/* Traverco Madrid · estilo del sitio. Sin dependencias externas. */
:root{
  --ink:#070a2b; --indigo:#101088; --indigo2:#1f2fd0; --amber:#ffb400; --amber2:#ffc933;
  --paper:#f6f4ee; --white:#fff; --text:#1b1f3b; --mut:#5a5f80; --line:#e0ded5;
  --radio:18px; --ease:cubic-bezier(.2,.7,.2,1);
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;font:400 1.0625rem/1.65 var(--sans);color:var(--text);background:var(--white);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:var(--indigo)}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.1;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2.3rem,4.7vw,4.1rem);font-weight:600}
h2{font-size:clamp(2rem,4.4vw,3.4rem)}
h3{font-size:1.3rem;letter-spacing:0}
em{font-style:italic;color:var(--indigo)}
p{margin:0 0 1em}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.salto{position:absolute;left:-999px;top:8px;background:var(--amber);color:var(--ink);padding:.6rem 1rem;border-radius:8px;z-index:100;font-weight:600}
.salto:focus{left:8px}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px;border-radius:4px}
.cont{width:min(1200px,100% - 2.5rem);margin-inline:auto}
.cont--estrecho{width:min(820px,100% - 2.5rem)}
.eyebrow{font:600 .8rem/1 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--amber);margin:0 0 1.2rem}
.eyebrow--oscuro{color:var(--indigo)}
.lead{font-size:clamp(1.1rem,1.6vw,1.35rem);line-height:1.55;max-width:46ch;opacity:.92}

/* Botones */
.btn{display:inline-flex;align-items:center;gap:.6rem;border:2px solid transparent;border-radius:999px;padding:.95rem 1.6rem;font:600 1rem/1 var(--sans);text-decoration:none;cursor:pointer;transition:transform .25s var(--ease),background .25s,box-shadow .25s,color .25s}
.btn .ico{width:1.2em;height:1.2em}
.btn--amber{background:var(--amber);color:var(--ink);box-shadow:0 8px 28px -8px rgba(255,180,0,.7)}
.btn--amber:hover{background:var(--amber2);transform:translateY(-2px)}
.btn--ghost{border-color:rgba(255,255,255,.55);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn--sm{padding:.7rem 1.1rem;font-size:.95rem}
.btn--block{width:100%;justify-content:center}
.ico{width:1.4rem;height:1.4rem;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* Cabecera */
.cab{position:fixed;inset:0 0 auto 0;z-index:50;color:#fff;transition:background .35s,box-shadow .35s,backdrop-filter .35s}
.cab__in{width:min(1200px,100% - 2.5rem);margin-inline:auto;display:flex;align-items:center;justify-content:space-between;height:78px;transition:height .3s}
.cab--solid{background:rgba(7,10,43,.9);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);box-shadow:0 1px 0 rgba(255,255,255,.08)}
.cab--solid .cab__in{height:64px}
.marca{display:flex;align-items:center;gap:.8rem;color:inherit;text-decoration:none}
.marca__logo{height:46px;width:auto}
.marca__logo--oscuro{display:none}
.marca__txt{display:flex;flex-direction:column;line-height:1.1;font-family:var(--serif);font-size:1.25rem;letter-spacing:.01em}
.marca__txt b{font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-size:1.05rem}
.marca__txt small{font:500 .62rem/1 var(--sans);letter-spacing:.24em;text-transform:uppercase;opacity:.7;margin-top:.35rem}
.menu{display:flex;align-items:center;gap:1.6rem}
.menu a{color:inherit;text-decoration:none;font-weight:500;font-size:.98rem;position:relative}
.menu a:not(.btn):not(.menu__tel)::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--amber);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.menu a:not(.btn):not(.menu__tel):hover::after{transform:scaleX(1)}
.menu__tel{display:flex;align-items:center;gap:.5rem;font-weight:600}
.menu__tel .ico{color:var(--amber);width:1.2rem;height:1.2rem}
.menu-btn{display:none;background:none;border:0;width:44px;height:44px;padding:10px;cursor:pointer;color:inherit;position:relative}
.menu-btn i{display:block;height:2px;background:currentColor;margin:6px 0;border-radius:2px;transition:transform .3s,opacity .3s}
.menu-btn[aria-expanded=true] i:nth-of-type(1){transform:translateY(8px) rotate(45deg)}
.menu-btn[aria-expanded=true] i:nth-of-type(2){opacity:0}
.menu-btn[aria-expanded=true] i:nth-of-type(3){transform:translateY(-8px) rotate(-45deg)}
/* En páginas interiores la cabecera ya es sólida */
.es-interior .cab{background:rgba(7,10,43,.95)}

