/* ============ tutareaescolar.com — Outschool Bright (ES) ============ */
:root{
  --primary:#4B01D4; --primary-hover:#3F00B8; --secondary:#FFC61A; --tertiary:#5E5AE6;
  --neutral:#F2F4FF; --surface:#FFFFFF; --on-surface:#262626; --muted:#6B6B6B;
  --border:#E5E7EB; --border-strong:#C9C9D4; --overlay:#F6F7FF; --error:#D92D20;
  --r-none:0px; --r-sm:4px; --r-md:8px; --r-lg:16px; --r-xl:24px; --r-full:9999px;
  --sp-xs:6px; --sp-sm:16px; --sp-md:28px; --sp-lg:48px; --sp-xl:80px; --gutter:24px; --section:96px;
  --font-head:"Poppins",-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-body:"Inter",-apple-system,"Segoe UI",Roboto,sans-serif;
  --max:1200px;
  --shadow:0 2px 8px rgba(75,1,212,.10);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--surface);color:var(--on-surface);font-family:var(--font-body);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:var(--primary)}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:700;margin:0;color:var(--on-surface)}
h1{font-size:clamp(38px,5.2vw,64px);line-height:.98;letter-spacing:-.03em}
h2{font-size:clamp(28px,3.4vw,48px);line-height:1;letter-spacing:-.03em}
h3{font-size:clamp(22px,2.2vw,36px);line-height:1.1;letter-spacing:-.02em}
h4{font-size:20px;line-height:1.2}
p{margin:0 0 var(--sp-sm)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:#fff;padding:10px 14px;border-radius:var(--r-md);z-index:300}
:focus-visible{outline:3px solid var(--tertiary);outline-offset:2px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* banner */
.banner{background:var(--tertiary);color:#fff;font-size:14px;font-weight:500;line-height:1.2;text-align:center;padding:8px 16px}
.banner a{color:#fff;text-decoration:underline}

/* header */
header.site{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.headbar{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-md);padding:16px 0}
.brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-head);font-weight:700;font-size:20px;color:var(--primary);letter-spacing:-.02em}
.brand img{width:36px;height:36px;border-radius:var(--r-md)}
nav.main ul{display:flex;gap:28px;list-style:none;margin:0;padding:0;font-family:var(--font-head);font-size:16px;font-weight:500}
nav.main a{padding:6px 0;color:var(--on-surface)}
nav.main a[aria-current="page"],nav.main a:hover{color:var(--primary)}
.headtools{display:flex;align-items:center;gap:10px}
.icon{width:40px;height:40px;border-radius:var(--r-full);border:1px solid var(--border);background:#fff;display:grid;place-items:center;cursor:pointer;color:var(--primary)}
.navtoggle{display:none}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:12px 28px;border-radius:var(--r-full);background:var(--primary);color:#fff;font-family:var(--font-head);font-size:16px;font-weight:500;border:1px solid transparent;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease;text-align:center}
.btn:hover{background:var(--primary-hover);color:#fff}
.btn.secondary{background:#fff;color:var(--primary);border-color:var(--border-strong)}
.btn.secondary:hover{border-color:var(--primary);color:var(--primary)}
.btn.tertiary{background:transparent;color:var(--on-surface);height:auto;padding:8px 12px;font-size:14px}
.btn.tertiary:hover{color:var(--primary)}
.btn.wide{width:100%}
.chip{display:inline-flex;align-items:center;padding:10px 16px;border-radius:var(--r-full);background:var(--secondary);color:var(--on-surface);font-family:var(--font-head);font-size:14px;font-weight:500;border:1px solid transparent;cursor:pointer}
.chip.ghost{background:#fff;border-color:var(--border);color:var(--on-surface)}
.chip.on{background:var(--primary);color:#fff}
.chips{display:flex;gap:8px;flex-wrap:wrap}

