/* =========================================================
   CETURSA SIERRA NEVADA, S.A. — hoja de estilos
   Sistema: "plano de pistas / mapa topográfico" —
   curvas de nivel, altitud y leyenda como lenguaje visual.
   ========================================================= */

:root{
  --snow:      #F4F6F8;
  --surface:   #FFFFFF;
  --surface-2: #E8EDF0;
  --night:     #0F2038;   /* cielo de montaña al anochecer */
  --night-2:   #163358;
  --ink:       #12203A;
  --ink-soft:  #52606E;
  --amber:     #E08A3C;   /* alpenglow — luz del atardecer sobre las cumbres */
  --amber-dark:#B06A26;
  --ice:       #2F86A6;   /* hielo / cable de telesilla */
  --line:      #D5DBE0;
  --line-strong:#B7C0C7;

  /* colores de pista, tomados de la señalética real de estaciones de esquí */
  --piste-green:#3E8E52;
  --piste-blue: #2E6FB3;
  --piste-red:  #C13B2C;
  --piste-black:#20242B;

  --font-display: 'Fjalla One', 'Arial Narrow', sans-serif;
  --font-body: 'Work Sans', 'Segoe UI', sans-serif;
  --font-mono: 'Space Mono', 'Consolas', monospace;

  --maxw: 1180px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

body{
  margin:0;
  background:var(--snow);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16.5px;
  line-height:1.62;
}

::selection{ background:var(--amber); color:#fff; }

a{ color:inherit; }
img{ max-width:100%; display:block; }

.wrap{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 28px;
}

/* ---------- Eyebrow (cota / referencia de altitud) ---------- */
.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--ice);
  display:flex;
  align-items:center;
  gap:10px;
  margin:0 0 14px;
}
.eyebrow::before{
  content:"";
  width:22px; height:2px;
  background:var(--amber);
  display:inline-block;
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:400;
  letter-spacing:.005em;
  margin:0 0 .45em;
  color:var(--night);
  line-height:1.06;
}

/* ---------- Skip link ---------- */
.skip-link{
  position:absolute; left:-999px; top:0;
  background:var(--night); color:#fff;
  padding:10px 16px; z-index:999;
  font-family:var(--font-mono); font-size:13px;
}
.skip-link:focus{ left:12px; top:12px; }

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(244,246,248,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line-strong);
}
.nav-row{
  display:flex; align-items:center; justify-content:space-between;
  padding:15px 28px;
  max-width:var(--maxw); margin:0 auto;
}
.brand{
  display:flex; align-items:center; gap:12px;
  text-decoration:none; color:var(--night);
}
.brand-mark{ width:36px; height:36px; flex:none; }
.brand-text{ font-family:var(--font-display); font-size:20px; letter-spacing:.01em; line-height:1; }
.brand-text small{
  display:block;
  font-family:var(--font-mono);
  font-size:9.5px;
  letter-spacing:.1em;
  color:var(--ink-soft);
  text-transform:uppercase;
  margin-top:4px;
}

.nav-links{
  display:flex; gap:28px; list-style:none; margin:0; padding:0;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.02em;
}
.nav-links a{
  text-decoration:none; color:var(--ink-soft);
  padding:6px 2px;
  border-bottom:2px solid transparent;
  transition:color .15s, border-color .15s;
}
.nav-links a:hover, .nav-links a:focus-visible{
  color:var(--night); border-color:var(--amber);
}
.nav-cta{
  font-family:var(--font-mono);
  font-size:12.5px;
  border:1px solid var(--night);
  padding:9px 18px;
  text-decoration:none;
  color:var(--night);
  white-space:nowrap;
  transition:background .15s, color .15s;
}
.nav-cta:hover{ background:var(--night); color:#fff; }

