/* ============================================================
   BioHub3D — hoja de estilos única
   Paleta tomada del logotipo real: gris grafito + hoja verde
   ============================================================ */

:root{
  --navy-900:#1E221F;
  --navy-800:#2B302C;
  --navy-700:#3B423D;
  --navy-500:#5B645D;
  --leaf-600:#557D14;
  --leaf-500:#6E9E22;
  --leaf-400:#93C731;
  --leaf-050:#EFF6E2;
  --ink:#2E3130;
  --body:#4F5653;
  --muted:#79817C;
  --line:#E3E7E3;
  --line-soft:#EEF1ED;
  --paper:#FFFFFF;
  --paper-2:#F6F8F4;
  --amber-600:#8A6410;
  --amber-050:#FAF2DF;

  --radius:14px;
  --radius-sm:9px;
  --shadow-sm:0 1px 2px rgba(30,34,31,.06), 0 6px 18px -14px rgba(30,34,31,.32);
  --shadow-md:0 2px 4px rgba(30,34,31,.06), 0 18px 40px -26px rgba(30,34,31,.4);
  --maxw:1120px;
  --font:"Manrope", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono:"JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.65;
  color:var(--body);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;height:auto;display:block}
a{color:var(--leaf-600);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:3px solid var(--leaf-400);outline-offset:2px;border-radius:4px}

h1,h2,h3,h4{
  font-family:var(--font);
  color:var(--ink);
  margin:0;
  letter-spacing:-.022em;
  text-wrap:balance;
  line-height:1.14;
}
h1{font-size:clamp(2.15rem,5.4vw,3.5rem);font-weight:800}
h2{font-size:clamp(1.6rem,3.4vw,2.3rem);font-weight:800}
h3{font-size:1.16rem;font-weight:700;line-height:1.3}
h4{font-size:1rem;font-weight:700}
p{margin:0;max-width:68ch}

.eyebrow{
  font-family:var(--mono);
  font-size:.7rem;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--leaf-600);
  margin:0;
}
.eyebrow.on-dark{color:var(--leaf-400)}

.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}
.stack{display:flex;flex-direction:column;gap:18px}
.stack-lg{display:flex;flex-direction:column;gap:34px}
.lead{font-size:1.14rem;color:var(--body);max-width:62ch}
.small{font-size:.92rem}
.muted{color:var(--muted)}
.center{text-align:center}
section{padding:76px 0}
section.tight{padding:52px 0}
.alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* --- Motivo "líneas de capa": textura propia de la impresión 3D --- */
.layers{
  background-image:repeating-linear-gradient(
    180deg,
    rgba(255,255,255,.055) 0px,
    rgba(255,255,255,.055) 1px,
    transparent 1px,
    transparent 7px
  );
}

/* ================= Barra superior ================= */
.topbar{
  background:var(--navy-900);
  color:#C9CFC6;
  font-size:.82rem;
}
.topbar .wrap{
  display:flex;flex-wrap:wrap;gap:4px 20px;
  align-items:center;justify-content:center;text-align:center;
  padding-top:8px;padding-bottom:8px;
}
.topbar a{color:#DFE5DA}
.topbar strong{color:#fff;font-weight:700}
@media (max-width:700px){
  .topbar .wrap{justify-content:center}
  .topbar .wrap > span:first-child{display:none}
}

/* ================= Cabecera ================= */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;height:70px;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-logo{height:34px;width:auto;display:block}
.brand-name{
  font-weight:800;font-size:1.16rem;color:var(--ink);letter-spacing:-.03em;
}
.brand-name b{color:var(--leaf-600)}
.footer-brand .brand-logo{height:44px}
@media (max-width:420px){.brand-logo{height:28px}}

.nav{display:flex;align-items:center;gap:4px}
.nav a{
  color:var(--body);font-weight:600;font-size:.94rem;
  padding:8px 12px;border-radius:8px;text-decoration:none;
  transition:background .15s ease,color .15s ease;
}
.nav a:hover{background:var(--paper-2);color:var(--ink);text-decoration:none}
.nav a[aria-current="page"]{color:var(--leaf-600);background:var(--leaf-050)}
/* el CTA del menú manda sobre las reglas de .nav a */
.nav a.btn.btn-primary,
.nav a.btn.btn-primary:hover,
.nav a.btn.btn-primary:focus{color:#fff;background:var(--leaf-600)}
.nav a.btn.btn-primary:hover{background:var(--leaf-500)}

