/* ============================================================
   CEEHV — Consultoría Empresarial Especializada
   Hoja de estilos principal
   Paleta e identidad tomadas del manual de marca proporcionado.
   Editar aquí las variables para ajustar color y tipografía
   en todo el sitio a la vez.
   ============================================================ */

:root {
  /* Paleta de marca */
  --navy: #101D2D;        /* Midnight Navy */
  --teal: #0C9563;        /* Deep Teal */
  --turquoise: #36A18B;   /* Turquesa Acento */
  --ivory: #F4F1EA;       /* Ivory */
  --graphite: #252A2E;    /* Graphite */
  --white: #FFFFFF;

  /* Variantes derivadas (hover, bordes, fondos) */
  --navy-soft: #1B2E44;
  --teal-dark: #086b47;
  --border-soft: #e4dfd3;
  --shadow-color: rgba(16, 29, 45, 0.10);

  /* Tipografía */
  --font-heading: "Playfair Display", Georgia, serif;
  --font-body: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Ritmo */
  --radius: 10px;
  --radius-lg: 18px;
  --max-width: 1180px;
  --section-space: clamp(3.5rem, 6vw, 6rem);
}

/* ---------- Reseteo básico ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--graphite);
  background: var(--white);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--teal-dark); text-decoration: none; }
a:hover { color: var(--teal-dark); text-decoration: underline; }
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--navy);
  line-height: 1.2;
  margin: 0 0 .6em;
  font-weight: 700;
}
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1.1em; }
ul { margin: 0 0 1.1em; padding-left: 1.3em; }
li { margin-bottom: .5em; }
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}
section { padding: var(--section-space) 0; }
.section-tight { padding: clamp(2rem, 4vw, 3.5rem) 0; }
.text-center { text-align: center; }
.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-size: .78rem;
  color: var(--teal-dark);
  margin-bottom: .8rem;
}
.lead {
  font-size: 1.15rem;
  color: var(--navy-soft);
  max-width: 62ch;
}
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap;
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 1.6rem;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: .95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
}
.btn-primary {
  background: linear-gradient(120deg, var(--teal-dark), var(--teal));
  color: var(--white);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 24px var(--shadow-color); color: var(--white); }
.btn-outline {
  background: transparent;
  border-color: var(--navy);
  color: var(--navy);
}
.btn-outline:hover { background: var(--navy); color: var(--white); border-color: var(--navy); }
.btn-outline-light {
  background: transparent;
  border-color: rgba(255,255,255,.55);
  color: var(--white);
}
.btn-outline-light:hover { background: var(--white); color: var(--navy); }
.btn-block { width: 100%; justify-content: center; }
.btn-sm { padding: .6rem 1.1rem; font-size: .85rem; }

/* ---------- Encabezado ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border-soft);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .8rem 0;
  gap: 1rem;
}
.brand { display: flex; align-items: center; gap: .6rem; }
.brand img { height: 44px; width: auto; }
.brand-fallback {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--navy);
  letter-spacing: .04em;
}
.main-nav { display: flex; align-items: center; gap: 1.8rem; }
.main-nav ul {
  display: flex;
  gap: 1.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.main-nav a {
  color: var(--navy);
  font-weight: 600;
  font-size: .95rem;
  padding: .4rem 0;
  border-bottom: 2px solid transparent;
}
.main-nav a:hover,
.main-nav a[aria-current="page"] { color: var(--teal-dark); border-bottom-color: var(--teal); }
.header-actions { display: flex; align-items: center; gap: .8rem; }
.mobile-only-link { display: none; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: .4rem;
}
.nav-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  margin: 5px 0;
  background: var(--navy);
  border-radius: 2px;
  transition: transform .2s ease, opacity .2s ease;
}