.nav-toggle{
  display:none;
  background:none; border:1px solid var(--night); border-radius:0;
  width:42px; height:38px;
  cursor:pointer;
  position:relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:""; position:absolute; left:10px; right:10px; height:2px; background:var(--night);
}
.nav-toggle span{ top:18px; }
.nav-toggle span::before{ top:-7px; }
.nav-toggle span::after{ top:7px; }

/* ---------- Hero ---------- */
.hero{
  background:var(--night);
  color:#fff;
  padding:72px 0 58px;
  position:relative;
  overflow:hidden;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:48px;
  align-items:center;
  position:relative;
  z-index:1;
}
.hero .eyebrow{ color:var(--amber); }
.hero h1{
  font-size:clamp(2.3rem, 4.6vw, 3.7rem);
  color:#fff;
}
.hero h1 em{
  font-style:normal;
  color:var(--amber);
}
.hero p.lead{
  font-size:1.08rem;
  color:#C6D2DE;
  max-width:48ch;
  margin:0 0 28px;
}
.hero-meta{
  display:flex; gap:0; flex-wrap:wrap;
  margin-top:34px;
  border-top:1px solid rgba(255,255,255,.18);
}
.hero-meta div{
  padding:16px 26px 0 0;
  margin-right:26px;
  border-right:1px solid rgba(255,255,255,.18);
}
.hero-meta div:last-child{ border-right:none; }
.hero-meta div .k{
  font-family:var(--font-mono); font-size:10.5px; letter-spacing:.08em;
  text-transform:uppercase; color:#7E92A8; display:block; margin-bottom:6px;
}
.hero-meta div .v{ font-family:var(--font-display); font-size:1.35rem; color:#fff; }

.btn-row{ display:flex; gap:14px; flex-wrap:wrap; }
.btn{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-mono); font-size:13px;
  padding:13px 22px;
  text-decoration:none;
  border:1px solid var(--amber);
  color:var(--amber);
  transition:all .15s;
}
.btn.primary{ background:var(--amber); border-color:var(--amber); color:var(--night); font-weight:700; }
.btn.primary:hover{ background:#ee9a52; }
.btn:not(.primary):hover{ background:var(--amber); color:var(--night); }

/* ---------- Topographic schematic (elemento distintivo) ---------- */
.topo-card{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.16);
  padding:22px;
}
.topo-card svg{ width:100%; height:auto; display:block; }
.topo-cap{
  display:flex; justify-content:space-between; gap:12px;
  font-family:var(--font-mono); font-size:10px; letter-spacing:.05em;
  color:#7E92A8;
  text-transform:uppercase;
  margin-top:14px;
  padding-top:12px;
  border-top:1px dashed rgba(255,255,255,.2);
}

/* ---------- Section shell ---------- */
section{ padding:76px 0; border-top:1px solid var(--line); }
.section-head{
  display:flex; justify-content:space-between; align-items:flex-end;
  gap:24px; margin-bottom:42px; flex-wrap:wrap;
}
.section-head h2{ font-size:clamp(1.8rem, 3.2vw, 2.5rem); margin:0; }
.section-head p{ color:var(--ink-soft); max-width:46ch; margin:0; }

/* ---------- Pillars ---------- */
.pillars{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:1px;
  background:var(--line-strong);
  border:1px solid var(--line-strong);
}
.pillar{
  background:var(--surface);
  padding:32px 26px;
}
.pillar .mark{
  width:14px; height:14px; border-radius:50%;
  margin-bottom:16px;
}
.pillar h3{ font-size:1.12rem; }
.pillar p{ color:var(--ink-soft); margin:0; font-size:.96rem; }

/* ---------- Leyenda de actividad (categorías tipo mapa de pistas) ---------- */
.legend-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:1px;
  background:var(--line-strong);
  border:1px solid var(--line-strong);
}
.legend-card{
  background:var(--surface);
  padding:28px 28px 26px;
}
.legend-head{
  display:flex; align-items:center; gap:12px;
  margin-bottom:14px;
}
.legend-dot{
  width:20px; height:20px; flex:none;
  border-radius:50%;
}
.legend-dot.square{ border-radius:3px; }
.legend-dot.diamond{ border-radius:3px; transform:rotate(45deg); }
.legend-head h3{ font-size:1.08rem; margin:0; }
.legend-card ul{ margin:0; padding-left:20px; color:var(--ink-soft); font-size:.94rem; }
.legend-card li{ margin-bottom:6px; }
.legend-card li::marker{ color:var(--ink-soft); }

