/* ═══════════════════════════════════════════════════════════════
   Nerd Robot · hoja de estilos del sitio
   Colores, tipografías y proporciones tomados del Manual de Marca v1.0
   ═══════════════════════════════════════════════════════════════ */

:root{
  --pergamino:#FAF3D9; --papel:#FFFDF7; --tinta:#1E1913; --grafito:#352C1E;
  --medio:#6B6050;     --trama:#ACA189; --ambar:#96551F; --ambar-claro:#C98A3E; --azul:#2C4B63;
  --display:'Poppins','Century Gothic',Verdana,sans-serif;
  --body:'Lora',Georgia,'Times New Roman',serif;
  --mono:'JetBrains Mono',Consolas,'Courier New',monospace;
  --wrap:1120px; --gut:clamp(20px,5vw,40px);
  --hatch:repeating-linear-gradient(-45deg,rgba(53,44,30,.14) 0 1px,transparent 1px 7px);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--pergamino); color:var(--grafito);
  font-family:var(--body); font-size:16px; line-height:1.6; -webkit-font-smoothing:antialiased;
}
/* grano de papel */
body::before{
  content:""; position:fixed; inset:0; z-index:0; pointer-events:none; opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

h1,h2,h3,h4{font-family:var(--display); font-weight:700; margin:0; color:var(--grafito)}
h1{font-size:clamp(30px,4.6vw,44px); line-height:1.12; letter-spacing:-.01em}
h2{font-size:clamp(24px,3.2vw,32px); line-height:1.2; letter-spacing:-.005em}
h3{font-size:clamp(19px,2.3vw,23px); line-height:1.3; font-weight:500}
h4{font-size:17px; line-height:1.35; font-weight:500}
p{margin:0 0 1em}
a{color:inherit}
img{max-width:100%}
:focus-visible{outline:2px solid var(--ambar); outline-offset:3px; border-radius:2px}

.wrap{max-width:var(--wrap); margin-inline:auto; padding-inline:var(--gut); position:relative; z-index:1}
.eyebrow{
  font-family:var(--display); font-weight:500; font-size:12px; line-height:1.3;
  letter-spacing:.08em; text-transform:uppercase; color:var(--ambar); margin:0 0 14px;
}
.skip{position:absolute; left:-9999px}
.skip:focus{left:var(--gut); top:10px; background:var(--grafito); color:var(--pergamino); padding:10px 16px; z-index:99}
.lead{font-size:clamp(17px,1.7vw,19px); max-width:56ch}
.muted{color:var(--medio)}

/* ── marca: una sola máscara sirve en claro y en oscuro ── */
.mark{display:block; background-color:currentColor;
  -webkit-mask-repeat:no-repeat; mask-repeat:no-repeat;
  -webkit-mask-size:contain;     mask-size:contain;
  -webkit-mask-position:center;  mask-position:center}
.mark-word{-webkit-mask-image:url('wordmark.png'); mask-image:url('wordmark.png')}
.mark-iso{-webkit-mask-image:url('isotipo.png');  mask-image:url('isotipo.png')}

/* ── botones ── */
.btn{
  font-family:var(--display); font-size:14px; font-weight:500; text-decoration:none;
  padding:12px 22px; border-radius:2px; border:1px solid var(--grafito);
  display:inline-block; text-align:center; cursor:pointer; background:transparent; color:var(--grafito);
  transition:background .18s,color .18s,transform .18s
}
.btn:hover{background:rgba(53,44,30,.06)}
.btn-solid{background:var(--grafito); color:var(--pergamino)}
.btn-solid:hover{background:var(--tinta); color:var(--pergamino); transform:translateY(-1px)}
.btn-sm{padding:9px 16px; font-size:13px}
.actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:30px}

