/* ============================================================================
   base.css — sistema (reset + tipografía + layout + componentes + utilidades)
   Consume tokens.css. Reutilizable entre arquetipos; la personalidad la dan los
   tokens. Añade aquí solo lo estructural, no colores hardcodeados.
   ========================================================================== */

/* ---- Reset ---------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
*{margin:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}
body{
  font-family:var(--font-body);font-size:var(--fs-500);line-height:var(--lh-body);
  color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;overflow-x:hidden;
}
img,picture,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
::selection{background:var(--accent);color:var(--accent-ink)}

/* ---- Tipografía ----------------------------------------------------------- */
h1,h2,h3,h4{font-family:var(--font-display);font-weight:var(--weight-display);line-height:var(--lh-tight);letter-spacing:-.01em}
h1{font-size:var(--fs-900)}
h2{font-size:var(--fs-800)}
h3{font-size:var(--fs-700);line-height:var(--lh-snug)}
p{max-width:64ch}
.lead{font-size:var(--fs-600);color:var(--muted);line-height:var(--lh-snug);max-width:56ch}
.eyebrow{font-size:var(--fs-300);text-transform:uppercase;letter-spacing:var(--tracking-label);color:var(--accent);font-weight:var(--weight-strong)}
.muted{color:var(--muted)}
.mono{font-family:var(--font-mono)}

/* ---- Layout --------------------------------------------------------------- */
.container{width:min(100% - var(--gutter)*2, var(--container));margin-inline:auto}
.section{padding-block:var(--section-y)}
.stack > * + *{margin-top:var(--space-3)}
.grid{display:grid;gap:var(--space-4)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.cols-auto{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.flex{display:flex;gap:var(--space-2);align-items:center}
.between{justify-content:space-between}
.center{text-align:center;margin-inline:auto}
@media (max-width:900px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.grid-3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.grid-3{grid-template-columns:1fr}}

/* ---- Navegación ----------------------------------------------------------- */
.nav{position:fixed;inset:0 0 auto;z-index:var(--z-nav);display:flex;align-items:center;justify-content:space-between;
  padding:1rem var(--gutter);transition:background var(--dur),backdrop-filter var(--dur),border-color var(--dur);border-bottom:1px solid transparent}
.nav.scrolled{background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(14px) saturate(140%);border-bottom-color:var(--line)}
.nav__brand{font-family:var(--font-display);font-weight:var(--weight-strong);font-size:1.15rem;letter-spacing:-.02em}
.nav__links{display:flex;gap:var(--space-3);align-items:center}
.nav__links a{font-size:var(--fs-400);color:var(--muted);transition:color var(--dur-fast)}
.nav__links a:hover,.nav__links a.active{color:var(--text)}
.nav__toggle{display:none;background:none;border:0;cursor:pointer;padding:.5rem}
@media (max-width:820px){
  .nav__toggle{display:block}
  .nav__links{position:fixed;inset:0;flex-direction:column;justify-content:center;gap:var(--space-4);
    background:var(--bg);transform:translateX(100%);transition:transform var(--dur) var(--ease);z-index:var(--z-overlay)}
  .nav__links a{font-size:var(--fs-700)}
  body.menu-open .nav__links{transform:none}
}

/* ---- Botones -------------------------------------------------------------- */
.btn{display:inline-flex;align-items:center;gap:.55rem;padding:.85rem 1.5rem;border-radius:var(--radius-pill);
  font-weight:var(--weight-strong);font-size:var(--fs-400);cursor:pointer;border:1px solid transparent;
  transition:transform var(--dur-fast) var(--ease),background var(--dur-fast),box-shadow var(--dur-fast)}
.btn:hover{transform:translateY(-2px)}
.btn--primary{background:var(--accent);color:var(--accent-ink);box-shadow:var(--shadow-sm)}
.btn--primary:hover{box-shadow:var(--shadow)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}

/* ---- Tarjetas ------------------------------------------------------------- */
.card{background:var(--surface);border:var(--border);border-radius:var(--radius-lg);padding:var(--space-4);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur),border-color var(--dur)}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:color-mix(in srgb,var(--accent) 40%,var(--line))}
.card__icon{width:44px;height:44px;color:var(--accent);margin-bottom:var(--space-2)}
.card h3{margin-bottom:var(--space-1)}

/* ---- Hero ----------------------------------------------------------------- */
.hero{position:relative;min-height:100svh;display:grid;align-items:center;padding-top:6rem;overflow:hidden}
.hero__inner{position:relative;z-index:2;max-width:48rem}
.hero h1{margin-bottom:var(--space-3)}
.hero__media{position:absolute;inset:0;z-index:0}
.hero__media img{width:100%;height:100%;object-fit:cover}
.hero__media::after{content:"";position:absolute;inset:0;background:linear-gradient(to right,var(--bg) 12%,transparent 70%)}

/* ---- Footer --------------------------------------------------------------- */
.footer{background:var(--footer-bg);color:var(--footer-text);padding-block:var(--space-6) var(--space-4)}
.footer a{color:var(--footer-text);opacity:.8;transition:opacity var(--dur-fast)}
.footer a:hover{opacity:1}
.footer__grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:var(--space-4)}
@media (max-width:820px){.footer__grid{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.footer__grid{grid-template-columns:1fr;gap:var(--space-3)}}
.footer__bottom{margin-top:var(--space-5);padding-top:var(--space-3);border-top:1px solid color-mix(in srgb,var(--footer-text) 18%,transparent);font-size:var(--fs-300);opacity:.7;display:flex;justify-content:space-between;flex-wrap:wrap;gap:var(--space-2)}

/* ---- Marquee / logowall (arquetipo industrial) ---------------------------- */
.marquee{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee__track{display:flex;gap:var(--space-5);width:max-content;align-items:center;animation:marquee 28s linear infinite}
.marquee:hover .marquee__track{animation-play-state:paused}
@keyframes marquee{from{transform:translate3d(0,0,0)}to{transform:translate3d(-50%,0,0)}}

/* ---- Animaciones de revelado (consumidas por main.js) --------------------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity var(--dur-slow) var(--ease),transform var(--dur-slow) var(--ease)}
.reveal.in{opacity:1;transform:none}
.t-clip{overflow:hidden;padding-block:.05em}
.t-clip>span{display:inline-block;transform:translateY(110%);transition:transform var(--dur-slow) var(--ease)}
.t-clip.in>span{transform:none}
.img-clip{clip-path:inset(0 100% 0 0);transition:clip-path 1s var(--ease-inout)}
.img-clip.in{clip-path:inset(0 0 0 0)}
.progress{position:fixed;inset:0 0 auto;height:3px;background:var(--accent);transform:scaleX(0);transform-origin:0;z-index:var(--z-nav)}

/* ---- prefers-reduced-motion: apaga TODO movimiento no esencial ------------ */
@media (prefers-reduced-motion: reduce){
  .reveal,.t-clip>span,.img-clip{opacity:1;transform:none;clip-path:none;transition:none}
  .marquee__track{animation:none}
  .btn:hover,.card:hover{transform:none}
  *{scroll-behavior:auto !important}
}