:root {
  --yellow: #F9CF4A;
  --yellow-soft: #FDF3D3;
  --ink: #111111;
  --ink-2: #444444;
  --line: #E7E2D6;
  --bg: #FFFFFF;
  --radius: 14px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  font-family: Montserrat, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  font-weight: 500;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; }
a { color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }
.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 16px; }

/* Logo: «Renew» grande + «HOUSE» pequeño y espaciado */
.logo { display: inline-flex; flex-direction: column; align-items: flex-end; text-decoration: none; line-height: 1; }
.logo-main { font-weight: 900; font-size: 30px; letter-spacing: -1.5px; }
.logo-sub { font-weight: 700; font-size: 9.5px; letter-spacing: 6.4px; margin-right: -6.4px; margin-top: 1px; color: #1d2733; }
.logo-small .logo-main { font-size: 24px; }
.logo-small .logo-sub { font-size: 7.6px; letter-spacing: 5.1px; margin-right: -5.1px; }

/* Cabecera */
.site-header { position: sticky; top: 0; z-index: 10; background: var(--yellow); box-shadow: 0 1px 0 rgba(0,0,0,.08); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 64px; flex-wrap: wrap; }
.menu-toggle { position: absolute; opacity: 0; pointer-events: none; }
.menu-btn { width: 44px; height: 44px; display: grid; place-items: center; cursor: pointer; }
.menu-btn span, .menu-btn span::before, .menu-btn span::after {
  display: block; width: 24px; height: 3px; background: var(--ink); border-radius: 2px; position: relative; content: "";
}
.menu-btn span::before { position: absolute; top: -8px; }
.menu-btn span::after { position: absolute; top: 8px; }
.menu { display: none; width: 100%; flex-direction: column; gap: 4px; padding: 8px 0 16px; }
.menu a { text-decoration: none; font-weight: 700; padding: 10px 0; }
.menu a.btn { text-align: center; padding: 12px 20px; }
.menu-toggle:checked ~ .menu { display: flex; }
.menu-toggle:focus-visible + .menu-btn { outline: 2px solid var(--ink); border-radius: 6px; }

/* Botones */
.btn { display: inline-block; padding: 14px 24px; border-radius: 999px; font-weight: 700; text-decoration: none; border: 2px solid var(--ink); transition: transform .15s; }
.btn:hover { transform: translateY(-1px); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-outline { background: transparent; color: var(--ink); }

/* Hero */
.hero { background: var(--yellow); padding: 48px 0 64px; }
.eyebrow { font-weight: 700; text-transform: uppercase; letter-spacing: 4px; font-size: 12px; margin: 0 0 12px; color: #1d2733; }
.hero h1 { font-weight: 900; font-size: clamp(32px, 8vw, 60px); letter-spacing: -1px; max-width: 14ch; }
.lead { font-size: 18px; max-width: 56ch; color: #222; margin: 0 0 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-inner { display: grid; gap: 36px; align-items: center; }
.hero-img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 20px; box-shadow: 0 18px 40px rgba(0,0,0,.18); display: block; }

/* Secciones */
.section { padding: 64px 0; }
.section h2 { font-weight: 900; font-size: clamp(26px, 5vw, 38px); letter-spacing: -.5px; }
.section-lead { color: var(--ink-2); margin: 0 0 32px; max-width: 60ch; }
.section-yellow { background: var(--yellow-soft); }
.section-dark { background: var(--ink); color: #fff; }
.section-dark .eyebrow { color: var(--yellow); }
.section-dark .section-lead { color: #ccc; }
.solar-inner { display: grid; gap: 36px; align-items: center; }
.solar-img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 20px; display: block; }
.solar-list { display: grid; gap: 16px; margin: 0 0 32px; }
.solar-list li { display: flex; flex-direction: column; gap: 4px; padding-left: 16px; border-left: 4px solid var(--yellow); }
.solar-list strong { font-size: 17px; }
.solar-list span { color: #ccc; font-size: 15px; }
.btn-yellow { background: var(--yellow); color: var(--ink); border-color: var(--yellow); }
.grid { display: grid; gap: 16px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.services .card { border-top: 5px solid var(--yellow); padding: 0 0 22px; overflow: hidden; }
.services .card img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; margin-bottom: 18px; background: var(--yellow-soft); }
.services .card h3, .services .card p { padding: 0 22px; }
.services h3 { font-size: 18px; font-weight: 700; }
.services p { margin: 0; color: var(--ink-2); font-size: 15px; }

.reasons { margin-top: 24px; }
.reasons li { display: flex; flex-direction: column; gap: 6px; padding-left: 18px; border-left: 4px solid var(--yellow); }
.reasons strong { font-size: 18px; }
.reasons span { color: var(--ink-2); }

.contact-card { display: flex; flex-direction: column; gap: 4px; text-decoration: none; transition: border-color .15s, transform .15s; }
.contact-card:hover { border-color: var(--ink); transform: translateY(-2px); }
.contact-label { font-size: 12px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; color: var(--ink-2); }
.contact-value { font-size: 20px; font-weight: 700; word-break: break-word; }
.note { margin-top: 24px; color: var(--ink-2); font-size: 14px; }

/* Pie */
.site-footer { background: var(--ink); color: #ddd; padding: 32px 0; font-size: 14px; }
.site-footer .logo { color: var(--yellow); }
.site-footer .logo-sub { color: var(--yellow); }
.footer-inner { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }
.footer-inner nav { display: flex; gap: 20px; }
.footer-inner p { margin: 0; color: #999; }

/* Páginas legales */
.legal { padding: 48px 0 64px; max-width: 760px; }
.legal h1 { font-weight: 900; font-size: 32px; }
.legal h2 { font-size: 20px; margin-top: 28px; }

/* Tableta y escritorio */
@media (min-width: 640px) {
  .services, .contact { grid-template-columns: repeat(2, 1fr); }
  .reasons { grid-template-columns: repeat(2, 1fr); gap: 28px; }
}
@media (min-width: 900px) {
  .menu-btn { display: none; }
  .menu { display: flex; flex-direction: row; width: auto; align-items: center; gap: 28px; padding: 0; }
  .menu a { padding: 0; }
  .menu a.btn { padding: 10px 22px; }
  .logo-main { font-size: 36px; }
  .logo-sub { font-size: 11.5px; letter-spacing: 7.6px; margin-right: -7.6px; }
  .hero { padding: 80px 0 96px; }
  .hero-inner { grid-template-columns: 1.1fr 1fr; gap: 48px; }
  .solar-inner { grid-template-columns: 1fr 1.1fr; gap: 56px; }
  .solar-list { grid-template-columns: 1fr 1fr; gap: 20px 28px; }
  .services { grid-template-columns: repeat(3, 1fr); }
  .reasons, .contact { grid-template-columns: repeat(4, 1fr); }
  .contact { grid-template-columns: repeat(3, 1fr); }
  .section { padding: 88px 0; }
  .footer-inner { flex-direction: row; justify-content: space-between; align-items: center; }
}