.nav-toggle{
  display:none;background:none;border:1px solid var(--line);
  border-radius:9px;padding:9px 11px;cursor:pointer;color:var(--ink);
}
.nav-toggle span{display:block;width:19px;height:2px;background:currentColor;border-radius:2px}
.nav-toggle span + span{margin-top:4px}

@media (max-width:940px){
  .nav{
    position:absolute;top:70px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-bottom:1px solid var(--line);
    padding:12px 22px 20px;box-shadow:var(--shadow-md);
  }
  .nav{display:none}
  .nav.is-open{display:flex}
  .nav a{padding:12px 10px;font-size:1rem}
  .nav .btn{margin-top:8px;justify-content:center}
  .nav-toggle{display:block}
}

/* ================= Botones ================= */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-weight:700;font-size:.95rem;line-height:1;
  padding:14px 20px;border-radius:10px;border:1px solid transparent;
  cursor:pointer;text-decoration:none;
  transition:transform .12s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--leaf-600);color:#fff;box-shadow:0 8px 20px -12px rgba(85,125,20,.85)}
.btn-primary:hover{background:var(--leaf-500)}
.btn-dark{background:var(--navy-800);color:#fff}
.btn-dark:hover{background:var(--navy-700)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--navy-500);background:var(--paper-2)}
.btn-light{background:#fff;color:var(--navy-900)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-outline-light:hover{background:rgba(255,255,255,.1)}
.btn-sm{padding:10px 15px;font-size:.87rem}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* ================= Héroe ================= */
.hero{
  background:
    radial-gradient(90% 120% at 88% 8%, rgba(147,199,49,.26) 0%, rgba(147,199,49,0) 55%),
    linear-gradient(165deg,var(--navy-800) 0%,var(--navy-900) 68%);
  color:#DBE0D6;
  padding:74px 0 82px;
  position:relative;overflow:hidden;
}
.hero h1{color:#fff}
.hero h1 em{font-style:normal;color:var(--leaf-400)}
.hero .lead{color:#BCC4B6;font-size:1.19rem}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center}
@media (max-width:920px){.hero-grid{grid-template-columns:1fr;gap:36px}}
.hero-copy{display:flex;flex-direction:column;gap:22px;align-items:flex-start}
.hero-points{
  list-style:none;margin:0;padding:0;
  display:flex;flex-wrap:wrap;gap:8px 10px;
}
.hero-points li{
  font-size:.85rem;font-weight:600;color:#D3DBCB;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  padding:7px 13px;border-radius:99px;
}

/* Tarjeta lateral del héroe */
.quote-card{
  background:#fff;border-radius:var(--radius);
  padding:26px;box-shadow:0 30px 60px -30px rgba(0,0,0,.65);
  display:flex;flex-direction:column;gap:16px;
}
.quote-card h2{font-size:1.22rem}
.qc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.qc-list li{
  display:grid;grid-template-columns:1fr auto;gap:10px;align-items:baseline;
  padding-bottom:11px;border-bottom:1px dashed var(--line);
  font-size:.94rem;color:var(--body);
}
.qc-list li:last-child{border-bottom:0;padding-bottom:0}
.qc-list b{color:var(--ink);font-weight:700}
.qc-list .p{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--leaf-600);font-weight:600;font-size:.9rem;white-space:nowrap}

/* ================= Tira de confianza ================= */
.strip{background:var(--navy-900);color:#BCC4B6;padding:0}
.strip .wrap{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:rgba(255,255,255,.09);
  padding:0;max-width:var(--maxw);
}
.strip .cell{background:var(--navy-900);padding:22px;display:flex;flex-direction:column;gap:3px}
.strip .cell b{color:#fff;font-size:.99rem;font-weight:700}
.strip .cell span{font-size:.87rem;color:#9AA396}
@media (max-width:800px){.strip .wrap{grid-template-columns:repeat(2,1fr)}}
@media (max-width:460px){.strip .wrap{grid-template-columns:1fr}}

/* ================= Cabecera de sección ================= */
.sec-head{display:flex;flex-direction:column;gap:12px;margin-bottom:38px;max-width:70ch}
.sec-head.center{align-items:center;text-align:center;margin-left:auto;margin-right:auto}

