/* Sistema visual "Mapia": fuente del sistema, paleta y tokens de forma del brief. */
:root{
  --brand:#1D4ED8;
  --brand-dark:#1E3A8A;
  --brand-soft:#EFF6FF;
  --brand-line:#BFDBFE;
  --ink:#0F172A;
  --ink-soft:#64748B;
  --line:#E2E8F0;
  --canvas:#F8FAFC;
  --white:#FFFFFF;
  --ok:#15803D;
  --ok-soft:#F0FDF4;
  --ok-line:#BBF7D0;
  --warn:#B45309;
  --warn-soft:#FFFBEB;
  --warn-line:#FDE68A;
  --radius:10px;
  --radius-control:8px;
  --radius-pill:999px;
  --shadow:0 1px 3px rgba(15,23,42,.08),0 1px 2px rgba(15,23,42,.04);
  --progress:linear-gradient(90deg,#1D4ED8,#3B82F6);
  --font:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scrollbar-color:var(--ink-soft) var(--canvas)}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--canvas);color:var(--ink);font-family:var(--font);font-size:15px;line-height:1.5;font-weight:400;-webkit-font-smoothing:antialiased}
h1,h2,h3,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--brand);text-underline-offset:.18em;text-decoration-thickness:1px}
::selection{background:var(--brand-line);color:var(--ink)}
:focus-visible{outline:3px solid var(--brand);outline-offset:3px}
[id]{scroll-margin-top:1rem}
h1,h2,h3{text-wrap:balance}
p,dd,li{text-wrap:pretty}

.wrap{width:min(1100px,100% - 3rem);margin-inline:auto}
.skip{position:absolute;left:1rem;top:-4rem;z-index:10;background:var(--brand-dark);color:var(--white);padding:.6rem 1rem;border-radius:var(--radius-control);font-weight:600;text-decoration:none}
.skip:focus{top:1rem}

h1,h2{font-weight:800;color:var(--brand-dark);line-height:1.12;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,4.6vw,3.25rem);line-height:1.08;letter-spacing:-.025em}
h2{font-size:clamp(1.6rem,3vw,2.15rem)}
h3{font-size:17px;font-weight:600;line-height:1.35;color:var(--brand-dark)}
.lead{font-size:17px;line-height:1.6;color:var(--ink-soft);max-width:40rem}

/* Botones */
.btn{display:inline-block;border:1px solid var(--brand);border-radius:var(--radius-control);padding:9px 18px;font:inherit;font-size:14px;font-weight:600;line-height:1.5;text-decoration:none;text-align:center;color:var(--brand);background:var(--white);transition:background-color .15s,border-color .15s,transform .1s}
.btn-primary{background:var(--brand);color:var(--white)}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark)}
.btn-secondary:hover{background:var(--brand-soft)}
.btn:active{transform:translateY(1px)}
.btn-sm{padding:7px 14px}

/* Header */
.site-header{background:var(--white);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;min-height:4rem}
.logo{font-size:22px;font-weight:800;letter-spacing:-.02em;color:var(--brand-dark);text-decoration:none}
.site-nav{display:flex;align-items:center;gap:1.75rem}
.site-nav a:not(.btn){font-size:14px;font-weight:600;color:var(--ink-soft);text-decoration:none;padding:.25rem 0;border-bottom:2px solid transparent}
.site-nav a:not(.btn):hover{color:var(--brand);border-bottom-color:var(--brand)}

/* Secciones */
.section{padding:clamp(3.5rem,7vw,5.5rem) 0}
.section--white{background:var(--white);border-block:1px solid var(--line)}
.section h2{margin-bottom:.9rem}

/* Hero */
.hero{padding:clamp(2.5rem,6vw,4.5rem) 0 clamp(3rem,7vw,5.5rem);overflow-x:clip}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.hero h1{margin-bottom:1.25rem}
.hero-text{font-size:17px;line-height:1.6;max-width:36rem;margin-bottom:1.75rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:1.75rem}
.alpha{max-width:34rem;font-size:14px;line-height:1.55;color:var(--ink-soft);border-top:1px solid var(--line);padding-top:1rem}

