/* =========================================================
   PERIFERIA CONSULTORES — Estética monocromática
   Inspirada en @periferia.arquitectos · minimal, editorial
   Negro #111 · Grises · Blanco · tipografía geométrica
   ========================================================= */

:root {
  --negro: #13294b;        /* azul marino principal */
  --negro-suave: #1b3a66;  /* azul marino claro */
  --carbon: #33415c;       /* texto */
  --gris: #6b7589;
  --gris-claro: #9aa3b5;
  --linea: #e3e7ee;
  --gris-fondo: #f4f6fa;
  --blanco: #ffffff;
  --crema: #f7f9fc;
  --marino: #13294b;
  --marino-claro: #1b3a66;
  --sombra: 0 10px 40px rgba(19, 41, 75, 0.07);
  --sombra-fuerte: 0 18px 50px rgba(19, 41, 75, 0.16);
  --radio: 2px;
  --transicion: 0.3s ease;
  --ancho: 1200px;
  --serif-geo: "Jost", "Century Gothic", "Futura", system-ui, sans-serif;
  --body: "Inter", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

/* Iconos SVG de línea */
.ico-circulo svg { width: 40px; height: 40px; stroke: var(--marino); fill: none; stroke-width: 1.4; }
.confianza-item .ico svg { width: 32px; height: 32px; stroke: var(--marino); fill: none; stroke-width: 1.3; }
.valor .ico svg { width: 46px; height: 46px; stroke: var(--marino); fill: none; stroke-width: 1.2; }
.servicio-detalle .ico-grande svg { width: 46px; height: 46px; stroke: var(--marino); fill: none; stroke-width: 1.2; }
.contacto-info .ico svg { width: 20px; height: 20px; stroke: var(--marino); fill: none; stroke-width: 1.4; }
.redes a svg { width: 18px; height: 18px; stroke: #fff; fill: none; stroke-width: 1.4; }
.redes a:hover svg { stroke: var(--marino); }
.wsp-float svg { width: 26px; height: 26px; stroke: #fff; fill: none; stroke-width: 1.6; }

body {
  font-family: var(--body);
  color: var(--carbon);
  line-height: 1.7;
  background: var(--blanco);
  -webkit-font-smoothing: antialiased;
  font-weight: 400;
}

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

a { color: var(--negro); text-decoration: none; transition: color var(--transicion), opacity var(--transicion); }
a:hover { opacity: 0.6; }

h1, h2, h3, h4 {
  font-family: var(--serif-geo);
  color: var(--negro);
  line-height: 1.15;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.contenedor { width: 90%; max-width: var(--ancho); margin: 0 auto; }

.seccion { padding: 100px 0; }
.seccion-alt { background: var(--crema); }

.eyebrow {
  display: inline-block;
  font-family: var(--body);
  font-size: 0.72rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--gris);
  margin-bottom: 20px;
}

.titulo-seccion { font-size: clamp(1.8rem, 3.4vw, 2.8rem); margin-bottom: 18px; font-weight: 300; }
.subtitulo-seccion { font-size: 1.05rem; color: var(--gris); max-width: 700px; font-weight: 400; }
.centrado { text-align: center; }
.centrado .subtitulo-seccion { margin-left: auto; margin-right: auto; }

/* ---------- Botones ---------- */
.btn {
  display: inline-block;
  padding: 15px 34px;
  border-radius: var(--radio);
  font-family: var(--body);
  font-weight: 500;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  border: 1px solid var(--negro);
  transition: all var(--transicion);
}
.btn-primario { background: var(--negro); color: #fff; }
.btn-primario:hover { background: #fff; color: var(--negro); opacity: 1; }
.btn-secundario { background: transparent; color: #fff; border-color: rgba(255,255,255,0.65); }
.btn-secundario:hover { background: #fff; color: var(--negro); opacity: 1; border-color: #fff; }
.btn-outline { background: transparent; color: var(--negro); border-color: var(--negro); }
.btn-outline:hover { background: var(--negro); color: #fff; opacity: 1; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--linea);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 22px 0; }

