/* =========================================================
   Potera — Hoja de estilos principal
   Estilo: Cuadrícula Analítica de Contabilidad
   Paleta: blanco + gris grafito + acentos verde menta
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@500;600;700;800&family=Inter:wght@400;500;600&display=swap');

:root{
  --color-bg: #ffffff;
  --color-bg-alt: #f4f6f5;
  --color-graphite: #2c3036;
  --color-graphite-soft: #4b5158;
  --color-line: #dfe3e2;
  --color-mint: #2fae82;
  --color-mint-dark: #24906c;
  --color-mint-tint: #e7f6ef;
  --font-heading: 'Manrope', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius: 6px;
  --container: 1180px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-graphite);
  background: var(--color-bg);
  line-height: 1.6;
  font-size: 16px;
}
img{ max-width: 100%; display: block; }
a{ color: var(--color-mint-dark); text-decoration: none; }
a:hover{ text-decoration: underline; }
h1,h2,h3,h4{
  font-family: var(--font-heading);
  color: var(--color-graphite);
  line-height: 1.25;
  margin: 0 0 0.6em;
}
p{ margin: 0 0 1em; }
ul{ margin: 0 0 1em; padding-left: 1.2em; }
.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header / Nav ---------- */
.site-header{
  border-bottom: 1px solid var(--color-line);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo{
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--color-graphite);
  letter-spacing: -0.02em;
}
.logo-dot{ color: var(--color-mint); }
.main-nav ul{
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.main-nav a{
  color: var(--color-graphite-soft);
  font-weight: 500;
  font-size: 0.95rem;
}
.main-nav a:hover{ color: var(--color-mint-dark); text-decoration: none; }
.nav-cta{
  padding: 8px 18px;
  border: 1px solid var(--color-mint);
  border-radius: var(--radius);
  color: var(--color-mint-dark) !important;
}
.nav-toggle{
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span{
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-graphite);
}

/* ---------- Hero (sin badges, sin banners) ---------- */
.hero{
  border-bottom: 1px solid var(--color-line);
  background: var(--color-bg-alt);
}
.hero-inner{
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding: 72px 24px;
  max-width: var(--container);
  margin: 0 auto;
}
.hero h1{
  font-size: 2.5rem;
  max-width: 22ch;
}
.hero p{
  font-size: 1.1rem;
  color: var(--color-graphite-soft);
  max-width: 46ch;
}
.hero-figure img{
  border-radius: var(--radius);
  border: 1px solid var(--color-line);
}
.hero-actions{
  display: flex;
  gap: 14px;
  margin-top: 8px;
  flex-wrap: wrap;
}
.page-hero{
  padding: 56px 24px;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-bg-alt);
}
.page-hero .container{ max-width: 860px; }
.page-hero h1{ font-size: 2.1rem; }
.page-hero p{ color: var(--color-graphite-soft); font-size: 1.05rem; }
.breadcrumb{
  font-size: 0.85rem;
  color: var(--color-graphite-soft);
  margin-bottom: 18px;
}
.breadcrumb a{ color: var(--color-graphite-soft); }

/* ---------- Buttons ---------- */
.btn{
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary{
  background: var(--color-mint);
  color: #ffffff;
}
.btn-primary:hover{ background: var(--color-mint-dark); text-decoration: none; }
.btn-outline{
  background: transparent;
  border: 1px solid var(--color-graphite);
  color: var(--color-graphite);
}
.btn-outline:hover{ border-color: var(--color-mint-dark); color: var(--color-mint-dark); text-decoration: none; }

/* ---------- Sections & Grid ---------- */
main{ display: block; }
.section{ padding: 64px 0; }
.section-alt{ background: var(--color-bg-alt); }
.section-head{ max-width: 680px; margin-bottom: 40px; }
.section-head p{ color: var(--color-graphite-soft); }
.eyebrow{
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-mint-dark);
  margin-bottom: 10px;
}

.grid-cards{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
}
.grid-cards .card{
  padding: 30px;
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}
.grid-cards .card:nth-child(3n){ border-right: none; }
.card-icon{
  width: 40px;
  height: 40px;
  margin-bottom: 16px;
  color: var(--color-mint-dark);
}
.card h3{ font-size: 1.1rem; margin-bottom: 8px; }
.card p{ color: var(--color-graphite-soft); font-size: 0.95rem; margin-bottom: 0; }

.two-col{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.two-col img{ border: 1px solid var(--color-line); border-radius: var(--radius); }
.two-col.reverse .col-media{ order: 2; }

.list-check{ list-style: none; padding-left: 0; }
.list-check li{
  position: relative;
  padding-left: 30px;
  margin-bottom: 12px;
  color: var(--color-graphite-soft);
}
.list-check li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 18px;
  height: 18px;
  border: 1px solid var(--color-mint);
  border-radius: 3px;
  background: var(--color-mint-tint);
}
.list-check li::after{
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  width: 8px;
  height: 4px;
  border-left: 2px solid var(--color-mint-dark);
  border-bottom: 2px solid var(--color-mint-dark);
  transform: rotate(-45deg);
}

table.data-table{
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.95rem;
}
table.data-table th, table.data-table td{
  border: 1px solid var(--color-line);
  padding: 12px 14px;
  text-align: left;
}
table.data-table th{
  background: var(--color-bg-alt);
  font-family: var(--font-heading);
  font-weight: 700;
}

blockquote.analysis-note{
  border-left: 3px solid var(--color-mint);
  background: var(--color-bg-alt);
  padding: 18px 22px;
  margin: 28px 0;
  color: var(--color-graphite-soft);
  font-style: italic;
}

