  text-align:center;
}
.legal-shell__date{
  margin-top:14px;
  font-size:11px;
  line-height:1.3;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--ink-dim);
  text-align:center;
}
.legal-body{
  margin-top:24px;
  border-top:1px solid var(--line);
  padding-top:24px;
}
.legal-body h2{
  font-family:var(--font-display);
  font-size:2rem;
  line-height:.94;
  letter-spacing:-.024em;
  text-transform:uppercase;
  margin:30px 0 12px;
}
.legal-body h3{
  font-size:13px;
  text-transform:uppercase;
  letter-spacing:.12em;
  color:var(--ink);
  margin:24px 0 8px;
}
.legal-body p,.legal-body li{
  font-size:16px;
  line-height:1.8;
  color:var(--ink-mid);
  text-align:justify;
}
.legal-body p + p{margin-top:12px}
.legal-body ul{padding-left:18px;margin:12px 0}
.legal-body a{text-decoration:underline;text-underline-offset:3px}
.legal-body strong{color:var(--ink)}
.err-page{
  min-height:calc(100vh - var(--nav-h));
  min-height:calc(100svh - var(--nav-h));
  display:grid;place-items:center;
  text-align:center;
  padding:32px;
}
.err-page__num{
  font-family:var(--font-display);
  font-size:clamp(6rem,20vw,12rem);
  line-height:.8;
}
.err-page__text{
  max-width:520px;
  margin:18px auto 24px;
  color:var(--ink-mid);
  font-size:18px;
  line-height:1.72;
}

/* Footer */
.footer{
  border-top:1px solid var(--line);
  padding:52px 0 44px;
  /* Safe-area: respeta la barra de gestos en iPhones con notch cuando viewport-fit=cover está activo */
  padding-bottom:max(44px, calc(44px + env(safe-area-inset-bottom)));
  padding-left:env(safe-area-inset-left);
  padding-right:env(safe-area-inset-right);
  background:var(--bg);
}
.footer__inner{
  width:min(900px,calc(100% - 32px));
  margin:0 auto;
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
}
.footer__logo img{height:74px;width:auto}
.footer__dealer{
  margin-top:14px;
  font-size:9px;
  line-height:1.3;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--ink-dim);
}
.footer__nav{
  margin-top:22px;
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:16px 26px;
}
.footer__nav a,.footer__nav span{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--ink-dim);
  transition:color .18s ease;
}
.footer__nav a:hover{color:var(--ink)}
.footer__copy{
  margin-top:22px;
  font-size:10px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:rgba(255,255,255,.38);
}
.footer__ig svg{width:15px;height:15px;display:block}
@media (max-width:720px){
  .footer{padding:44px 0 34px}
  .footer__logo img{height:62px}
  .footer__nav{gap:14px 18px}
  .footer__nav a,.footer__nav span{font-size:10px}
}

/* Utility */
.center{text-align:center}
.sr-only{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0
}

.statement__kicker{
  margin-bottom:18px;
  font-size:11px;
  line-height:1.3;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--ink-dim);
  text-align:center;
}
.statement__title{
  max-width:1120px;
  font-family:var(--font-display);
  font-size:clamp(3rem,7vw,6rem);
  line-height:.88;
  letter-spacing:-.034em;
  text-transform:uppercase;
  text-align:center;
  margin-left:auto;
  margin-right:auto;
}
.statement__body{
  max-width:760px;
  margin:18px auto 0;
  font-size:18px;
  line-height:1.78;
  color:var(--ink-mid);
  text-align:justify;
}
.statement__body--small{max-width:660px}
/* mode-help consolidado arriba */


/* Responsive title polish */
.stack-section__title,
.page-hero__title,
.content-flow__title,
.statement__title,
.story__quote,
.legal-shell__title,
.contact-card__value,
.mode-tile__name{
  text-wrap:balance;
  overflow-wrap:normal;
  word-break:normal;
}
.stack-section__body,
.page-hero__sub,
.content-flow__text,
.contact-card__text,
.legal-body p,
.legal-body li,
.mode-tile__desc,
.statement__body,
.mode-help{
  text-wrap:pretty;
}
@media (max-width:980px){
  .stack-section__title{font-size:clamp(2.8rem,10vw,5.1rem);line-height:.92;max-width:min(100%,14ch);padding-inline:.02em}
  .page-hero__title{font-size:clamp(2.45rem,9vw,4.7rem);line-height:.92;max-width:min(100%,14ch);padding-inline:.02em}
  .content-flow__title{font-size:clamp(1.8rem,7vw,2.9rem);line-height:.96;max-width:min(100%,18ch);margin-left:auto;margin-right:auto;padding-inline:.02em}
  .statement__title{font-size:clamp(2.55rem,9.7vw,4.7rem);line-height:.92;max-width:min(100%,14ch);padding-inline:.02em}
}
@media (max-width:720px){
  .story__quote{font-size:clamp(.9rem,3.9vw,1.38rem);max-width:20ch;line-height:1.05}
  .stack-section__title,.page-hero__title,.content-flow__title,.statement__title,.legal-shell__title{overflow-wrap:normal;word-break:keep-all;hyphens:none}
  .stack-section__body,
  .page-hero__sub,
  .content-flow__text,
  .contact-card__text,
  .legal-body p,
  .legal-body li,
  .statement__body,
  .mode-tile__desc{font-size:15px;line-height:1.7}
}

