/* ==========================================================================
   OddSide Soluciones Informáticas
   Lenguaje visual: plano técnico. Retícula de línea fina, rótulos de plano,
   bandas a sangre. Identidad de una sola pieza: papel + bandas oscuras.
   ========================================================================== */

:root{
  /* Tierra */
  --papel:      #F5F3F1;
  --superficie: #FFFFFF;
  --tinta:      #1A1512;
  --tinta-2:    #5E5751;
  --tinta-3:    #8B837D;
  --linea:      #DCD7D3;
  --linea-2:    #E9E5E2;

  /* Bandas oscuras */
  --vacio:      #141010;
  --vacio-2:    #211A19;
  --linea-osc:  #352C2A;
  --tinta-osc:  #F2EEEB;
  --tinta-osc-2:#A79D98;

  /* Marca */
  --granate:      #800000;
  --granate-alto: #B01F1F;

  /* Métrica */
  --ancho: 1320px;
  --margen: clamp(20px, 5vw, 64px);
  --hairline: 1px;

  --t-rapida: 180ms cubic-bezier(.2,.6,.3,1);
  --t-media:  420ms cubic-bezier(.2,.6,.3,1);
  --t-larga:  900ms cubic-bezier(.16,.8,.24,1);
}

*,*::before,*::after{box-sizing:border-box;}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:96px;
}

body{
  margin:0;
  background:var(--papel);
  color:var(--tinta);
  font-family:"Archivo","Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.62;
  font-variation-settings:"wdth" 100;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{display:block;max-width:100%;height:auto;}

h1,h2,h3{
  margin:0;
  font-weight:700;
  line-height:1.02;
  letter-spacing:-.022em;
  text-wrap:balance;
  font-variation-settings:"wdth" 112;
}

p{margin:0;}
ul{margin:0;padding:0;list-style:none;}

a{color:inherit;}

svg{stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round;}

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

:focus-visible{
  outline:2px solid var(--granate);
  outline-offset:3px;
}

.mono{
  font-family:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:11px;
  font-weight:500;
  letter-spacing:.14em;
  text-transform:uppercase;
  font-variation-settings:normal;
}

.saltar{
  position:absolute;
  left:-9999px;
  top:0;
  z-index:200;
  background:var(--tinta);
  color:var(--papel);
  padding:12px 20px;
  text-decoration:none;
}
.saltar:focus{left:0;}

/* ===== Cabecera ========================================================== */

.masthead{
  position:fixed;
  inset:0 0 auto 0;
  z-index:80;
  border-bottom:var(--hairline) solid transparent;
  transition:background var(--t-media),border-color var(--t-media),backdrop-filter var(--t-media);
}
.masthead-in{
  max-width:var(--ancho);
  margin:0 auto;
  padding:0 var(--margen);
  height:76px;
  display:flex;
  align-items:center;
  gap:32px;
}

.marca{
  position:relative;
  display:block;
  flex:0 0 auto;
  width:168px;
  height:32px;
  text-decoration:none;
}
.marca img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:contain;
  object-position:left center;
  transition:opacity var(--t-media);
}
.marca-pos{opacity:0;}
.marca-neg{opacity:1;}

.masthead.solido{
  background:rgba(245,243,241,.88);
  backdrop-filter:saturate(1.4) blur(14px);
  border-bottom-color:var(--linea);
}
.masthead.solido .marca-pos{opacity:1;}
.masthead.solido .marca-neg{opacity:0;}

.nav{
  margin-left:auto;
  display:flex;
  gap:34px;
}
.nav a{
  position:relative;
  font-size:14.5px;
  font-weight:500;
  text-decoration:none;
  color:var(--tinta-osc);
  padding:6px 0;
  transition:color var(--t-rapida);
}
.nav a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:var(--granate-alto);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--t-media);
}
.nav a:hover::after,
.nav a.activo::after{transform:scaleX(1);}
.masthead.solido .nav a{color:var(--tinta-2);}
.masthead.solido .nav a:hover,
.masthead.solido .nav a.activo{color:var(--tinta);}