/* ---------- Menú lateral con submenús (escritorio) ---------- */
.has-sub { position: relative; }
.sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 280px;
  background: var(--white);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  box-shadow: 0 18px 40px var(--shadow-color);
  padding: .6rem;
  margin: .6rem 0 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity .15s ease, transform .15s ease, visibility .15s ease;
}
.has-sub:hover .sub-menu,
.has-sub:focus-within .sub-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.sub-menu li { margin: 0; }
.sub-menu a {
  display: block;
  padding: .55rem .7rem;
  border-radius: 8px;
  border-bottom: none;
  font-weight: 500;
}
.sub-menu a:hover { background: var(--ivory); color: var(--navy); }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, #163049 55%, var(--teal-dark) 100%);
  color: var(--white);
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
}
.hero .container {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 2.5rem;
  align-items: center;
}
.hero h1 { color: var(--white); }
.hero .eyebrow { color: var(--turquoise); }
.hero p.lead { color: rgba(255,255,255,.85); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 1.6rem; }
.hero-panel {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
}
.hero-panel h3 { color: var(--white); font-size: 1.05rem; }
.hero-panel ul { list-style: none; padding: 0; margin: 0; }
.hero-panel li {
  display: flex;
  gap: .6rem;
  padding: .55rem 0;
  border-bottom: 1px solid rgba(255,255,255,.12);
  color: rgba(255,255,255,.88);
  font-size: .95rem;
}
.hero-panel li:last-child { border-bottom: none; }

/* Hero simple para páginas internas */
.page-hero {
  background: linear-gradient(135deg, var(--navy), var(--teal-dark));
  color: var(--white);
  padding: clamp(2.6rem, 6vw, 4rem) 0;
}
.page-hero h1 { color: var(--white); margin-bottom: .5rem; }
.page-hero .lead { color: rgba(255,255,255,.85); }
.breadcrumb {
  font-size: .85rem;
  color: rgba(255,255,255,.65);
  margin-bottom: 1rem;
}
.breadcrumb a { color: rgba(255,255,255,.85); }
.breadcrumb a:hover { color: var(--white); }

/* ---------- Tarjetas ---------- */
.grid { display: grid; gap: 1.6rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--white);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  height: 100%;
  transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}
.card:hover { box-shadow: 0 18px 40px var(--shadow-color); transform: translateY(-3px); border-color: transparent; }
.card-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--ivory);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.1rem;
  color: var(--teal);
}
.card h3 { margin-bottom: .5rem; }
.card p:last-of-type { margin-bottom: .8rem; }
.card-link { font-weight: 700; font-size: .92rem; }
.card-link::after { content: " →"; }

.icon-list { list-style: none; padding: 0; margin: 0; }
.icon-list li {
  display: flex;
  gap: .7rem;
  align-items: flex-start;
  padding: .5rem 0;
}
.icon-list li::before {
  content: "";
  flex: 0 0 8px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--teal);
  margin-top: .55rem;
}

/* ---------- Franjas de sección ---------- */
.section-alt { background: var(--ivory); }
.section-navy { background: var(--navy); color: rgba(255,255,255,.9); }
.section-navy h2, .section-navy h3 { color: var(--white); }
.section-navy a:not(.btn) { color: var(--turquoise); }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; text-align: center; }
.stat-row strong { display: block; font-family: var(--font-heading); font-size: 1.9rem; color: var(--navy); }
.stat-row span { font-size: .88rem; color: var(--graphite); }

.step-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; }
.step {
  position: relative;
  padding: 1.8rem;
  background: var(--white);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
}
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 700;
  margin-bottom: 1rem;
}

/* ---------- Tabla comparativa (soluciones) ---------- */
.compare-table { width: 100%; border-collapse: collapse; background: var(--white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: 0 10px 30px var(--shadow-color); }
.compare-table th, .compare-table td { padding: 1rem 1.2rem; text-align: left; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
.compare-table th { background: var(--navy); color: var(--white); font-family: var(--font-heading); font-weight: 700; }
.compare-table tr:last-child td { border-bottom: none; }

/* ---------- FAQ ---------- */
.faq-item { border-bottom: 1px solid var(--border-soft); padding: 1.2rem 0; }
.faq-item summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--navy);
  font-family: var(--font-heading);
  font-size: 1.05rem;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.4rem; color: var(--teal); }
.faq-item[open] summary::after { content: "–"; }
.faq-item p { margin-top: .8rem; color: var(--graphite); }

/* ---------- Testimonios / casos ---------- */
.case-card {
  background: var(--white);
  border-left: 4px solid var(--teal);
  border-radius: var(--radius);
  padding: 1.6rem;
  box-shadow: 0 10px 26px var(--shadow-color);
}
.case-card .case-label { font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--teal-dark); font-weight: 700; }

