/* ==========================================================================
   BMW MOMENTUM SATÉLITE — Sistema de diseño "Dossier de Ingeniería"
   Paleta: papel plano + tinta night-navy + franja tricolor M Motorsport
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Big+Shoulders+Display:wght@600;700;800;900&family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  --paper:      #F2F0E8;
  --paper-dim:  #E8E5DA;
  --ink:        #12213A;
  --ink-soft:   #3C4A5E;
  --line:       #C9C4B4;
  --m-blue:     #1E5FAE;
  --m-violet:   #6E2A6E;
  --m-red:      #C4122E;
  --white:      #FFFFFF;
  --radius: 2px;
  --max: 1180px;
  --gap: clamp(1.25rem, 3vw, 2.5rem);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'IBM Plex Sans', system-ui, sans-serif;
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4{ margin:0; font-family:'Big Shoulders Display', sans-serif; font-weight:800; letter-spacing:0.01em; text-transform:uppercase; color:var(--ink); }
.mono{ font-family:'IBM Plex Mono', monospace; }
.wrap{ max-width:var(--max); margin:0 auto; padding:0 var(--gap); }
.visually-hidden{ position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; }

/* blueprint grid texture */
.blueprint{
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 42px 42px;
  background-position: -1px -1px;
  opacity:1;
}

/* tri-stripe signature (BMW M heritage: azul / violeta / rojo) */
.tri-stripe{ display:flex; height:6px; width:100%; }
.tri-stripe span{ flex:1; }
.tri-stripe span:nth-child(1){ background:var(--m-blue); }
.tri-stripe span:nth-child(2){ background:var(--m-violet); }
.tri-stripe span:nth-child(3){ background:var(--m-red); }

.tri-stripe.vertical{ flex-direction:column; width:6px; height:100%; }

/* crop / registration marks (evoca planos técnicos impresos) */
.crop{ position:relative; }
.crop::before,.crop::after{
  content:""; position:absolute; width:14px; height:14px; pointer-events:none;
}
.crop::before{ top:-1px; left:-1px; border-top:2px solid var(--ink); border-left:2px solid var(--ink); }
.crop::after{ bottom:-1px; right:-1px; border-bottom:2px solid var(--ink); border-right:2px solid var(--ink); }

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:var(--paper); border-bottom:1px solid var(--ink);
}
.header-row{
  display:flex; align-items:center; justify-content:space-between;
  padding:1.1rem var(--gap); max-width:var(--max); margin:0 auto; gap:1rem;
}
.wordmark{ font-size:1.15rem; line-height:1; letter-spacing:0.02em; }
.wordmark small{ display:block; font-family:'IBM Plex Mono',monospace; font-size:0.55rem; letter-spacing:0.18em; color:var(--ink-soft); text-transform:uppercase; margin-top:2px; }
.main-nav{ display:flex; align-items:center; gap:1.75rem; }
.main-nav a{ font-family:'IBM Plex Mono',monospace; font-size:0.72rem; letter-spacing:0.08em; text-transform:uppercase; color:var(--ink); border-bottom:2px solid transparent; padding-bottom:3px; }
.main-nav a:hover, .main-nav a.active{ border-color:var(--m-blue); }
.btn{
  display:inline-flex; align-items:center; gap:.5rem;
  font-family:'IBM Plex Mono',monospace; font-size:0.72rem; letter-spacing:0.08em; text-transform:uppercase;
  padding:0.7rem 1.15rem; border:1.5px solid var(--ink); border-radius:var(--radius);
  background:var(--ink); color:var(--paper); white-space:nowrap;
}
.btn:hover{ background:var(--m-blue); border-color:var(--m-blue); }
.btn.ghost{ background:transparent; color:var(--ink); }
.btn.ghost:hover{ background:var(--ink); color:var(--paper); }

/* CTA dentro del nav: evita que .main-nav a pise los estilos del botón */
.main-nav a.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:0.7rem 1.15rem;
  border:1.5px solid var(--ink);
  border-radius:var(--radius);
  background:var(--ink);
  color:var(--paper);
  white-space:nowrap;
}
.main-nav a.btn:hover,
.main-nav a.btn:focus-visible{
  background:var(--m-blue);
  border-color:var(--m-blue);
  color:var(--white);
}
.nav-toggle{ display:none; background:none; border:1.5px solid var(--ink); border-radius:var(--radius); width:40px; height:36px; align-items:center; justify-content:center; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{ content:""; display:block; width:18px; height:2px; background:var(--ink); position:relative; }
.nav-toggle span::before{ position:absolute; top:-6px; }
.nav-toggle span::after{ position:absolute; top:6px; }