/* Chips de estado */
.chip{display:inline-block;border-radius:var(--radius-pill);padding:2px 10px;font-size:11.5px;font-weight:600;line-height:1.5;white-space:nowrap}
.chip-ok{background:var(--ok-soft);color:var(--ok)}
.chip-warn{background:var(--warn-soft);color:var(--warn)}

/* Bitácora */
.log{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.log-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:.25rem .75rem;padding:1rem 1.25rem .75rem}
.log-title{font-size:17px;font-weight:600;color:var(--brand-dark)}
.log-note{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--ink-soft)}
.log-progress{padding:0 1.25rem 1rem}
.log-progress p{font-size:13px;color:var(--ink-soft);margin-bottom:.4rem}
.bar{height:8px;border-radius:var(--radius-pill);background:var(--line);overflow:hidden}
.bar span{display:block;height:100%;width:100%;border-radius:var(--radius-pill);background:var(--progress)}
.log-rows li{display:grid;grid-template-columns:3rem 1fr auto;gap:.2rem 1rem;align-items:start;padding:.8rem 1.25rem;border-top:1px solid var(--line)}
.log-time{font-size:13px;font-weight:600;color:var(--ink-soft);padding-top:.2rem}
.log-step{display:block;font-weight:600;line-height:1.35}
.log-who{display:block;font-size:13px;line-height:1.4;color:var(--ink-soft)}
.log-state{display:flex;flex-direction:column;align-items:flex-end;gap:.15rem;text-align:right;min-width:7.5rem}
.log-detail{font-size:13px;color:var(--ink-soft)}
.log-time,.log-detail{font-variant-numeric:tabular-nums}
.log-foot{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 1.25rem 1.15rem;border-top:1px solid var(--line);background:var(--canvas)}
.log-foot p{font-size:13px;line-height:1.5;color:var(--ink-soft);max-width:20rem}
.stamp{flex:none;display:inline-block;border:3px solid var(--brand);border-radius:var(--radius-control);color:var(--brand);font-weight:800;font-size:1.1rem;letter-spacing:.1em;text-transform:uppercase;padding:.2rem .7rem;transform:rotate(-7deg)}

@keyframes aparece{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes cae{from{opacity:0;transform:rotate(-7deg) scale(1.7)}to{opacity:1;transform:rotate(-7deg) scale(1)}}
.log-rows li{animation:aparece .5s cubic-bezier(.16,1,.3,1) both}
.log-rows li:nth-child(1){animation-delay:.35s}
.log-rows li:nth-child(2){animation-delay:.7s}
.log-rows li:nth-child(3){animation-delay:1.05s}
.log-rows li:nth-child(4){animation-delay:1.4s}
.stamp{animation:cae .3s cubic-bezier(.2,.8,.3,1) 1.9s both}

/* Problema: tres objetos separados, tres tarjetas */
.problem-list{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;margin-top:2.25rem}
.problem-list>div{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.25rem}
.problem-list dt{font-size:17px;font-weight:600;line-height:1.35;color:var(--brand-dark);margin-bottom:.4rem}
.problem-list dd{color:var(--ink-soft)}

/* Cómo funciona */
.steps{margin-top:2.25rem;border-bottom:1px solid var(--line);counter-reset:paso}
.steps li{counter-increment:paso;display:grid;grid-template-columns:2.5rem 1fr;gap:1.25rem;padding:1.4rem 0;border-top:1px solid var(--line)}
.steps li::before{content:counter(paso);display:grid;place-items:center;width:2.5rem;height:2.5rem;border-radius:var(--radius-pill);background:var(--brand-soft);border:1px solid var(--brand-line);color:var(--brand-dark);font-size:17px;font-weight:800}
.steps h3{margin-bottom:.3rem}
.steps p{color:var(--ink-soft);max-width:42rem}
.cert-note{margin-top:1.75rem;max-width:42rem;background:var(--brand-soft);border:1px solid var(--brand-line);border-radius:var(--radius);padding:1rem 1.25rem}

/* Para quién */
.audience{display:grid;grid-template-columns:1fr 1fr;gap:0 3rem;margin-top:2.25rem}
.audience li{border-top:1px solid var(--line);padding:1.25rem 0 1.5rem}
.audience h3{margin-bottom:.3rem}
.audience p{color:var(--ink-soft)}
.audience-close{margin-top:1.25rem;max-width:42rem}