/* ---------- Artículos / blog ---------- */
.article-card { display: flex; flex-direction: column; gap: .6rem; }
.article-meta { font-size: .82rem; color: var(--teal-dark); font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.article-body { font-size: 1.05rem; }
.article-body h2 { margin-top: 2rem; }
.article-body ul { padding-left: 1.4rem; }
.callout {
  background: var(--ivory);
  border-left: 4px solid var(--teal);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
  margin: 1.6rem 0;
}
.callout strong { color: var(--navy); }
.tag {
  display: inline-block;
  background: var(--ivory);
  color: var(--navy);
  font-size: .78rem;
  font-weight: 700;
  padding: .3rem .7rem;
  border-radius: 999px;
  margin: 0 .4rem .4rem 0;
}

/* ---------- CTA final ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--navy), var(--teal-dark));
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: clamp(2.2rem, 5vw, 3.5rem);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.cta-band h2 { color: var(--white); margin-bottom: .3rem; }
.cta-band p { color: rgba(255,255,255,.85); margin: 0; }
.cta-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ---------- Formulario de contacto ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-weight: 700; font-size: .88rem; color: var(--navy); margin-bottom: .4rem; }
input, select, textarea {
  width: 100%;
  padding: .8rem 1rem;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: .95rem;
  background: var(--white);
  color: var(--graphite);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(12,149,99,.15);
}
textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: .82rem; color: var(--graphite); opacity: .75; margin-top: .6rem; }
.form-alert {
  padding: 1rem 1.2rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  font-weight: 600;
}
.form-alert.success { background: #e3f5ec; color: var(--teal-dark); border: 1px solid var(--turquoise); }
.form-alert.error { background: #fbeaea; color: #a4302a; border: 1px solid #e5a7a2; }
.contact-info-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 1.1rem; }
.contact-info-list li { display: flex; gap: .9rem; align-items: flex-start; }
.contact-info-list strong { display: block; color: var(--navy); font-family: var(--font-heading); }

/* ---------- Pie de página ---------- */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,.78);
  padding: 3.5rem 0 1.6rem;
  font-size: .92rem;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 2.4rem; }
.footer-brand img { height: 40px; margin-bottom: 1rem; }
.footer-brand p { color: rgba(255,255,255,.65); max-width: 32ch; }
.footer-col h4 { color: var(--white); font-family: var(--font-body); font-size: .85rem; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 1rem; }
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .6rem; }
.footer-col a { color: rgba(255,255,255,.75); }
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.14);
  padding-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-size: .82rem;
  color: rgba(255,255,255,.55);
}
.footer-bottom a { color: rgba(255,255,255,.7); }
.footer-bottom nav { display: flex; gap: 1.2rem; flex-wrap: wrap; }

/* ---------- Botón flotante de WhatsApp ---------- */
.whatsapp-float {
  position: fixed;
  bottom: 1.6rem;
  right: 1.6rem;
  z-index: 70;
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  background: #1FAF56;
  color: var(--white);
  padding: .85rem 1.2rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: .9rem;
  box-shadow: 0 12px 30px rgba(16,29,45,.28);
  transition: transform .15s ease;
}
.whatsapp-float:hover { transform: translateY(-3px); color: var(--white); }
.whatsapp-float svg { width: 22px; height: 22px; flex-shrink: 0; }

/* ---------- Utilidades responsivas ---------- */
@media (max-width: 980px) {
  .hero .container { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stat-row { grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }
  .step-row { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .main-nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(320px, 85vw);
    height: 100vh;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    padding: 5.5rem 1.6rem 2rem;
    box-shadow: -20px 0 40px rgba(16,29,45,.18);
    transform: translateX(100%);
    transition: transform .25s ease;
    overflow-y: auto;
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; gap: .3rem; width: 100%; }
  .main-nav ul > li { width: 100%; }
  .main-nav a { display: block; padding: .8rem 0; border-bottom: 1px solid var(--border-soft); }
  .sub-menu {
    position: static;
    opacity: 1; visibility: visible; transform: none;
    display: none;
    box-shadow: none;
    border: none;
    padding-left: .8rem;
    margin: 0;
  }
  .has-sub.is-expanded .sub-menu { display: block; }
  .nav-toggle { display: block; }
  .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); }
  .header-actions .btn-sm.desktop-only { display: none; }
  .mobile-only-link { display: block !important; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; align-items: flex-start; }
  .whatsapp-float span { display: none; }
  .whatsapp-float { padding: .9rem; }
}

/* Fondo oscuro tras abrir el menú móvil */
.nav-backdrop {
  position: fixed; inset: 0;
  background: rgba(16,29,45,.5);
  z-index: 55;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease;
}
.nav-backdrop.is-visible { opacity: 1; visibility: visible; }