:root {
  --bg: #ffffff;
  --bg-alt: #f4f7fb;
  --ink: #0d1b2a;
  --muted: #5a6b7d;
  --blue: #1565d8;
  --green: #12b76a;
  --dark: #0b1322;
  --line: #e3e9f0;
  --grad: linear-gradient(90deg, var(--blue), #4e93ff);
  --grad2: linear-gradient(90deg, var(--green), #34d399);
  --shadow: 0 18px 45px rgba(13, 27, 42, .10);
  --radius: 16px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--ink);
  line-height: 1.6;
  background: var(--bg);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { width: min(1120px, 92%); margin: 0 auto; }

/* NAV */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 16px 0;
  transition: background .3s, box-shadow .3s, padding .3s;
}
.nav.scrolled {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0,0,0,.06);
  padding: 10px 0;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 11px;
  background: var(--grad);
  color: #fff; font-weight: 800; font-size: 20px;
  display: grid; place-items: center;
}
.brand-text { font-weight: 800; font-size: 20px; letter-spacing: -.02em; }
.brand-text span { color: var(--green); }
.brand.light .brand-text { color: #fff; }

.nav-links { display: flex; gap: 28px; font-weight: 500; font-size: 15px; }
.nav-links a { opacity: .85; transition: opacity .2s, color .2s; }
.nav-links a:hover { opacity: 1; color: var(--blue); }
.nav:not(.scrolled) .nav-links a { color: #fff; }
.nav:not(.scrolled) .brand-text { color: #fff; }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 3px; background: var(--ink); margin: 4px 0; border-radius: 3px; transition: .3s; }

/* BUTTONS */
.btn {
  display: inline-block; padding: 12px 24px; border-radius: 12px;
  font-weight: 600; font-size: 15px; border: none; cursor: pointer;
  transition: transform .15s, box-shadow .15s, background .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn-solid { background: var(--grad); color: #fff; box-shadow: 0 8px 20px rgba(21,101,216,.30); }
.btn-solid:hover { box-shadow: 0 12px 26px rgba(21,101,216,.40); }
.btn-ghost { background: rgba(255,255,255,.15); color: #fff; border: 1px solid rgba(255,255,255,.4); }
.btn-ghost:hover { background: rgba(255,255,255,.25); }
.btn-lg { padding: 15px 32px; font-size: 16px; }
.btn-block { width: 100%; }

/* HERO */
.hero { position: relative; color: #fff; padding: 150px 0 90px; overflow: hidden; }
.hero-bg {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 60% at 85% 20%, rgba(18,183,106,.45), transparent 60%),
    radial-gradient(50% 60% at 10% 85%, rgba(78,147,255,.45), transparent 60%),
    linear-gradient(135deg, #0b1322 0%, #12233f 55%, #0d1b2a 100%);
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    radial-gradient(rgba(255,255,255,.12) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: .3; mask-image: linear-gradient(to bottom, #000, transparent 80%);
}
.hero-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center; }
.badge {
  display: inline-block; padding: 7px 14px; border-radius: 999px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2);
  font-size: 13px; font-weight: 600; letter-spacing: .03em; margin-bottom: 20px;
}
.hero h1 { font-size: clamp(34px, 4.5vw, 56px); font-weight: 800; line-height: 1.12; letter-spacing: -.02em; }
.hero .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero .grad2 { background: linear-gradient(90deg,#34d399,#7ef0b8); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero p { color: #c2d0e0; font-size: 18px; max-width: 500px; margin: 22px 0 30px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 46px; }
.hero-stats { display: flex; gap: 40px; flex-wrap: wrap; border-top: 1px solid rgba(255,255,255,.15); padding-top: 24px; }
.hero-stats strong { display: block; font-size: 26px; font-weight: 800; }
.hero-stats span { color: #b6c6d8; font-size: 13px; }

/* HERO ART */
.hero-art { position: relative; min-height: 360px; }
.card-chart {
  background: #fff; color: var(--ink); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow); max-width: 360px;
  animation: float 6s ease-in-out infinite;
}
.chart-title { font-weight: 700; font-size: 15px; color: var(--muted); margin-bottom: 12px; }
.chart-svg polyline { stroke: var(--blue); stroke-width: 3.5; stroke-linecap: round; }
.chart-svg .fill { fill: rgba(21,101,216,.14); }
.chart-badge {
  position: absolute; top: 48px; right: 34px;
  background: var(--grad2); color: #064e2e; font-weight: 800; font-size: 15px;
  padding: 6px 12px; border-radius: 999px;
}
.card-solar {
  position: absolute; bottom: 10px; left: -20px;
  background: #fff; color: var(--ink); border-radius: var(--radius);
  padding: 16px 20px; display: flex; gap: 14px; align-items: center;
  box-shadow: var(--shadow); animation: float 6s ease-in-out 1.5s infinite;
}
.solar-bolt {
  width: 44px; height: 44px; border-radius: 12px; font-size: 22px;
  background: linear-gradient(135deg,#ffe259,#ffa751);
  display: grid; place-items: center;
}
.card-solar strong { display: block; font-size: 15px; }
.card-solar span { font-size: 13px; color: var(--muted); }