.logo { display: flex; flex-direction: column; line-height: 1; }
.logo .marca {
  font-family: var(--serif-geo);
  font-size: 1.7rem; font-weight: 400; letter-spacing: -0.02em;
  color: var(--negro); text-transform: lowercase;
}
.logo .punto { color: var(--negro); }
.logo .sub {
  font-family: var(--body);
  font-size: 0.74rem; letter-spacing: 0.42em; text-transform: uppercase;
  color: var(--gris); margin-top: 9px; padding-left: 3px;
}
.site-footer .logo .marca, .footer-logo .marca { color: #fff; }
/* Logo (imagen del cliente) */
.logo-img { height: 40px; width: auto; display: block; }
.footer-logo .logo-img-footer { height: 48px; width: auto; display: block; filter: brightness(0) invert(1); }

.nav-links { display: flex; align-items: center; flex-wrap: nowrap; gap: 30px; list-style: none; }
.nav-links li { white-space: nowrap; }
.nav-links a {
  font-family: var(--body); color: var(--negro); font-weight: 400;
  font-size: 0.76rem; letter-spacing: 0.14em; text-transform: uppercase; position: relative;
}
.nav-links a.activo, .nav-links a:hover { opacity: 1; color: var(--negro); }
.nav-links a.activo::after {
  content: ""; position: absolute; left: 0; bottom: -7px;
  width: 100%; height: 1px; background: var(--negro);
}
.nav-links .btn { padding: 11px 22px; }
.lang-li select {
  font-family: var(--body); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--negro); background: transparent; border: 1px solid var(--linea);
  padding: 6px 8px; border-radius: 2px; cursor: pointer;
}
.lang-li select:focus { outline: none; border-color: var(--negro); }

.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.menu-toggle span { width: 26px; height: 1.5px; background: var(--negro); transition: var(--transicion); }

/* ---------- Hero ---------- */
.hero {
  position: relative; color: #fff;
  background: var(--marino);
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: url("../img/hero-lineas.svg") center/cover no-repeat;
  opacity: 0.5;
}
.hero .contenedor { position: relative; z-index: 1; }
.hero-inner { padding: 150px 0 160px; max-width: 820px; }
.hero h1 {
  color: #fff; font-size: clamp(2.2rem, 5.5vw, 4rem); font-weight: 300;
  letter-spacing: -0.01em; margin-bottom: 26px; line-height: 1.1;
}
.hero p { font-size: 1.1rem; color: #ededed; margin-bottom: 40px; font-weight: 300; max-width: 640px; }
.hero-acciones { display: flex; gap: 16px; flex-wrap: wrap; }
.hero .eyebrow { color: #cfcfcf; }

.page-hero { background: var(--negro); color: #fff; padding: 110px 0 90px; }
.page-hero h1 { color: #fff; font-size: clamp(2rem, 4.5vw, 3.2rem); font-weight: 300; }
.page-hero p { color: #cfcfcf; font-size: 1.05rem; margin-top: 16px; max-width: 660px; font-weight: 300; }
.breadcrumb { font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gris-claro); margin-bottom: 22px; }
.breadcrumb a { color: var(--gris-claro); }
.breadcrumb a:hover { color: #fff; }

/* ---------- Franja de confianza ---------- */
.confianza { background: var(--crema); border-top: 1px solid var(--linea); border-bottom: 1px solid var(--linea); }
.confianza .contenedor { display: grid; grid-template-columns: repeat(3, 1fr); gap: 50px; padding: 56px 0; }
.confianza-item { display: flex; gap: 18px; align-items: flex-start; }
.confianza-item .ico { font-size: 1.3rem; opacity: 0.85; }
.confianza-item h4 { color: var(--negro); font-size: 0.95rem; margin-bottom: 5px; font-family: var(--body); font-weight: 600; letter-spacing: 0.02em; }
.confianza-item p { color: var(--gris); font-size: 0.88rem; margin: 0; }

/* ---------- Grids / tarjetas ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--linea); border-left: 1px solid var(--linea); }
.grid-3 .card { border-right: 1px solid var(--linea); border-bottom: 1px solid var(--linea); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; border-top: 1px solid var(--linea); border-left: 1px solid var(--linea); }
.grid-2 .card { border-right: 1px solid var(--linea); border-bottom: 1px solid var(--linea); }

