/* base.css — Mattera Systems · reset y componentes base (subpáginas) */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{border:none;background:none;font:inherit;cursor:pointer}
ul{list-style:none}
:root{
  --bg:#1E2318;--bg-warm:#2B3122;--bg-dark:#151910;
  --ink:#F2EFE6;--ink-2:#A8AC97;--ink-3:rgba(242,239,230,.45);
  --accent:#B5BAA3;--accent-soft:rgba(181,186,163,.12);
  --accent-orange:#FCA311;--accent-orange-soft:rgba(252,163,17,.10);
  --line:#F2EFE6;--line-soft:rgba(168,172,151,.25);
  --paper:#EFEFE3;--paper-ink:#686D5C;
  --serif:"Fraunces","Georgia",serif;
  --display:"Inter","system-ui",sans-serif;
  --body:"Inter","system-ui",sans-serif;
  --mono:"JetBrains Mono","ui-monospace",monospace;
  --s-section:clamp(80px,12vw,160px);--max-w:1280px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
.skip-link{position:absolute;top:-100px;left:1rem;z-index:10000;background:var(--accent);color:var(--bg);padding:.5rem 1rem;font-weight:700;border-radius:0 0 4px 4px;transition:top .2s}
.skip-link:focus{top:0}
nav{display:flex;align-items:center;justify-content:space-between;max-width:var(--max-w);margin:0 auto;padding:1.75rem 2rem;position:relative;z-index:100}
.nav-logo{display:flex;align-items:center;gap:.65rem}
.nav-logo img{height:28px;width:auto}
.nav-logo-word{font-family:var(--display);font-weight:800;font-size:1.05rem;letter-spacing:-.03em;color:var(--ink)}
.nav-links{display:flex;align-items:center;gap:2.25rem}
.nav-links a{font-family:var(--mono);font-size:.72rem;font-weight:500;color:var(--ink-2);letter-spacing:.05em;text-transform:uppercase;transition:color .2s}
.nav-links a:hover{color:var(--ink)}
.nav-cta{display:inline-flex;align-items:center;gap:.4rem;font-family:var(--mono);font-size:.72rem;font-weight:500;letter-spacing:.05em;text-transform:uppercase;border:1.5px solid var(--accent);padding:.6rem 1.25rem;color:var(--accent);position:relative;overflow:hidden;transition:color .25s}
.nav-cta::before{content:'';position:absolute;inset:0;background:var(--accent);transform:translateX(-101%);transition:transform .25s var(--ease)}
.nav-cta:hover{color:var(--bg)}
.nav-cta:hover::before{transform:translateX(0)}
.nav-cta span{position:relative;z-index:1}
.nav-burger{display:none;flex-direction:column;gap:5px;padding:.5rem;background:none;border:none;cursor:pointer}
.nav-burger span{display:block;width:22px;height:1.5px;background:var(--ink);transition:.3s}
.mobile-nav{position:fixed;inset:0;background:var(--bg);z-index:500;display:none;flex-direction:column;justify-content:center;align-items:center;gap:2.5rem;overflow-y:auto;padding:2rem}
.mobile-nav.open{display:flex}
.mobile-nav>a{font-family:var(--serif);font-style:italic;font-size:2.25rem;color:var(--ink);transition:color .2s}
.mobile-nav>a:hover{color:var(--accent)}
.mobile-nav-close{position:absolute;top:1.5rem;right:1.5rem;font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);background:none;border:none;cursor:pointer}
.btn-primary{display:inline-flex;align-items:center;gap:.45rem;background:var(--accent-orange);color:var(--bg-dark);font-family:var(--mono);font-size:.75rem;font-weight:500;letter-spacing:.06em;text-transform:uppercase;padding:.85rem 1.75rem;position:relative;overflow:hidden;transition:transform .2s var(--ease);border-radius:8px}
.btn-primary::before{content:'';position:absolute;inset:0;background:rgba(255,255,255,.12);transform:translateX(-101%);transition:transform .25s var(--ease)}