/* ═══ ENCABEZADO ═══ */
.site-head{
  position:sticky; top:0; z-index:40; background:rgba(250,243,217,.93);
  backdrop-filter:blur(6px); border-bottom:1px solid var(--trama);
}
.head-in{display:flex; align-items:center; justify-content:space-between; gap:20px; padding-block:14px}
.brand{display:flex; align-items:center; text-decoration:none; color:var(--grafito)}
.brand .mark-word{width:142px; height:25px; flex:none}
.head-right{display:flex; align-items:center; gap:clamp(12px,2.4vw,26px)}
.nav{display:flex; align-items:center; gap:clamp(12px,2.4vw,26px)}
.nav a{
  font-family:var(--display); font-size:14px; text-decoration:none; color:var(--grafito);
  padding-bottom:3px; border-bottom:1px solid transparent; transition:border-color .18s,color .18s
}
.nav a:hover{border-bottom-color:var(--ambar)}
.nav a.active{color:var(--ambar); border-bottom-color:var(--ambar)}
.head-login{
  font-family:var(--display); font-size:14px; font-weight:500; cursor:pointer;
  border:1px solid var(--grafito); border-radius:2px; padding:8px 18px;
  background:transparent; color:var(--grafito); display:inline-flex; align-items:center; gap:8px;
  transition:background .18s,color .18s
}
.head-login:hover{background:var(--grafito); color:var(--pergamino)}
.head-login svg{width:13px; height:13px; fill:currentColor}
.head-toggle{
  display:none; width:40px; height:36px; border:1px solid var(--trama); border-radius:2px;
  background:transparent; cursor:pointer; padding:9px 10px; flex-direction:column; justify-content:space-between
}
.head-toggle span{display:block; height:1.5px; background:var(--grafito); transition:transform .2s,opacity .2s}
.head-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.head-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.head-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ═══ SECCIONES ═══ */
.section{padding-block:clamp(52px,7vw,88px); border-top:1px solid var(--trama)}
.section:first-of-type{border-top:0}
.section-head{max-width:62ch; margin-bottom:clamp(32px,4.5vw,52px)}
.section-head p{color:var(--medio); margin-top:14px; font-size:17px}

.page-hero{padding-block:clamp(44px,7vw,76px) clamp(28px,4vw,40px)}
.page-hero .lead{color:var(--medio); margin-top:20px}

/* ── hero de inicio ── */
.hero{padding-block:clamp(48px,8vw,88px) clamp(40px,6vw,64px)}
.hero-grid{display:grid; grid-template-columns:1.12fr .88fr; gap:clamp(28px,5vw,64px); align-items:center}
.hero h1 em{font-style:normal; color:var(--ambar)}
.hero .lead{margin-top:22px; max-width:46ch}
.hero-art{position:relative; display:flex; justify-content:center; align-items:flex-end}
.hero-art .mark-iso{width:min(300px,78%); aspect-ratio:926/1223; color:var(--grafito)}
.hero-art::after{
  content:""; position:absolute; bottom:6px; left:50%; transform:translateX(-50%);
  width:min(330px,88%); height:26px; background:var(--hatch); border-radius:50%; opacity:.85
}

/* ── principios ── */
.tenets{border-top:1px solid var(--trama); padding-block:clamp(34px,5vw,48px)}
.tenets-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(20px,4vw,44px)}
.tenet-k{font-family:var(--mono); font-size:13px; font-weight:500; color:var(--ambar); margin:0 0 8px; letter-spacing:.02em}
.tenet p{font-size:15px; color:var(--medio); margin:0; max-width:34ch}

/* ── tarjetas de producto ── */
.cards{display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(18px,2.4vw,26px)}
.card{
  display:flex; flex-direction:column; text-decoration:none; color:inherit;
  background:var(--papel); border:1px solid var(--trama); border-radius:3px;
  padding:clamp(22px,2.6vw,30px); position:relative; overflow:hidden;
  transition:border-color .2s,transform .2s
}
.card::before{
  content:""; position:absolute; inset:0; background:var(--hatch); opacity:0; transition:opacity .25s
}
.card:hover{border-color:var(--grafito); transform:translateY(-2px)}
.card:hover::before{opacity:.5}
.card > *{position:relative}
.card h3{margin:14px 0 8px}
.card p{font-size:15px; color:var(--medio); margin-bottom:18px}
.card .go{
  margin-top:auto; font-family:var(--display); font-size:13px; font-weight:500; color:var(--ambar)
}
.card .go .arrow{display:inline-block; transition:transform .2s}
.card:hover .go .arrow{transform:translateX(4px)}
.tag{
  font-family:var(--mono); font-size:11px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--medio); border:1px solid var(--trama); border-radius:2px;
  padding:4px 9px; display:inline-block; align-self:flex-start
}

