/* ============================================================================
   base.css — Hotel Sierra Clara · sistema (reset + tipografía + layout + componentes)
   Consume tokens.css. Tema editorial claro. Componentes firma → site.css
   ========================================================================== */

/* ---- 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(--gold-deep);outline-offset:3px;border-radius:2px}
::selection{background:var(--green);color:var(--surface)}

/* ---- Tipografía ----------------------------------------------------------- */
h1,h2,h3,h4{font-family:var(--font-display);font-weight:var(--weight-display);line-height:var(--lh-tight);letter-spacing:0}
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:66ch}
.lead{font-size:var(--fs-600);color:var(--muted);line-height:1.6;max-width:54ch;font-weight:400}
.eyebrow{display:inline-flex;align-items:center;gap:.7rem;font-family:var(--font-body);
  font-size:var(--fs-300);text-transform:uppercase;letter-spacing:var(--tracking-label);
  color:var(--gold-deep);font-weight:700}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--gold-deep);display:inline-block}
.eyebrow.center{justify-content:center}
.muted{color:var(--muted)}
.mono{font-family:var(--font-mono)}
strong{font-weight:700}

/* ---- Layout --------------------------------------------------------------- */
.container{width:min(100% - var(--gutter)*2, var(--container));margin-inline:auto}
.container--wide{--container:1400px}
.section{padding-block:var(--section-y)}
.section--tint{background:var(--surface-2)}
.section--green{background:var(--green);color:var(--surface)}
.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(260px,1fr))}
.flex{display:flex;gap:var(--space-2);align-items:center}
.flex-wrap{flex-wrap:wrap}
.between{justify-content:space-between}
.center{text-align:center}
.mx-auto{margin-inline:auto}
@media (max-width:900px){.grid-2,.grid-4{grid-template-columns:1fr}.grid-3{grid-template-columns:repeat(2,1fr)}.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.grid-3,.grid-4{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:1.1rem var(--gutter);transition:background var(--dur),backdrop-filter var(--dur),border-color var(--dur),padding var(--dur);
  border-bottom:1px solid transparent}
.nav.scrolled{background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(14px) saturate(130%);
  border-bottom-color:var(--line);padding-block:.7rem}
/* hero oscuro: nav clara hasta hacer scroll */
.nav--over{color:var(--surface)}
.nav--over:not(.scrolled) .nav__links a{color:rgba(255,255,255,.86)}
.nav--over:not(.scrolled) .nav__links a:hover,.nav--over:not(.scrolled) .nav__links a.active{color:#fff}
.nav--over:not(.scrolled) .brand__name{color:#fff}
.nav--over:not(.scrolled) .brand__stars{color:var(--gold)}
.nav--over:not(.scrolled) .btn--ghost{border-color:rgba(255,255,255,.5);color:#fff}
.nav--over:not(.scrolled) .nav__toggle{color:#fff}
.nav__links{display:flex;gap:var(--space-3);align-items:center}
.nav__links a{font-size:var(--fs-400);color:var(--text);font-weight:500;letter-spacing:.01em;transition:color var(--dur-fast)}
.nav__links a:not(.btn){position:relative}
.nav__links a:not(.btn)::after{content:"";position:absolute;left:0;bottom:-4px;width:0;height:1px;background:var(--gold-deep);transition:width var(--dur) var(--ease)}
.nav__links a:not(.btn):hover::after,.nav__links a.active::after{width:100%}
.nav__links a.active{color:var(--gold-deep)}
.nav__toggle{display:none;background:none;border:0;cursor:pointer;padding:.4rem;color:var(--text)}
.nav__toggle svg{width:26px;height:26px}
@media (max-width:920px){
  .nav__toggle{display:block}
  .nav__links{position:fixed;inset:0;flex-direction:column;justify-content:center;gap:var(--space-4);
    background:var(--green);color:var(--surface);transform:translateX(100%);
    transition:transform var(--dur) var(--ease);z-index:var(--z-overlay)}
  .nav__links a{font-size:var(--fs-700);font-family:var(--font-display);color:var(--surface)}
  .nav__links a:not(.btn)::after{display:none}
  .nav__links .btn{font-family:var(--font-body)}
  body.menu-open{overflow:hidden}
  body.menu-open .nav__links{transform:none}
}

