/* ===== Variables y reset ===== */
:root{
  --verde-petroleo: #1F5C4C;
  --verde-petroleo-dark: #163f34;
  --gris-grafito: #2E2E2E;
  --blanco-roto: #F7F4EE;
  --verde-claro: #DCEAE3;
  --ambar: #D9902F;
  --blanco: #FFFFFF;

  --font-titulos: 'Poppins', sans-serif;
  --font-texto: 'Inter', sans-serif;

  --radius: 14px;
  --shadow: 0 8px 24px rgba(46,46,46,0.08);
  --shadow-hover: 0 12px 32px rgba(31,92,76,0.18);
  --transition: 0.25s ease;
}

*{ margin:0; padding:0; box-sizing:border-box; }

html{ scroll-behavior:smooth; }

/* Compensa el header fijo al saltar a una sección con el menú */
section[id]{ scroll-margin-top: 80px; }

body{
  font-family: var(--font-texto);
  color: var(--gris-grafito);
  background: var(--blanco-roto);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a{ text-decoration:none; color:inherit; }

ul{ list-style:none; }

h1, h2, h3{
  font-family: var(--font-titulos);
  color: var(--verde-petroleo);
  line-height: 1.25;
}

.container{
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Botones ===== */
.btn{
  display:inline-block;
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.98rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  text-align:center;
}

.btn-primary{
  background: var(--verde-petroleo);
  color: var(--blanco);
  box-shadow: var(--shadow);
}

.btn-primary:hover{
  background: var(--verde-petroleo-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.btn-secondary{
  background: transparent;
  color: var(--verde-petroleo);
  border: 2px solid var(--verde-petroleo);
}

.btn-secondary:hover{
  background: var(--verde-claro);
  transform: translateY(-3px);
}

/* ===== Header ===== */
.site-header{
  position: fixed;
  top:0; left:0; right:0;
  background: rgba(247,244,238,0.95);
  backdrop-filter: blur(6px);
  z-index: 1000;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 20px;
}

.logo{
  font-family: var(--font-titulos);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--verde-petroleo);
  white-space: nowrap;
}

.logo span{
  display:none;
}

.nav-toggle{
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:32px;
  height:28px;
  background:none;
  border:none;
  cursor:pointer;
  z-index: 1100;
}

.nav-toggle span{
  display:block;
  height:3px;
  width:100%;
  background: var(--verde-petroleo);
  border-radius:2px;
  transition: transform var(--transition), opacity var(--transition);
}

.main-nav{
  position:fixed;
  top:64px;
  left:0;
  right:0;
  background: var(--blanco);
  max-height:0;
  overflow:hidden;
  transition: max-height var(--transition);
  box-shadow: 0 8px 20px rgba(0,0,0,0.06);
}

.main-nav.open{
  max-height: 480px;
}

.main-nav ul{
  display:flex;
  flex-direction:column;
  padding: 10px 20px;
}

.main-nav ul li a{
  display:block;
  padding: 12px 0;
  font-weight:500;
  border-bottom: 1px solid var(--verde-claro);
  transition: color var(--transition);
}

.main-nav ul li a:hover{
  color: var(--verde-petroleo);
}

.nav-cta{
  display:block;
  margin: 14px 20px 18px;
  text-align:center;
}

/* ===== Hero ===== */
.hero{
  padding: 130px 0 70px;
  background: linear-gradient(180deg, var(--verde-claro) 0%, var(--blanco-roto) 100%);
}

.hero-grid{
  display:flex;
  flex-direction:column;
  gap: 40px;
}

.hero-text h1{
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  margin-bottom: 18px;
}

.hero-subtitle{
  font-size: 1.05rem;
  color: var(--gris-grafito);
  margin-bottom: 28px;
  max-width: 560px;
}

.hero-buttons{
  display:flex;
  flex-wrap:wrap;
  gap: 16px;
}

.hero-panel{
  display:flex;
  justify-content:center;
}

.panel-card{
  background: var(--blanco);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 420px;
  padding: 24px;
}

.panel-header{
  display:flex;
  align-items:center;
  gap:10px;
  font-family: var(--font-titulos);
  font-weight:600;
  color: var(--verde-petroleo);
  margin-bottom: 18px;
  font-size: 1rem;
}