/* ---------- Data sheet (ficha registral) ---------- */
.datasheet{
  background:var(--surface);
  border:1px solid var(--line-strong);
  margin:0;
}
.datasheet-row{
  display:grid;
  grid-template-columns:240px 1fr;
  border-bottom:1px solid var(--line);
}
.datasheet-row:last-child{ border-bottom:none; }
.datasheet-row dt{
  font-family:var(--font-mono);
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:.05em;
  color:var(--ink-soft);
  padding:16px 20px;
  background:var(--surface-2);
  border-right:1px solid var(--line);
}
.datasheet-row dd{
  margin:0; padding:16px 20px;
  font-size:.98rem;
}

/* ---------- Contacto ---------- */
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1.15fr;
  gap:48px;
  align-items:start;
}
.contact-card{
  border:1px solid var(--line-strong);
  background:var(--surface);
  padding:30px;
}
.contact-card.dark{
  background:var(--night);
  border-color:var(--night);
  color:#fff;
}
.contact-card.dark h3{ color:#fff; }
.contact-card h3{ font-size:1.2rem; }
.contact-line{
  display:flex; gap:14px; padding:14px 0; border-bottom:1px solid rgba(0,0,0,.08);
  font-size:.96rem;
}
.contact-card.dark .contact-line{ border-bottom:1px solid rgba(255,255,255,.14); }
.contact-line:last-child{ border-bottom:none; }
.contact-line .k{
  font-family:var(--font-mono); font-size:11px; color:var(--amber-dark);
  text-transform:uppercase; letter-spacing:.05em; width:110px; flex:none; padding-top:2px;
}
.contact-card.dark .contact-line .k{ color:var(--amber); }
.contact-card.dark .contact-line a{ color:#fff; }

form.contact-form{ display:grid; gap:16px; }
.field{ display:grid; gap:6px; }
.field label{
  font-family:var(--font-mono); font-size:11.5px; letter-spacing:.04em;
  text-transform:uppercase; color:var(--ink-soft);
}
.field input, .field textarea, .field select{
  font-family:var(--font-body);
  font-size:.98rem;
  padding:12px 14px;
  border:1px solid var(--line-strong);
  background:var(--snow);
  color:var(--ink);
  border-radius:0;
  resize:vertical;
}
.field input:focus, .field textarea:focus, .field select:focus{
  outline:2px solid var(--amber); outline-offset:1px;
  border-color:var(--amber);
}
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.consent{
  display:flex; gap:10px; align-items:flex-start;
  font-size:.86rem; color:var(--ink-soft);
}
.consent input{ margin-top:4px; }
.consent a{ color:var(--ice); text-decoration:underline; }

.submit-row{ display:flex; align-items:center; gap:16px; flex-wrap:wrap; }
button.btn{
  font:inherit; font-family:var(--font-mono); font-size:13px;
  cursor:pointer; background:var(--night); color:#fff; border-color:var(--night);
}
button.btn:hover{ background:var(--night-2); }

.form-status{ font-family:var(--font-mono); font-size:12.5px; }
.form-status.ok{ color:var(--ice); }
.form-status.err{ color:var(--piste-red); }