/* ── proceso numerado (sí es una secuencia) ── */
.steps{display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(22px,3.4vw,44px)}
.step-n{
  font-family:var(--mono); font-size:12px; color:var(--ambar); letter-spacing:.1em;
  padding-bottom:12px; border-bottom:1px solid var(--trama); margin-bottom:16px; display:block
}
.step h3{margin-bottom:10px}
.step p{font-size:15px; color:var(--medio); margin:0}

/* ── detalle de producto ── */
.detail{display:grid; grid-template-columns:1fr .95fr; gap:clamp(30px,5vw,64px); align-items:start}
.detail-body h2{margin-top:clamp(30px,4vw,44px)}
.detail-body h2:first-child{margin-top:0}
.figure{margin:0; position:sticky; top:96px}
.figure svg{width:100%; height:auto; display:block}
.figcap{font-family:var(--mono); font-size:11px; color:var(--medio); margin-top:12px; letter-spacing:.02em}

.caps{list-style:none; margin:16px 0 0; padding:0}
.caps li{position:relative; padding-left:20px; margin-bottom:9px; font-size:16px; color:var(--grafito)}
.caps li::before{content:""; position:absolute; left:0; top:.62em; width:10px; height:1px; background:var(--ambar)}
.caps.soft li{color:var(--medio); font-size:15px}

.note-box{
  border-left:3px solid var(--ambar); background:rgba(150,85,31,.06);
  padding:16px 18px; margin-top:26px; font-size:15px; color:var(--medio)
}
.note-box p:last-child{margin-bottom:0}

/* ── enlaces entre productos ── */
.crosslinks{display:grid; grid-template-columns:1fr 1fr; gap:clamp(16px,2.4vw,24px); margin-top:8px}
.crosslink{
  text-decoration:none; color:inherit; border:1px solid var(--trama); border-radius:3px;
  padding:20px 22px; display:block; transition:border-color .2s,background .2s
}
.crosslink:hover{border-color:var(--grafito); background:var(--papel)}
.crosslink .k{font-family:var(--mono); font-size:11px; letter-spacing:.12em; text-transform:uppercase; color:var(--ambar)}
.crosslink h4{margin-top:8px}

/* ── cierre ── */
.close-in{display:grid; grid-template-columns:1.2fr auto; gap:32px; align-items:center}
.close-in p{color:var(--medio); margin:14px 0 0; max-width:52ch}

/* ═══ CONTACTO ═══ */
.contact-grid{display:grid; grid-template-columns:.82fr 1.18fr; gap:clamp(30px,5vw,64px); align-items:start}
.datos dl{margin:0 0 26px}
.datos dt{font-family:var(--display); font-size:12px; font-weight:500; letter-spacing:.08em;
  text-transform:uppercase; color:var(--medio); margin-bottom:5px}
.datos dd{margin:0 0 18px; font-size:16px}
.datos dd a{text-decoration:none; border-bottom:1px solid var(--trama)}
.datos dd a:hover{border-bottom-color:var(--ambar); color:var(--ambar)}
.datos-actions{display:flex; flex-wrap:wrap; gap:10px; margin-bottom:22px}
.datos-note{font-size:15px; color:var(--medio); max-width:38ch}

.form-card{background:var(--papel); border:1px solid var(--trama); border-radius:3px;
  padding:clamp(24px,3.4vw,38px); position:relative}
.form-card::before{content:""; position:absolute; left:0; right:0; top:0; height:5px;
  background:var(--hatch); border-bottom:1px solid var(--trama)}
.form-card h2{margin-top:6px}
.form-card .hint{color:var(--medio); font-size:15px; margin-top:12px; margin-bottom:26px}

