/* ===============================
   VARIABLES & BASE THEME
   =============================== */
:root {
  /* Palette */
  --clr-dark: #1c1d21;
  --clr-light: #ffffff;
  --clr-gray-600: #6d7176;
  --clr-gray-100: #f4f5f6;
  --clr-accent: #b71c1c; /* Rojo corporativo */

  /* Typography */
  --ff-base: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --ff-heading: "Poppins", sans-serif;

  /* White‑space scale */
  --space-xs: .75rem;
  --space-sm: 1.25rem;
  --space-md: 2rem;
  --space-lg: min(8vw, 4rem);
  --space-xl: clamp(3rem, 10vw, 6rem);

  /* Content width */
  --content-max: 1200px;
}

/******************************
  RESET
******************************/
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
img{display:block;max-width:100%;height:auto}
ul[role="list"],ol[role="list"]{list-style:none}

body{
  font-family:var(--ff-base);
  font-size:clamp(.95rem,1vw + .6rem,1.05rem);
  color:var(--clr-dark);
  background:var(--clr-light);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--clr-accent)}

/* Utility container */
.container{
  width:min(92%,var(--content-max));
  margin-inline:auto;
}
.text-center{text-align:center}
.accent{color:var(--clr-accent)}

/******************************
  NAVIGATION
******************************/
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  background:rgba(0,0,0,.55);
  backdrop-filter:blur(10px);
  z-index:100;
  box-shadow:0 4px 10px rgba(0,0,0,.15);
}
.nav-wrapper{
  max-width:var(--content-max);
  margin-inline:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:var(--space-sm) var(--space-xs);
}
.logo{
  font-weight:700;
  font-size:1.1rem;
  color:var(--clr-light);
  letter-spacing:.05em;
}
.main-nav ul{display:flex;gap:var(--space-md);align-items:center;}
.main-nav a{
  font-weight:600;
  font-size:.95rem;
  letter-spacing:.03em;
  padding-block:.25rem;
  color:var(--clr-light);
  position:relative;
}
.main-nav a::after{
  content:"";
  position:absolute;left:0;bottom:-4px;
  width:0;height:2px;
  background:var(--clr-accent);
  transition:width .3s ease;
}
.main-nav a:hover::after,.main-nav .active a::after{width:100%}

/******************************
  HERO
******************************/
.hero{
  position:relative;
  min-height:100svh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  color:var(--clr-light);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url('../img/hero_principal.webp'); /* OJO: usa ../ si tu CSS está en assets/css/ */
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  filter: brightness(.45);
}
.hero__content{position:relative;z-index:1;padding-inline:var(--space-md);}  
.hero__content h1{
  font-family:var(--ff-heading);
  font-weight:800;
  font-size:clamp(2.7rem,6vw,4.8rem);
  line-height:1.1;
  max-width:22ch;
  margin-inline:auto;
}
.hero__content .tagline{font-size:1.4rem;font-weight:600;letter-spacing:.05em;margin-bottom:var(--space-md);}
.cta-primary{
  display:inline-block;
  background:var(--clr-accent);
  color:var(--clr-light);
  padding:.9em 2.4em;
  border-radius:4px;
  font-weight:600;
  letter-spacing:.03em;
  transition:background .25s;
}
.cta-primary:hover{background:#8e1515;}

.portfolio-hero {
  background-image: url('../img/portfolio/render_proyecto-01_1.webp');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}
.contacto-hero {
  background-image: url('../img/cta_background.webp');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}


/******************************
  STATS STRIP
******************************/
.stats{
  background:var(--clr-gray-100);
  padding:var(--space-md) 0;
  display:flex;
  justify-content:center;
  gap:clamp(2rem,6vw,6rem);
  text-align:center;
  flex-wrap:wrap;
}
.stat{
  font-weight:700;
  font-size:clamp(1.8rem,2vw + 1rem,2.4rem);
  color:var(--clr-dark);
}
.stat small{display:block;font-weight:400;font-size:.9rem;color:var(--clr-gray-600);}

/******************************
  SERVICE CARDS
******************************/
.services{padding:var(--space-xl) 0;}
.service-grid{
  display:grid;
  gap:var(--space-md);
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
}
.card{
  padding:var(--space-md);
  border:1px solid #e6e7e8;
  border-radius:6px;
  background:var(--clr-light);
  box-shadow:0 4px 14px rgba(0,0,0,.05);
  transition:transform .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-6px);box-shadow:0 8px 20px rgba(0,0,0,.08);} 
.card h3{font-size:1.25rem;margin-bottom:.6rem;}
.card p{font-size:.95rem;color:var(--clr-gray-600)}