/* Capas parallax */
[data-host]{position:relative;overflow:hidden;isolation:isolate}
.capa{position:absolute;inset:0;pointer-events:none;z-index:-1}
.capa--parallax{inset:-16% 0;will-change:transform}
.svg-fill{width:100%;height:100%}
.capa--cielo{background:
  radial-gradient(60% 45% at 18% 108%,rgba(255,180,0,.38),transparent 70%),
  radial-gradient(50% 40% at 85% 0%,rgba(63,86,255,.45),transparent 70%),
  linear-gradient(180deg,#05071f 0%,#0b0f5c 40%,#101088 74%,#2231c4 100%)}
.capa--cielo2{background:
  radial-gradient(55% 60% at 100% 100%,rgba(255,180,0,.22),transparent 70%),
  linear-gradient(160deg,#101088 0%,#0a0d4a 55%,#05071f 100%)}
.capa--cielo3{background:linear-gradient(180deg,#05071f,#0c0f55 100%)}
.capa--cuerdas{inset:-16% 7% -16% auto;width:min(30vw,380px)}
.capa--cuerdas-izq{inset:-16% auto -16% 7%}
.cuerdas{width:100%;height:100%}
.cuerdas__mov{transform-box:fill-box;transform-origin:50% 0;animation:balanceo 7s ease-in-out infinite alternate}
@keyframes balanceo{from{transform:rotate(-1.6deg)}to{transform:rotate(1.6deg)}}
.capa--skyline{inset:auto 0 -2px 0;height:clamp(110px,22vw,260px);z-index:0}
.svg-skyline{width:100%;height:100%}

/* Hero */
.hero{min-height:100svh;display:flex;align-items:center;color:#fff;padding:6.2rem 0 clamp(7rem,16vw,12rem)}
.hero__in{position:relative;z-index:1;will-change:transform,opacity}
.hero h1{max-width:19ch;margin-bottom:.4em}
.hero h1 em,.banda h2 em,.oscura h2 em,.contacto h2 em{color:var(--amber)}
.hero .lead{margin-bottom:1.8rem;max-width:54ch}
.hero__cta{display:flex;flex-wrap:wrap;gap:.9rem}

/* Confianza */
.confianza{background:var(--ink);color:#fff;position:relative;z-index:1}
.confianza__lista{list-style:none;margin:0 auto;padding:1.6rem 0;display:grid;grid-template-columns:repeat(4,1fr);gap:1.6rem}
.confianza li{display:flex;gap:.9rem;align-items:flex-start;font-size:.95rem;line-height:1.4;color:rgba(255,255,255,.82)}
.confianza li b{display:block;color:#fff;font-weight:600}
.confianza .ico{color:var(--amber);width:1.9rem;height:1.9rem;margin-top:.1rem}

/* Secciones */
.seccion{padding:clamp(4.5rem,10vw,8.5rem) 0}
.seccion--papel{background:var(--paper)}
.cab-sec{max-width:760px;margin-bottom:clamp(2.2rem,5vw,3.6rem)}
.cab-sec p:not(.eyebrow){font-size:1.15rem;color:var(--mut)}
.rejilla{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.tarjeta{background:#fff;border:1px solid var(--line);border-radius:var(--radio);padding:1.9rem 1.7rem 1.6rem;display:flex;flex-direction:column;transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .3s}
.tarjeta:hover{transform:translateY(-6px);box-shadow:0 26px 50px -26px rgba(16,16,136,.45);border-color:rgba(16,16,136,.35)}
.tarjeta__ico{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;color:var(--amber);background:linear-gradient(145deg,var(--indigo),#0b0b5e);margin-bottom:1.2rem;box-shadow:0 12px 24px -12px rgba(16,16,136,.7)}
.tarjeta__ico .ico{width:1.7rem;height:1.7rem}
.tarjeta h3{margin-bottom:.5rem}
.tarjeta p{color:var(--mut);font-size:1rem;flex:1}
.chips{list-style:none;margin:.4rem 0 0;padding:0;display:flex;flex-wrap:wrap;gap:.4rem}
.chips li{font-size:.76rem;font-weight:600;letter-spacing:.03em;padding:.3rem .65rem;border-radius:999px;background:#eef0ff;color:var(--indigo)}