.tel-directo{
  text-decoration:none;
  color:var(--tinta-osc);
  padding:9px 16px;
  border:var(--hairline) solid rgba(242,238,235,.28);
  transition:color var(--t-rapida),border-color var(--t-rapida),background var(--t-rapida);
}
.tel-directo:hover{
  background:var(--granate-alto);
  border-color:var(--granate-alto);
  color:#fff;
}
.masthead.solido .tel-directo{color:var(--tinta);border-color:var(--linea);}
.masthead.solido .tel-directo:hover{background:var(--granate);border-color:var(--granate);color:#fff;}

.menu-btn{
  display:none;
  margin-left:auto;
  align-items:center;
  gap:10px;
  background:none;
  border:0;
  padding:8px 0;
  color:var(--tinta-osc);
  cursor:pointer;
}
.masthead.solido .menu-btn{color:var(--tinta);}
.menu-btn-icono{display:block;width:22px;}
.menu-btn-icono i{
  display:block;
  height:1.5px;
  background:currentColor;
  transition:transform var(--t-media);
}
.menu-btn-icono i:first-child{margin-bottom:6px;}
.menu-btn[aria-expanded="true"] .menu-btn-icono i:first-child{transform:translateY(3.75px) rotate(45deg);}
.menu-btn[aria-expanded="true"] .menu-btn-icono i:last-child{transform:translateY(-3.75px) rotate(-45deg);}

/* Menú móvil */
.nav-movil{
  position:fixed;
  inset:76px 0 0 0;
  z-index:70;
  background:var(--vacio);
  color:var(--tinta-osc);
  padding:clamp(24px,7vw,60px) var(--margen);
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.nav-movil[hidden]{display:none;}
.nav-movil ol{
  margin:0;padding:0;
  list-style:none;
  display:flex;
  flex-direction:column;
}
.nav-movil li{border-top:var(--hairline) solid var(--linea-osc);}
.nav-movil li:last-child{border-bottom:var(--hairline) solid var(--linea-osc);}
.nav-movil a{
  display:flex;
  align-items:baseline;
  gap:16px;
  padding:22px 2px;
  text-decoration:none;
  font-size:clamp(26px,7vw,34px);
  font-weight:700;
  letter-spacing:-.02em;
  font-variation-settings:"wdth" 112;
}
.nav-movil li .mono{color:var(--granate-alto);}
.nav-movil-pie{color:var(--tinta-osc-2);margin-top:32px;}

/* ===== Portada =========================================================== */

.portada{
  position:relative;
  background:var(--vacio);
  color:var(--tinta-osc);
  padding-top:clamp(140px,18vh,200px);
  overflow:hidden;
  isolation:isolate;
}

.portada-media{
  position:absolute;
  inset:0 0 0 32%;
  z-index:-1;
}
.portada-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:60% 50%;
  filter:grayscale(1) contrast(1.2) brightness(.34);
}
.portada-tinte{
  position:absolute;
  inset:0;
  background:var(--granate);
  mix-blend-mode:color;
  opacity:.3;
}
.portada-fundido{
  position:absolute;
  inset:0;
  background:
    linear-gradient(90deg, var(--vacio) 6%, rgba(20,16,16,.92) 38%, rgba(20,16,16,.62) 100%),
    linear-gradient(0deg, var(--vacio) 2%, rgba(20,16,16,0) 38%);
}

.portada-in{
  position:relative;
  max-width:var(--ancho);
  margin:0 auto;
  padding:0 var(--margen) clamp(56px,9vh,104px);
}

.rotulo{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  color:var(--tinta-osc-2);
  margin-bottom:clamp(28px,5vh,54px);
}
.rotulo .sep{color:var(--granate-alto);}

.portada-titular{
  font-size:clamp(46px,7.6vw,108px);
  line-height:.95;
  letter-spacing:-.036em;
  font-weight:800;
  font-variation-settings:"wdth" 118;
  max-width:15ch;
}
.portada-titular .linea{display:block;}
.portada-titular .linea:last-child{color:var(--granate-alto);}

.portada-entrada{
  margin-top:clamp(24px,4vh,38px);
  max-width:46ch;
  font-size:clamp(16px,1.35vw,19px);
  color:var(--tinta-osc-2);
}

