/* =========================================================
   ECP — Design tokens
   Paleta tomada del logo: verde eco + dorado + negro
   ========================================================= */
:root{
  --c-bg-dark: #1f2329;
  --c-bg-dark-2: #282f38;
  --c-bg-card-dark: rgba(31, 35, 41, 0.85);
  --c-text-light: #f3f4f1;
  --c-text-muted: rgba(243,244,241,.75);
  --c-text-dark: #1f2329;
  --c-gold: #F5B942;
  --c-gold-light: #f7c766;

  --radius: 14px;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
  --shadow-soft: 0 10px 22px rgba(0,0,0,.18);
  --ease: cubic-bezier(.2,.8,.2,1);
  --max-width: 1180px;
}

*{ box-sizing: border-box; }
html, body{ margin:0; padding:0; overflow-x:hidden; }
body{
  font-family: "Montserrat", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--c-text-light);
  background: var(--c-bg-dark);
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; }
.container{ max-width: var(--max-width); margin:0 auto; padding: 0 24px; }

h1,h2,h3{ font-weight: 800; letter-spacing: -0.02em; line-height: 1.1; margin: 0 0 16px; }
p{ line-height: 1.6; margin: 0 0 12px; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding: 14px 28px;
  border-radius: 999px;
  background: var(--c-gold);
  color: var(--c-text-dark);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .04em;
  text-transform: uppercase;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease), filter 220ms var(--ease);
  will-change: transform;
}
.btn:hover{ transform: translateY(-2px); box-shadow: var(--shadow-soft); filter: brightness(1.05); }
.btn--outline{
  background: transparent;
  color: var(--c-text-light);
  border: 1px solid rgba(255,255,255,.35);
}

/* ---------- Header ---------- */
.site-header{
  position: fixed;
  top:0; left:0; right:0;
  z-index: 1000;
  padding: 20px 0;
  background: transparent;
  transition: padding 220ms var(--ease), background 280ms var(--ease), box-shadow 280ms var(--ease), transform 320ms var(--ease);
  transform: translateY(0);
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.site-header.is-scrolled{
  padding: 12px 0;
  background: rgba(20,23,26,.88);
  backdrop-filter: blur(10px) saturate(140%);
  box-shadow: 0 6px 20px rgba(0,0,0,.3);
}
.site-header.is-hidden{
  transform: translateY(-110%);
}
.brand{ display:flex; align-items:center; gap:10px; text-decoration:none; }
.brand img{ height: 68px; width:auto; transition: height 220ms var(--ease); }
.site-header.is-scrolled .brand img{ height: 52px; }

@media (max-width: 600px){
  .brand img{ height: 50px; }
  .site-header.is-scrolled .brand img{ height: 42px; }
}

.main-nav{ display:flex; align-items:center; gap:28px; }
.main-nav a{
  font-size: 14px;
  font-weight: 650;
  text-decoration:none;
  color: rgba(255,255,255,.88);
  position:relative;
  padding-bottom: 4px;
  background-image: linear-gradient(var(--c-gold-light), var(--c-gold-light));
  background-size: 0% 2px;
  background-repeat:no-repeat;
  background-position: 0 100%;
  transition: background-size 220ms var(--ease), color 220ms var(--ease);
}
.main-nav a:hover, .main-nav a.is-active{
  color:#fff;
  background-size: 100% 2px;
}
.nav-toggle{ display:none; }

@media (max-width: 860px){
  .main-nav{
    position:fixed; inset:0; top:0;
    flex-direction:column;
    justify-content:center;
    gap: 24px;
    background: rgba(15,17,19,.98);
    transform: translateX(100%);
    transition: transform 280ms var(--ease);
  }
  .main-nav.is-open{ transform: translateX(0); }
  .main-nav a{ font-size: 20px; }
  .nav-toggle{
    display:flex;
    width:42px; height:42px;
    align-items:center; justify-content:center;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,.25);
    background: transparent;
    color: var(--c-text-light);
    font-size: 20px;
    cursor:pointer;
    z-index: 1001;
  }
}

/* ---------- Sections (shared) ---------- */
.page-section{
  padding: clamp(64px, 9vw, 130px) 0;
  position: relative;
}
.section--dark{ background: var(--c-bg-dark); color: var(--c-text-light); }
.section--light{ background: #f3f1ec; color: var(--c-text-dark); }

.section--bgimage{
  background-size: cover;
  background-position: center;
  background-attachment: scroll;
  position: relative;
}
.section--bgimage::before{
  content:"";
  position:absolute; inset:0;
  background: rgba(10,12,13,.55);
}
.section--bgimage .container{ position: relative; z-index: 1; }

.section-card{
  max-width: 640px;
  background: var(--c-bg-card-dark);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(28px, 4vw, 48px);
}
.section-card .eyebrow{
  color: var(--c-gold-light);
  font-weight: 800;
  font-size: 32px;
}
.section-card p{ color: var(--c-text-muted); }
.section-card--center{ margin: 0 auto; text-align:center; }

/* ---------- Hero ---------- */
.hero{
  min-height: 100vh;
  display:flex;
  align-items:center;
}
.hero .container{
  /* Ancla el panel a la izquierda en vez de centrarlo dentro del max-width */
  margin-left: 0;
  margin-right: auto;
}
.hero .section-card{
  margin-top: 90px;
  max-width: 760px;
  width: min(100%, 760px);
  background: rgba(24, 27, 31, 0.5);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 20px;
  box-shadow: 0 30px 70px rgba(0,0,0,.45);
  padding: clamp(32px, 5vw, 60px);
}
.hero-title{
  display: flex;
  flex-direction: column;
  margin: 0 0 22px;
}
.hero-title__line{
  font-family: "Montserrat", system-ui, sans-serif;
  font-weight: 700;
  font-style: normal;
  font-size: clamp(30px, 4.6vw, 68px);
  line-height: 1.015; /* ~69px a 68px, mismo ratio en cualquier tamano */
  letter-spacing: -0.01em;
}
.hero-title .text-accent{ color: var(--c-gold); }
.hero-title .text-white{ color: #fff; }
.hero .section-card p{ font-size: 16px; max-width: 540px; color: var(--c-text-muted); }