/* ---------- hero ---------- */
.hero{ position:relative; padding:5.5rem 0 4rem; overflow:hidden; }
.hero .wrap{ position:relative; z-index:2; }
.eyebrow{ font-family:'IBM Plex Mono',monospace; font-size:0.75rem; letter-spacing:0.2em; text-transform:uppercase; color:var(--ink-soft); display:flex; align-items:center; gap:0.6rem; margin-bottom:1rem; }
.eyebrow::before{ content:""; width:22px; height:2px; background:var(--m-red); display:inline-block; }
.hero h1{ font-size:clamp(2.6rem, 6.2vw, 5.4rem); line-height:0.92; max-width:15ch; }
.hero .accent{ color:var(--m-blue); }
.hero p.lede{ font-size:1.15rem; max-width:46ch; color:var(--ink-soft); margin-top:1.4rem; }
.hero .cta-row{ display:flex; flex-wrap:wrap; gap:0.9rem; margin-top:2.2rem; }
.hero-diagonal{
  position:absolute; inset:0; z-index:1; pointer-events:none;
  background: linear-gradient(105deg, transparent 62%, rgba(30,95,174,0.08) 62%, rgba(30,95,174,0.08) 63.4%, transparent 63.4%,
              transparent 65%, rgba(110,42,110,0.08) 65%, rgba(110,42,110,0.08) 66.4%, transparent 66.4%,
              transparent 68%, rgba(196,18,46,0.08) 68%, rgba(196,18,46,0.08) 69.4%, transparent 69.4%);
}

/* ---------- section basics ---------- */
section{ padding:4rem 0; }
.section-head{ display:flex; align-items:flex-end; justify-content:space-between; gap:2rem; margin-bottom:2.4rem; border-bottom:1px solid var(--ink); padding-bottom:1.1rem; flex-wrap:wrap; }
.section-head h2{ font-size:clamp(1.7rem,3.2vw,2.6rem); }
.section-head .tag{ font-family:'IBM Plex Mono',monospace; font-size:0.72rem; letter-spacing:0.1em; text-transform:uppercase; color:var(--ink-soft); }

/* ---------- model grid (home) ---------- */
.model-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1.1rem; }
.model-card{
  background:var(--white); border:1px solid var(--ink); position:relative; display:flex; flex-direction:column;
  min-height:230px; transition:transform .15s ease, box-shadow .15s ease;
}
.model-card:hover{ transform:translateY(-3px); box-shadow:6px 6px 0 var(--ink); }
.model-card .tri-stripe{ height:5px; }
.model-card-body{ padding:1.3rem 1.3rem 1.5rem; display:flex; flex-direction:column; flex:1; }
.model-card .cat{ font-family:'IBM Plex Mono',monospace; font-size:0.65rem; letter-spacing:0.12em; text-transform:uppercase; color:var(--ink-soft); margin-bottom:0.5rem; }
.model-card h3{ font-size:1.65rem; line-height:1; margin-bottom:0.6rem; }
.model-card p{ font-size:0.9rem; color:var(--ink-soft); flex:1; margin:0 0 1rem; }
.model-card .go{ font-family:'IBM Plex Mono',monospace; font-size:0.72rem; letter-spacing:0.08em; text-transform:uppercase; display:inline-flex; align-items:center; gap:.4rem; }
.model-card .go::after{ content:"→"; transition:transform .15s ease; }
.model-card:hover .go::after{ transform:translateX(4px); }
.silhouette{ height:90px; margin:0 1.3rem; opacity:0.9; }
.silhouette svg{ width:100%; height:100%; }

/* ---------- NAP / trust strip ---------- */
.trust-strip{ background:var(--ink); color:var(--paper); padding:0; }
.trust-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr .9fr 1.15fr;
  gap:0;
  padding:0 var(--gap);
}
.trust-item{
  min-width:0;
  padding:2.5rem 1.6rem;
  border-left:1px solid rgba(255,255,255,.14);
}
.trust-item:first-child{ border-left:0; padding-left:0; }
.trust-item:last-child{ padding-right:0; }
.trust-grid h4{
  color:var(--paper);
  font-size:1rem;
  letter-spacing:0.08em;
  margin-bottom:0.65rem;
}
.trust-grid p,
.trust-grid a{
  margin:0;
  font-size:0.88rem;
  line-height:1.6;
  color:#C7CEDA;
  overflow-wrap:anywhere;
}
.trust-grid a{ display:inline-block; }
.trust-grid a:hover{ color:var(--white); }