/* hero */
.hero{background:var(--neutral)}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:var(--sp-lg);align-items:center;padding:var(--sp-xl) var(--gutter)}
.hero h1{max-width:16ch;margin-bottom:var(--sp-md)}
.hero p.lead{font-size:18px;line-height:1.55;color:#3d3d3d;max-width:46ch}
.hero .actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:var(--sp-md)}
.hero img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-xl)}
.hero .proof{display:flex;gap:var(--sp-md);margin-top:var(--sp-md);font-size:14px;color:var(--muted);flex-wrap:wrap}
.hero .proof b{color:var(--on-surface)}

/* sections */
section{padding:var(--section) 0}
section.tight{padding:var(--sp-lg) 0}
section.alt{background:var(--neutral)}
section.overlay{background:var(--overlay)}
.sechead{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-md);margin-bottom:var(--sp-lg);flex-wrap:wrap}
.sechead p{color:var(--muted);font-size:16px;margin:8px 0 0}
.grid{display:grid;gap:var(--sp-md)}
.g4{grid-template-columns:repeat(4,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}

/* cards */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:16px}
.card.prominent{background:var(--overlay);border-radius:var(--r-xl);padding:24px;border-color:transparent}
.card h4{margin-bottom:6px}
.card p{color:var(--muted);font-size:14px;line-height:1.5;margin:0 0 12px}
.card .kicker{font-family:var(--font-head);font-size:12px;font-weight:500;letter-spacing:.02em;text-transform:uppercase;color:var(--tertiary);margin:0 0 8px}
.card .price{font-family:var(--font-head);font-weight:700;font-size:20px;color:var(--on-surface)}

.subject{display:block;overflow:hidden;border:1px solid var(--border);border-radius:var(--r-lg);background:#fff}
.subject img{width:100%;aspect-ratio:16/10;object-fit:cover}
.subject .body{padding:16px}
.subject h4{font-size:18px;margin-bottom:4px}
.subject p{color:var(--muted);font-size:14px;margin:0}

/* steps */
.steps{counter-reset:s;display:grid;gap:var(--sp-md);grid-template-columns:repeat(3,1fr)}
.steps .step{position:relative;padding-left:56px}
.steps .step:before{counter-increment:s;content:counter(s);position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;background:var(--secondary);color:var(--on-surface);font-family:var(--font-head);font-weight:700;display:grid;place-items:center}
.steps h4{margin-bottom:6px}
.steps p{color:var(--muted);font-size:14px;margin:0}

/* pricing */
.price-card{border:2px solid var(--border);border-radius:var(--r-xl);padding:24px;background:#fff}
.price-card.featured{border-color:var(--primary);background:var(--neutral)}
.price-card .amount{font-family:var(--font-head);font-weight:700;font-size:44px;letter-spacing:-.03em;line-height:1;margin:8px 0}
.price-card ul{list-style:none;padding:0;margin:16px 0 20px;font-size:14px}
.price-card li{padding-left:24px;position:relative;margin:8px 0;color:#3d3d3d}
.price-card li:before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:700}

/* teachers */
.teacher{display:grid;grid-template-columns:96px 1fr;gap:16px;align-items:center}
.teacher img{width:96px;height:96px;border-radius:50%;object-fit:cover}
.teacher h4{margin-bottom:2px}
.teacher p{color:var(--muted);font-size:14px;margin:0}

/* prose */
.prose{max-width:72ch;font-size:17px;line-height:1.7}
.prose h2{font-size:26px;line-height:1.2;letter-spacing:-.02em;margin:36px 0 12px}
.prose h3{font-size:20px;line-height:1.25;margin:24px 0 8px}
.prose ul,.prose ol{padding-left:22px}
.prose li{margin:8px 0}
.prose table{border-collapse:collapse;width:100%;font-size:15px;margin:20px 0}
.prose th,.prose td{border:1px solid var(--border);padding:12px;text-align:left}
.prose th{background:var(--neutral);font-family:var(--font-head);font-weight:600}
.crumbs{font-size:13px;color:var(--muted);padding-top:16px}
.crumbs ol{list-style:none;display:flex;gap:8px;flex-wrap:wrap;margin:0;padding:0}
.crumbs li+li:before{content:"›";margin-right:8px}

