/* =========================================================
   SOLARLIFE — Design system
   Tokens extraidos del sitio en vivo (solarlifesystem.com)
   ========================================================= */
:root{
  color-scheme: light;
  --black:#000000;
  --gold:#FEC300;
  --gold-dark:#D7A500;
  --lime:#B0D800;
  --teal:#008B98;
  --teal-dark:#00646E;
  --heading-gray:#777777;
  --body-gray:#666666;
  --slate:#44627C;
  --light-overlay:rgba(239,239,239,.5);
  --white:#ffffff;
  --font:'Roboto',Helvetica,Arial,Lucida,sans-serif;
  --font-alt:'Lato',Helvetica,Arial,Lucida,sans-serif;
  --radius-pill:100px;
  --container:1200px;
  --header-h:70px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  color:var(--body-gray);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4,h5,h6{font-family:var(--font);font-weight:700;margin:0 0 16px;color:var(--gold);}
h1{font-size:44px;line-height:1.15;}
h2{font-size:38.4px;line-height:1.2;}
h3{font-size:25.6px;line-height:1.25;}
h4{font-size:20px;}
p{margin:0 0 16px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:80px 0;}
.section-sm{padding:48px 0;}
.text-center{text-align:center;}
.eyebrow{color:var(--lime);font-weight:700;letter-spacing:.5px;text-transform:uppercase;font-size:15px;margin-bottom:6px;display:block;}

/* ---------- Blog article body ---------- */
.blog-body{max-width:760px;margin:0 auto;}
.blog-body>p:first-of-type{font-size:19px;color:var(--slate);}
.blog-body h2{color:var(--black);font-size:26px;line-height:1.3;margin:44px 0 16px;padding-top:20px;border-top:2px solid var(--gold);}
.blog-body h2:first-child{margin-top:0;padding-top:0;border-top:none;}
.blog-body h3{color:var(--black);font-size:20px;line-height:1.3;margin:28px 0 10px;}
.blog-body p{font-size:17px;}
.blog-body ul{list-style:none;margin:0 0 20px;padding:0;}
.blog-body ul li{position:relative;padding-left:26px;margin-bottom:10px;font-size:17px;}
.blog-body ul li::before{content:'';position:absolute;left:2px;top:9px;width:8px;height:8px;border-radius:50%;background:var(--gold);}
.blog-body a{color:var(--teal);font-weight:700;border-bottom:1px solid rgba(0,139,152,.35);}
.blog-body a:hover{border-bottom-color:var(--teal);}
.blog-body strong{color:var(--black);}
@media(max-width:700px){.blog-body h2{font-size:22px;}}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  border-radius:var(--radius-pill);
  font-family:var(--font);font-weight:700;font-size:15px;
  padding:13px 32px;border:none;cursor:pointer;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.15);}
.btn-solid{background:var(--gold);color:var(--teal);text-transform:uppercase;}
.btn-outline{background:transparent;color:var(--lime);border:2px solid var(--lime);}
.btn-white{background:rgba(255,255,255,.7);color:var(--slate);font-family:var(--font-alt);}
.btn-outline-dark{background:transparent;color:var(--white);border:2px solid rgba(255,255,255,.6);}
.btn-block{width:100%;justify-content:center;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;left:0;right:0;z-index:1000;
  background:var(--black);
}
.site-header .container{
  display:flex;align-items:center;justify-content:flex-start;gap:22px;
  height:var(--header-h);
}
.logo{font-size:26px;font-weight:800;letter-spacing:.5px;flex-shrink:0;}
.logo .l1{color:var(--gold);}
.logo .l2{color:var(--lime);}
.header-brands{display:flex;align-items:center;gap:12px;min-width:0;flex-shrink:0;}
.brand-partner{
  display:flex;align-items:center;flex-shrink:0;
  padding-left:12px;border-left:1px solid rgba(255,255,255,.18);
}
.brand-partner img{
  height:36px;width:auto;border-radius:4px;
  opacity:.92;transition:opacity .15s ease, transform .15s ease;
}
.brand-partner:hover img{opacity:1;transform:translateY(-1px);}