/* ---- Botones -------------------------------------------------------------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.6rem;padding:.95rem 1.7rem;
  border-radius:var(--radius);font-family:var(--font-body);font-weight:600;font-size:var(--fs-400);
  letter-spacing:.02em;cursor:pointer;border:1px solid transparent;line-height:1;
  transition:transform var(--dur-fast) var(--ease),background var(--dur-fast),color var(--dur-fast),box-shadow var(--dur-fast),border-color var(--dur-fast)}
.btn svg{width:18px;height:18px}
.btn:hover{transform:translateY(-2px)}
.btn--primary{background:var(--green);color:var(--accent-ink);box-shadow:var(--shadow-sm)}
.btn--primary:hover{background:var(--green-2);box-shadow:var(--shadow)}
.btn--gold{background:var(--gold);color:var(--green);box-shadow:var(--shadow-sm)}
.btn--gold:hover{background:#d2b35f;box-shadow:var(--shadow)}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn--ghost:hover{border-color:var(--gold-deep);color:var(--gold-deep)}
.btn--lg{padding:1.1rem 2.1rem;font-size:var(--fs-500)}

/* ---- Tarjetas base -------------------------------------------------------- */
.card{background:var(--surface);border:var(--border);border-radius:var(--radius);padding:var(--space-4);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur),border-color var(--dur)}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:color-mix(in srgb,var(--gold) 55%,var(--line))}
.card__icon{display:inline-block;width:40px;height:40px;color:var(--gold-deep);margin-bottom:var(--space-2)}
.card__icon svg{width:100%;height:100%;stroke-width:1.3}
.card h3{margin-bottom:.4rem}

/* ---- 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:.82;transition:opacity var(--dur-fast),color var(--dur-fast)}
.footer a:hover{opacity:1;color:var(--gold)}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:var(--space-4)}
.footer h4{font-family:var(--font-body);font-size:var(--fs-300);text-transform:uppercase;letter-spacing:var(--tracking-label);
  color:var(--gold);font-weight:700;margin-bottom:var(--space-2)}
.footer__links{display:flex;flex-direction:column;gap:.6rem;font-size:var(--fs-400)}
.footer__links a{display:flex;align-items:center;gap:.6rem}
.footer__links svg{width:17px;height:17px;color:var(--gold);opacity:.9;flex:none}
@media (max-width:820px){.footer__grid{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.footer__grid{grid-template-columns:1fr}}
.footer__bottom{margin-top:var(--space-5);padding-top:var(--space-3);
  border-top:1px solid color-mix(in srgb,var(--footer-text) 20%,transparent);
  font-size:var(--fs-300);opacity:.75;display:flex;justify-content:space-between;flex-wrap:wrap;gap:var(--space-2)}

/* ---- Animaciones de revelado --------------------------------------------- */
.reveal{opacity:0;transform:translateY(28px);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:.06em}
.t-clip>span{display:block;transform:translateY(110%);transition:transform var(--dur-slow) var(--ease)}
.t-clip.in>span{transform:none}
.img-clip{overflow:hidden}
.img-clip>img,.img-clip>picture>img{clip-path:inset(0 0 100% 0);transition:clip-path 1.1s var(--ease-inout),transform 1.4s var(--ease-inout);transform:scale(1.06)}
.img-clip.in>img,.img-clip.in>picture>img{clip-path:inset(0 0 0 0);transform:scale(1)}
.progress{position:fixed;inset:0 0 auto;height:2px;background:var(--gold);transform:scaleX(0);transform-origin:0;z-index:var(--z-nav)}

/* ---- prefers-reduced-motion ---------------------------------------------- */
@media (prefers-reduced-motion: reduce){
  .reveal,.t-clip>span{opacity:1;transform:none;transition:none}
  .img-clip>img,.img-clip>picture>img{clip-path:none;transform:none;transition:none}
  .btn:hover,.card:hover{transform:none}
  *{scroll-behavior:auto !important}
}