/* =========================================================
   IRYS · Ingeniería de Rocas y Suelos
   Hoja de estilos del sitio (misma línea visual del brochure)
   ========================================================= */

@font-face{font-family:'Archivo';font-weight:400;font-display:swap;src:url('../fonts/archivo-latin-400-normal.woff2') format('woff2')}
@font-face{font-family:'Archivo';font-weight:500;font-display:swap;src:url('../fonts/archivo-latin-500-normal.woff2') format('woff2')}
@font-face{font-family:'Archivo';font-weight:600;font-display:swap;src:url('../fonts/archivo-latin-600-normal.woff2') format('woff2')}
@font-face{font-family:'Manrope';font-weight:400;font-display:swap;src:url('../fonts/manrope-latin-400-normal.woff2') format('woff2')}
@font-face{font-family:'Manrope';font-weight:500;font-display:swap;src:url('../fonts/manrope-latin-500-normal.woff2') format('woff2')}
@font-face{font-family:'Manrope';font-weight:600;font-display:swap;src:url('../fonts/manrope-latin-600-normal.woff2') format('woff2')}

:root{
  /* Paleta tomada del logo y del brochure */
  --papel:#F4F1EB;        /* fondo principal */
  --papel-2:#EAE4D9;      /* bloques suaves */
  --tinta:#231F1B;        /* texto principal */
  --texto:#3A342E;        /* texto de párrafo */
  --gris:#5F574E;         /* texto secundario */
  --cafe:#5E4E3E;         /* acentos de texto */
  --salvia:#8A8870;       /* acento decorativo */
  --arena:#D8CCB4;        /* líneas */
  --oscuro:#2A2521;       /* secciones oscuras / pie */
  --blanco:#FFFFFF;

  --display:'Archivo',system-ui,sans-serif;
  --body:'Manrope',system-ui,sans-serif;
  --radio:14px;
  --ancho:1280px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--body);font-size:17px;line-height:1.6;color:var(--texto);background:var(--papel);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--display);color:var(--tinta);font-weight:500;letter-spacing:-.02em;line-height:1.08;text-wrap:balance}
p{text-wrap:pretty}
:focus-visible{outline:2px solid var(--cafe);outline-offset:3px;border-radius:4px}

.container{max-width:var(--ancho);margin:0 auto;padding:0 40px}

/* ---------- Etiquetas y botones ---------- */
.eyebrow,.kicker,.rc-kicker,.pc-kicker{font-family:var(--body);font-size:.74rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--cafe)}
.btn{display:inline-flex;align-items:center;gap:10px;min-height:48px;padding:0 24px;border-radius:999px;font-weight:600;font-size:.95rem;transition:background .2s,color .2s,border-color .2s}
.btn-oscuro{background:var(--tinta);color:var(--papel)}
.btn-oscuro:hover{background:var(--cafe)}
.btn-linea{border:1px solid var(--tinta);color:var(--tinta)}
.btn-linea:hover{background:var(--tinta);color:var(--papel)}
.btn-claro{background:var(--papel);color:var(--tinta)}
.btn-claro:hover{background:var(--arena)}
.flecha{display:inline-block;transition:transform .2s}
a:hover .flecha{transform:translateX(4px)}
.link-flecha{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.95rem;color:var(--tinta);border-bottom:1px solid var(--arena);padding-bottom:3px;transition:border-color .2s}
.link-flecha:hover{border-color:var(--tinta)}

/* ---------- Encabezado ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(244,241,235,.94);backdrop-filter:saturate(1.2) blur(10px);border-bottom:1px solid transparent;transition:border-color .2s}
.site-header.scrolled{border-bottom-color:var(--arena)}
.nav{display:flex;align-items:center;justify-content:space-between;height:84px;gap:32px}
.marca{display:flex;align-items:center;gap:14px}
.marca img{height:40px;width:auto}
.marca span{font-family:var(--display);font-weight:600;font-size:1.35rem;letter-spacing:.02em;color:var(--tinta)}
.marca small{display:block;font-family:var(--body);font-size:.62rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--gris);margin-top:2px}
.menu{display:flex;align-items:center;gap:6px}
.menu > a,.menu-item > a{display:inline-flex;align-items:center;min-height:44px;padding:0 14px;border-radius:999px;font-size:.95rem;font-weight:500;color:var(--tinta);transition:background .2s}
.menu > a:hover,.menu-item > a:hover,.menu a[aria-current="page"]{background:var(--papel-2)}
.menu .btn{margin-left:10px;padding:0 22px}
.menu > a.btn-oscuro{color:var(--papel)}
.menu > a.btn-oscuro:hover{background:var(--cafe)}
.menu-item{position:relative}
.menu-item > a::after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);margin-left:9px}
.submenu{position:absolute;top:100%;left:0;min-width:300px;padding:10px;background:var(--blanco);border:1px solid var(--arena);border-radius:var(--radio);box-shadow:0 18px 40px rgba(35,31,27,.12);opacity:0;visibility:hidden;transform:translateY(6px);transition:all .18s}
.menu-item:hover .submenu,.menu-item:focus-within .submenu{opacity:1;visibility:visible;transform:none}
.submenu a{display:block;padding:11px 14px;border-radius:9px;font-size:.93rem;color:var(--tinta)}
.submenu a:hover{background:var(--papel)}
.menu-movil{display:none}