/******************************
  IMAGE + TEXT SPLIT
******************************/
.image-text{padding:var(--space-xl) 0;}
.split{display:grid;gap:var(--space-lg);align-items:center;grid-template-columns:1fr 1fr;}
.split__text h2{font-size:clamp(2rem,5vw,3rem);line-height:1.15;margin-bottom:var(--space-sm);}
.split__text p{max-width:46ch;color:var(--clr-gray-600);}
@media(max-width:900px){.split{grid-template-columns:1fr;}}

/******************************
  CTA BANNER
******************************/
.cta-banner {
  position: relative; /* MUY IMPORTANTE: El padre debe ser relativo */
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-light);
  text-align: center;
  overflow: hidden; /* Evita que el fondo se salga si hay bordes redondeados */
}

.cta-banner__bg {
  /* --- ESTAS SON LAS LÍNEAS CLAVE --- */
  position: absolute; /* 1. Lo sacamos del flujo normal */
  inset: 0;           /* 2. Lo estiramos para que ocupe todo el padre (top, right, bottom, left = 0) */
  z-index: -1;        /* 3. Lo enviamos detrás del contenido */

  /* --- Tus reglas existentes --- */
  background-image: url('../img/cta_background.webp');
  background-size: cover;
  background-position: center;
  background-attachment: fixed; /* Opcional: si quieres el efecto parallax */
  
  /* --- RECOMENDACIÓN: Añadir un filtro para que el texto se lea mejor --- */
  filter: brightness(.45);
}

.cta-banner__content {
  position: relative; /* Asegura que el contenido se mantenga visible */
  padding-inline: var(--space-md);
}

/******************************
  FOOTER
******************************/
.site-footer{background:#2c2d31;color:#cfd0d2;padding:var(--space-xl) 0;font-size:.9rem;}
.footer-grid{display:grid;gap:var(--space-lg) var(--space-md);grid-template-columns:repeat(auto-fit,minmax(220px,1fr));}
.footer-col h4{font-size:1.05rem;color:var(--clr-light);margin-bottom:var(--space-xs);}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:.55rem;}
.footer-col a{color:#cfd0d2;}
.footer-col a:hover{color:var(--clr-accent);}

/* ====== FORMULARIO DE CONTACTO ====== */
.form-grid{
  display:grid;
  gap:var(--space-sm);
}

.form-grid label{
  font-weight:600;
  font-size:.95rem;
}

.form-grid input[type="text"],
.form-grid input[type="email"],
.form-grid input[type="tel"],
.form-grid textarea{
  width:100%;
  padding:.65em .9em;
  border:1px solid #d8d9da;
  border-radius:4px;
  font:inherit;
}

.form-grid textarea{resize:vertical;min-height:140px;}

.form-grid .checkbox{
  display:flex;
  gap:.5rem;
  align-items:flex-start;
  font-size:.9rem;
}

.form-grid button{
  justify-self:start;              /* se alinea a la izq dentro del grid */
}
.footer-col ul{
  margin:0;
  padding:0;
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:.35rem;
  font-size:.82rem;      /* más discreto que el texto principal */
}
.footer-col a:hover{ text-decoration:underline; }


/* ==== SOBRE–INTRO =================================================== */
.about-intro { padding: var(--space-xl) 0; }

.about-intro__title {
  font-family: var(--ff-heading);
  font-weight: 700;
  font-size: clamp(2.2rem, 4vw + 1rem, 3.6rem);
  line-height: 1.15;
  max-width: 20ch;      /* controla la longitud de línea */
  margin-bottom: var(--space-sm);
}

.about-intro__lead { max-width: 46ch; color: var(--clr-gray-600); }

.about-intro__img {   /* mantiene proporción y recorta */
  overflow: hidden; border-radius: 6px; box-shadow: 0 8px 22px rgba(0,0,0,.12);
}
.about-intro__img img { width: 100%; height: auto; display: block; }

@media (max-width: 900px) {
  .about-intro__img { order: -1; margin-bottom: var(--space-md); }
}

/* Ajustes rápidos */
.services__grid{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:var(--space-lg);
  margin-block:var(--space-md);
}
.service-card{
  max-width:340px;
  flex:1 1 280px;
  padding:var(--space-md);
  border:1px solid #e6e7e8;
  border-radius:6px;
  background:#fff;
  text-align:center;
  transition:transform .25s, box-shadow .25s;
}
.service-card:hover{
  transform:translateY(-6px);
  box-shadow:0 8px 24px rgba(0,0,0,.08);
}
.service-card__icon{
  width:48px;
  margin-bottom:var(--space-xs);
}