/* Preguntas: un solo contenedor */
.faq{margin-top:2rem;max-width:46rem;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.faq details+details{border-top:1px solid var(--line)}
.faq summary{display:flex;justify-content:space-between;align-items:flex-start;gap:1.25rem;cursor:pointer;list-style:none;padding:1rem 1.25rem;font-size:15px;font-weight:600;line-height:1.4}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;font-size:1.4rem;line-height:1;font-weight:400;color:var(--brand);margin-top:-.1rem}
.faq details[open] summary::after{content:"\2212"}
.faq summary:hover{background:var(--brand-soft)}
.faq summary:focus-visible{outline-offset:-3px}
.faq details[open] summary{color:var(--brand-dark)}
.faq details p{padding:0 3rem 1.25rem 1.25rem;color:var(--ink-soft)}

/* Contacto */
.demo-block{background:var(--brand-soft);border-block:1px solid var(--brand-line)}
.demo-block h2{margin-bottom:1rem}
.demo-block p{font-size:17px;line-height:1.6;max-width:38rem;margin-bottom:1.75rem}
.demo-form{display:grid;gap:1rem;max-width:38rem;background:var(--white);border:1px solid var(--brand-line);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.5rem}
.demo-form label{display:grid;gap:.35rem;font-size:14px;font-weight:600;color:var(--ink)}
.demo-form .opt{font-weight:400;color:var(--ink-soft)}
.demo-form input,.demo-form textarea{width:100%;font:inherit;font-size:16px;font-weight:400;color:var(--ink);background:var(--white);border:1px solid var(--ink-soft);border-radius:var(--radius-control);padding:.6rem .75rem}
.demo-form textarea{resize:vertical}
.demo-form input:focus-visible,.demo-form textarea:focus-visible{outline:2px solid var(--brand);outline-offset:1px;border-color:var(--brand)}
.demo-block .demo-form p.form-note{font-size:13px;line-height:1.5;color:var(--ink-soft);margin:0}
.demo-form .btn{justify-self:start}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
@media (min-width:900px){.demo-block .wrap{display:grid;grid-template-columns:1fr 1fr;gap:1rem 4rem;align-items:start}.demo-block h2{font-size:clamp(2rem,3.6vw,2.6rem);margin:0}.demo-block .wrap>p,.demo-form{grid-column:2}.demo-block .wrap>p{margin-top:.35rem}}

/* Footer */
.site-footer{background:var(--white);border-top:1px solid var(--line);color:var(--ink-soft);font-size:14px;padding:1.5rem 0}
.site-footer p{display:flex;flex-wrap:wrap;gap:.25rem 1.25rem}
.site-footer strong{color:var(--brand-dark);font-weight:800}

/* Páginas internas (privacidad y 404) */
.page{padding:clamp(2.5rem,6vw,4.5rem) 0 clamp(3rem,7vw,5rem)}
.page h1{margin-bottom:1.5rem}
.page h2{font-size:1.25rem;margin:2.25rem 0 .6rem;letter-spacing:-.015em}
.page p,.page ul{max-width:42rem;margin-bottom:1rem}
.page ul{list-style:disc;padding-left:1.4rem}
.page li{margin-bottom:.4rem}
.draft-box{max-width:42rem;border:1px solid var(--warn-line);background:var(--warn-soft);color:var(--warn);border-radius:var(--radius);padding:1rem 1.25rem;margin-bottom:2rem;font-weight:600}
.page-404{min-height:50vh}

/* Responsive */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr}
  .problem-list{grid-template-columns:1fr}
  .audience{grid-template-columns:1fr}
}
@media (max-width:700px){
  .site-nav a:not(.btn){display:none}
}
@media (max-width:520px){
  .wrap{width:min(1100px,100% - 2.5rem)}
  .steps li{gap:.9rem}
  .log-rows li{grid-template-columns:1fr;gap:.2rem}
  .log-state{flex-direction:row;align-items:center;flex-wrap:wrap;gap:.5rem;text-align:left;min-width:0}
  .log-foot{flex-direction:column;align-items:flex-start}
  .hero-actions .btn,.demo-block .btn{width:100%}
  .faq details p{padding-right:1.25rem}
}

@media (prefers-reduced-motion:reduce){
  .log-rows li,.stamp{animation:none}
  .btn{transition:none}
  .btn:active{transform:none}
}