.card {
  background: #fff; border-radius: 0; padding: 44px 36px;
  box-shadow: none; transition: background var(--transicion);
}
.card:hover { background: var(--crema); }
.card .ico-circulo {
  width: 72px; height: 72px; border-radius: 0;
  display: flex; align-items: center; justify-content: center;
  background: transparent; color: var(--negro); border: 1px solid var(--linea);
  font-size: 1.3rem; margin-bottom: 24px; flex-shrink: 0;}
/* Encabezado de tarjeta: icono + título en una fila (Por qué elegirnos) */
.card-head { display: flex; align-items: center; gap: 20px; margin-bottom: 14px; }
.card-head .ico-circulo { margin-bottom: 0; }
.card-head h3 { margin-bottom: 0; }
/* Palabras clave destacadas */
.kw { color: var(--marino); font-weight: 600; }
/* Frase destacada */
.destacado-frase { font-size: 1.15rem; color: var(--carbon); max-width: 760px; margin: 0 auto 10px; line-height: 1.6; }
/* Placeholder foto de oficina */
.foto-oficina {
  aspect-ratio: 4 / 3; width: 100%;
  border: 1px dashed #c3ccdb; background: var(--crema);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px; color: var(--gris); text-align: center;
}
.foto-oficina span { font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; }
.foto-oficina svg { width: 40px; height: 40px; stroke: var(--gris-claro); fill: none; stroke-width: 1.3; }
.card h3 { font-size: 1.25rem; margin-bottom: 14px; font-weight: 400; }
.card p { color: var(--gris); font-size: 0.95rem; }
.card .mas {
  display: inline-block; margin-top: 20px; font-family: var(--body);
  font-weight: 500; font-size: 0.74rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--negro);
}

/* ---------- Bloque split ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.split img { border-radius: 0; box-shadow: none; border: 1px solid var(--linea); background: var(--blanco); }
.split h2 { margin-bottom: 22px; }
.split p { margin-bottom: 18px; color: var(--carbon); }

/* ---------- Lista de chequeo ---------- */
.lista-check { list-style: none; margin-top: 14px; }
.lista-check li { position: relative; padding-left: 28px; margin-bottom: 13px; color: var(--carbon); }
.lista-check li::before {
  content: ""; position: absolute; left: 0; top: 11px;
  width: 14px; height: 1px; background: var(--negro);
}

/* ---------- Chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 0; margin-top: 30px; justify-content: center; }
.chip {
  background: transparent; color: var(--carbon);
  padding: 12px 24px; border: 1px solid var(--linea); border-radius: 0;
  font-family: var(--body); font-weight: 400; font-size: 0.82rem;
  letter-spacing: 0.08em; margin: -0.5px; transition: all var(--transicion);
}
.chip:hover { background: var(--negro); color: #fff; }

/* ---------- Valores ---------- */
.valores { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--linea); border-left: 1px solid var(--linea); }
.valor { text-align: left; padding: 38px 30px; background: #fff; border-right: 1px solid var(--linea); border-bottom: 1px solid var(--linea); }
.valor .ico { font-size: 1.5rem; margin-bottom: 16px; opacity: 0.85; }
.valor h4 { margin-bottom: 8px; font-weight: 400; font-size: 1.1rem; }
.valor p { color: var(--gris); font-size: 0.88rem; }

/* ---------- Servicio detallado ---------- */
.servicio-detalle { margin-bottom: 0; }
.servicio-detalle .card { display: grid; grid-template-columns: 90px 1fr; gap: 30px; align-items: start; border: 1px solid var(--linea); border-bottom: none; }
.servicio-detalle:last-child .card { border-bottom: 1px solid var(--linea); }
.servicio-detalle .ico-grande { font-size: 2.2rem; color: var(--negro); }
.servicio-detalle h3 { font-size: 1.5rem; font-weight: 400; }

/* ---------- Tabla posicionamiento ---------- */
.tabla-pos { width: 100%; border-collapse: collapse; margin-top: 18px; background: #fff; border: 1px solid var(--linea); }
.tabla-pos th, .tabla-pos td { padding: 22px 24px; text-align: left; border-bottom: 1px solid var(--linea); border-right: 1px solid var(--linea); font-size: 0.92rem; vertical-align: top; }
.tabla-pos thead th { background: var(--negro); color: #fff; font-family: var(--serif-geo); font-weight: 400; letter-spacing: 0.04em; }
.tabla-pos .destacado { background: var(--crema); }
.tabla-pos .destacado td:first-child { font-weight: 600; color: var(--negro); }

