/* ============================================================
   ControlSolar — theme.css  ·  shell, layout, header, footer, buttons
   Consume los tokens de tokens/*.css. Sin números de prueba social
   inventados (decisión de marca): confianza cualitativa, no métricas falsas.
   ============================================================ */

/* ---------- base helpers ---------- */
*,*::before,*::after{box-sizing:border-box;}
img{max-width:100%;display:block;}
[hidden]{display:none!important;}
.cs-container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter);}
.cs-section{padding-block:var(--section-y);}
.cs-eyebrow{font-family:var(--font-text);font-size:var(--fs-eyebrow);font-weight:var(--fw-semibold);letter-spacing:var(--ls-eyebrow);text-transform:uppercase;color:var(--accent);display:inline-block;}
.cs-eyebrow--shade{color:var(--cs-amber-200);}
.cs-h2{font-family:var(--font-display);font-weight:600;font-size:clamp(1.9rem,2.8vw,2.8rem);line-height:1.05;letter-spacing:-.02em;color:var(--cs-ink);margin:0;}
.cs-h2--on-shade{color:#fff;}
.cs-lead{font:var(--type-lead);color:var(--text-body);margin:0;}
.cs-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0;}

/* ---------- buttons ---------- */
.cs-btn{display:inline-flex;align-items:center;justify-content:center;gap:.55em;height:var(--control-h-md);padding:0 22px;
  font-family:var(--font-text);font-size:var(--fs-body);font-weight:var(--fw-semibold);line-height:1;letter-spacing:var(--ls-tight);
  border:1px solid transparent;border-radius:var(--radius-md);cursor:pointer;white-space:nowrap;text-decoration:none;
  transition:background var(--dur-fast) var(--ease-out),box-shadow var(--dur-fast) var(--ease-out),transform var(--dur-fast) var(--ease-out),border-color var(--dur-fast) var(--ease-out);
  -webkit-tap-highlight-color:transparent;}
.cs-btn:active{transform:scale(.98);}
.cs-btn--accent{background:var(--accent);color:var(--text-on-amber);box-shadow:var(--shadow-amber);}
.cs-btn--accent:hover{background:var(--accent-hover);}
.cs-btn--teal{background:var(--cs-teal-700);color:#fff;}
.cs-btn--teal:hover{background:var(--cs-teal-900);box-shadow:0 6px 16px rgba(10,43,44,.32);transform:translateY(-1px);}
.cs-btn--teal:active{transform:scale(.98);}
.cs-btn--secondary{background:var(--surface-card);color:var(--text-strong);border-color:var(--border-default);box-shadow:var(--shadow-xs);}
.cs-btn--secondary:hover{background:var(--surface-raised);border-color:var(--border-strong);}
.cs-btn--lg{height:var(--control-h-lg);padding:0 28px;}
.cs-btn--xl{height:var(--control-h-xl);padding:0 36px;font-size:var(--fs-lead);}
.cs-btn--block{width:100%;}
/* el botón puede ser <a>: anular subrayado y color de enlace/visitado */
.cs-btn,.cs-btn:hover,.cs-btn:focus,.cs-btn:visited{text-decoration:none;}
.cs-btn--teal,.cs-btn--teal:visited,.cs-btn--teal:hover{color:#fff;}
.cs-btn--accent,.cs-btn--accent:visited,.cs-btn--accent:hover{color:var(--text-on-amber);}
.cs-btn--secondary,.cs-btn--secondary:visited,.cs-btn--secondary:hover{color:var(--text-strong);}

/* ---------- header (sticky glass) ---------- */
.cs-header{position:sticky;top:0;z-index:var(--z-header);background:var(--glass-bg);
  backdrop-filter:blur(var(--blur-md));-webkit-backdrop-filter:blur(var(--blur-md));border-bottom:1px solid var(--border-hairline);}
.cs-header__inner{max-width:var(--container);margin:0 auto;padding:0 var(--gutter);height:70px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;}
.cs-logo{display:flex;align-items:center;}
.cs-nav{display:flex;align-items:center;gap:30px;}
.cs-nav a{font:var(--type-label);color:var(--text-body);text-decoration:none;white-space:nowrap;}
.cs-nav a:hover{color:var(--cs-ink);}
.cs-header__right{display:flex;align-items:center;gap:12px;}
.cs-header__login{font:var(--type-label);color:var(--text-strong);text-decoration:none;}
.cs-burger{display:none;width:42px;height:42px;border:1px solid var(--border-default);border-radius:var(--radius-md);background:var(--surface-card);align-items:center;justify-content:center;cursor:pointer;color:var(--cs-ink);}