/* ================= Rejillas ================= */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media (max-width:980px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:680px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

/* ================= Tarjeta de servicio ================= */
.svc{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;display:flex;flex-direction:column;gap:13px;
  transition:border-color .15s ease, box-shadow .18s ease, transform .18s ease;
}
.svc:hover{border-color:var(--leaf-400);box-shadow:var(--shadow-md);transform:translateY(-2px);text-decoration:none}
.svc .icon{
  width:42px;height:42px;border-radius:11px;background:var(--leaf-050);
  display:grid;place-items:center;color:var(--leaf-600);flex:0 0 auto;
}
.svc p{font-size:.95rem;color:var(--muted);flex:1}
.svc .price{
  font-family:var(--mono);font-size:.88rem;font-weight:600;color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.svc .go{font-weight:700;font-size:.92rem;color:var(--leaf-600)}
.svc.featured{border-color:var(--leaf-500);box-shadow:var(--shadow-md);position:relative}
.tag{
  position:absolute;top:-11px;left:24px;
  background:var(--leaf-600);color:#fff;font-size:.68rem;font-weight:700;
  letter-spacing:.1em;text-transform:uppercase;padding:5px 10px;border-radius:6px;
  font-family:var(--mono);
}

/* ================= Pasos numerados ================= */
.steps{display:flex;flex-direction:column;gap:0;counter-reset:step}
.step{
  position:relative;padding:0 0 30px 42px;border-left:2px solid var(--line);
  display:flex;flex-direction:column;gap:7px;
}
.step:last-child{border-left-color:transparent;padding-bottom:0}
.step::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:-15px;top:-3px;width:28px;height:28px;border-radius:50%;
  background:var(--leaf-600);color:#fff;display:grid;place-items:center;
  font-family:var(--mono);font-size:.78rem;font-weight:600;
}
.step p{font-size:.96rem;color:var(--muted)}

/* ================= Listas ================= */
ul.ticks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;max-width:68ch}
ul.ticks li{position:relative;padding-left:28px;font-size:.98rem}
ul.ticks li::before{
  content:"";position:absolute;left:4px;top:.45em;width:13px;height:8px;
  border-left:2.5px solid var(--leaf-500);border-bottom:2.5px solid var(--leaf-500);
  transform:rotate(-45deg);
}
ul.ticks li b{color:var(--ink)}

ul.crosses{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
ul.crosses li{position:relative;padding-left:28px;font-size:.98rem;color:var(--muted)}
ul.crosses li::before{content:"×";position:absolute;left:6px;top:-.06em;color:#C0562F;font-weight:800;font-size:1.15rem}

/* ================= Tablas ================= */
.tablebox{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:.95rem}
th,td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);vertical-align:top}
thead th{
  font-family:var(--mono);font-size:.68rem;letter-spacing:.13em;text-transform:uppercase;
  color:var(--muted);font-weight:600;background:var(--paper-2);
}
tbody tr:last-child td{border-bottom:0}
td strong{color:var(--ink)}
td.num{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--ink);font-weight:600;white-space:nowrap}

/* ================= Panel destacado ================= */
.panel{
  background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;gap:14px;
}
.panel.leaf{background:var(--leaf-050);border-color:#C9E5C1}
.panel.amber{background:var(--amber-050);border-color:#F0DCB4}
.panel.amber h3{color:var(--amber-600)}

/* ================= Precio grande ================= */
.pricebox{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:10px;
  padding:18px 22px;background:var(--navy-900);color:#fff;border-radius:var(--radius);
}
.pricebox .amount{font-size:2rem;font-weight:800;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.pricebox .unit{color:#A3AC9E;font-size:.94rem}

/* ================= FAQ ================= */
.faq{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line);max-width:78ch}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  cursor:pointer;list-style:none;padding:19px 40px 19px 0;position:relative;
  font-weight:700;color:var(--ink);font-size:1.02rem;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:6px;top:16px;
  font-size:1.4rem;font-weight:400;color:var(--leaf-600);line-height:1;
}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 0 20px;color:var(--muted);font-size:.97rem}

/* ================= Llamada final ================= */
.cta{
  background:linear-gradient(150deg,var(--navy-700) 0%,var(--navy-900) 75%);
  color:#fff;border-radius:18px;padding:44px;
  display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;
}
.cta h2{color:#fff;max-width:20ch}
.cta p{color:#BFC7B9;max-width:46ch;margin-top:10px}

