/* Creaflow — páginas informativas: cómo se estudia, el estudio y glosario. Prefijo s-.
   Usa los tokens y ayudantes de site.css (.wrap .bleed .tile .btn .eyebrow .tc .ticks .reveal). */

@keyframes s-sweep{from{transform:translateX(-100%)}to{transform:translateX(0)}}
@keyframes s-drift{from{transform:scale(1.04)}to{transform:scale(1.1)}}

.s-sec{padding-block:clamp(44px,6.5vw,88px) 0}
.s-lead{max-width:56ch;color:var(--muted);font-size:clamp(1.0625rem,1rem + .3vw,1.2rem);line-height:1.55}
html:not(.js) .s-chatbtn{display:none}

/* ============ /como-se-estudia ============ */
.s-hero{padding-block:clamp(28px,5vw,64px) 0}
.s-hero__grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:clamp(24px,4.5vw,64px);align-items:end}
.s-hero__text h1{max-width:15ch;margin:14px 0 20px}
.s-hero__links{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}

.s-nums{padding:clamp(18px,2.4vw,30px)}
.s-nums__bar{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 16px;font:500 .8125rem/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted-d)}
.s-nums__bar .rec-dot{margin-right:6px}
.s-nums__list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));margin-top:14px}
.s-nums__list li{padding:20px 0 18px;border-top:1px solid var(--line-d)}
.s-nums__list li:nth-child(odd){padding-right:14px;border-right:1px solid var(--line-d)}
.s-nums__list li:nth-child(even){padding-left:clamp(14px,2vw,24px)}
.s-num{display:block;font:500 clamp(2.3rem,1.3rem + 3.6vw,4.2rem)/1 var(--mono);letter-spacing:-.03em;color:var(--paper);font-variant-numeric:tabular-nums}
.s-num small{font-size:.34em;letter-spacing:0;color:var(--teal-l);white-space:nowrap}
.s-nums__label{display:block;margin-top:10px;color:var(--muted-d);font-size:.9375rem;line-height:1.35}
.s-nums__note{margin-top:4px;padding-top:14px;border-top:1px solid var(--line-d);color:var(--muted-d);font-size:.875rem;line-height:1.45}
.s-nums__ticks{margin-top:16px;color:var(--paper)}

/* semana tipo */
.s-week{margin-top:clamp(44px,6vw,80px);padding-bottom:clamp(44px,6.5vw,88px);background:var(--tile)}
.s-week__head{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:16px clamp(24px,5vw,72px);align-items:end}
.s-week__head h2{margin-top:12px;max-width:16ch}
.s-tracks{margin-top:clamp(28px,4vw,48px);border-bottom:1px solid var(--line)}
.s-track{display:grid;grid-template-columns:minmax(0,.36fr) minmax(0,1fr);gap:10px clamp(20px,3vw,40px);align-items:center;padding:20px 0;border-top:1px solid var(--line)}
.s-track__tag{display:inline-block;margin-bottom:6px;padding:2px 10px;border-radius:var(--r-pill);background:var(--ink);color:var(--paper);font-size:.8125rem}
.s-track__name{font-weight:600;font-size:1.0625rem;line-height:1.3}
.s-track__name a{color:var(--ink);text-decoration-color:var(--teal-d)}
.s-track__name a:hover{color:var(--teal-d)}
.s-track__meta{margin-top:4px;color:var(--muted);font-size:.9375rem}
.s-strip{position:relative;display:grid;grid-template-columns:repeat(7,minmax(0,1fr));overflow:hidden;border-radius:var(--r-s);background:var(--paper);border:1px solid var(--line)}
.s-strip::after{content:"";position:absolute;inset:0;width:100%;pointer-events:none;background:linear-gradient(var(--rec),var(--rec)) right top/2px 100% no-repeat;transform:translateX(-72%);animation:s-sweep 18s linear infinite}
.s-cell{position:relative;display:flex;flex-direction:column;justify-content:flex-end;gap:6px;min-height:76px;padding:6px 4px 6px;border-left:1px dashed var(--line)}
.s-cell:first-child{border-left:0}
.s-cell::before{content:attr(data-d);position:absolute;top:6px;left:8px;font:500 .8125rem/1 var(--mono);color:var(--muted)}
.s-blk{display:flex;align-items:center;justify-content:center;height:34px;border-radius:7px;background:var(--teal);color:var(--ink);font:500 .8125rem/1 var(--mono)}
.s-notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,3vw,40px);margin-top:clamp(24px,3.5vw,40px)}
.s-notes li{display:grid;grid-template-columns:auto minmax(0,1fr);gap:12px;align-items:start}
.s-notes .tc{color:var(--teal-d);font-size:.875rem;padding-top:.15em}
.s-notes p{color:var(--ink);font-size:.9688rem;line-height:1.55}