/* ---------- CTA banner ---------- */
.cta-banner{ background:var(--paper-dim); border-top:1px solid var(--ink); border-bottom:1px solid var(--ink); }
.cta-banner .wrap{ display:flex; align-items:center; justify-content:space-between; gap:2rem; padding:2.6rem var(--gap); flex-wrap:wrap; }
.cta-banner h3{ font-size:clamp(1.5rem,3vw,2.1rem); max-width:26ch; }
.cta-banner .note{ font-family:'IBM Plex Mono',monospace; font-size:0.72rem; color:var(--ink-soft); margin-top:0.5rem; letter-spacing:0.03em; }

/* ---------- footer ---------- */
.site-footer{
  padding:3.25rem 0 1.8rem;
  border-top:1px solid var(--ink);
  background:var(--paper);
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(260px,2fr) 1fr .8fr 1fr;
  gap:clamp(1.5rem,3vw,3rem);
  margin-bottom:2.5rem;
  align-items:start;
}
.footer-brand{ min-width:0; padding-right:1rem; }
.footer-brand .footer-kicker{
  font-family:'IBM Plex Mono',monospace;
  font-size:.64rem;
  line-height:1.4;
  letter-spacing:.15em;
  text-transform:uppercase;
  color:var(--m-blue);
  margin-bottom:.55rem;
}
.footer-brand h4{
  font-size:clamp(1.45rem,2.2vw,1.9rem);
  line-height:1;
  margin-bottom:.85rem;
}
.footer-brand p{
  max-width:38ch;
  margin:0;
  font-size:.9rem;
  line-height:1.65;
  color:var(--ink-soft);
  overflow-wrap:anywhere;
}
.footer-grid h5{
  font-family:'IBM Plex Mono',monospace;
  font-size:0.7rem;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--ink-soft);
  margin:0 0 0.9rem;
}
.footer-grid ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:0.55rem;
}
.footer-grid li{ min-width:0; }
.footer-grid a{
  display:inline-flex;
  align-items:center;
  gap:.25rem;
  max-width:100%;
  font-size:0.88rem;
  line-height:1.45;
  overflow-wrap:anywhere;
  transition:color .15s ease, transform .15s ease;
}
.footer-grid a:hover{ color:var(--m-blue); }
.footer-whatsapp{ font-family:'IBM Plex Mono',monospace; font-size:.78rem !important; text-transform:uppercase; letter-spacing:.04em; }
.footer-whatsapp span{ transition:transform .15s ease; }
.footer-whatsapp:hover span{ transform:translate(2px,-2px); }
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  flex-wrap:wrap;
  gap:0.8rem 1.5rem;
  border-top:1px solid var(--line);
  padding-top:1.35rem;
  font-family:'IBM Plex Mono',monospace;
  font-size:0.68rem;
  line-height:1.55;
  color:var(--ink-soft);
  letter-spacing:0.04em;
}
.footer-domain{ white-space:nowrap; }

/* ---------- breadcrumb ---------- */
.breadcrumb{ font-family:'IBM Plex Mono',monospace; font-size:0.72rem; letter-spacing:0.05em; color:var(--ink-soft); padding:1.1rem 0 0; text-transform:uppercase; }
.breadcrumb a:hover{ color:var(--m-blue); }

/* ---------- model page ---------- */
.model-hero{ padding-top:2.2rem; }
.spec-plate{
  background:var(--white); border:1.5px solid var(--ink); padding:1.6rem 1.7rem; margin-top:2rem;
}
.spec-plate .plate-label{ font-family:'IBM Plex Mono',monospace; font-size:0.65rem; letter-spacing:0.16em; text-transform:uppercase; color:var(--ink-soft); display:flex; justify-content:space-between; border-bottom:1px dashed var(--line); padding-bottom:0.8rem; margin-bottom:0.9rem; }
.spec-list{ list-style:none; margin:0; padding:0; display:grid; grid-template-columns:1fr 1fr; gap:0.65rem 1.5rem; }
.spec-list li{ font-size:0.92rem; display:flex; gap:0.6rem; align-items:baseline; }
.spec-list li::before{ content:"—"; color:var(--m-red); font-weight:700; flex-shrink:0; }