/* ---------- Calculadora de ahorro: resultado ---------- */
#calculadora-resultado h3{margin-bottom:14px;}
#calculadora-resultado .calc-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:22px 0;
}
#calculadora-resultado .calc-item{background:rgba(255,255,255,.08);border-radius:8px;padding:14px 16px;}
#calculadora-resultado .calc-label{display:block;font-size:12.5px;opacity:.85;margin-bottom:4px;}
#calculadora-resultado .calc-value{display:block;font-size:22px;font-weight:800;color:var(--gold);}
#calculadora-resultado .calc-note{font-size:14px;color:#fff;margin:10px 0;}
#calculadora-resultado .calc-note-25{color:rgba(255,255,255,.75);font-size:12.5px;font-style:italic;}
#calculadora-resultado .calc-fine{font-size:12.5px;color:rgba(255,255,255,.8);margin:6px 0;}
#calculadora-resultado .calc-cta{margin-top:28px;padding-top:24px;border-top:1px solid rgba(255,255,255,.15);text-align:center;}
#calculadora-resultado .calc-cta-text{font-size:17px;font-weight:700;color:#fff;margin-bottom:18px;}
#calculadora-resultado .calc-cta-email{font-size:20px;padding:20px 48px;}
@media(max-width:480px){
  #calculadora-resultado .calc-cta-email{
    width:100%;justify-content:center;text-align:center;
    font-size:16px;padding:16px 18px;white-space:normal;line-height:1.3;
  }
}
#calculadora-resultado .calc-item-25{
  grid-column:1 / -1;background:rgba(254,195,0,.14);border:1px solid rgba(254,195,0,.35);
}
#calculadora-resultado .calc-slider-block{
  background:rgba(255,255,255,.08);border-radius:8px;padding:16px 18px;margin:20px 0 0;
}
#calculadora-resultado .calc-slider-block label{display:block;font-size:14px;color:#fff;margin-bottom:10px;}
#calculadora-resultado .calc-slider-block label strong{color:var(--gold);font-size:19px;}
#calculadora-resultado input[type="range"]{
  width:100%;height:6px;cursor:pointer;accent-color:var(--gold);display:block;
}
#calculadora-resultado .calc-slider-hint{font-size:12.5px;color:rgba(255,255,255,.75);margin-top:8px;}
@media(max-width:640px){
  #calculadora-resultado .calc-grid{grid-template-columns:1fr;}
}

/* Enlaces a fuentes oficiales (ayudas / financiacion-ayudas.html) */
.official-sources{margin:14px 0 28px;display:flex;flex-wrap:wrap;gap:10px;}
.official-source-link{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border:1px solid rgba(0,0,0,.14);border-radius:var(--radius-pill);
  font-size:13px;font-weight:700;color:var(--teal);background:#fff;
  transition:background .15s ease,border-color .15s ease,color .15s ease;
}
.official-source-link svg{width:14px;height:14px;flex-shrink:0;}
.official-source-link:hover{background:var(--teal);border-color:var(--teal);color:#fff;}
.main-nav{display:flex;align-items:center;gap:18px;flex-shrink:1;min-width:0;}
.main-nav a{
  color:var(--gold);font-size:14.4px;font-weight:500;text-transform:uppercase;
  letter-spacing:.3px;position:relative;white-space:nowrap;
}
.main-nav a:hover, .main-nav a.active{color:var(--lime);}
.main-nav .has-sub{position:relative;flex-shrink:0;}
.main-nav .sub-menu{
  display:none;position:absolute;top:100%;left:0;background:var(--black);
  min-width:220px;padding:10px 0;border-top:2px solid var(--gold);
}
.main-nav .has-sub:hover .sub-menu{display:block;}
.main-nav .sub-menu a{display:block;padding:8px 18px;font-size:13px;}