.portada-acciones{
  margin-top:clamp(30px,5vh,46px);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}

.btn{
  display:inline-block;
  padding:15px 26px;
  font-size:14.5px;
  font-weight:600;
  text-decoration:none;
  border:var(--hairline) solid transparent;
  transition:background var(--t-rapida),color var(--t-rapida),border-color var(--t-rapida),transform var(--t-rapida);
}
.btn:active{transform:translateY(1px);}
.btn-solido{background:var(--granate-alto);color:#fff;border-color:var(--granate-alto);}
.btn-solido:hover{background:#C93027;border-color:#C93027;}
.btn-linea{color:var(--tinta-osc);border-color:rgba(242,238,235,.3);}
.btn-linea:hover{border-color:var(--tinta-osc);background:rgba(242,238,235,.07);}

.modos{
  position:relative;
  max-width:var(--ancho);
  margin:0 auto;
  padding:0 var(--margen);
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border-top:var(--hairline) solid var(--linea-osc);
}
.modos article{
  padding:30px 34px 38px 0;
  border-right:var(--hairline) solid var(--linea-osc);
}
.modos article:first-child{padding-left:0;}
.modos article:not(:first-child){padding-left:34px;}
.modos article:last-child{border-right:0;padding-right:0;}
.modos h2{
  font-size:17px;
  font-weight:600;
  letter-spacing:-.01em;
  margin-bottom:9px;
  font-variation-settings:"wdth" 104;
}
.modos p{
  font-size:14.5px;
  line-height:1.55;
  color:var(--tinta-osc-2);
  max-width:32ch;
}

/* ===== Bandas ============================================================ */

.banda{
  padding:clamp(72px,11vh,130px) 0;
  border-top:var(--hairline) solid var(--linea);
}
.banda:first-of-type{border-top:0;}
.banda-alt{background:var(--superficie);}

.banda-in{
  max-width:var(--ancho);
  margin:0 auto;
  padding:0 var(--margen);
}

.bloque-rotulo{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:24px;
  padding-bottom:18px;
  border-bottom:2px solid var(--tinta);
  margin-bottom:clamp(32px,5vh,54px);
}
.bloque-rotulo h2{
  font-size:clamp(28px,3.6vw,46px);
  letter-spacing:-.03em;
  font-variation-settings:"wdth" 116;
}
.bloque-rotulo .mono{color:var(--tinta-2);white-space:nowrap;}

.bloque-rotulo-oscuro{border-bottom-color:var(--tinta-osc);}
.bloque-rotulo-oscuro .mono{color:var(--tinta-osc-2);}

.banda-entrada{
  max-width:62ch;
  color:var(--tinta-2);
  margin-top:-14px;
  margin-bottom:clamp(30px,4vh,44px);
}

/* ===== Servicios ========================================================= */

.rejilla-servicios{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border-top:var(--hairline) solid var(--linea);
  border-left:var(--hairline) solid var(--linea);
}
.celda-servicio{
  position:relative;
  padding:clamp(26px,3vw,40px);
  border-right:var(--hairline) solid var(--linea);
  border-bottom:var(--hairline) solid var(--linea);
  background:transparent;
  transition:background var(--t-media);
}
.celda-servicio::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:2px;
  background:var(--granate);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--t-media);
}
.celda-servicio:hover{background:var(--superficie);}
.banda-alt .celda-servicio:hover{background:var(--papel);}
.celda-servicio:hover::before{transform:scaleX(1);}

.celda-servicio .icono{
  width:44px;
  height:44px;
  color:var(--granate);
  stroke-width:1.05;
  margin-bottom:26px;
}
.celda-servicio h3{
  font-size:19px;
  font-weight:600;
  letter-spacing:-.014em;
  margin-bottom:11px;
  font-variation-settings:"wdth" 106;
}
.celda-servicio p{
  font-size:15.2px;
  line-height:1.6;
  color:var(--tinta-2);
  max-width:38ch;
}