/* ---------- Portada (home) ---------- */
.hero{padding:88px 0 56px}
.hero-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:72px;align-items:end}
.hero h1{font-size:clamp(2.1rem,3.7vw,3.4rem);font-weight:500;line-height:1.1}
.hero-lede{font-size:1.12rem;color:var(--texto);margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-media{margin-top:64px;border-radius:var(--radio);overflow:hidden;aspect-ratio:21/9;background:var(--papel-2)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.caption a{white-space:nowrap;align-self:flex-start}
.caption{display:flex;justify-content:space-between;gap:16px;margin-top:14px;font-size:.85rem;color:var(--gris)}

.section{padding:112px 0}
.section + .section{padding-top:0}
.section-head{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:end;margin-bottom:56px}
.section-head h2{font-size:clamp(2rem,3.4vw,3rem)}
.section-head p{color:var(--texto);max-width:520px}
.section-head .eyebrow{margin-bottom:18px}
.rule{border:none;border-top:1px solid var(--arena)}

/* Servicios: lista editorial */
.servicios-lista{border-top:1px solid var(--arena)}
.servicio{display:grid;grid-template-columns:72px 1.1fr 1.4fr 220px;gap:32px;align-items:center;padding:28px 0;border-bottom:1px solid var(--arena);transition:background .2s}
.servicio:hover{background:rgba(234,228,217,.55)}
.servicio .num{font-family:var(--display);font-weight:500;color:var(--salvia);font-size:1rem}
.servicio h3{font-size:1.6rem}
.servicio p{font-size:.98rem;color:var(--texto)}
.servicio .thumb{border-radius:10px;overflow:hidden;aspect-ratio:16/10}
.servicio .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.servicio:hover .thumb img{transform:scale(1.04)}

/* Tarjetas de proyecto */
.cards-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}
.card{display:flex;flex-direction:column;gap:18px}
.card .media{border-radius:var(--radio);overflow:hidden;aspect-ratio:4/3;background:var(--papel-2)}
.card .media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.card:hover .media img{transform:scale(1.04)}
.card h3{font-size:1.45rem}
.card p{font-size:.96rem;color:var(--texto)}

/* Bloque dividido (gente) */
.split{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.split .media{border-radius:var(--radio);overflow:hidden;aspect-ratio:5/4}
.split .media img{width:100%;height:100%;object-fit:cover}
.split h2{font-size:clamp(2rem,3.4vw,3rem);margin:18px 0 22px}
.split p{margin-bottom:28px}
.link-lista{display:flex;flex-direction:column;border-top:1px solid var(--arena)}
.link-lista a{display:flex;justify-content:space-between;align-items:center;padding:18px 0;border-bottom:1px solid var(--arena);font-family:var(--display);font-size:1.2rem;color:var(--tinta)}
.link-lista a:hover{color:var(--cafe)}

/* Banda oscura (frase de cierre) */
.banda{background:var(--oscuro);color:var(--papel);border-radius:var(--radio);overflow:hidden;display:grid;grid-template-columns:1.1fr 1fr}
.banda-texto{padding:72px 64px;display:flex;flex-direction:column;justify-content:space-between;gap:40px}
.banda blockquote{font-family:var(--display);font-size:clamp(1.6rem,2.6vw,2.3rem);line-height:1.2;letter-spacing:-.015em;color:var(--papel)}
.banda .eyebrow{color:var(--arena)}
.banda-media img{width:100%;height:100%;object-fit:cover}

/* ---------- Páginas interiores ---------- */
.breadcrumb{max-width:var(--ancho);margin:0 auto;padding:36px 40px 0;font-size:.85rem;color:var(--gris)}
.breadcrumb a{color:var(--gris);border-bottom:1px solid var(--arena)}
.breadcrumb a:hover{color:var(--tinta);border-color:var(--tinta)}
.breadcrumb span{margin:0 10px;color:var(--salvia)}