@media (max-width:720px){
  .stack-section__title{font-size:clamp(2.6rem,11.2vw,4.6rem);line-height:.9;margin-bottom:2px}
  .stack-section__body,.page-hero__sub,.content-flow__text,.contact-card__text,.legal-body p,.legal-body li{padding-inline:16px;line-height:1.82}
  .page-hero__title{font-size:clamp(2.1rem,8.8vw,3.55rem);padding-inline:18px}
  .content-flow__title{font-size:clamp(1.66rem,7.8vw,2.65rem);padding-inline:18px;margin-bottom:18px}
  .story__quote{padding-inline:18px}
  .mode-tile__name{font-size:1.7rem;line-height:.98}
  .legal-shell__title{font-size:clamp(1.86rem,8.2vw,3.15rem);padding-inline:18px}
  .legal-body h2{font-size:1.56rem;line-height:1.02;padding-inline:14px}
}


@media (max-width:720px){
  .stack-section__title,
  .page-hero__title,
  .content-flow__title,
  .statement__title,
  .legal-shell__title,
  .contact-card__value,
  .mode-tile__name,
  .story__quote,
  .hero__title{
    word-break:keep-all;
    overflow-wrap:normal;
    hyphens:none;
  }
  .stack-section__title{font-size:clamp(2.34rem,9.8vw,4.2rem);padding-inline:18px;margin-bottom:8px}
  .statement__title{font-size:clamp(2.24rem,9.3vw,4rem);padding-inline:18px;line-height:.94}
  .contact-card__value{font-size:clamp(1.7rem,7.3vw,3rem);padding-inline:18px;line-height:.98}
  .contact-card__value--email{font-size:clamp(.95rem,4.4vw,1.6rem);letter-spacing:-.008em;line-height:1.05}
  .mode-board__grid,.contact-card,.legal-shell,.content-flow__inner{width:calc(100% - 40px)}
  .mode-tile{padding:22px 20px 18px;min-height:unset}
  .mode-tile__name{font-size:1.48rem;line-height:1.02;letter-spacing:-.018em}
  .mode-tile__desc,.mode-help,.chat-msg,.test-q-text,.test-option{font-size:14px;line-height:1.72}
  .chat-panel__messages{padding:18px 16px}
  .chat-panel__input{padding:14px}
  .app-body{padding:20px 6px}
  .drop-zone{padding:34px 18px}
  .footer__inner{width:calc(100% - 40px)}
}

@media (max-width:720px){
  body.home main > .stack-section:first-of-type .stack-section__title{
    font-size:clamp(1.95rem,8.1vw,3.15rem);
    line-height:.94;
    max-width:11.5ch;
    padding-inline:12px;
    margin-bottom:10px;
  }
}


/* v9 mobile fixes */
html,body{max-width:100%;overflow-x:hidden}
.nav{overflow:hidden}
.stack-section__title--edu .title-mobile,.story__quote .quote-mobile{display:none}
.story__quote .quote-desktop,.story__quote .quote-mobile{display:block}
@media (max-width:720px){
  .nav{padding:0 18px;gap:10px;overflow:clip}
  .nav__logo img{height:23px}
  .nav__cta{flex:0 0 auto;max-width:calc(100vw - 150px);min-width:unset;padding:0 10px;font-size:7px;letter-spacing:.042em;min-height:38px;white-space:nowrap}
  .hero{padding:6px 0 24px}
  .hero__inner{transform:none;min-height:auto;padding-bottom:0}
  .hero__title{font-size:clamp(4.002rem,16.836vw,6.486rem)}
  .hero__actions{margin-top:14px}
  body.home main > .stack-section:first-of-type .stack-section__title{font-size:clamp(1.82rem,7.4vw,2.72rem);line-height:.96;max-width:none;padding-inline:18px}
  .stack-section__title--edu .title-desktop{display:none}
  .stack-section__title--edu .title-mobile{display:block}
  .story__quote{font-size:clamp(.72rem,2.95vw,.94rem);line-height:1.02;max-width:none;padding-inline:22px;letter-spacing:-.012em}
  .story__quote .quote-desktop{display:none}
  .story__quote .quote-mobile{display:block}
}

@media (min-width:721px){
  .hero__inner{transform:translateY(-15%)}
  /* Espaciado original: lo correcto en escritorio ancho (>=1200px). */
  .hero__media{transform:translateY(15%);margin-bottom:clamp(58px,8vw,104px)}
  .story__quote .quote-desktop{display:inline-block;white-space:nowrap}
  .story__quote .quote-mobile{display:none}
}
/* En viewports intermedios (≈800-1100px) el 15% de descenso del vídeo (~80-110px)
   sobrepasa el clamp 8vw → tapaba "SOY PATRICK DEALER". Aquí —y SOLO aquí—
   subimos el margin-bottom lo justo para absorber ese descenso. Desktop ancho y
   móvil se quedan exactamente como estaban. */
@media (min-width:721px) and (max-width:1199px){
  .hero__media{margin-bottom:clamp(96px,11vw,128px)}
}