/* forms */
.field{display:block;margin-bottom:var(--sp-sm)}
.field span{display:block;font-family:var(--font-head);font-size:14px;font-weight:500;margin-bottom:6px}
.field input,.field textarea,.field select{width:100%;border:1px solid var(--border);border-radius:var(--r-full);padding:14px 20px;height:48px;font:inherit;font-size:16px;background:#fff;color:var(--on-surface)}
.field textarea{height:auto;min-height:140px;border-radius:var(--r-lg);resize:vertical}
input:focus,textarea:focus,select:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px rgba(75,1,212,.12)}
[aria-invalid="true"]{border-color:var(--error)!important}
.news{background:var(--primary);color:#fff;border-radius:var(--r-xl);padding:var(--sp-lg);display:grid;grid-template-columns:1.1fr .9fr;gap:var(--sp-md);align-items:center}
.news h2{color:#fff}
.news p{color:#e9e2ff;margin:8px 0 0;font-size:15px}
.news input{width:100%;height:48px;border-radius:var(--r-full);border:0;padding:14px 20px;font:inherit;font-size:16px}

/* blog */
.post{border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;background:#fff}
.post img{width:100%;aspect-ratio:16/10;object-fit:cover}
.post .body{padding:16px}
.post .meta{font-family:var(--font-head);font-size:12px;font-weight:500;letter-spacing:.02em;text-transform:uppercase;color:var(--tertiary);margin:0 0 6px}
.post h4{font-size:18px;line-height:1.25;margin-bottom:6px}

/* faq */
.faq details{border-bottom:1px solid var(--border);padding:18px 0}
.faq summary{font-family:var(--font-head);font-weight:600;font-size:17px;cursor:pointer;color:var(--on-surface)}
.faq p{color:var(--muted);margin:10px 0 0;font-size:15px}

/* footer */
footer.site{background:var(--neutral);border-top:1px solid var(--border);padding:var(--sp-lg) 0 var(--sp-md);font-size:14px;color:var(--muted)}
footer.site h4{font-family:var(--font-head);font-size:14px;color:var(--on-surface);margin-bottom:12px}
.fgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:var(--sp-md)}
footer.site ul{list-style:none;margin:0;padding:0}
footer.site li{margin:8px 0}
.legal{border-top:1px solid var(--border);margin-top:var(--sp-md);padding-top:var(--sp-sm);display:flex;justify-content:space-between;gap:var(--sp-sm);flex-wrap:wrap;font-size:13px}

/* misc */
.to-top{position:fixed;right:18px;bottom:18px;width:46px;height:46px;border-radius:50%;border:0;background:var(--primary);color:#fff;cursor:pointer;opacity:0;pointer-events:none;transform:translateY(8px);transition:opacity .25s,transform .25s;z-index:120}
.to-top.show{opacity:1;pointer-events:auto;transform:none}
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
html:not(.js) .reveal,html.js .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}
.empty{padding:var(--sp-lg);text-align:center;color:var(--muted)}

@media(max-width:1024px){.g4{grid-template-columns:repeat(2,1fr)}.headbar{gap:16px}nav.main ul{gap:18px}.fgrid{grid-template-columns:1fr 1fr}}
@media(max-width:860px){
  .g3,.g2{grid-template-columns:1fr}
  .hero .wrap{grid-template-columns:1fr;padding:var(--sp-lg) var(--gutter)}
  .news{grid-template-columns:1fr;padding:var(--sp-md)}
  .steps{grid-template-columns:1fr}
  .navtoggle{display:inline-flex;align-items:center;height:40px;padding:0 14px;border:1px solid var(--border);border-radius:var(--r-full);background:#fff;font-family:var(--font-head);font-size:14px;font-weight:500;color:var(--primary);cursor:pointer}
  nav.main.open{display:flex;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--border);flex-direction:column;padding:var(--sp-md);gap:var(--sp-md);z-index:99}
  header.site .wrap{position:relative}
  section{padding:var(--sp-lg) 0}
}
@media(max-width:560px){.g4{grid-template-columns:1fr}.fgrid{grid-template-columns:1fr}h1{font-size:34px}}