.page-head{max-width:var(--ancho);margin:0 auto;padding:48px 40px 48px}
.page-head .kicker{margin-bottom:18px}
.page-head h1{font-size:clamp(2.6rem,5.4vw,4.6rem);max-width:900px}
.page-hero{max-width:var(--ancho);margin:0 auto;padding:0 40px}
.page-hero .media{border-radius:var(--radio);overflow:hidden;aspect-ratio:21/8;background:var(--papel-2)}
.page-hero .media img{width:100%;height:100%;object-fit:cover}
.page-hero--bottom .media img{object-position:center bottom}
.page-hero--natural{max-width:760px}
.page-hero--natural .media{aspect-ratio:auto}
.page-hero--natural .media img{height:auto;object-fit:contain;display:block}

.intro-lede{max-width:880px;margin:0 auto;padding:80px 40px 0;font-family:var(--display);font-size:clamp(1.3rem,2vw,1.7rem);line-height:1.4;letter-spacing:-.01em;color:var(--tinta);text-align:left}

.detail-wrap{max-width:var(--ancho);margin:0 auto;padding:80px 40px 112px;display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:96px}
.detail-main > p:first-child{font-family:var(--display);font-size:1.45rem;line-height:1.45;color:var(--tinta);letter-spacing:-.01em;margin-bottom:12px}
.detail-main p{margin-bottom:22px}
.detail-main h2{font-size:1.9rem;margin:56px 0 22px}
.detail-main ul{list-style:none;border-top:1px solid var(--arena);margin-bottom:24px}
.detail-main li{position:relative;padding:16px 0 16px 34px;border-bottom:1px solid var(--arena);font-size:1rem;line-height:1.6}
.detail-main li::before{content:"";position:absolute;left:4px;top:26px;width:12px;height:2px;background:var(--salvia)}
.detail-main figure{margin:48px 0 8px}
.detail-main figure img{width:100%;border-radius:var(--radio);background:var(--blanco);border:1px solid var(--arena)}
.detail-main figcaption{font-size:.85rem;color:var(--gris);margin-top:12px}
.back-link{display:inline-flex;gap:8px;margin-top:32px;font-weight:600;font-size:.95rem;color:var(--tinta);border-bottom:1px solid var(--arena);padding-bottom:3px}
.back-link:hover{border-color:var(--tinta)}

.detail-aside{align-self:start;position:sticky;top:120px;background:var(--papel-2);border-radius:var(--radio);padding:32px}
.detail-aside h3{font-family:var(--body);font-size:.74rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--cafe);margin-bottom:8px}
.detail-aside dl > div{padding:16px 0;border-bottom:1px solid var(--arena)}
.detail-aside dl > div:last-child{border-bottom:none;padding-bottom:0}
.detail-aside dt{font-size:.8rem;font-weight:600;color:var(--gris);margin-bottom:4px}
.detail-aside dd{font-family:var(--display);font-size:1.05rem;color:var(--tinta);line-height:1.4}

/* Proyectos principales */
.proyectos-section{padding:80px 0 112px}
.proyectos-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:56px 32px}
.proyecto-card{display:flex;flex-direction:column}
.proyecto-card .pc-img{border-radius:var(--radio);overflow:hidden;aspect-ratio:4/3;background:var(--papel-2);margin-bottom:22px}
.proyecto-card .pc-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.proyecto-card:hover .pc-img img{transform:scale(1.04)}
.proyecto-card .pc-kicker{margin-bottom:10px}
.proyecto-card h3{font-size:1.5rem;margin-bottom:12px}
.proyecto-card p{font-size:.96rem;margin-bottom:18px;flex:1}
.proyecto-card a:not(.pc-img){align-self:flex-start;font-weight:600;font-size:.95rem;color:var(--tinta);border-bottom:1px solid var(--arena);padding-bottom:3px}
.proyecto-card a:not(.pc-img):hover{border-color:var(--tinta)}

/* Relacionados */
.related-section{border-top:1px solid var(--arena);padding:96px 0 112px}
.related-section .eyebrow{margin-bottom:16px}
.related-section h2{font-size:clamp(1.8rem,3vw,2.6rem);margin-bottom:48px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}
.related-card{display:flex;flex-direction:column}
.related-card .rc-img{border-radius:var(--radio);overflow:hidden;aspect-ratio:16/10;background:var(--papel-2);margin-bottom:20px}
.related-card .rc-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.related-card:hover .rc-img img{transform:scale(1.04)}
.related-card .rc-kicker{margin-bottom:10px}
.related-card h4{font-size:1.35rem;margin-bottom:10px}
.related-card p{font-size:.95rem;margin-bottom:16px}
.related-card a{align-self:flex-start;font-weight:600;font-size:.95rem;color:var(--tinta);border-bottom:1px solid var(--arena);padding-bottom:3px}
.related-card a:hover{border-color:var(--tinta)}

