/* Socio Industria — hoja de estilos principal */
:root {
  --teal: #007473;
  --teal-dark: #00504f;
  --teal-deep: #0b3535;
  --teal-soft: #e3f0ef;
  --teal-mist: #f2f7f7;
  --ink: #17282a;
  --ink-2: #3f5254;
  --ink-3: #6c7d7f;
  --line: #d9e3e3;
  --bg: #ffffff;
  --bg-alt: #f6f8f8;
  --white: #ffffff;
  --font-head: 'Oswald', 'Arial Narrow', sans-serif;
  --font-body: 'Source Sans 3', 'Segoe UI', system-ui, sans-serif;
  --radius: 6px;
  --wrap: 1140px;
  --gutter: 20px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--teal); text-decoration: none; }
a:hover { color: var(--teal-dark); }
h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 400;
  line-height: 1.15;
  margin: 0 0 .5em;
  color: var(--ink);
  letter-spacing: .01em;
}
h1 { font-size: clamp(2.2rem, 5.2vw, 3.6rem); font-weight: 300; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); font-weight: 300; }
h3 { font-size: 1.35rem; }
p { margin: 0 0 1em; }
.lead { font-size: 1.2rem; color: var(--ink-2); }
.wrap { width: min(var(--wrap), 100% - 2 * var(--gutter)); margin-inline: auto; }
.eyebrow {
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: .82rem;
  color: var(--teal);
  margin-bottom: .9rem;
}
.eyebrow.light { color: rgba(255,255,255,.75); }
.muted { color: var(--ink-3); }
.skip { position: absolute; left: -999px; top: 0; background: var(--teal); color: #fff; padding: .5rem 1rem; z-index: 100; }
.skip:focus { left: 8px; top: 8px; }

/* Botones */
.btn {
  display: inline-block;
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .95rem;
  padding: .8rem 1.5rem;
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  transition: background .2s, color .2s, border-color .2s, transform .15s;
  cursor: pointer;
  line-height: 1.2;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--teal); color: #fff; border-color: var(--teal); }
.btn-primary:hover { background: var(--teal-dark); border-color: var(--teal-dark); color: #fff; }
.btn-outline { color: var(--teal); border-color: var(--teal); background: transparent; }
.btn-outline:hover { background: var(--teal-soft); }
.btn-light { background: #fff; color: var(--teal); border-color: #fff; }
.btn-light:hover { background: var(--teal-soft); color: var(--teal-dark); }
.btn-ghost { color: #fff; border-color: rgba(255,255,255,.6); }
.btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,.08); color: #fff; }
.link-arrow { font-weight: 600; }
.link-arrow::after { content: " →"; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 76px; gap: 1rem; }
.brand img { width: 150px; height: auto; }
.nav ul { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; gap: 1.8rem; }
.nav a {
  font-family: var(--font-head); text-transform: uppercase; letter-spacing: .1em; font-size: .9rem;
  color: var(--ink-2); padding: .4rem 0; border-bottom: 2px solid transparent;
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--teal); border-color: var(--teal); }
.nav .nav-cta a { border-bottom: 0; padding: .65rem 1.2rem; color: #fff; }
.nav .nav-cta a:hover { color: #fff; }
.nav-toggle { display: none; background: none; border: 0; width: 44px; height: 44px; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; height: 2px; background: var(--teal); margin: 6px 0; transition: transform .2s, opacity .2s; }
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav { position: absolute; left: 0; right: 0; top: 100%; background: #fff; border-bottom: 1px solid var(--line); display: none; }
  .nav.open { display: block; }
  .nav ul { flex-direction: column; align-items: stretch; gap: 0; padding: .5rem var(--gutter) 1rem; }
  .nav li a { display: block; padding: .8rem 0; border-bottom: 1px solid var(--line); }
  .nav .nav-cta { margin-top: .8rem; }
  .nav .nav-cta a { text-align: center; border-bottom: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
}

/* Secciones */
.section { padding: clamp(3.5rem, 7vw, 6rem) 0; }
.section-alt { background: var(--bg-alt); }
.section-teal { background: var(--teal-deep); color: #e6efee; }
.section-teal h2, .section-teal h3 { color: #fff; }
.section-head { max-width: 720px; margin-bottom: 2.5rem; }
.section-head.center { margin-inline: auto; text-align: center; }