.lang-switch{
  display:flex;align-items:center;gap:6px;margin-left:auto;padding-left:18px;
  font-size:13px;font-weight:700;color:var(--gold);flex-shrink:0;
}
.lang-switch button{
  background:none;border:none;cursor:pointer;color:rgba(255,255,255,.45);
  font-family:var(--font);font-weight:700;font-size:13px;padding:4px 6px;
}
.lang-switch button.active{color:var(--gold);}
.lang-switch .sep{color:rgba(255,255,255,.3);}

.nav-toggle{display:none;background:none;border:none;color:var(--gold);font-size:26px;cursor:pointer;flex-shrink:0;}

@media(max-width:1240px){
  .main-nav{
    position:fixed;top:var(--header-h);left:0;right:0;bottom:0;
    background:var(--black);flex-direction:column;align-items:flex-start;
    padding:24px;gap:0;transform:translateX(100%);transition:transform .3s ease;
    overflow-y:auto;
  }
  .main-nav.open{transform:translateX(0);}
  .main-nav a{padding:14px 0;width:100%;border-bottom:1px solid rgba(255,255,255,.08);white-space:normal;}
  .main-nav .sub-menu{position:static;background:none;border:none;padding:0 0 0 16px;}
  .nav-toggle{display:block;}
  .lang-switch{margin-left:auto;margin-right:12px;padding-left:0;}
  .header-brands{gap:10px;}
  .brand-partner{padding-left:10px;}
  .brand-partner img{height:30px;}
}

/* ---------- Hero (home) ---------- */
.hero{
  position:relative;min-height:640px;display:flex;align-items:center;
  background-size:cover;background-position:center;color:var(--white);
  overflow:hidden;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(90deg, rgba(0,0,0,.88) 0%, rgba(0,0,0,.35) 55%, rgba(0,0,0,.15) 100%);
}
.hero .container{position:relative;z-index:2;}
.hero .logo-big{font-size:52px;font-weight:800;margin-bottom:18px;}
.hero .logo-big .l1{color:var(--gold);}
.hero .logo-big .l2{color:var(--lime);}
.hero h1{color:var(--gold);font-size:26px;text-transform:uppercase;line-height:1.4;font-weight:700;}
.hero .btn{margin-top:18px;}

/* ---------- Page banner (inner pages) ---------- */
.page-banner{
  position:relative;padding:120px 0 90px;color:var(--white);
  background-size:cover;background-position:center;overflow:hidden;
}
.page-banner::before{content:'';position:absolute;inset:0;background:rgba(0,0,0,.6);z-index:1;}
.page-banner .container{position:relative;z-index:2;}
.page-banner-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;}
.page-banner .eyebrow{color:var(--gold);}
.page-banner h1{color:var(--lime);font-size:40px;text-transform:uppercase;}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.7);margin-bottom:14px;}
.breadcrumb a{color:var(--gold);}

/* ---------- Diagonal 4-card section ---------- */
.diagonal-cards{
  position:relative;
  background:linear-gradient(90deg, var(--gold) 21%, var(--gold-dark) 100%);
  padding:70px 0 110px;
  clip-path:polygon(0 0,100% 0,100% 88%,0 100%);
}
.diagonal-cards .grid{
  display:grid;grid-template-columns:repeat(3,1fr);
}
.diagonal-cards .card{
  /* Anula el estilo de tarjeta blanca genérico (.card) para que se vea el
     degradado dorado de fondo, como en el diseño original. */
  background:transparent;box-shadow:none;border-radius:0;overflow:visible;
  padding:30px 26px 0;border-right:1px solid rgba(255,255,255,.25);
  text-align:center;
}
.diagonal-cards .card:last-child{border-right:none;}
.diagonal-cards .card h3{color:var(--white);text-transform:uppercase;font-size:22px;}
.diagonal-cards .card p{color:rgba(255,255,255,.9);font-size:15px;min-height:66px;}
@media(max-width:960px){
  .diagonal-cards{clip-path:none;padding:50px 0;}
  .diagonal-cards .grid{grid-template-columns:1fr;gap:36px;}
  .diagonal-cards .card{border-right:none;border-bottom:1px solid rgba(255,255,255,.25);padding-bottom:30px;}
}