/* ================= Artículo / guía ================= */
.article{max-width:none}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:56px;align-items:start}
@media (max-width:960px){.article-grid{grid-template-columns:1fr;gap:36px}}
.prose{display:flex;flex-direction:column;gap:20px;font-size:1.03rem}
.prose h2{margin-top:22px;font-size:1.6rem}
.prose h3{margin-top:12px}
.prose p,.prose ul,.prose ol{max-width:70ch}
.prose ul,.prose ol{padding-left:22px;display:flex;flex-direction:column;gap:8px;margin:0}
.prose blockquote{
  margin:0;padding:4px 0 4px 20px;border-left:3px solid var(--leaf-500);
  color:var(--ink);font-weight:600;
}
.aside-card{
  position:sticky;top:92px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;display:flex;flex-direction:column;gap:14px;
}
.aside-card h3{font-size:1.03rem}
.aside-card p{font-size:.92rem;color:var(--muted)}
.toc{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;font-size:.92rem}
.toc a{color:var(--body);font-weight:600}
.byline{
  display:flex;flex-wrap:wrap;gap:6px 16px;font-family:var(--mono);
  font-size:.75rem;color:var(--muted);letter-spacing:.03em;
}

/* Tarjetas de guía */
.post{
  display:flex;flex-direction:column;gap:11px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;transition:border-color .15s ease,box-shadow .18s ease,transform .18s ease;
}
.post:hover{border-color:var(--leaf-400);box-shadow:var(--shadow-md);transform:translateY(-2px);text-decoration:none}
.post h3{font-size:1.1rem}
.post p{font-size:.94rem;color:var(--muted)}
.post .kicker{font-family:var(--mono);font-size:.7rem;letter-spacing:.13em;text-transform:uppercase;color:var(--leaf-600);font-weight:600}

/* ================= Formulario ================= */
form.contact{display:flex;flex-direction:column;gap:16px;max-width:560px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-weight:700;font-size:.9rem;color:var(--ink)}
.field input,.field select,.field textarea{
  font-family:var(--font);font-size:1rem;color:var(--ink);
  padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:#fff;
  width:100%;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--leaf-500);outline:none;box-shadow:0 0 0 3px rgba(110,158,34,.18)}
.field textarea{min-height:130px;resize:vertical}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.87rem;color:var(--muted)}
.check input{width:auto;margin-top:3px}

.form-alert{
  display:none;gap:10px;align-items:flex-start;
  padding:14px 16px;border-radius:10px;font-size:.94rem;
  border:1px solid;margin-bottom:4px;
}
.form-alert.is-visible{display:flex}
.form-alert.error{background:#FCEDE9;border-color:#E7C3B7;color:#8E3A1C}
.form-alert.ok{background:var(--leaf-050);border-color:#C6DFA4;color:var(--leaf-600)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* ================= Pie ================= */
.site-footer{background:var(--navy-900);color:#A3AC9E;padding:56px 0 30px;font-size:.93rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}
@media (max-width:860px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media (max-width:520px){.footer-grid{grid-template-columns:1fr}}
.site-footer h4{color:#fff;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;font-family:var(--mono);font-weight:600;margin-bottom:14px}
.site-footer a{color:#C9D0C2;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.site-footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.footer-brand{display:flex;flex-direction:column;gap:12px;max-width:34ch}
.footer-brand .brand-name{color:#fff}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:.85rem;color:#8A9285;
}

/* ================= Botón flotante de WhatsApp ================= */
.wa-float{
  position:fixed;right:18px;bottom:18px;z-index:70;
  width:56px;height:56px;border-radius:50%;
  background:#25D366;color:#fff;display:grid;place-items:center;
  box-shadow:0 10px 26px -8px rgba(37,211,102,.7);
  transition:transform .15s ease;
}
.wa-float:hover{transform:scale(1.06);text-decoration:none}
@media (max-width:520px){.wa-float{width:52px;height:52px;right:14px;bottom:14px}}

/* ================= Migas ================= */
.crumbs{font-size:.83rem;color:var(--muted);padding:16px 0 0}
.crumbs a{color:var(--muted)}
.crumbs span{margin:0 7px;opacity:.5}