/* ---------- Footer ---------- */
.site-footer{
  border-top:1px solid var(--line-strong);
  background:var(--night);
  color:#C6D2DE;
  padding:56px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.3fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.footer-col h4{
  font-family:var(--font-mono);
  font-size:11.5px; letter-spacing:.1em; text-transform:uppercase;
  color:var(--amber);
  margin-bottom:16px;
}
.footer-col p, .footer-col li{ color:#A9B8C7; font-size:.9rem; }
.footer-col ul{ list-style:none; margin:0; padding:0; display:grid; gap:10px; }
.footer-col a{ text-decoration:none; color:#A9B8C7; }
.footer-col a:hover{ color:#fff; text-decoration:underline; }
.footer-brand{
  font-family:var(--font-display); font-size:1.5rem; color:#fff;
  margin-bottom:10px; letter-spacing:.01em;
}
.legal-strip{
  display:flex; justify-content:space-between; align-items:center;
  flex-wrap:wrap; gap:14px;
  padding-top:22px;
  font-family:var(--font-mono); font-size:11px; color:#728294;
}
.legal-strip ul{ list-style:none; display:flex; gap:20px; margin:0; padding:0; flex-wrap:wrap; }
.legal-strip a{ color:#728294; text-decoration:none; }
.legal-strip a:hover{ color:#fff; }

/* ---------- Legal pages ---------- */
.legal-page{ padding:56px 0 90px; }
.legal-page .doc{
  background:var(--surface);
  border:1px solid var(--line-strong);
  padding:44px;
  max-width:820px;
}
.legal-page h1{ font-size:2.2rem; }
.legal-page h2{ font-size:1.15rem; margin-top:2em; font-family:var(--font-body); font-weight:700; }
.legal-page p, .legal-page li{ color:var(--ink-soft); }
.legal-page .updated{
  font-family:var(--font-mono); font-size:11.5px; color:var(--ink-soft);
  margin-bottom:30px; text-transform:uppercase; letter-spacing:.04em;
}
.legal-page ol, .legal-page ul{ padding-left:22px; }
.legal-page table{ width:100%; border-collapse:collapse; margin:18px 0; font-size:.92rem; }
.legal-page th, .legal-page td{ border:1px solid var(--line-strong); padding:10px 12px; text-align:left; }
.legal-page th{ background:var(--surface-2); font-family:var(--font-mono); font-size:11px; text-transform:uppercase; }

/* ---------- Cookie banner ---------- */
.cookie-banner{
  position:fixed; left:16px; right:16px; bottom:16px; z-index:200;
  max-width:640px; margin:0 auto;
  background:var(--night); color:#fff;
  border:1px solid var(--amber);
  padding:20px 22px;
  display:none;
  gap:16px;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
}
.cookie-banner.show{ display:flex; }
.cookie-banner p{ margin:0; font-size:.88rem; color:#C6D2DE; max-width:60ch; }
.cookie-banner a{ color:#fff; text-decoration:underline; }
.cookie-actions{ display:flex; gap:10px; flex-wrap:wrap; }
.cookie-actions button{
  font-family:var(--font-mono); font-size:12px;
  padding:9px 14px; border:1px solid #fff; background:none; color:#fff; cursor:pointer;
}
.cookie-actions button.primary{ background:var(--amber); border-color:var(--amber); color:var(--night); font-weight:700; }

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .hero-grid{ grid-template-columns:1fr; }
  .pillars{ grid-template-columns:1fr; }
  .legend-grid{ grid-template-columns:1fr; }
  .contact-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .datasheet-row{ grid-template-columns:1fr; }
  .datasheet-row dt{ border-right:none; border-bottom:1px solid var(--line); }
}
@media (max-width: 720px){
  .nav-links, .nav-cta{ display:none; }
  .nav-toggle{ display:block; }
  .site-header.open .nav-links{
    display:flex; flex-direction:column; gap:0;
    position:absolute; top:100%; left:0; right:0;
    background:var(--surface); border-bottom:1px solid var(--line-strong);
    padding:8px 28px 18px;
  }
  .site-header.open .nav-links a{ padding:12px 0; border-bottom:1px solid var(--line); width:100%; }
  .site-header.open .nav-cta{ display:inline-flex; margin:14px 28px 20px; width:fit-content; }
  .field-row{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
}