/* Personal directivo */
.directivo-section{padding:88px 0 112px}
.directivo-title{font-size:clamp(1.8rem,3vw,2.6rem);margin-bottom:48px}
.directivo-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px;border-top:1px solid var(--arena);padding-top:48px}
.directivo-row + .directivo-row{margin-top:56px}
.directivo-card{display:flex;flex-direction:column}
.dc-photo{order:-1;width:100%;aspect-ratio:1/1;max-width:240px;border-radius:var(--radio);overflow:hidden;background:var(--papel-2);margin-bottom:22px}
.dc-photo img{width:100%;height:100%;object-fit:cover;object-position:center center;filter:grayscale(1) contrast(1.02)}
.dc-name{font-family:var(--display);font-size:1.35rem;font-weight:500;color:var(--tinta);letter-spacing:-.01em;margin-bottom:4px}
.dc-role{font-size:.74rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--cafe);margin-bottom:14px}
.dc-bio{font-size:.93rem;line-height:1.6;margin-top:12px}
.dc-bio p{margin-bottom:12px}

/* ---------- Pie de página ---------- */
.site-footer{background:var(--oscuro);color:#CFC6B8;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;padding:88px 0 64px}
.footer-grid img{height:64px;width:auto;margin-bottom:24px}
.footer-lema{font-family:var(--display);font-size:1.15rem;line-height:1.45;color:var(--papel);max-width:340px}
.footer-col h4{font-family:var(--body);font-size:.74rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--arena);margin-bottom:18px}
.footer-col a{display:block;padding:6px 0;font-size:.96rem;color:#E9E3D8}
.footer-col a:hover{color:var(--blanco);text-decoration:underline;text-underline-offset:4px}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:28px 0 36px;border-top:1px solid #4A423B;font-size:.85rem;color:#A99F92}
.footer-bottom nav{display:flex;gap:24px}
.footer-bottom a:hover{color:var(--papel)}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .servicio{grid-template-columns:56px 1fr 180px}
  .servicio p{grid-column:2/3}
  .servicio .thumb{grid-row:1/3;grid-column:3}
  .detail-wrap{grid-template-columns:1fr;gap:48px}
  .detail-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  body{font-size:16px}
  .container,.breadcrumb,.page-head,.page-hero,.detail-wrap,.intro-lede{padding-left:20px;padding-right:20px}
  .menu{display:none}
  .menu-movil{display:block;position:relative}
  .menu-movil summary{list-style:none;display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border:1px solid var(--tinta);border-radius:999px;font-weight:600;cursor:pointer}
  .menu-movil summary::-webkit-details-marker{display:none}
  .menu-movil[open] .panel{display:flex}
  .menu-movil .panel{display:none;flex-direction:column;position:absolute;right:0;top:56px;width:min(320px,calc(100vw - 40px));background:var(--blanco);border:1px solid var(--arena);border-radius:var(--radio);padding:10px;box-shadow:0 18px 40px rgba(35,31,27,.14)}
  .menu-movil .panel a{padding:12px 14px;border-radius:9px;color:var(--tinta)}
  .menu-movil .panel a.sub{padding-left:28px;font-size:.92rem;color:var(--gris)}
  .menu-movil .panel a:hover{background:var(--papel)}
  .marca small{display:none}
  .hero{padding:48px 0 32px}
  .hero-grid,.section-head,.split,.banda{grid-template-columns:1fr;gap:28px}
  .hero-media{aspect-ratio:4/3;margin-top:40px}
  .section{padding:72px 0}
  .servicio{grid-template-columns:1fr;gap:12px}
  .servicio .num{display:none}
  .servicio .thumb{grid-row:auto;grid-column:auto;order:-1}
  .servicio p{grid-column:auto}
  .cards-3,.proyectos-grid,.related-grid,.directivo-row{grid-template-columns:1fr}
  .banda-texto{padding:40px 28px}
  .banda-media{aspect-ratio:4/3}
  .page-hero .media{aspect-ratio:4/3}
  .footer-grid{grid-template-columns:1fr;gap:36px;padding:64px 0 40px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}