.fields{display:grid; grid-template-columns:1fr 1fr; gap:18px}
.field{display:flex; flex-direction:column}
.field.full{grid-column:1/-1}
.field label{font-family:var(--display); font-size:12px; font-weight:500; letter-spacing:.08em;
  text-transform:uppercase; color:var(--grafito); margin-bottom:7px}
.field label .req{color:var(--ambar); margin-left:3px}
.field input,.field textarea{
  font-family:var(--body); font-size:16px; color:var(--grafito); background:transparent;
  border:0; border-bottom:1px solid var(--trama); border-radius:0; padding:9px 2px; transition:border-color .18s
}
.field textarea{resize:vertical; min-height:96px; line-height:1.55}
.field input:hover,.field textarea:hover{border-bottom-color:var(--medio)}
.field input:focus,.field textarea:focus{outline:none; border-bottom-color:var(--ambar); border-bottom-width:2px}
.field .err{font-family:var(--mono); font-size:11px; color:var(--ambar); margin-top:6px; min-height:14px}
.field.invalid input,.field.invalid textarea{border-bottom-color:var(--ambar)}

.consent{grid-column:1/-1; display:flex; gap:12px; align-items:flex-start; margin-top:6px}
.consent input{margin-top:5px; width:16px; height:16px; accent-color:var(--ambar); flex:none}
.consent label{font-size:14px; line-height:1.55; color:var(--medio); font-family:var(--body);
  text-transform:none; letter-spacing:0; margin:0}
.consent a{color:var(--azul)}
.form-foot{grid-column:1/-1; display:flex; flex-wrap:wrap; gap:16px 24px; align-items:center;
  justify-content:space-between; margin-top:10px; border-top:1px solid var(--trama); padding-top:22px}
.required-note{font-family:var(--mono); font-size:11px; color:var(--medio); letter-spacing:.02em}
.form-status{grid-column:1/-1; font-size:15px; margin-top:16px; padding:14px 16px;
  border-left:3px solid var(--ambar); background:rgba(150,85,31,.06); display:none}
.form-status.show{display:block}
.form-status.ok{border-left-color:var(--azul); background:rgba(44,75,99,.07)}

/* trampa anti-spam: invisible para personas, visible para bots */
.honeypot-field{position:absolute!important; left:-9999px!important; width:1px!important;
  height:1px!important; overflow:hidden!important; opacity:0!important; pointer-events:none!important}

/* ═══ VENTANA DE ACCESO ═══ */
.dialog{
  border:1px solid var(--trama); border-radius:4px; padding:0; width:min(440px,calc(100vw - 32px));
  background:var(--papel); color:var(--grafito); box-shadow:0 24px 60px rgba(30,25,19,.22)
}
.dialog::backdrop{background:rgba(30,25,19,.55)}
.dialog-in{padding:clamp(26px,3.4vw,34px); position:relative}
.dialog-in::before{content:""; position:absolute; left:0; right:0; top:0; height:5px;
  background:var(--hatch); border-bottom:1px solid var(--trama)}
.dialog-close{
  position:absolute; top:12px; right:12px; width:32px; height:32px; border:0; border-radius:2px;
  background:transparent; color:var(--medio); cursor:pointer; font-size:20px; line-height:1;
  font-family:var(--display)
}
.dialog-close:hover{background:rgba(53,44,30,.07); color:var(--grafito)}
.dialog .mark-iso{width:52px; aspect-ratio:926/1223; color:var(--grafito); margin:6px 0 16px}
.dialog h2{font-size:24px; margin-bottom:8px}
.dialog .hint{font-size:15px; color:var(--medio); margin-bottom:24px}
.dialog .field{margin-bottom:18px}
.pw-wrap{position:relative; display:flex; align-items:center}
.pw-wrap input{flex:1; padding-right:56px}
.pw-toggle{
  position:absolute; right:0; bottom:12px; border:0; background:transparent; cursor:pointer;
  font-family:var(--mono); font-size:11px; letter-spacing:.06em; color:var(--medio); padding:4px 2px
}
.pw-toggle:hover{color:var(--ambar)}
.dialog .btn{width:100%; margin-top:6px}
.dialog-foot{
  margin-top:20px; padding-top:18px; border-top:1px solid var(--trama);
  display:flex; justify-content:space-between; gap:14px; flex-wrap:wrap;
  font-family:var(--mono); font-size:11px; color:var(--medio); letter-spacing:.02em
}
.dialog-foot a{color:var(--azul)}
.dialog-status{
  font-size:14px; margin-top:16px; padding:13px 15px; display:none;
  border-left:3px solid var(--ambar); background:rgba(150,85,31,.06); color:var(--medio)
}
.dialog-status.show{display:block}