@media (max-width: 600px){
  .hero .section-card{ margin-top: 110px; }
  .hero-title__line{ font-size: clamp(26px, 7.5vw, 38px); }
}

/* ---------- Video-ready section ---------- */
.video-section{
  position: relative;
  min-height: 70vh;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
  background: var(--c-bg-dark-2);
}
.video-section__media{
  position:absolute; inset:0;
  width:100%; height:100%;
  object-fit: cover;
}
.video-section__media[data-empty="true"]{
  /* Sin video todavia: usamos imagen poster como fondo temporal */
  background-size: cover;
  background-position: center;
}
.video-section::after{
  content:"";
  position:absolute; inset:0;
  background: rgba(10,12,13,.6);
}
.video-section .container{ position: relative; z-index: 1; text-align:center; }
.video-section h2{ font-size: clamp(26px, 4vw, 44px); max-width: 760px; margin: 0 auto 28px; }

/* ---------- Quick facts ---------- */
.facts{ max-width: 1100px; margin: 0 auto; }
.facts__title{ text-align:center; margin-bottom: 36px; }
.facts__grid{
  display:grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 18px;
  margin-bottom: 48px;
}
@media (max-width: 1024px){ .facts__grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 600px){ .facts__grid{ grid-template-columns: 1fr; } }

.fact-card{
  background:#fff;
  border:1px solid rgba(0,0,0,.08);
  border-radius: 16px;
  padding: 22px;
  box-shadow: 0 8px 22px rgba(0,0,0,.06);
}
.fact-card--span2{ grid-column: span 2; }
@media (max-width:600px){ .fact-card--span2{ grid-column:auto; } }
.fact-card__label{ font-size:14px; font-weight:700; margin-bottom:8px; color: var(--c-text-dark); }
.fact-card__value{ font-size:14px; line-height:1.6; }
.fact-card__value--big{ font-size:34px; font-weight:800; letter-spacing:-.02em; }

.chart-wrap{
  max-width: 900px;
  margin: 0 auto;
  background:#fff;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 8px 22px rgba(0,0,0,.06);
}
.chart-wrap__head{
  display:flex; align-items:baseline; justify-content:space-between;
  gap:16px; margin-bottom:14px; flex-wrap:wrap;
}
.chart-wrap__head h3{ font-size:18px; margin:0; color: var(--c-text-dark); }
.chart-canvas-holder{ position:relative; width:100%; height:300px; }
.chart-canvas-holder canvas{ width:100% !important; height:100% !important; }

/* ---------- Footer ---------- */
.site-footer{
  background:#0d0f10;
  color: rgba(255,255,255,.75);
  padding: 64px 0 28px;
  font-size: 14px;
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
}
.footer-col h4{
  color:#fff;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
  margin: 0 0 18px;
}
.footer-col ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:12px; }
.footer-col ul a{
  text-decoration:none;
  color: rgba(255,255,255,.75);
  transition: color 200ms var(--ease);
}
.footer-col ul a:hover{ color: var(--c-gold); }
.footer-contact a{ word-break: break-word; }

.footer-logo{ height: 56px; margin-bottom: 18px; }
.footer-tagline{ max-width: 320px; color: rgba(255,255,255,.65); margin-bottom: 20px; }
.footer-social{ display:flex; gap:12px; flex-wrap: wrap; }
.footer-social a{
  display:flex; align-items:center; justify-content:center;
  width:38px; height:38px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.25);
  color:#fff;
  text-decoration:none;
  font-size:12px;
  font-weight:700;
  letter-spacing:.02em;
  transition: border-color 200ms var(--ease), color 200ms var(--ease), background 200ms var(--ease);
}
.footer-social a:hover{
  color: var(--c-text-dark);
  background: var(--c-gold);
  border-color: var(--c-gold);
}

.footer-bottom{
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,.1);
  text-align:center;
  font-size: 13px;
}
.footer-bottom p{ margin: 0 0 6px; }
.footer-bottom__sub{ opacity:.6; font-size: 12px; }

@media (max-width: 900px){
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .footer-col--brand{ grid-column: 1 / -1; margin-bottom: 12px; }
}
@media (max-width: 560px){
  .footer-grid{ grid-template-columns: 1fr; gap: 28px; }
  .footer-tagline{ max-width: 100%; }
}

/* ---------- Back to top ---------- */
#backToTop{
  position: fixed;
  right: 20px; bottom: 20px;
  z-index: 999;
  width: 44px; height: 44px;
  border-radius: 999px;
  border: none;
  background: var(--c-gold);
  color: var(--c-text-dark);
  font-size: 18px;
  cursor:pointer;
  box-shadow: var(--shadow-soft);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 200ms var(--ease), transform 200ms var(--ease);
}
#backToTop.is-visible{ opacity:1; pointer-events:auto; transform:translateY(0); }

/* ---------- Scroll reveal ---------- */
.reveal{
  opacity:0;
  transform: translateY(16px);
  transition: opacity 560ms var(--ease), transform 560ms var(--ease);
}
.reveal.in-view{ opacity:1; transform:translateY(0); }

@media (prefers-reduced-motion: reduce){
  *{ transition:none !important; scroll-behavior:auto !important; }
  .reveal{ opacity:1 !important; transform:none !important; }
}