/* ---------- CTA banda ---------- */
.cta-banda { background: var(--negro); color: #fff; text-align: center; padding: 100px 0; }
.cta-banda h2 { color: #fff; font-size: clamp(1.8rem, 3.4vw, 2.6rem); margin-bottom: 18px; font-weight: 300; }
.cta-banda p { color: #cfcfcf; margin-bottom: 34px; font-size: 1.05rem; font-weight: 300; }
.cta-banda .btn-primario { background: #fff; color: var(--negro); border-color: #fff; }
.cta-banda .btn-primario:hover { background: transparent; color: #fff; }

/* ---------- Contacto ---------- */
.contacto-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 70px; align-items: start; }
.contacto-info .item { display: flex; gap: 18px; margin-bottom: 30px; align-items: flex-start; }
.contacto-info .ico {
  width: 44px; height: 44px; border-radius: 0; flex-shrink: 0;
  background: transparent; color: var(--negro); border: 1px solid var(--linea);
  display: flex; align-items: center; justify-content: center; font-size: 1.1rem;}
.contacto-info h4 { margin-bottom: 3px; font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; font-family: var(--body); font-weight: 600; }
.contacto-info p, .contacto-info a { color: var(--gris); font-size: 0.98rem; }

.form-card { background: #fff; padding: 0; border-radius: 0; box-shadow: none; border: none; }
.campo { margin-bottom: 24px; }
.campo label { display: block; font-family: var(--body); font-weight: 500; font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 10px; color: var(--negro); }
.campo input, .campo textarea {
  width: 100%; padding: 14px 0; border: none; border-bottom: 1px solid var(--linea); border-radius: 0;
  font-family: inherit; font-size: 1rem; background: transparent; transition: border var(--transicion);
}
.campo input:focus, .campo textarea:focus { outline: none; border-bottom-color: var(--negro); }
.campo input::placeholder, .campo textarea::placeholder { color: var(--gris-claro); }
.campo textarea { resize: vertical; min-height: 120px; }
.form-nota { font-size: 0.8rem; color: var(--gris-claro); margin-top: 8px; }
.form-mensaje { padding: 14px 16px; border: 1px solid var(--negro); margin-bottom: 20px; font-size: 0.9rem; display: none; }
.form-mensaje.ok { display: block; }

.mapa-promesa { margin-top: 30px; padding: 22px 24px; background: var(--crema); border-left: 2px solid var(--negro); font-size: 0.92rem; color: var(--carbon); }

/* ---------- Footer ---------- */
.site-footer { background: var(--negro); color: #aeb6c6; padding: 80px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 60px; }
.site-footer h4 { color: #fff; margin-bottom: 20px; font-family: var(--body); font-size: 0.74rem; letter-spacing: 0.18em; text-transform: uppercase; font-weight: 600; }
.site-footer a { color: #aeb6c6; }
.site-footer a:hover { color: #fff; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 12px; font-size: 0.92rem; }
.footer-logo .marca { font-family: var(--serif-geo); font-size: 1.7rem; font-weight: 400; color: #fff; text-transform: lowercase; letter-spacing: -0.02em; }
.footer-logo .punto { color: #fff; }
.footer-desc { font-size: 0.92rem; margin: 18px 0 22px; max-width: 360px; color: #97a0b3; }
.redes { display: flex; gap: 14px; }
.redes a {
  width: 42px; height: 42px; border-radius: 0; border: 1px solid rgba(255,255,255,0.2);
  display: flex; align-items: center; justify-content: center; transition: all var(--transicion);
}
.redes a:hover { background: #fff; border-color: #fff; opacity: 1; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); margin-top: 50px; padding-top: 26px; text-align: center; font-size: 0.8rem; letter-spacing: 0.03em; color: #8089a0; }
.footer-bottom p { margin: 0; }
.footer-bottom .credito { margin-top: 8px; color: #aeb6c6; }
.footer-bottom .credito a { color: #fff; }