.abc-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1.1rem; }
.abc-card{ border:1px solid var(--ink); padding:1.3rem; background:var(--white); }
.abc-card .letter{ font-family:'Big Shoulders Display',sans-serif; font-weight:900; font-size:2.4rem; color:var(--m-blue); line-height:1; }
.abc-card p{ font-size:0.9rem; color:var(--ink-soft); margin-top:0.6rem; }

.shot-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:0.9rem; }
.shot-slot{
  aspect-ratio:4/3; border:1.5px dashed var(--ink-soft); display:flex; flex-direction:column; align-items:center; justify-content:center;
  background:repeating-linear-gradient(135deg, var(--paper-dim), var(--paper-dim) 10px, var(--paper) 10px, var(--paper) 20px);
  gap:0.4rem; text-align:center; padding:1rem;
}
.shot-slot .n{ font-family:'IBM Plex Mono',monospace; font-size:0.65rem; letter-spacing:0.1em; color:var(--ink-soft); text-transform:uppercase; }
.shot-slot .lbl{ font-family:'IBM Plex Mono',monospace; font-size:0.78rem; color:var(--ink); font-weight:600; }

.pager{ display:flex; justify-content:space-between; border-top:1px solid var(--ink); border-bottom:1px solid var(--ink); padding:1.4rem 0; margin-top:3rem; }
.pager a{ font-family:'IBM Plex Mono',monospace; font-size:0.78rem; text-transform:uppercase; letter-spacing:0.06em; }
.pager .dir{ display:block; font-size:0.62rem; color:var(--ink-soft); margin-bottom:0.3rem; }
.pager .next{ text-align:right; }

/* ---------- contact page ---------- */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:2.4rem; align-items:start; }
.hours-table{ width:100%; border-collapse:collapse; margin-top:0.8rem; }
.hours-table td{ padding:0.5rem 0; border-bottom:1px solid var(--line); font-size:0.92rem; }
.hours-table td:last-child{ text-align:right; font-family:'IBM Plex Mono',monospace; font-size:0.85rem; }
.map-frame{ border:1.5px solid var(--ink); aspect-ratio:4/3; overflow:hidden; }
.map-frame iframe{ width:100%; height:100%; border:0; filter:grayscale(0.35) contrast(1.05); }
.form-card{ border:1.5px solid var(--ink); background:var(--white); padding:1.8rem; }
.form-row{ display:flex; flex-direction:column; gap:0.4rem; margin-bottom:1.1rem; }
.form-row label{ font-family:'IBM Plex Mono',monospace; font-size:0.68rem; letter-spacing:0.1em; text-transform:uppercase; color:var(--ink-soft); }
.form-row input, .form-row select, .form-row textarea{
  font-family:'IBM Plex Sans',sans-serif; font-size:0.95rem; padding:0.7rem 0.8rem; border:1.5px solid var(--ink); border-radius:var(--radius); background:var(--paper);
}
.form-row textarea{ resize:vertical; min-height:90px; }
.form-note{ font-family:'IBM Plex Mono',monospace; font-size:0.72rem; color:var(--m-red); margin-top:-0.4rem; margin-bottom:1rem; }

/* ---------- responsive ---------- */
@media (max-width: 900px){
  .model-grid{ grid-template-columns:repeat(2,1fr); }
  .trust-grid{ grid-template-columns:1fr 1fr; }
  .trust-item{ border-left:0; border-bottom:1px solid rgba(255,255,255,.14); padding:1.8rem 1.25rem; }
  .trust-item:nth-child(even){ border-left:1px solid rgba(255,255,255,.14); }
  .trust-item:nth-last-child(-n+2){ border-bottom:0; }
  .trust-item:first-child{ padding-left:1.25rem; }
  .trust-item:last-child{ padding-right:1.25rem; }

  .footer-grid{ grid-template-columns:1fr 1fr 1fr; }
  .footer-brand{ grid-column:1 / -1; padding:0 0 1.5rem; border-bottom:1px solid var(--line); }
  .footer-brand p{ max-width:58ch; }

  .abc-grid{ grid-template-columns:1fr 1fr; }
  .shot-grid{ grid-template-columns:1fr 1fr; }
  .contact-grid{ grid-template-columns:1fr; }
}