.panel-dot{
  width:10px;
  height:10px;
  border-radius:50%;
  background: var(--ambar);
  display:inline-block;
}

.panel-list{
  display:flex;
  flex-direction:column;
  gap: 12px;
}

.panel-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 12px 16px;
  border-radius: 10px;
  font-weight:500;
  font-size:0.92rem;
}

.status-ok{ background: var(--verde-claro); color: var(--verde-petroleo); }
.status-warning{ background: #FBE9D2; color: var(--ambar); }
.status-pending{ background: #F0F0F0; color: var(--gris-grafito); }
.status-ready{ background: var(--verde-claro); color: var(--verde-petroleo); }

.status-badge{
  background: rgba(255,255,255,0.7);
  border-radius: 50px;
  padding: 2px 12px;
  font-weight:700;
}

/* ===== Secciones generales ===== */
.section{
  padding: 70px 0;
}

.section-alt{
  background: var(--verde-claro);
}

.section-title{
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  margin-bottom: 22px;
  max-width: 800px;
}

.section-intro{
  max-width: 700px;
  font-size: 1.05rem;
  margin-bottom: 28px;
}

/* ===== Problema ===== */
.problem-list{
  display:flex;
  flex-direction:column;
  gap: 14px;
  margin-bottom: 32px;
}

.problem-list li{
  position:relative;
  padding-left: 28px;
  font-size: 1.02rem;
}

.problem-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:8px;
  width:12px;
  height:12px;
  border-radius:50%;
  background: var(--ambar);
}

.problem-quote{
  font-family: var(--font-titulos);
  font-weight:600;
  font-size: 1.15rem;
  color: var(--verde-petroleo);
  border-left: 4px solid var(--ambar);
  padding-left: 18px;
}

/* ===== Solucion ===== */
.solucion-grid{
  display:flex;
  flex-direction:column;
  gap: 32px;
}

.solucion-grid p{
  font-size: 1.05rem;
}

.credentials ul{
  display:flex;
  flex-direction:column;
  gap: 12px;
}

.credentials li{
  background: var(--blanco);
  padding: 14px 18px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  font-weight:500;
  border-left: 4px solid var(--verde-petroleo);
}

/* ===== Cards beneficios ===== */
.cards-grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.card{
  background: var(--blanco);
  padding: 28px 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover{
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.card h3{
  font-size: 1.15rem;
  margin-bottom: 10px;
}

/* ===== Qué incluye ===== */
.incluye-grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.incluye-card{
  background: var(--blanco);
  padding: 28px 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border-top: 4px solid var(--verde-petroleo);
  transition: transform var(--transition), box-shadow var(--transition);
}

.incluye-card:hover{
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.incluye-card h3{
  font-size: 1.15rem;
  margin-bottom: 10px;
}

/* ===== Contexto legal ===== */
.legal-context p{
  font-size: 1.05rem;
  margin-bottom: 18px;
  max-width: 760px;
}

.legal-highlight{
  font-weight:600;
  color: var(--verde-petroleo);
  font-family: var(--font-titulos);
}

/* ===== Precio ===== */
.price-grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 32px;
}

.price-card{
  background: var(--blanco);
  padding: 32px 26px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.price-card:hover{
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.price-card-featured{
  border: 2px solid var(--verde-petroleo);
  position:relative;
}

.price-card h3{
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.price-amount{
  font-family: var(--font-titulos);
  font-size: 1.6rem;
  font-weight:700;
  color: var(--ambar);
  margin-bottom: 18px;
}

.price-card ul{
  display:flex;
  flex-direction:column;
  gap: 10px;
}

.price-card ul li{
  position:relative;
  padding-left: 22px;
  font-size: 0.95rem;
}

.price-card ul li::before{
  content:"✓";
  position:absolute;
  left:0;
  color: var(--verde-petroleo);
  font-weight:700;
}

.price-note{
  font-size: 0.92rem;
  color: var(--gris-grafito);
  font-style: italic;
  margin-bottom: 28px;
  max-width: 700px;
}

.price-cta{
  text-align:center;
}

/* ===== FAQ ===== */
.faq-list{
  display:flex;
  flex-direction:column;
  gap: 14px;
}

.faq-item{
  background: var(--blanco);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 22px;
  transition: box-shadow var(--transition);
}