.btn-primary:hover{transform:translateY(-1px)}
.btn-primary:hover::before{transform:translateX(0)}
.btn-primary span{position:relative;z-index:1}
.btn-ghost{font-family:var(--body);font-size:.92rem;font-weight:500;color:var(--ink);border-bottom:1.5px solid var(--ink);padding-bottom:1px;transition:color .2s,border-color .2s}
.btn-ghost:hover{color:var(--accent);border-color:var(--accent)}
.btn-outline{display:inline-flex;align-items:center;gap:.45rem;font-family:var(--mono);font-size:.75rem;font-weight:500;letter-spacing:.06em;text-transform:uppercase;border:1.5px solid var(--ink);padding:.85rem 1.75rem;color:var(--ink);position:relative;overflow:hidden;transition:color .25s;border-radius:8px}
.btn-outline::before{content:'';position:absolute;inset:0;background:var(--ink);transform:translateX(-101%);transition:transform .25s var(--ease)}
.btn-outline:hover{color:var(--bg)}
.btn-outline:hover::before{transform:translateX(0)}
.btn-outline span{position:relative;z-index:1}
.divider{border:none;border-top:1.5px solid var(--line-soft);max-width:var(--max-w);margin:0 auto}
.section{padding:var(--s-section) 2rem;max-width:var(--max-w);margin:0 auto}
.section-eyebrow{font-family:var(--mono);font-size:.68rem;font-weight:500;letter-spacing:.14em;color:var(--ink-3);text-transform:uppercase;margin-bottom:1.5rem;display:flex;align-items:center;gap:.75rem}
.section-eyebrow::after{content:'';flex:1;height:1.5px;background:var(--line-soft);max-width:48px}
.section-title{font-family:var(--serif);font-style:italic;font-weight:300;font-size:clamp(28px,4.5vw,66px);line-height:1.1;letter-spacing:-.02em;margin-bottom:1rem;color:var(--ink)}
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;margin-top:3rem}
.why-block{padding:2.25rem;background:var(--bg-warm);border:1.5px solid var(--line-soft);transition:transform .22s var(--ease),border-color .22s,box-shadow .22s}
.why-block:hover{border-color:rgba(181,186,163,.45);transform:translateY(-4px);box-shadow:0 10px 32px rgba(0,0,0,.28)}
.why-icon{width:36px;height:36px;margin-bottom:1.5rem;color:var(--accent)}
.why-block-title{font-family:var(--serif);font-style:italic;font-weight:300;font-size:1.3rem;line-height:1.2;margin-bottom:.85rem;letter-spacing:-.01em}
.why-body{font-size:.875rem;line-height:1.75;color:var(--ink-2)}
.faq-list{border:1.5px solid var(--line-soft);margin-top:2rem;background:var(--bg-warm)}
.faq-item{border-bottom:1.5px solid var(--line-soft)}
.faq-btn{display:flex;justify-content:space-between;align-items:center;width:100%;padding:1.4rem 1.5rem;text-align:left;font-family:var(--display);font-weight:600;font-size:.95rem;letter-spacing:-.02em;color:var(--ink);transition:color .2s}
.faq-btn:hover,.faq-btn[aria-expanded="true"]{color:var(--accent)}
.faq-icon{width:18px;height:18px;flex-shrink:0;border:1.5px solid currentColor;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.75rem;transition:transform .3s var(--ease)}
.faq-btn[aria-expanded="true"] .faq-icon{transform:rotate(45deg)}
.faq-answer{font-size:.875rem;line-height:1.75;color:var(--ink-2);max-height:0;overflow:hidden;padding:0 1.5rem;transition:max-height .4s var(--ease),padding .3s}
.faq-answer.open{max-height:300px;padding:0 1.5rem 1.4rem}
.cta-final{padding:var(--s-section) 2rem;max-width:var(--max-w);margin:0 auto;text-align:center}
.cta-final-line{font-family:var(--serif);font-style:italic;font-weight:300;font-size:clamp(30px,5vw,80px);line-height:1.1;letter-spacing:-.02em;max-width:22ch;margin:0 auto 2.75rem;color:var(--ink)}