@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-14px)} }

/* SECTIONS */
.section { padding: 90px 0; }
.section.alt { background: var(--bg-alt); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 52px; }
.kicker {
  display: inline-block; color: var(--green); font-weight: 700; font-size: 13px;
  letter-spacing: .1em; text-transform: uppercase; margin-bottom: 12px;
}
.section-head h2 { font-size: clamp(26px, 3.4vw, 40px); font-weight: 800; letter-spacing: -.02em; }
.section-head p { color: var(--muted); margin-top: 14px; font-size: 17px; }

.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: transform .2s, box-shadow .2s; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.service .icon {
  width: 54px; height: 54px; border-radius: 14px; font-size: 26px;
  background: #eef4ff; display: grid; place-items: center; margin-bottom: 18px;
}
.service h3 { font-size: 19px; margin-bottom: 8px; }
.service p { color: var(--muted); font-size: 15px; margin-bottom: 16px; }
.link { color: var(--blue); font-weight: 600; font-size: 14px; }
.link:hover { text-decoration: underline; }

/* SPLIT / ENERGÍA */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split-media { position: relative; }
.media-img { border-radius: var(--radius); box-shadow: var(--shadow); aspect-ratio: 4/3; object-fit: cover; }
.split-copy h2 { font-size: clamp(26px, 3.2vw, 38px); margin: 6px 0 18px; font-weight: 800; letter-spacing: -.02em; }
.split-copy p { color: var(--muted); font-size: 17px; margin-bottom: 24px; }
.check-list li {
  position: relative; padding-left: 30px; margin-bottom: 12px; font-size: 16px; font-weight: 500;
}
.check-list li::before { content: "✓"; position: absolute; left: 0; width: 20px; height: 20px; border-radius: 6px; background: var(--grad2); color: #064e2e; font-weight: 800; font-size: 12px; display: grid; place-items: center; }
.split-copy .btn { margin-top: 10px; }

/* LOGOS */
.logos { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.logo {
  border: 1px solid var(--line); border-radius: 14px; padding: 28px 12px;
  display: grid; place-items: center; background: #fff;
  transition: border-color .2s, background .2s;
}
.logo:hover { border-color: var(--blue); background: #f6faff; }
.logo-name {
  font-weight: 800; font-size: 18px; letter-spacing: -.01em;
  background: linear-gradient(135deg, var(--blue), var(--green));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.logos-note { text-align: center; color: var(--muted); margin-top: 28px; font-size: 15px; }
.logos-note a { color: var(--blue); font-weight: 600; }

/* CONTACTO */
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 50px; align-items: start; }
.info-item { display: flex; gap: 18px; margin-bottom: 26px; }
.info-item .icon {
  width: 48px; height: 48px; border-radius: 13px; font-size: 22px;
  background: #eef4ff; display: grid; place-items: center; flex-shrink: 0;
}
.info-item h4 { font-size: 16px; margin-bottom: 2px; }
.info-item p { color: var(--muted); font-size: 15px; }
.info-item a:hover { color: var(--blue); }
.socials { display: flex; gap: 12px; margin-top: 20px; }
.social {
  width: 44px; height: 44px; border-radius: 12px; font-weight: 700; font-size: 16px;
  border: 1px solid var(--line); display: grid; place-items: center;
  transition: all .2s;
}
.social:hover { background: var(--grad); color: #fff; border-color: transparent; transform: translateY(-3px); }

.contact-form {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; box-shadow: var(--shadow); display: grid; gap: 16px;
}
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; padding: 14px 16px; border: 1px solid var(--line); border-radius: 12px;
  font: inherit; font-size: 15px; background: #fbfcfe; color: var(--ink);
  transition: border-color .2s;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  outline: none; border-color: var(--blue);
}
.contact-form textarea { resize: vertical; }
.form-msg { text-align: center; font-size: 14px; font-weight: 600; min-height: 20px; color: var(--green); }

/* FOOTER */
.footer { background: var(--dark); color: #c2d0e0; padding: 70px 0 0; }
.footer-inner { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; padding-bottom: 40px; }
.footer-tag { margin-top: 14px; color: #8fa1b5; font-size: 15px; max-width: 260px; }
.footer-links { display: flex; gap: 70px; flex-wrap: wrap; }
.footer-links h5 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer-links a { display: block; margin-bottom: 10px; font-size: 14px; color: #8fa1b5; transition: color .2s; }
.footer-links a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 22px 0; font-size: 13px; color: #8fa1b5; }

/* MOBILE */
@media (max-width: 900px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: #fff; padding: 12px 6%;
    box-shadow: 0 12px 30px rgba(0,0,0,.08);
  }
  .nav-links a { display: block; padding: 14px 4px; color: var(--ink) !important; border-bottom: 1px solid var(--line); }
  .hero { padding-top: 120px; }
  .hero-inner, .split, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .grid { grid-template-columns: repeat(2, 1fr); }
  .logos { grid-template-columns: repeat(3, 1fr); }
  .card-solar { left: 10px; }
}
@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
  .logos { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { gap: 20px; }
  .footer-links { gap: 30px; }
}