/* ---------- Feature / two-col section ---------- */
.feature-split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.feature-split .icon-list{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:28px 0;}
.feature-split .icon-list .icon{width:44px;height:44px;border-radius:50%;background:var(--light-overlay);margin-bottom:12px;display:flex;align-items:center;justify-content:center;color:var(--lime);font-size:20px;}
.feature-split .icon-list.icon-list-lg .icon{width:64px;height:64px;font-size:30px;}
@media(max-width:900px){.feature-split{grid-template-columns:1fr;} .feature-split .icon-list{grid-template-columns:1fr;}}

/* ---------- Why invest / benefits ---------- */
.benefits{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.benefits .item{margin-bottom:28px;display:flex;gap:16px;}
.benefits .item .icon{width:40px;height:40px;border-radius:50%;background:var(--light-overlay);flex:0 0 40px;}
.benefits .item h3{color:var(--lime);margin-bottom:8px;font-size:22px;}
.benefits img{border-radius:6px;}
@media(max-width:900px){.benefits{grid-template-columns:1fr;}}

/* ---------- CTA strip ---------- */
.cta-strip{
  background:var(--teal);color:var(--white);padding:22px 0;text-align:center;
}
.cta-strip a{color:var(--gold);font-weight:700;}

/* ---------- Contact section ---------- */
.contact-section{
  position:relative;background:#000;color:var(--white);padding:90px 0;
}
.contact-section .container{position:relative;z-index:2;}
.contact-section h2{color:var(--gold);font-size:32px;}
.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;max-width:820px;}
.contact-form .field{grid-column:span 1;margin-bottom:22px;}
.contact-form .field.full{grid-column:span 2;}
.contact-form label{display:block;font-size:13px;letter-spacing:1px;text-transform:uppercase;margin-bottom:6px;color:rgba(255,255,255,.85);}
.contact-form input,.contact-form select,.contact-form textarea{
  width:100%;background:transparent;border:none;border-bottom:1px solid rgba(255,255,255,.4);
  color:var(--white);font-family:var(--font);font-size:15px;padding:8px 2px;
}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:rgba(255,255,255,.5);}
.contact-form select option{color:#222;}
.contact-form textarea{resize:vertical;min-height:90px;}
.contact-form .submit-row{grid-column:span 2;display:flex;align-items:center;gap:24px;margin-top:8px;flex-wrap:wrap;}
@media(max-width:700px){.contact-form{grid-template-columns:1fr;} .contact-form .field.full,.contact-form .submit-row{grid-column:span 1;}}
/* main.js hace form.hidden=true tras un envío correcto. Sin esta regla el
   formulario se queda visible en pantalla (botón "Enviando…" incluido) pese
   a estar oculto: display:grid de la regla de arriba tiene la misma prioridad
   de origen que el display:none del atributo [hidden] del navegador, y una
   regla de autor siempre gana — así que el navegador nunca llegaba a ocultarlo
   de verdad. Esta regla, más específica, es la que hace que sí se oculte. */
.contact-form[hidden]{display:none;}
/* Mensajes de éxito/error del envío (cf-feedback-*, ver main.js). No tenían
   ninguna regla propia: el de éxito heredaba color:var(--white) de
   .contact-section y encima llevaba la clase .card (fondo blanco) — texto
   blanco sobre fondo blanco, invisible aunque el envío funcionara. */
.cf-feedback{font-size:15px;line-height:1.5;}
.cf-feedback-error{color:#ff8a80;font-weight:600;margin-top:14px;}
.cf-feedback-success{
  color:var(--teal-dark);background:var(--white);max-width:820px;
  padding:28px 30px;margin-top:24px;font-size:17px;font-weight:700;text-align:center;
}