/* necesitas / no incluye */
.s-needs{display:grid;grid-template-columns:minmax(0,.78fr) minmax(0,1.22fr);gap:clamp(24px,4vw,64px);align-items:stretch}
.s-needs__photo{position:relative;min-height:420px;overflow:hidden;border-radius:var(--r);background:var(--night-2);box-shadow:var(--shadow)}
.s-needs__photo img{position:absolute;inset:0;width:100%;height:100%;max-width:none;object-fit:cover;object-position:46% 50%}
.s-needs__body{display:grid;gap:clamp(24px,3vw,40px);align-content:start}
.s-needs__body h2{margin:12px 0 8px}
.s-ruled{counter-reset:s-r;margin-top:10px}
.s-ruled li{counter-increment:s-r;display:grid;grid-template-columns:2.4rem minmax(0,1fr);gap:8px;padding:16px 0;border-top:1px solid var(--line);line-height:1.55}
.s-ruled li:last-child{border-bottom:1px solid var(--line)}
.s-ruled li::before{content:counter(s-r,decimal-leading-zero);padding-top:.2em;font:500 .8125rem/1.4 var(--mono);letter-spacing:.04em;color:var(--teal-d)}
.s-not{padding:clamp(20px,2.8vw,34px)}
.s-not h2{margin:10px 0 6px;font-size:clamp(1.5rem,1.1rem + 1.3vw,2.1rem)}
.s-not__list{margin-top:12px}
.s-not__list li{position:relative;padding:12px 0 12px 30px;border-top:1px solid var(--line-d);color:var(--paper);line-height:1.5}
.s-not__list li::before{content:"";position:absolute;left:0;top:1.35em;width:14px;height:2px;border-radius:2px;background:var(--rec)}

/* preguntas */
.s-sec--faq{padding-bottom:0}
.s-faq{display:grid;grid-template-columns:minmax(0,.7fr) minmax(0,1.3fr);gap:clamp(24px,5vw,80px);align-items:start}
.s-faq__side{position:sticky;top:calc(var(--header-h) + 24px)}
.s-faq__side h2{margin:12px 0 16px;font-size:clamp(1.6rem,1.1rem + 1.8vw,2.5rem)}
.s-faq__ask{margin-bottom:14px;color:var(--muted)}
.s-faq__mail{margin-top:14px;overflow-wrap:anywhere}
.s-q{border-top:1px solid var(--line)}
.s-q:last-child{border-bottom:1px solid var(--line)}
.s-q summary{display:grid;grid-template-columns:auto minmax(0,1fr) 22px;gap:14px;align-items:baseline;min-height:56px;padding:18px 0;list-style:none;cursor:pointer;font-weight:600;font-size:1.125rem;line-height:1.35}
.s-q summary::-webkit-details-marker{display:none}
.s-q summary .tc{color:var(--teal-d);font-size:.8125rem}
.s-q summary::after{content:"";align-self:center;width:14px;height:14px;justify-self:end;background:
  linear-gradient(var(--ink),var(--ink)) center/100% 2px no-repeat,
  linear-gradient(var(--ink),var(--ink)) center/2px 100% no-repeat;transition:transform .25s var(--ease)}
.s-q[open] summary::after{transform:rotate(45deg)}
.s-q summary:hover .s-q__t{color:var(--teal-d)}
.s-q__a{max-width:64ch;padding:0 0 22px calc(2.6rem + 14px)}
.s-q__a p+p{margin-top:.8em}
.s-q__a p{line-height:1.6}

.s-sec--end{padding-bottom:0}
.s-end{display:grid;gap:10px;padding:clamp(24px,3.4vw,44px)}
.s-end h2{font-size:clamp(1.6rem,1.1rem + 1.8vw,2.5rem);max-width:20ch}
.s-end p{max-width:56ch;color:var(--ink)}
.s-end__links{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}