/* ---------- Article / Policy pages ---------- */
.article-content, .policy-content{
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 24px;
}
.article-content h2, .policy-content h2{
  margin-top: 2em;
  font-size: 1.4rem;
  border-top: 1px solid var(--color-line);
  padding-top: 1.2em;
}
.article-content h2:first-of-type, .policy-content h2:first-of-type{
  border-top: none;
  padding-top: 0;
  margin-top: 0.6em;
}
.policy-content h3{ font-size: 1.1rem; margin-top: 1.6em; }
.article-meta{
  color: var(--color-graphite-soft);
  font-size: 0.9rem;
  margin-bottom: 24px;
}
.article-content figure{ margin: 32px 0; }
.article-content figcaption{
  font-size: 0.85rem;
  color: var(--color-graphite-soft);
  margin-top: 8px;
}

/* ---------- Blog list ---------- */
.post-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.post-card{
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-bg);
}
.post-card img{ border-radius: 0; }
.post-card .post-body{ padding: 20px; }
.post-card h3{ font-size: 1.05rem; }
.post-card p{ color: var(--color-graphite-soft); font-size: 0.9rem; }
.post-tag{
  font-size: 0.75rem;
  color: var(--color-mint-dark);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}

/* ---------- FAQ Accordion ---------- */
.faq-item{
  border-bottom: 1px solid var(--color-line);
}
.faq-question{
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 20px 0;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--color-graphite);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-question .icon{
  font-size: 1.2rem;
  color: var(--color-mint-dark);
  transition: transform 0.2s ease;
}
.faq-item.open .faq-question .icon{ transform: rotate(45deg); }
.faq-answer{
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
  color: var(--color-graphite-soft);
}
.faq-item.open .faq-answer{ max-height: 600px; }
.faq-answer-inner{ padding: 0 0 20px; }

/* ---------- Glossary ---------- */
.glossary-list dt{
  font-family: var(--font-heading);
  font-weight: 700;
  margin-top: 22px;
  color: var(--color-graphite);
}
.glossary-list dd{
  margin: 6px 0 0;
  color: var(--color-graphite-soft);
}
.alpha-nav{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 30px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 14px;
}
.alpha-nav a{
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-graphite-soft);
  border-radius: 4px;
  font-size: 0.85rem;
}
.alpha-nav a:hover{ background: var(--color-mint-tint); color: var(--color-mint-dark); text-decoration: none; }

/* ---------- Contact form ---------- */
.contact-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.form-field{ margin-bottom: 20px; }
.form-field label{
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
}
.form-field input, .form-field textarea, .form-field select{
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-graphite);
  background: var(--color-bg);
}
.form-field textarea{ min-height: 130px; resize: vertical; }
.form-field input:focus, .form-field textarea:focus, .form-field select:focus{
  outline: none;
  border-color: var(--color-mint);
}
.form-note{ font-size: 0.85rem; color: var(--color-graphite-soft); }
#formSuccess{
  display: none;
  border: 1px solid var(--color-mint);
  background: var(--color-mint-tint);
  color: var(--color-mint-dark);
  padding: 16px 18px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-weight: 600;
}
.contact-info-block{
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px;
  background: var(--color-bg-alt);
}
.contact-info-block h3{ font-size: 1rem; margin-bottom: 4px; }
.contact-info-block .info-row{ margin-bottom: 18px; }
.contact-info-block .info-row span{
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-mint-dark);
  font-weight: 700;
  margin-bottom: 4px;
}

/* ---------- CTA band ---------- */
.cta-band{
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-bg-alt);
  padding: 48px 0;
  text-align: center;
}
.cta-band h2{ margin-bottom: 10px; }
.cta-band p{ color: var(--color-graphite-soft); max-width: 560px; margin: 0 auto 22px; }

/* ---------- Footer ---------- */
.site-footer{
  background: var(--color-graphite);
  color: #cfd3d1;
  margin-top: 40px;
}
.footer-grid{
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.3fr 1fr;
  gap: 40px;
  padding: 56px 24px 40px;
}
.footer-col h3{
  color: #ffffff;
  font-size: 0.95rem;
  margin-bottom: 16px;
}
.footer-col ul{ list-style: none; padding: 0; margin: 0; }
.footer-col li{ margin-bottom: 10px; }
.footer-col a{ color: #b7bcba; font-size: 0.9rem; }
.footer-col a:hover{ color: var(--color-mint); text-decoration: none; }
.footer-brand p{ color: #b7bcba; font-size: 0.9rem; }
.footer-brand .logo{ color: #ffffff; }
.footer-address, .footer-phone{ color: #b7bcba; font-size: 0.88rem; }
.footer-phone a{ color: #b7bcba; }
.footer-bottom{
  border-top: 1px solid #3d4147;
  padding: 20px 24px;
  font-size: 0.82rem;
  color: #9aa0a0;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .hero-inner{ grid-template-columns: 1fr; padding: 48px 24px; }
  .two-col{ grid-template-columns: 1fr; }
  .two-col.reverse .col-media{ order: 0; }
  .grid-cards{ grid-template-columns: 1fr 1fr; }
  .grid-cards .card:nth-child(2n){ border-right: none; }
  .post-grid{ grid-template-columns: 1fr 1fr; }
  .contact-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px){
  .main-nav{
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-line);
    display: none;
  }
  .main-nav.open{ display: block; }
  .main-nav ul{ flex-direction: column; gap: 0; padding: 12px 24px; }
  .main-nav li{ border-bottom: 1px solid var(--color-line); }
  .main-nav a{ display: block; padding: 14px 0; }
  .nav-toggle{ display: flex; }
  .grid-cards{ grid-template-columns: 1fr; }
  .grid-cards .card{ border-right: none; }
  .post-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; }
  .hero h1{ font-size: 1.9rem; }
}