/* mobile nav panel */
.cs-mobnav{display:none;position:fixed;inset:70px 0 0;z-index:var(--z-overlay);background:var(--cs-canvas);padding:24px var(--gutter);flex-direction:column;gap:6px;}
.cs-mobnav.is-open{display:flex;}
.cs-mobnav a{font-family:var(--font-display);font-size:var(--fs-h3);color:var(--cs-ink);text-decoration:none;padding:14px 0;border-bottom:1px solid var(--border-hairline);}

/* ---------- hero ---------- */
.cs-hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#FFCB7D 0%,#FFB44C 40%,#F89A2A 100%);}
.cs-hero__slats{position:absolute;inset:0;background:repeating-linear-gradient(180deg,rgba(22,20,19,0) 0 16px,rgba(22,20,19,.12) 16px 25px);mix-blend-mode:multiply;opacity:.55;}
.cs-hero__glow{position:absolute;top:-18%;right:6%;width:46%;height:78%;border-radius:50%;background:radial-gradient(circle,rgba(255,224,166,.9),rgba(255,224,166,0) 68%);}
.cs-hero__scrim{position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,43,44,.88) 0%,rgba(15,61,62,.5) 40%,rgba(15,61,62,0) 66%);}
.cs-hero__inner{position:relative;max-width:var(--container);margin:0 auto;padding:clamp(48px,6vw,96px) var(--gutter);
  display:flex;align-items:center;justify-content:space-between;gap:56px;flex-wrap:wrap;}
.cs-hero__copy{flex:1 1 460px;max-width:560px;display:flex;flex-direction:column;gap:24px;}
.cs-hero__title{font-family:var(--font-display);font-weight:600;font-size:clamp(2.6rem,3.6vw,4rem);line-height:1.02;letter-spacing:-.02em;color:#F4F2ED;margin:0;}
.cs-hero__sub{font:var(--type-lead);color:#DCE7E5;margin:0;max-width:460px;}
.cs-hero__proof{display:flex;align-items:center;gap:12px;margin-top:4px;color:#DCE7E5;font:var(--type-label);font-size:14px;}
.cs-hero__proof svg{color:var(--cs-amber-200);flex:0 0 auto;}
.cs-hero__proof strong{color:#fff;}
.cs-hero__widget{flex:0 1 440px;width:100%;max-width:440px;}

/* ---------- trust strip (qualitative, no invented numbers) ---------- */
.cs-trust{background:var(--cs-canvas);border-bottom:1px solid var(--border-hairline);}
.cs-trust__inner{max-width:var(--container);margin:0 auto;padding:clamp(28px,3.5vw,44px) var(--gutter);
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.cs-trust__item{display:flex;align-items:center;gap:12px;}
.cs-trust__icon{flex:0 0 auto;width:44px;height:44px;border-radius:var(--radius-md);background:var(--cs-teal-050);color:var(--cs-teal-700);display:inline-flex;align-items:center;justify-content:center;}
.cs-trust__t{font-family:var(--font-display);font-weight:500;font-size:var(--fs-h4);color:var(--cs-ink);line-height:1.1;}
.cs-trust__d{font:var(--type-label);font-size:var(--fs-sm);color:var(--text-muted);}

/* ---------- section heading ---------- */
.cs-head{display:flex;flex-direction:column;gap:12px;max-width:620px;margin-bottom:44px;}
.cs-head--center{align-items:center;text-align:center;margin-inline:auto;margin-bottom:52px;}

/* ---------- services grid ---------- */
.cs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}

/* ---------- how it works ---------- */
.cs-how{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.cs-how__card{display:flex;flex-direction:column;gap:14px;padding:32px 28px;background:var(--surface-card);border:1px solid var(--border-hairline);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);}
.cs-how__icon{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:var(--radius-md);background:var(--cs-teal-050);color:var(--cs-teal-700);}
.cs-how__n{font:var(--type-label);font-size:var(--fs-eyebrow);font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--text-muted);}
.cs-how__t{font-family:var(--font-display);font-weight:500;font-size:var(--fs-h4);margin:0;color:var(--cs-ink);}
.cs-how__b{font:var(--type-body);font-size:var(--fs-sm);color:var(--text-body);margin:0;}

/* ---------- before/after section ---------- */
.cs-ba-sec{background:var(--cs-teal-900);color:var(--text-on-shade);}
.cs-ba-sec__inner{max-width:var(--container);margin:0 auto;padding:clamp(56px,7vw,104px) var(--gutter);
  display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:center;}
.cs-ba-sec__copy{display:flex;flex-direction:column;gap:18px;}
.cs-ba-sec__sub{font:var(--type-lead);color:var(--text-on-shade-muted);margin:0;max-width:380px;}