/* ============ /el-estudio ============ */
.s-eh{display:flex;align-items:flex-end;min-height:clamp(480px,68vh,680px);overflow:hidden;background:var(--night);color:var(--paper)}
.s-eh__img{position:absolute;inset:0;width:100%;height:100%;max-width:none;object-fit:cover;object-position:50% 45%;animation:s-drift 24s ease-in-out infinite alternate}
.s-eh::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(10,26,22,.92) 0,rgba(10,26,22,.82) 48%,rgba(10,26,22,.64) 100%)}
.s-eh__in{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px;padding-block:clamp(40px,6vw,80px)}
.s-eh__text{max-width:680px}
.s-eh .eyebrow{color:var(--teal-l)}
.s-eh h1{margin:16px 0 20px;font-size:clamp(2.2rem,1.2rem + 4.2vw,4.2rem)}
.s-eh__lead{max-width:52ch;color:var(--paper);font-size:clamp(1.0625rem,1rem + .3vw,1.25rem);line-height:1.55}
.s-eh__tc{display:inline-flex;align-items:center;gap:10px;padding:8px 14px;border:1px solid var(--line-d);border-radius:var(--r-pill);background:rgba(10,26,22,.7);color:var(--teal-l);font-size:1.0625rem}

.s-two{display:grid;grid-template-columns:minmax(0,.7fr) minmax(0,1.3fr);gap:clamp(24px,5vw,80px);align-items:start}
.s-two__head{position:sticky;top:calc(var(--header-h) + 24px)}
.s-two__head h2{margin-top:12px;max-width:12ch}
.s-rows li{display:grid;grid-template-columns:3rem minmax(0,1fr);gap:8px 12px;padding:26px 0;border-top:1px solid var(--line)}
.s-rows li:last-child{border-bottom:1px solid var(--line)}
.s-rows .tc{padding-top:.5em;color:var(--teal-d);font-size:.875rem}
.s-rows h3{margin-bottom:8px;font-size:clamp(1.4rem,1.1rem + 1.2vw,2rem)}
.s-rows p{max-width:56ch;color:var(--muted);font-size:1.0625rem;line-height:1.6}

.s-make{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(28px,5vw,80px);align-items:start}
.s-make h2{margin-top:12px;max-width:16ch}
.s-steps{position:relative;margin-top:clamp(24px,3vw,40px)}
.s-steps li{position:relative;padding:0 0 clamp(26px,3vw,38px) 44px}
.s-steps li::before{content:"";position:absolute;left:0;top:.35em;width:14px;height:14px;border-radius:50%;background:var(--paper);border:3px solid var(--teal-d)}
.s-steps li::after{content:"";position:absolute;left:6px;top:calc(.35em + 14px);bottom:-.35em;width:2px;background:var(--line)}
.s-steps li:last-child{padding-bottom:0}
.s-steps li:last-child::after{display:none}
.s-steps__n{display:block;margin-bottom:6px;color:var(--teal-d);font-size:.8125rem;letter-spacing:.06em}
.s-steps h3{margin-bottom:6px}
.s-steps p{max-width:54ch;color:var(--muted);line-height:1.6}
.s-make__sum{margin-top:clamp(24px,3vw,36px);padding-top:18px;border-top:1px solid var(--line);color:var(--ink)}
.s-pics{display:grid;gap:18px;align-content:start}
.s-pic{max-width:440px}
.s-pic--b{justify-self:end;max-width:380px}
.s-pic img{display:block;width:100%;aspect-ratio:4/3;max-width:none;object-fit:cover;border-radius:var(--r);box-shadow:var(--shadow)}
.s-pic figcaption{margin-top:8px;color:var(--muted);font-size:.875rem;line-height:1.45}

.s-contact{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);gap:14px}
.s-contact__main{display:grid;gap:14px;align-content:start;padding:clamp(24px,3.4vw,44px)}
.s-contact__badge{display:inline-flex;justify-self:start;padding:6px;border-radius:50%;background:var(--paper)}
.s-contact__badge img{display:block;width:56px;height:56px}
.s-contact__main h2{font-size:clamp(1.6rem,1.1rem + 1.8vw,2.5rem);max-width:18ch}
.s-contact__main p{max-width:50ch;color:var(--paper);font-size:1.0625rem}
.s-contact__btns{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.s-contact__btns .btn{overflow-wrap:anywhere}
.s-contact__links ul{margin-top:12px}
.s-contact__links li+li{border-top:1px solid var(--line)}
.s-contact__links a{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px;color:var(--ink);font-weight:500;text-decoration:none}
.s-contact__links a::after{content:"→";color:var(--muted)}
.s-contact__links a:hover{color:var(--teal-d)}

.s-sec--id{padding-bottom:0}
.s-id{max-width:70ch}
.s-id h2{margin:10px 0 14px;font-size:clamp(1.4rem,1.1rem + 1vw,1.9rem)}
.s-id p{color:var(--muted);line-height:1.65}
.s-id p+p{margin-top:.8em}
.s-id a{overflow-wrap:anywhere}