.faq-item:hover{
  box-shadow: var(--shadow-hover);
}

.faq-item summary{
  font-weight:600;
  cursor:pointer;
  font-size: 1.02rem;
  color: var(--verde-petroleo);
  list-style: none;
  position:relative;
  padding-right: 24px;
}

.faq-item summary::-webkit-details-marker{
  display:none;
}

.faq-item summary::after{
  content:"+";
  position:absolute;
  right:0;
  top:0;
  font-size: 1.3rem;
  color: var(--ambar);
  transition: transform var(--transition);
}

.faq-item[open] summary::after{
  transform: rotate(45deg);
}

.faq-item p{
  margin-top: 14px;
  font-size: 0.98rem;
}

/* ===== CTA final ===== */
.cta-final{
  background: var(--verde-petroleo);
  text-align:center;
}

.cta-final .section-title{
  color: var(--blanco);
  margin: 0 auto 18px;
}

.cta-final p{
  color: var(--verde-claro);
  max-width: 640px;
  margin: 0 auto 28px;
  font-size: 1.05rem;
}

.cta-final .hero-buttons{
  justify-content:center;
  margin-bottom: 22px;
}

.cta-final .btn-secondary{
  color: var(--blanco);
  border-color: var(--blanco);
}

.cta-final .btn-secondary:hover{
  background: rgba(255,255,255,0.12);
}

.trust-note{
  color: var(--blanco) !important;
  font-size: 0.9rem !important;
  opacity: 0.85;
}

/* ===== Footer ===== */
.site-footer{
  background: var(--gris-grafito);
  color: var(--blanco-roto);
  padding: 50px 0 24px;
}

.footer-grid{
  display:flex;
  flex-direction:column;
  gap: 28px;
  margin-bottom: 28px;
}

.footer-brand{
  font-family: var(--font-titulos);
  font-weight:700;
  font-size: 1.15rem;
  color: var(--blanco);
  margin-bottom: 6px;
}

.footer-contact p{
  margin-bottom: 8px;
}

.footer-contact a:hover{
  color: var(--ambar);
}

.footer-btn{
  margin-top: 12px;
}

.footer-disclaimer{
  font-size: 0.82rem;
  opacity: 0.7;
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 18px;
}

/* ===== Animaciones scroll ===== */
.fade-in{
  opacity:0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible{
  opacity:1;
  transform: translateY(0);
}

/* ===== Tablet ===== */
@media (min-width: 768px){
  .logo span{ display:inline; font-weight:400; color: var(--gris-grafito); }

  .hero-buttons{ flex-wrap:nowrap; }

  .cards-grid{ grid-template-columns: repeat(2, 1fr); }

  .incluye-grid{ grid-template-columns: repeat(2, 1fr); }

  .price-grid{ grid-template-columns: repeat(3, 1fr); }

  .footer-grid{ flex-direction:row; justify-content:space-between; align-items:flex-start; }
}

/* ===== Escritorio ===== */
@media (min-width: 1024px){
  .nav-toggle{ display:none; }

  .main-nav{
    position:static;
    background:none;
    max-height:none;
    overflow:visible;
    box-shadow:none;
    width:100%;
  }

  .main-nav ul{
    flex-direction:row;
    align-items:center;
    gap: 24px;
    padding:0;
  }

  .main-nav ul li a{
    border-bottom:none;
    padding: 8px 0;
    position:relative;
    white-space: nowrap;
  }

  .main-nav ul li a::after{
    content:"";
    position:absolute;
    bottom:0;
    left:0;
    width:0;
    height:2px;
    background: var(--verde-petroleo);
    transition: width var(--transition);
  }

  .main-nav ul li a:hover::after{
    width:100%;
  }

  .header-inner{
    flex-wrap:nowrap;
  }

  .main-nav{
    display:flex;
    align-items:center;
    justify-content:flex-end;
    gap: 28px;
    flex:1;
    margin-left: 30px;
  }

  .nav-cta{
    margin:0;
  }

  .hero{ padding-top: 150px; }

  .hero-grid{
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
  }

  .hero-text{ flex: 1; max-width: 560px; }

  .hero-panel{ flex: 1; justify-content:flex-end; }

  .solucion-grid{
    flex-direction:row;
    align-items:flex-start;
  }

  .solucion-grid > div{ flex:1; }

  .cards-grid{ grid-template-columns: repeat(3, 1fr); }
}