/* v13 modos architecture */
.mode-btn--stack{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  justify-content:center;
  gap:3px;
  min-height:64px;
  padding:12px 14px;
}
.mode-btn--stack .mode-btn__label{
  line-height:1.02;
  font-family:var(--font-display);
  font-weight:400;
  letter-spacing:.035em;
}
#analyze-btn{
  font-family:var(--font-display);
  font-weight:400;
  letter-spacing:.05em;
  text-transform:uppercase;
}
.mode-btn--stack .mode-btn__sub{
  display:block;
  font-size:9px;
  letter-spacing:.08em;
  line-height:1.35;
  opacity:.72;
}
.mode-btn.is-disabled{
  opacity:.42;
  cursor:not-allowed;
}
.mode-btn.is-disabled:hover{border-color:var(--line);color:var(--ink-mid)}
.mode-help--notice{
  text-align:center;
  font-family:var(--font-display);
  text-transform:uppercase;
  letter-spacing:.06em;
  color:var(--ink);
}
.app-file-meta{
  display:flex;
  flex-direction:column;
  gap:2px;
}
.app-file-meta small{
  font-size:10px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--ink-dim);
}
.mode-board__note{
  width:min(1120px, calc(100vw - 64px));
  margin:0 auto 28px;
  padding:18px 20px;
  border:1px solid var(--line);
  background:#090909;
  color:var(--ink-mid);
  font-size:13px;
  line-height:1.7;
  text-align:justify;
}
.mode-board__note strong{
  color:var(--ink);
  font-family:var(--font-display);
  font-weight:400;
  letter-spacing:.04em;
  text-transform:uppercase;
}
@media (max-width:720px){
  .mode-btn--stack{width:100%; align-items:flex-start; min-height:58px;}
  .mode-board__note{width:calc(100% - 40px); padding:16px 18px; font-size:12px; line-height:1.65;}
}


/* v14 topic selector + mobile title safety */
.tema-selector{
  display:none;
  margin-top:18px;
}
.temas-list{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.tema-chip{
  appearance:none;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);
  color:var(--ink);
  border-radius:999px;
  padding:11px 16px;
  min-height:42px;
  font:inherit;
  font-size:12px;
  letter-spacing:.04em;
  line-height:1.15;
  cursor:pointer;
  transition:border-color .2s ease, background .2s ease, color .2s ease, transform .2s ease;
}
.tema-chip:hover{
  border-color:rgba(255,255,255,.3);
  background:rgba(255,255,255,.07);
}
.tema-chip.active{
  border-color:rgba(255,255,255,.48);
  background:rgba(255,255,255,.12);
  color:#fff;
}
.tema-chip:focus-visible{
  outline:2px solid rgba(255,255,255,.45);
  outline-offset:2px;
}
@media (max-width:720px){
  .stack-section__title,
  .statement__title,
  .page-hero__title,
  .story__quote,
  .mode-tile__name,
  .mode-btn__label{
    overflow-wrap:normal;
    word-break:normal;
    hyphens:none;
  }
  .tema-selector{margin-top:16px}
  .temas-list{gap:8px}
  .tema-chip{font-size:11px;padding:10px 14px;max-width:100%}
}

/* ── Touch devices: kill sticky :hover after tap ─────────────────── */
@media (hover:none){
  .btn-primary:hover,.btn-outline:hover,.btn-ghost:hover,
  .mode-btn:hover,.mode-tile:hover,.suggestion-btn:hover,
  .tema-chip:hover,.nav__link:hover,.nav__cta:hover,
  .flashcard:hover,.test-option:hover{transform:none;filter:none}
  a:hover{text-decoration:inherit}
}

/* ── prefers-reduced-motion: respeto integral ─────────────────────────
   Antes solo el loader respetaba reduced-motion. Ahora también el smooth
   scroll global, transiciones y animaciones. WCAG 2.3.3 + ahorra batería.
*/
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
    scroll-behavior:auto!important;
  }
}

/* ── Keyboard focus visible ─────────────────────────────────────────
   :focus-visible solo aplica cuando el navegador detecta navegación por
   teclado (no por click), así que no rompe la estética para usuarios de
   ratón. Imprescindible para WCAG 2.4.7 (Focus Visible). Outline blanco
   con offset para que destaque sobre fondos oscuros sin chocar con bordes.
*/
*:focus{outline:none}
*:focus-visible{
  outline:2px solid #fff;
  outline-offset:2px;
  border-radius:2px;
}
.flashcard:focus-visible,
.mode-btn:focus-visible,
.tema-chip:focus-visible,
.suggestion-btn:focus-visible{
  outline-offset:3px;
}
.btn-primary:focus-visible,
.nav__cta:focus-visible{
  outline-color:#ff0031;
  outline-offset:3px;
}