/* ============ /glosario ============ */
.s-gh{padding-block:clamp(28px,5vw,64px) clamp(24px,3.5vw,44px)}
.s-gh__grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:16px clamp(24px,5vw,72px);align-items:end}
.s-gh h1{margin-top:14px;max-width:11ch}
.s-gl{display:grid;grid-template-columns:64px minmax(0,1fr);gap:clamp(16px,3vw,48px);align-items:start;padding-top:8px}
.s-rail{position:sticky;top:calc(var(--header-h) + 20px);display:flex;flex-direction:column;gap:2px;max-height:calc(100vh - var(--header-h) - 40px);overflow-y:auto;padding:6px;border-radius:var(--r);background:var(--tile)}
.s-rail a{display:flex;align-items:center;justify-content:center;min-height:38px;border-radius:var(--r-s);color:var(--ink);font:500 1rem/1 var(--mono);text-decoration:none;transition:background-color .2s,color .2s}
.s-rail a:hover{background:var(--surface);color:var(--teal-d)}
.s-rail a[aria-current="true"]{background:var(--ink);color:var(--paper)}
.s-dl{columns:2;column-gap:clamp(32px,5vw,80px)}
.s-letter{padding-bottom:8px}
.s-letter__l{display:flex;align-items:center;gap:14px;margin:6px 0 4px;font-size:1.9rem;line-height:1;font-weight:500;letter-spacing:0;color:var(--teal-d);break-after:avoid}
.s-letter__l::after{content:"";flex:1;height:1px;background:var(--line)}
.s-term{break-inside:avoid;padding:16px 0 18px;border-top:1px solid var(--line)}
.s-letter .s-term:first-child{border-top:0}
.s-term dt{font-weight:600;font-size:1.1875rem;line-height:1.25;letter-spacing:-.01em}
.s-term dd{margin:8px 0 0}
.s-term dd p{color:var(--muted);line-height:1.6;font-size:1rem}
.s-term__more{margin-top:10px}
.s-term__more a{font-size:.9375rem;line-height:1.35}
.s-term__more a::after{margin-left:.2em}
.s-term:target{scroll-margin-top:calc(var(--header-h) + 20px)}
.s-term:target dt{box-shadow:inset 3px 0 0 var(--rec);padding-left:12px;margin-left:-12px}

/* ============ adaptación ============ */
@media (max-width:1100px){
  .s-needs{grid-template-columns:minmax(0,.6fr) minmax(0,1.4fr)}
  .s-notes{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:900px){
  .s-hero__grid,.s-week__head,.s-needs,.s-faq,.s-two,.s-make,.s-contact,.s-gh__grid{grid-template-columns:minmax(0,1fr)}
  .s-hero__text h1{max-width:18ch}
  .s-track{grid-template-columns:minmax(0,1fr)}
  .s-needs__photo{min-height:0;aspect-ratio:16/10}
  .s-faq__side,.s-two__head{position:static}
  .s-q__a{padding-left:0}
  .s-pics{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .s-pic,.s-pic--b{max-width:none;justify-self:stretch}
  .s-eh::before{background:rgba(10,26,22,.8)}
  .s-gl{grid-template-columns:minmax(0,1fr);gap:8px}
  .s-rail{top:var(--header-h);z-index:5;flex-direction:row;gap:2px;max-height:none;overflow-x:auto;overflow-y:hidden;margin-inline:calc(var(--gutter) * -1);padding:6px var(--gutter);border-radius:0;background:rgba(223,233,228,.96);-webkit-overflow-scrolling:touch}
  .s-rail a{flex:0 0 44px;min-height:44px}
  .s-dl{columns:1}
}
@media (max-width:560px){
  .s-pics{grid-template-columns:minmax(0,1fr)}
  .s-cell{min-height:70px;padding-inline:2px}
  .s-cell::before{left:5px}
  .s-blk{height:30px;border-radius:6px;font-size:.75rem}
  .s-q summary{grid-template-columns:auto minmax(0,1fr) 18px;gap:10px}
  .s-contact__btns .btn,.s-end__links .btn,.s-hero__links .btn{width:100%}
}

@media (prefers-reduced-motion:reduce){
  .s-strip::after{animation:none}
  .s-eh__img{animation:none}
}
@media print{
  .s-strip::after{display:none}
  .s-rail,.s-faq__side .btn{display:none}
  .s-dl{columns:1}
  .s-q__a{display:block}
}