/* Bandas parallax */
.banda{min-height:78vh;display:flex;align-items:center;color:#fff;padding:6rem 0}
.banda__in{position:relative;z-index:1;max-width:760px;margin-left:max(1.25rem,calc((100% - 1200px)/2))}
.banda h2{font-size:clamp(3rem,8vw,6.4rem);margin-bottom:.2em}
.banda .lead{margin-bottom:2rem}

/* Pasos */
.pasos{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:1.6rem;counter-reset:p;position:relative}
.paso{position:relative;padding-top:1.4rem;border-top:2px solid var(--indigo)}
.paso__n{font:600 3.6rem/1 var(--serif);color:var(--indigo);opacity:.18;position:absolute;right:0;top:.8rem}
.paso h3{margin-top:.8rem}
.paso p{color:var(--mut);margin:0;max-width:30ch}

/* Papeles */
.oscura{color:#fff;padding:clamp(4.5rem,10vw,8rem) 0}
.oscura__in{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(2rem,6vw,5rem);align-items:center}
.papeles{list-style:none;margin:0;padding:0;display:grid;gap:.7rem}
.papeles li{display:flex;gap:.9rem;align-items:center;padding:1rem 1.2rem;border-radius:14px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(4px);font-weight:500}
.papeles .ico{color:var(--ink);background:var(--amber);border-radius:50%;padding:.28rem;width:1.7rem;height:1.7rem;stroke-width:2.4}

/* FAQ */
.faq details{border-bottom:1px solid var(--line);padding:1.1rem 0}
.faq summary{cursor:pointer;list-style:none;font:600 1.25rem/1.3 var(--serif);display:flex;justify-content:space-between;gap:1rem;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font:300 2rem/1 var(--sans);color:var(--indigo);transition:transform .3s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{color:var(--mut);margin:.8rem 0 .2rem;max-width:62ch}

/* Empresa */
.empresa{display:grid;grid-template-columns:280px 1fr;gap:clamp(2rem,6vw,5rem);align-items:center}
.empresa__logo{background:#fff;border-radius:var(--radio);padding:2rem;box-shadow:0 30px 60px -40px rgba(16,16,136,.5)}
.empresa__logo img{width:100%;height:auto}
.datos{margin:1.6rem 0 0;display:grid;gap:.9rem}
.datos div{border-left:3px solid var(--amber);padding-left:1rem}
.datos dt{font:600 .72rem/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--mut);margin-bottom:.3rem}
.datos dd{margin:0;font-size:.95rem}