/* ===== Empresa =========================================================== */

.empresa-lead{
  max-width:68ch;
  font-size:clamp(18px,1.7vw,22px);
  line-height:1.5;
  color:var(--tinta);
  margin-bottom:clamp(38px,5vh,58px);
  text-wrap:pretty;
}

.empresa-columnas{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:var(--hairline) solid var(--linea);
}
.empresa-columnas article{
  padding:24px 26px 4px 0;
  border-right:var(--hairline) solid var(--linea);
}
.empresa-columnas article:not(:first-child){padding-left:30px;}
.empresa-columnas article:last-child{border-right:0;padding-right:0;}
.empresa-columnas h3{
  color:var(--tinta-3);
  margin-bottom:12px;
}
.empresa-columnas p{
  font-size:15.4px;
  line-height:1.62;
  color:var(--tinta-2);
}

/* ===== Clientes ========================================================== */

.rejilla-clientes{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  border-top:var(--hairline) solid var(--linea);
  border-left:var(--hairline) solid var(--linea);
}
.celda-cliente{
  position:relative;
  aspect-ratio:1;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:clamp(16px,2.2vw,32px);
  background:var(--superficie);
  border:0;
  border-right:var(--hairline) solid var(--linea);
  border-bottom:var(--hairline) solid var(--linea);
  font:inherit;
  transition:background var(--t-media);
}
.banda .celda-cliente{background:var(--superficie);}
.celda-cliente img{
  max-width:100%;
  max-height:100%;
  object-fit:contain;
  filter:grayscale(1) contrast(1.05);
  opacity:.74;
  transition:filter var(--t-media),opacity var(--t-media),transform var(--t-media);
}
.celda-cliente:hover img{
  filter:grayscale(0);
  opacity:1;
  transform:scale(1.035);
}

/* ===== Socios ============================================================ */

.rejilla-socios{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  border-top:var(--hairline) solid var(--linea);
  border-left:var(--hairline) solid var(--linea);
}
.celda-socio{
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:132px;
  padding:22px 22px;
  border-right:var(--hairline) solid var(--linea);
  border-bottom:var(--hairline) solid var(--linea);
}
/* Los seis vienen normalizados por área óptica sobre un lienzo común,
   así que basta con darles el mismo ancho: quedan centrados y con el
   mismo peso visual aunque sus proporciones sean muy distintas. */
.celda-socio img{
  width:100%;
  height:auto;
  filter:grayscale(1);
  opacity:.55;
  transition:filter var(--t-media),opacity var(--t-media);
}
.celda-socio:hover img{filter:grayscale(0);opacity:1;}

/* ===== Contacto ========================================================== */

.contacto{
  background:var(--vacio);
  color:var(--tinta-osc);
  padding:clamp(72px,11vh,130px) 0;
}
.contacto-cuerpo{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);
  gap:clamp(36px,6vw,80px);
  align-items:start;
}
.contacto-invitacion{
  font-size:26px;
  font-weight:700;
  line-height:1.2;
  letter-spacing:-.022em;
  margin-bottom:22px;
  font-variation-settings:"wdth" 112;
}
.contacto-directo{display:flex;flex-direction:column;align-items:flex-start;}
.contacto-grande{
  font-size:18px;
  font-weight:600;
  letter-spacing:-.012em;
  line-height:1.62;
  text-decoration:none;
  color:var(--tinta-osc);
  font-variation-settings:"wdth" 112;
  background-image:linear-gradient(var(--granate-alto),var(--granate-alto));
  background-size:0% 2px;
  background-position:0 100%;
  background-repeat:no-repeat;
  transition:background-size var(--t-media),color var(--t-rapida);
  word-break:break-word;
}
.contacto-grande:hover{background-size:100% 2px;color:#fff;}

.contacto-ficha{
  font-style:normal;
  border-top:var(--hairline) solid var(--linea-osc);
  padding-top:16px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.contacto-ficha .mono{color:var(--tinta-osc-2);}
.contacto-ficha p{color:var(--tinta-osc);line-height:1.75;}