.cta-final-btns{display:flex;align-items:center;justify-content:center;gap:1.25rem;flex-wrap:wrap}
.cta-microcopy{margin-top:1.25rem;font-family:var(--mono);font-size:.65rem;color:var(--ink-3);letter-spacing:.07em}
.section-dark{background:var(--bg-dark);color:var(--ink);padding:var(--s-section) 2rem}
.section-dark .inner{max-width:var(--max-w);margin:0 auto}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem;position:relative;margin-top:4rem}
.timeline::before{content:'';position:absolute;top:22px;left:calc(12.5% + 16px);right:calc(12.5% + 16px);height:1px;background:var(--line-soft);z-index:0}
.timeline-node{display:flex;flex-direction:column;align-items:flex-start;padding:1.75rem 1.5rem;background:var(--bg-warm);border:1.5px solid var(--line-soft);transition:border-color .22s,box-shadow .22s}
.timeline-phase{font-family:var(--mono);font-size:.62rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-bottom:.4rem}
.timeline-title{font-family:var(--display);font-weight:700;font-size:.95rem;letter-spacing:-.02em;margin-bottom:.65rem}
.timeline-desc{font-size:.83rem;line-height:1.65;color:var(--ink-2)}
footer{background:var(--bg-dark);color:var(--ink);padding:5rem 2rem 2rem}
.footer-inner{max-width:var(--max-w);margin:0 auto}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:3rem;padding-bottom:3.5rem;border-bottom:1.5px solid var(--line-soft)}
.footer-logo-wrap{display:flex;align-items:center;gap:.85rem;margin-bottom:.85rem}
.footer-logo-wrap img{height:30px}
.footer-logo-word{font-family:var(--serif);font-style:italic;font-size:1.85rem;color:var(--ink);letter-spacing:-.02em}
.footer-tagline{font-size:.83rem;line-height:1.7;color:var(--ink-3);max-width:26ch}
.footer-addr{margin-top:.85rem;font-family:var(--mono);font-size:.63rem;letter-spacing:.06em;color:var(--ink-3)}
.footer-col h4{font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin-bottom:1.1rem}
.footer-col a{display:block;font-size:.83rem;color:var(--ink-2);margin-bottom:.6rem;transition:color .2s}
.footer-col a:hover{color:var(--ink)}
.footer-bottom{margin-top:2rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}
.footer-copy,.footer-build{font-family:var(--mono);font-size:.62rem;letter-spacing:.06em;color:var(--ink-3)}
.footer-privacy{font-family:var(--mono);font-size:.62rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);transition:color .2s}
.footer-privacy:hover{color:var(--ink-2)}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .65s var(--ease),transform .65s var(--ease)}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-delay-1{transition-delay:.08s}.reveal-delay-2{transition-delay:.16s}
.reveal-delay-3{transition-delay:.24s}.reveal-delay-4{transition-delay:.32s}
@media(max-width:1024px){
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .nav-links,.nav-cta{display:none}
  .nav-burger{display:flex}
  .why-grid{grid-template-columns:1fr}
  .why-block{padding:1.75rem}
  .timeline{grid-template-columns:1fr;gap:2rem}
  .timeline::before{display:none}
  .section{padding:clamp(56px,10vw,96px) 1.25rem}
  .section-dark{padding:clamp(56px,10vw,96px) 1.25rem}
  nav{padding:1.25rem}
  .cta-final{padding:clamp(56px,10vw,96px) 1.25rem}
  footer{padding:3rem 1.25rem 1.5rem}
  .footer-top{grid-template-columns:1fr}
}
@media(max-width:480px){
  .cta-final-btns{flex-direction:column;align-items:stretch}
  .btn-primary,.btn-outline{justify-content:center;text-align:center}
}