/* Contacto */
.contacto{color:#fff;padding:clamp(4.5rem,10vw,8rem) 0}
.contacto__in{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(2rem,6vw,5rem);align-items:start}
.contacto h2{margin-bottom:.4em}
.contacto__datos{list-style:none;margin:2rem 0 0;padding:0;display:grid;gap:1rem}
.contacto__datos li{display:flex;gap:.9rem;align-items:flex-start}
.contacto__datos .ico{color:var(--amber);margin-top:.2rem}
.contacto__datos a{color:#fff;text-underline-offset:3px}
.form{background:#fff;color:var(--text);border-radius:22px;padding:clamp(1.4rem,3vw,2.3rem);box-shadow:0 40px 80px -30px rgba(0,0,0,.6);display:grid;gap:1rem}
.form__fila{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.form label{display:grid;gap:.35rem;font-size:.85rem;font-weight:600;color:var(--mut)}
.form input,.form select,.form textarea{font:inherit;font-size:1rem;font-weight:400;color:var(--text);background:#f7f7fb;border:1.5px solid #dcdcec;border-radius:12px;padding:.8rem .9rem;width:100%;transition:border-color .2s,box-shadow .2s,background .2s}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--indigo);background:#fff;box-shadow:0 0 0 4px rgba(16,16,136,.14)}
.form input:user-invalid,.form textarea:user-invalid{border-color:#c0392b}
.form .check{display:flex;gap:.7rem;align-items:flex-start;font-weight:400;font-size:.85rem;line-height:1.45}
.form .check input{width:1.2rem;height:1.2rem;margin-top:.15rem;flex:none;accent-color:var(--indigo)}
.trampa{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.aviso{margin:0;padding:.9rem 1.1rem;border-radius:12px;font-weight:500}
.aviso--ok{background:#e6f6ee;color:#0f5132}
.aviso--mal{background:#fdecea;color:#842029}
.form__nota{margin:0;font-size:.9rem;min-height:1.2em}

/* Pie */
.pie{background:var(--ink);color:rgba(255,255,255,.78);font-size:.95rem}
.pie a{color:#fff;text-underline-offset:3px}
.pie__in{display:grid;grid-template-columns:1.1fr 1.2fr 1fr 1fr;gap:2rem;padding:3.5rem 0 2.5rem}
.pie__marca img{margin-bottom:1rem;opacity:.95}
.pie__h{font:600 .75rem/1 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--amber);margin:0 0 1rem}
.pie__lista{list-style:none;margin:0;padding:0;display:grid;gap:.5rem}
.pie__fin{border-top:1px solid rgba(255,255,255,.1);padding:1.1rem 0;font-size:.8rem;color:rgba(255,255,255,.55)}

/* Páginas interiores / legales */
.pagina{padding:9rem 0 5rem;background:var(--paper)}
.pagina h1{font-size:clamp(2rem,4vw,3rem);color:var(--ink)}
.pagina h2{font-size:1.5rem;margin-top:2rem}
.pagina p,.pagina li{max-width:70ch}
.pagina ul{padding-left:1.2rem}

/* Aparición al hacer scroll (solo si hay JS) */
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease) var(--d,0ms),transform .9s var(--ease) var(--d,0ms)}
.js .reveal.visto{opacity:1;transform:none}

@media (max-width:1000px){
  .rejilla{grid-template-columns:repeat(2,1fr)}
  .pasos{grid-template-columns:repeat(2,1fr)}
  .confianza__lista{grid-template-columns:repeat(2,1fr)}
  .oscura__in,.contacto__in,.empresa{grid-template-columns:1fr}
  .empresa__logo{max-width:240px}
  .pie__in{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .menu-btn{display:block}
  .menu{position:fixed;inset:64px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;background:rgba(7,10,43,.98);padding:.5rem 1.25rem 1.5rem;transform:translateY(-12px);opacity:0;visibility:hidden;transition:opacity .25s,transform .25s,visibility .25s}
  .menu.abierto{opacity:1;transform:none;visibility:visible}
  .menu a{padding:1rem 0;border-bottom:1px solid rgba(255,255,255,.1);font-size:1.1rem}
  .menu a::after{display:none}
  .menu .btn{margin-top:1rem;justify-content:center;border:0}
  .cab{background:rgba(7,10,43,.92)}
  .cab__in{height:64px}
  .marca__logo{height:40px}
  .capa--cuerdas{right:-4%;width:32vw;opacity:.5}
}
@media (max-width:620px){
  .rejilla,.pasos,.form__fila,.pie__in{grid-template-columns:1fr}
  .confianza__lista{grid-template-columns:1fr;gap:1.1rem}
  .hero{padding-top:6.5rem}
  .hero__cta .btn{width:100%;justify-content:center}
  }
@media (prefers-reduced-motion:reduce){
  .cuerdas__mov,  .js .reveal{opacity:1;transform:none;transition:none}
  .tarjeta,.btn{transition:none}
}
@media print{.cab,.hero__bajar,.capa{display:none}.hero,.banda,.oscura,.contacto{color:#000}}