/* ---------- final CTA band ---------- */
.cs-ctaband{background:var(--cs-canvas);}
.cs-ctaband__inner{max-width:var(--container);margin:0 auto;padding:0 var(--gutter) clamp(56px,7vw,112px);}
.cs-ctaband__box{position:relative;overflow:hidden;border-radius:var(--radius-2xl);
  background:linear-gradient(120deg,#114a4a 0%,#0F3D3E 60%,#0A2B2C 100%);padding:clamp(40px,5vw,72px);
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cs-ctaband__glow{position:absolute;top:-30%;right:-6%;width:42%;height:120%;border-radius:50%;background:radial-gradient(circle,rgba(255,158,44,.22),rgba(255,158,44,0) 70%);}
.cs-ctaband__copy{position:relative;display:flex;flex-direction:column;gap:14px;max-width:520px;}

/* ---------- footer ---------- */
.cs-footer{background:var(--surface-shade);color:var(--text-on-shade);}
.cs-footer__inner{max-width:var(--container);margin:0 auto;padding:var(--space-12) var(--gutter) var(--space-7);}
.cs-footer__cols{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px;}
.cs-footer__brand{display:flex;flex-direction:column;gap:16px;max-width:280px;}
.cs-footer__brand p{font:var(--type-body);font-size:var(--fs-sm);color:var(--text-on-shade-muted);margin:0;}
.cs-footer__col{display:flex;flex-direction:column;gap:12px;}
.cs-footer__col span{font:var(--type-label);font-size:var(--fs-eyebrow);letter-spacing:var(--ls-eyebrow);text-transform:uppercase;color:var(--cs-amber-200);}
.cs-footer__col a{font:var(--type-body);font-size:var(--fs-sm);color:var(--text-on-shade-muted);text-decoration:none;}
.cs-footer__col a:hover{color:#fff;}
.cs-footer__bar{margin-top:var(--space-10);padding-top:var(--space-5);border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;
  font:var(--type-body);font-size:var(--fs-xs);color:var(--text-on-shade-muted);}
.cs-footer__legal a{color:var(--text-on-shade-muted);text-decoration:none;margin-left:20px;}
.cs-footer__legal a:hover{color:#fff;}

/* ---------- páginas legales / prosa ---------- */
.cs-legal{padding-block:clamp(48px,6vw,88px);}
.cs-legal__head{max-width:760px;margin:0 auto 32px;display:flex;flex-direction:column;gap:10px;}
.cs-legal__title{font-family:var(--font-display);font-weight:600;font-size:clamp(2rem,3vw,3rem);line-height:1.05;letter-spacing:-.02em;color:var(--cs-ink);margin:0;}
.cs-prose{max-width:760px;margin:0 auto;}
.cs-prose h2{font-family:var(--font-display);font-weight:600;font-size:var(--fs-h3);color:var(--cs-ink);margin:36px 0 12px;}
.cs-prose h3{font-family:var(--font-display);font-weight:500;font-size:var(--fs-h4);color:var(--cs-ink);margin:24px 0 8px;}
.cs-prose p{font:var(--type-body);color:var(--text-body);margin:0 0 16px;}
.cs-prose ul{margin:0 0 16px;padding-left:22px;display:flex;flex-direction:column;gap:6px;}
.cs-prose li{font:var(--type-body);color:var(--text-body);}
.cs-prose a{color:var(--cs-teal-700);font-weight:500;text-decoration:underline;text-underline-offset:3px;}
.cs-prose strong{color:var(--cs-ink);}
.cs-prose .cs-updated{font:var(--type-label);font-size:var(--fs-sm);color:var(--text-muted);margin-bottom:24px;}

/* ---------- scroll reveal (transform-only) ---------- */
[data-reveal]{transition:transform var(--dur-reveal) var(--ease-out);}
[data-reveal]:not(.rv-in){transform:translateY(16px);}

/* ---------- responsive ---------- */
@media (max-width:980px){
  .cs-ba-sec__inner{grid-template-columns:1fr;gap:32px;}
  .cs-footer__cols{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:820px){
  .cs-nav,.cs-header__login{display:none;}
  .cs-burger{display:inline-flex;}
  .cs-grid{grid-template-columns:repeat(2,1fr);}
  .cs-how{grid-template-columns:1fr;}
  .cs-trust__inner{grid-template-columns:1fr 1fr;gap:18px;}
  .cs-hero__inner{flex-direction:column;align-items:stretch;}
  .cs-hero__copy{max-width:none;}
}
@media (max-width:560px){
  .cs-grid{grid-template-columns:1fr;}
  .cs-trust__inner{grid-template-columns:1fr;}
  .cs-footer__cols{grid-template-columns:1fr;}
  .cs-ctaband__box{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  [data-reveal]{transition:none;}
  [data-reveal]:not(.rv-in){transform:none;}
}