/* ═══ PIE ═══ */
.site-foot{background:var(--tinta); color:var(--pergamino); padding-block:clamp(46px,6vw,64px) 0;
  position:relative; z-index:1}
.foot-top{display:grid; grid-template-columns:1.25fr 1fr 1fr; gap:clamp(26px,4vw,48px)}
.foot-brand .mark-iso{width:62px; aspect-ratio:926/1223; color:var(--pergamino); margin-bottom:18px}
.parent{
  display:inline-block; text-decoration:none; color:var(--pergamino);
  font-family:var(--display); font-size:clamp(16px,1.9vw,19px); font-weight:500; line-height:1.45;
  border-bottom:1px solid rgba(250,243,217,.35); padding-bottom:3px; transition:color .18s,border-color .18s
}
.parent strong{color:var(--ambar-claro); font-weight:700}
.parent:hover{color:var(--ambar-claro); border-bottom-color:var(--ambar-claro)}
.parent .arrow{display:inline-block; transition:transform .18s}
.parent:hover .arrow{transform:translate(3px,-3px)}
.foot-blurb{color:rgba(250,243,217,.62); font-size:14px; margin-top:16px; max-width:40ch}
.foot-col h4{font-family:var(--display); font-size:12px; font-weight:500; letter-spacing:.08em;
  text-transform:uppercase; color:var(--ambar-claro); margin-bottom:14px}
.foot-col ul{list-style:none; margin:0; padding:0}
.foot-col li{margin-bottom:10px; font-size:14px; color:rgba(250,243,217,.78)}
.foot-col a{color:rgba(250,243,217,.78); text-decoration:none; border-bottom:1px solid transparent}
.foot-col a:hover{color:var(--pergamino); border-bottom-color:var(--ambar-claro)}
.foot-bottom{margin-top:clamp(34px,5vw,52px); border-top:1px solid rgba(250,243,217,.16);
  padding-block:20px 26px; display:flex; flex-wrap:wrap; gap:8px 24px; justify-content:space-between;
  font-family:var(--mono); font-size:11px; color:rgba(250,243,217,.5); letter-spacing:.02em}

/* ── entrada al hacer scroll ── */
.reveal{opacity:0; transform:translateY(14px); transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1; transform:none}

/* ═══ RESPONSIVE ═══ */
@media (max-width:980px){
  .cards{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .head-toggle{display:flex}
  .head-right{gap:12px}
  .nav{
    position:absolute; left:0; right:0; top:100%; flex-direction:column; align-items:stretch;
    gap:0; background:var(--pergamino); border-bottom:1px solid var(--trama);
    padding:6px var(--gut) 16px; display:none
  }
  .nav.open{display:flex}
  .nav a{padding-block:13px; border-bottom:1px solid var(--trama)}
  .nav a:last-child{border-bottom:0}
  .hero-grid{grid-template-columns:1fr}
  .hero-art{order:-1; margin-bottom:8px}
  .hero-art .mark-iso{width:200px}
  .tenets-grid{grid-template-columns:1fr; gap:22px}
  .tenet + .tenet{border-top:1px dashed var(--trama); padding-top:22px}
  .detail{grid-template-columns:1fr}
  .figure{position:static; order:-1}
  .contact-grid{grid-template-columns:1fr}
  .close-in{grid-template-columns:1fr}
  .foot-top{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1/-1}
}
@media (max-width:700px){
  .cards{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .crosslinks{grid-template-columns:1fr}
  .figure{overflow-x:auto}
  .figure svg{min-width:470px}
  .figcap{position:sticky; left:0}
}
@media (max-width:560px){
  .brand .mark-word{width:116px; height:20px}
  .fields{grid-template-columns:1fr}
  .foot-top{grid-template-columns:1fr}
  .head-login{padding:8px 13px}
  .head-login .label{display:none}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important; animation:none!important}
  .reveal{opacity:1; transform:none}
}