/* Hero */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(160deg, var(--teal-deep) 0%, var(--teal-dark) 55%, var(--teal) 100%);
  color: #fff;
  padding: clamp(4rem, 9vw, 7.5rem) 0;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: url('/assets/img/mark-lines.svg') no-repeat right -80px center / 720px auto;
  opacity: .12; pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; max-width: 760px; }
.hero h1 { color: #fff; margin-bottom: 1.2rem; }
.hero .lead { color: rgba(255,255,255,.85); font-size: clamp(1.1rem, 2vw, 1.3rem); max-width: 620px; }
.hero .eyebrow { color: rgba(255,255,255,.7); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.hero-tags { display: flex; flex-wrap: wrap; gap: .6rem 1.6rem; margin-top: 2.6rem; padding-top: 1.6rem; border-top: 1px solid rgba(255,255,255,.2); font-family: var(--font-head); text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; color: rgba(255,255,255,.7); }

/* Page hero (páginas interiores) */
.page-hero { background: var(--teal-mist); border-bottom: 1px solid var(--line); padding: clamp(3rem, 6vw, 4.5rem) 0; }
.page-hero .lead { max-width: 720px; }

/* Grillas */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
@media (min-width: 1000px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.8rem 1.6rem; position: relative;
  transition: border-color .2s, box-shadow .2s;
}
.card:hover { border-color: var(--teal); box-shadow: 0 10px 30px -18px rgba(0,116,115,.5); }
.card h3 { margin-top: .6rem; }
.card p:last-child { margin-bottom: 0; }
.card .num {
  font-family: var(--font-head); font-weight: 300; font-size: 2rem; color: var(--teal); line-height: 1;
}
.card-link { display: block; color: inherit; }
.card-link:hover { color: inherit; }
.card-icon { width: 44px; height: 44px; color: var(--teal); margin-bottom: 1rem; }
.card-icon svg { width: 100%; height: 100%; }

/* Bloques de servicio (página servicios) */
.service {
  display: grid; grid-template-columns: 1fr; gap: 1.5rem;
  padding: 2.5rem 0; border-top: 1px solid var(--line);
}
.service:first-of-type { border-top: 0; padding-top: 0; }
@media (min-width: 820px) { .service { grid-template-columns: 1fr 1.6fr; gap: 3rem; } }
.service h3 { font-size: 1.7rem; font-weight: 300; }
.service .code { font-family: var(--font-head); color: var(--teal); letter-spacing: .14em; font-size: .85rem; text-transform: uppercase; display: block; margin-bottom: .5rem; }
.service ul { padding-left: 1.2rem; margin: .5rem 0 1rem; }
.service li { margin-bottom: .35rem; }
.service .para { font-size: .95rem; color: var(--ink-3); }

/* Audiencias */
.aud { display: grid; gap: 1.5rem; }
@media (min-width: 820px) { .aud { grid-template-columns: 1fr 1fr; } }
.aud-item { background: #fff; border-left: 4px solid var(--teal); padding: 1.6rem 1.8rem; border-radius: 0 var(--radius) var(--radius) 0; box-shadow: 0 1px 0 var(--line); }
.aud-item ul { margin: .6rem 0 0; padding-left: 1.2rem; color: var(--ink-2); }

/* Proceso */
.steps { counter-reset: step; display: grid; gap: 1.5rem; }
@media (min-width: 720px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.step { padding: 1.5rem; border-top: 3px solid rgba(255,255,255,.25); }
.step::before { counter-increment: step; content: "0" counter(step); font-family: var(--font-head); font-weight: 300; font-size: 2.4rem; color: #fff; opacity: .6; display: block; margin-bottom: .5rem; line-height: 1; }
.step h3 { font-size: 1.2rem; }
.step p { color: rgba(255,255,255,.78); margin: 0; font-size: .98rem; }

/* Principios / enfoque */
.principios { display: grid; gap: 2rem; }
@media (min-width: 820px) { .principios { grid-template-columns: 1fr 1fr; } }
.principio h3 { display: flex; align-items: baseline; gap: .8rem; }
.principio h3 span { font-family: var(--font-head); font-weight: 300; color: var(--teal); font-size: 1rem; letter-spacing: .1em; }