/* ---------- Footer ---------- */
.site-footer{background:var(--teal);color:rgba(255,255,255,.9);padding:36px 0 20px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:20px;}
.footer-grid h4{color:var(--gold);font-size:15px;text-transform:uppercase;margin-bottom:10px;}
.footer-social{display:flex;gap:12px;margin-top:8px;}
.footer-social a{width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.15);display:flex;align-items:center;justify-content:center;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.2);padding-top:16px;text-align:center;font-size:13px;}
.footer-bottom a{color:var(--gold);}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr;}}

/* ---------- WhatsApp float (prepared, hidden until number available) ---------- */
.whatsapp-float{
  position:fixed;right:24px;bottom:24px;z-index:999;
  width:58px;height:58px;border-radius:50%;background:#25D366;color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:28px;
  box-shadow:0 6px 18px rgba(0,0,0,.25);
}
.whatsapp-float.is-disabled{opacity:.35;pointer-events:none;}

/* ---------- Cards: proyectos / blog / ciudades ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.card-grid.cols-2{grid-template-columns:repeat(2,1fr);}
.card{background:var(--white);border-radius:8px;overflow:hidden;box-shadow:0 4px 18px rgba(0,0,0,.08);transition:transform .2s ease, box-shadow .2s ease;}
.card:hover{transform:translateY(-4px);box-shadow:0 10px 26px rgba(0,0,0,.12);}
.card img{aspect-ratio:4/3;object-fit:cover;width:100%;}
.card .card-body{padding:22px;}
.card .card-body h3{font-size:20px;margin-bottom:8px;color:var(--teal);}
.card .meta{font-size:13px;color:var(--lime);text-transform:uppercase;font-weight:700;margin-bottom:8px;}
.card .card-body p{font-size:14.5px;}
.product-cards .card-body{text-align:center;}
@media(max-width:960px){.card-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:640px){.card-grid,.card-grid.cols-2{grid-template-columns:1fr;}}

/* ---------- Stats / authority counter ---------- */
.price-callout{background:var(--black);color:#fff;border-radius:10px;padding:40px 32px;margin:30px 0;text-align:center;}
.price-callout h2{color:#fff;margin-bottom:14px;}
.price-callout p{max-width:620px;margin:0 auto 12px;color:rgba(255,255,255,.85);}
.price-callout p:last-child{margin-bottom:0;}
.price-callout p a{color:var(--gold);}
.price-callout .price-range{font-size:30px;font-weight:800;color:var(--gold);margin:16px 0;}
.stats-strip{background:var(--black);padding:36px 0;}
.stats-strip .grid{display:grid;grid-template-columns:repeat(3,1fr);text-align:center;gap:24px;}
.stats-strip .num{font-size:40px;font-weight:800;color:var(--gold);}
.stats-strip .label{color:rgba(255,255,255,.75);font-size:14px;text-transform:uppercase;letter-spacing:.5px;}
@media(max-width:700px){.stats-strip .grid{grid-template-columns:1fr;gap:20px;}}

/* ---------- FAQ accordion ---------- */
.faq-item{border-bottom:1px solid #eee;padding:18px 0;}
.faq-q{display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-weight:700;color:var(--heading-gray);font-size:17px;}
.faq-q .plus{color:var(--lime);font-size:22px;transition:transform .2s ease;}
.faq-item.open .faq-q .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;font-size:15px;}
.faq-item.open .faq-a{max-height:800px;padding-top:12px;}
.faq-a a{color:var(--teal);text-decoration:underline;text-decoration-color:rgba(0,139,152,.4);}
.faq-a a:hover{text-decoration-color:var(--teal);}

/* ---------- Badges / helper ---------- */
.badge-todo{
  display:inline-block;background:#FFF3CD;color:#8a6d00;border:1px dashed #d9b400;
  font-size:12px;padding:4px 10px;border-radius:6px;font-weight:700;
}

/* ---------- Utility ---------- */
.mt-0{margin-top:0;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:40px;}
@media(max-width:900px){.grid-2{grid-template-columns:1fr;}}