/* WhatsApp flotante */
.wsp-float {
  position: fixed; bottom: 28px; right: 28px; z-index: 999;
  width: 54px; height: 54px; border-radius: 50%; background: var(--negro); color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--sombra-fuerte); transition: transform var(--transicion);
}
.wsp-float:hover { transform: scale(1.08); color: #fff; opacity: 1; }
.wsp-tip {
  position: absolute; right: 66px; top: 50%;
  transform: translateY(-50%) translateX(10px);
  background: #fff; color: var(--marino); white-space: nowrap;
  padding: 9px 15px; border-radius: 6px;
  font-family: var(--body); font-size: 0.82rem; font-weight: 600;
  box-shadow: var(--sombra-fuerte); opacity: 0; pointer-events: none;
  transition: opacity var(--transicion), transform var(--transicion);
}
.wsp-tip::after {
  content: ""; position: absolute; right: -5px; top: 50%; transform: translateY(-50%);
  border-top: 6px solid transparent; border-bottom: 6px solid transparent; border-left: 6px solid #fff;
}
.wsp-float:hover .wsp-tip { opacity: 1; transform: translateY(-50%) translateX(0); }
@media (max-width: 560px) { .wsp-tip { display: none; } }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .grid-3, .valores { grid-template-columns: repeat(2, 1fr); }
  .split, .contacto-grid { grid-template-columns: 1fr; gap: 44px; }
  .confianza .contenedor { grid-template-columns: 1fr; gap: 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-inner { padding: 110px 0 120px; }
  .nav-links {
    position: fixed; top: 75px; right: 0; width: 78%; max-width: 320px; height: calc(100vh - 75px);
    background: #fff; flex-direction: column; align-items: flex-start; gap: 6px;
    padding: 34px 30px; box-shadow: -10px 0 40px rgba(0,0,0,0.1);
    transform: translateX(100%); transition: transform var(--transicion); border-left: 1px solid var(--linea);
  }
  .nav-links.abierto { transform: translateX(0); }
  .nav-links li { width: 100%; }
  .nav-links li a { display: block; padding: 12px 0; width: 100%; }
  .menu-toggle { display: flex; }
}
@media (max-width: 560px) {
  .grid-3, .grid-2, .valores { grid-template-columns: 1fr; }
  .servicio-detalle .card { grid-template-columns: 1fr; gap: 18px; }
  .seccion { padding: 64px 0; }
  .tabla-pos { display: block; overflow-x: auto; white-space: nowrap; }
}


/* ---------- Proyectos / Mapa ---------- */
.mapa-wrap { display: grid; grid-template-columns: 1fr minmax(180px, 240px); gap: 56px; align-items: start; }
.proyectos-col { order: 1; }
.mapa-col { order: 2; position: sticky; top: 100px; text-align: center; }
.mapa-svg { height: 640px; width: auto; max-width: 100%; display: block; margin: 0 auto; }
.chile-outline { fill: var(--crema); stroke: var(--marino); stroke-width: 1.4; }
.pin { fill: var(--marino); cursor: pointer; transition: r .2s ease; }
.pin-sede { fill: var(--marino); cursor: pointer; transition: r .2s ease; }
.pin-halo { fill: none; stroke: var(--marino); stroke-width: 1.3; opacity: .45; }
.pin-label { font-family: var(--body); font-size: 13px; font-weight: 600; fill: var(--marino); opacity: 0; transition: opacity .2s ease; pointer-events: none; }
.pin-group:hover .pin-label, .pin-group.activo .pin-label { opacity: 1; }
.pin-group:hover .pin, .pin-group.activo .pin { r: 8; }
.pin-group:hover .pin-sede, .pin-group.activo .pin-sede { r: 10; }
.mapa-leyenda { display: flex; align-items: center; justify-content: center; gap: 10px; margin-top: 20px; font-size: .82rem; color: var(--gris); }
.mapa-leyenda .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--marino); display: inline-block; }
.mapa-leyenda .dot-sede { box-shadow: 0 0 0 3px rgba(19,41,75,.22); }
.proyectos-lista { list-style: none; }
.proyecto-item { display: flex; gap: 18px; padding: 18px 4px; border-bottom: 1px solid var(--linea); transition: background .2s ease; cursor: default; }
.proyecto-item:first-child { border-top: 1px solid var(--linea); }
.proyecto-item:hover, .proyecto-item.hover { background: var(--crema); }
.proyecto-item .num { font-family: var(--serif-geo); font-size: 1.05rem; color: var(--gris-claro); min-width: 30px; }
.proyecto-item h4 { font-family: var(--body); font-weight: 600; font-size: 1rem; margin-bottom: 3px; }
.proyecto-item span { color: var(--gris); font-size: .9rem; }
@media (max-width: 900px) {
  .mapa-wrap { grid-template-columns: 1fr; gap: 44px; }
  .mapa-col { position: static; max-width: 300px; margin: 0 auto; }
}