/* Análisis */
.post-list { display: grid; gap: 1.5rem; }
.post-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.8rem; background: #fff; }
.post-card:hover { border-color: var(--teal); }
.post-meta { font-family: var(--font-head); text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; color: var(--ink-3); margin-bottom: .6rem; }
.post-meta .cat { color: var(--teal); }
.post-card h3 { font-size: 1.45rem; font-weight: 400; }
.post-card h3 a { color: var(--ink); }
.post-card h3 a:hover { color: var(--teal); }
.article { max-width: 760px; }
.article h1 { font-size: clamp(2rem, 4.5vw, 3rem); }
.article-body { font-size: 1.12rem; }
.article-body h2 { font-size: 1.6rem; margin-top: 2rem; }
.article-body blockquote { border-left: 4px solid var(--teal); margin: 1.5rem 0; padding: .4rem 1.2rem; color: var(--ink-2); font-style: italic; }
.empty { padding: 2rem; border: 1px dashed var(--line); border-radius: var(--radius); color: var(--ink-3); text-align: center; }

/* Formulario */
.contact-grid { display: grid; gap: 3rem; }
@media (min-width: 900px) { .contact-grid { grid-template-columns: 1.3fr 1fr; } }
.form { display: grid; gap: 1.1rem; }
.form-row { display: grid; gap: 1.1rem; }
@media (min-width: 600px) { .form-row { grid-template-columns: 1fr 1fr; } }
label { display: block; font-weight: 600; font-size: .95rem; margin-bottom: .35rem; }
label .req { color: var(--teal); }
input[type="text"], input[type="email"], input[type="tel"], select, textarea {
  width: 100%; font: inherit; padding: .75rem .9rem; border: 1.5px solid var(--line); border-radius: var(--radius);
  background: #fff; color: var(--ink); transition: border-color .2s, box-shadow .2s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px rgba(0,116,115,.15); }
textarea { min-height: 150px; resize: vertical; }
.form small { color: var(--ink-3); }
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.alert { padding: 1rem 1.2rem; border-radius: var(--radius); margin-bottom: 1.5rem; border: 1px solid; }
.alert-ok { background: var(--teal-soft); border-color: var(--teal); color: var(--teal-dark); }
.alert-err { background: #fdf1f0; border-color: #d66; color: #8a2a2a; }
.contact-aside { background: var(--teal-mist); border-radius: var(--radius); padding: 2rem; align-self: start; }
.contact-aside h3 { margin-top: 0; }
.contact-aside ul { list-style: none; padding: 0; margin: 0; }
.contact-aside li { padding: .6rem 0; border-bottom: 1px solid var(--line); }
.contact-aside li:last-child { border-bottom: 0; }
.contact-aside li strong { display: block; font-family: var(--font-head); text-transform: uppercase; letter-spacing: .1em; font-size: .78rem; color: var(--ink-3); font-weight: 400; }

/* CTA band */
.cta-band { background: var(--teal); color: #fff; padding: clamp(3rem, 6vw, 4.5rem) 0; }
.cta-band h2 { color: #fff; max-width: 640px; }
.cta-band p { color: rgba(255,255,255,.85); max-width: 560px; margin-bottom: 0; }
.cta-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 2rem; }

/* Footer */
.site-footer { background: var(--teal-deep); color: rgba(255,255,255,.8); padding: 3.5rem 0 1.5rem; font-size: .95rem; }
.footer-grid { display: grid; gap: 2.5rem; }
@media (min-width: 760px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; } }
.footer-brand img { width: 150px; margin-bottom: 1rem; }
.footer-title { font-family: var(--font-head); text-transform: uppercase; letter-spacing: .14em; font-size: .8rem; color: #fff; margin-bottom: .8rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: .45rem; }
.site-footer a { color: rgba(255,255,255,.85); }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 2.5rem; padding-top: 1.2rem; font-size: .85rem; color: rgba(255,255,255,.55); }
.footer-bottom p { margin: 0; }

/* Utilidades */
.mt-2 { margin-top: 2rem; }
.center { text-align: center; }
.two-col { columns: 2; column-gap: 3rem; }
@media (max-width: 720px) { .two-col { columns: 1; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn:hover { transform: none; } }