/* ===== Pie =============================================================== */

.pie{
  background:var(--vacio);
  color:var(--tinta-osc-2);
  border-top:var(--hairline) solid var(--linea-osc);
  padding:26px 0;
}
.pie-in{
  display:flex;
  flex-wrap:wrap;
  gap:12px 28px;
  justify-content:space-between;
}

/* ===== Movimiento ======================================================== */

.anim{
  opacity:0;
  transform:translateY(18px);
  animation:entrar var(--t-larga) forwards;
}
.anim[data-anim="1"]{animation-delay:.05s;}
.anim[data-anim="2"]{animation-delay:.16s;}
.anim[data-anim="3"]{animation-delay:.25s;}
.anim[data-anim="4"]{animation-delay:.4s;}
.anim[data-anim="5"]{animation-delay:.5s;}
.anim[data-anim="6"]{animation-delay:.62s;}

@keyframes entrar{
  to{opacity:1;transform:none;}
}

.reveal{
  opacity:0;
  transform:translateY(20px);
  transition:opacity 620ms cubic-bezier(.16,.8,.24,1),transform 620ms cubic-bezier(.16,.8,.24,1);
}
.reveal.dentro{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .anim,.reveal{opacity:1;transform:none;}
}

/* ===== Adaptación ======================================================== */

@media (max-width:1120px){
  .rejilla-clientes{grid-template-columns:repeat(3,1fr);}
  .rejilla-socios{grid-template-columns:repeat(3,1fr);}

  /* Cuatro columnas se quedan estrechas: pasan a dos */
  .empresa-columnas{grid-template-columns:repeat(2,1fr);}
  .empresa-columnas article{
    padding:24px 30px 24px 0;
    border-bottom:var(--hairline) solid var(--linea);
  }
  .empresa-columnas article:nth-child(odd){padding-left:0;}
  .empresa-columnas article:nth-child(even){
    padding-left:30px;
    padding-right:0;
    border-right:0;
  }
  .empresa-columnas article:nth-last-child(-n+2){border-bottom:0;}
}

@media (max-width:980px){
  .nav,.tel-directo{display:none;}
  .menu-btn{display:flex;}
  body.menu-abierto{overflow:hidden;}

  .rejilla-servicios{grid-template-columns:repeat(2,1fr);}
  .empresa-columnas{grid-template-columns:1fr;}
  .contacto-cuerpo{grid-template-columns:1fr;}

  .empresa-columnas article{
    border-right:0;
    border-bottom:var(--hairline) solid var(--linea);
    padding:22px 0 24px;
  }
  .empresa-columnas article:not(:first-child){padding-left:0;}
  .empresa-columnas article:last-child{border-bottom:0;}

  .modos{grid-template-columns:1fr;}
  .modos article{
    border-right:0;
    border-bottom:var(--hairline) solid var(--linea-osc);
    padding:22px 0 24px;
  }
  .modos article:not(:first-child){padding-left:0;}
  .modos article:last-child{border-bottom:0;}
  .modos p{max-width:52ch;}
}

@media (max-width:680px){
  body{font-size:16px;}
  .masthead-in{height:66px;}
  .nav-movil{inset:66px 0 0 0;}
  .marca{width:140px;height:27px;}
  html{scroll-padding-top:78px;}

  /* El titular se estrecha para caber sin partir palabras */
  .portada-titular{
    font-size:clamp(33px,10.6vw,50px);
    font-variation-settings:"wdth" 100;
    letter-spacing:-.028em;
    max-width:none;
  }
  .rotulo{gap:9px;}
  .rotulo span:nth-child(-n+2){display:none;}
  .portada-entrada{max-width:none;}

  .rejilla-servicios{grid-template-columns:1fr;}
  .celda-servicio .icono{margin-bottom:18px;}

  .bloque-rotulo{
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
  }
  .banda-entrada{margin-top:0;}
  
}

@media (max-width:460px){
  /* Siempre 3 en fila: 15 clientes dan 5 filas exactas y ninguna queda coja */
  .celda-cliente{padding:9px;}
  .portada-media{inset:0;}
  .portada-fundido{
    background:linear-gradient(180deg,rgba(20,16,16,.9) 0%,rgba(20,16,16,.82) 45%,var(--vacio) 92%);
  }
}