@media (max-width: 640px){
  :root{ --gap:1rem; }
  body{ font-size:15px; }
  section{ padding:3rem 0; }

  .header-row{ padding:.85rem var(--gap); gap:.7rem; }
  .wordmark{ font-size:1rem; max-width:calc(100% - 52px); }
  .wordmark small{ font-size:.48rem; letter-spacing:.14em; margin-top:3px; }
  .main-nav{
    position:fixed;
    inset:61px 0 0 0;
    background:var(--paper);
    flex-direction:column;
    align-items:flex-start;
    padding:2rem var(--gap) 3rem;
    gap:1.6rem;
    transform:translateX(100%);
    transition:transform .25s ease;
    overflow-y:auto;
  }
  .main-nav.open{ transform:translateX(0); }
  .main-nav a{ font-size:.82rem; }
  .nav-toggle{ display:flex; flex:0 0 40px; }
  .header-row .btn.ghost{ display:none; }

  .hero{ padding:4rem 0 3rem; }
  .hero h1{ font-size:clamp(2.6rem,13vw,4rem); }
  .hero p.lede{ font-size:1rem; }
  .hero .cta-row{ margin-top:1.75rem; }
  .hero .cta-row .btn{ flex:1 1 100%; justify-content:center; }

  .section-head{ align-items:flex-start; gap:.65rem; margin-bottom:1.7rem; }
  .section-head .tag{ line-height:1.45; }
  .model-grid{ grid-template-columns:1fr; }

  .cta-banner .wrap{ flex-direction:column; align-items:stretch; gap:1.4rem; padding:2.3rem var(--gap); }
  .cta-banner h3{ max-width:none; }
  .cta-banner .btn{ width:100%; justify-content:center; text-align:center; }

  /* Trust strip móvil: una sola columna, sin cortes ni columnas apretadas */
  .trust-grid{
    grid-template-columns:1fr;
    padding:0 var(--gap);
  }
  .trust-item,
  .trust-item:first-child,
  .trust-item:last-child{
    grid-column:1;
    padding:1.25rem 0;
    border-left:0 !important;
    border-bottom:1px solid rgba(255,255,255,.14);
  }
  .trust-address{ padding-top:1.55rem; }
  .trust-dealer{ border-bottom:0; padding-bottom:1.55rem; }
  .trust-grid h4{ margin-bottom:.4rem; }
  .trust-grid p,
  .trust-grid a{
    font-size:.84rem;
    line-height:1.6;
    overflow-wrap:normal;
    word-break:normal;
  }

  .site-footer{ padding:2.5rem 0 1.5rem; }
  .footer-grid{ grid-template-columns:1fr 1fr; gap:1.6rem 1rem; margin-bottom:2rem; }
  .footer-brand{ grid-column:1 / -1; padding:0 0 1.4rem; }
  .footer-brand h4{ font-size:1.65rem; }
  .footer-brand p{ max-width:none; }
  .footer-models{ grid-column:1 / -1; padding-bottom:1.25rem; border-bottom:1px solid var(--line); }
  .footer-models ul{ display:grid; grid-template-columns:1fr 1fr; gap:.55rem 1rem; }
  .footer-grid h5{ margin-bottom:.7rem; }
  .footer-grid a{ font-size:.86rem; }
  .footer-bottom{ flex-direction:column; gap:.45rem; font-size:.64rem; }
  .footer-domain{ white-space:normal; overflow-wrap:anywhere; }

  .abc-grid{ grid-template-columns:1fr; }
  .shot-grid{ grid-template-columns:1fr 1fr; }
  .spec-list{ grid-template-columns:1fr; }
  .pager{ flex-direction:column; gap:1rem; }
  .pager .next{ text-align:left; }
}

@media (max-width: 420px){
  .trust-item,
  .trust-item:first-child,
  .trust-item:last-child{ padding:1.1rem 0; }
  .trust-address{ padding-top:1.35rem; }
  .trust-dealer{ padding-bottom:1.35rem; }

  .footer-grid{ grid-template-columns:1fr; }
  .footer-models,
  .footer-site,
  .footer-contact{ grid-column:1; }
  .footer-models ul{ grid-template-columns:1fr 1fr; }
  .footer-site{ padding-bottom:1.2rem; border-bottom:1px solid var(--line); }
  .footer-contact{ padding-top:.1rem; }

  .shot-grid{ grid-template-columns:1fr; }
}