/*
Theme Name: IoT Studio
Theme URI: https://oscarcabreragonzalez.com
Author: Óscar Cabrera González
Author URI: https://oscarcabreragonzalez.com
Description: Tema a medida, ligero y seguro para el ecosistema B2B de oscarcabreragonzalez IoT Studio. Sin constructores de pago. Sistema de diseño ZeelandFix v3.0 (navy/lime/cyan, Nunito/Righteous). Optimizado para rapidez, seguridad y SEO.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.6
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: iotstudio
*/

/* ═══════════════════════════════════════════════════════════════
 * SISTEMA DE DISEÑO ZeelandFix v3.0 — IoT Studio (origen único)
 * Reglas del proyecto: navy/lime/cyan · Nunito/Righteous ·
 * padding 56/40/28 · mobile-first · seguridad (no select/drag).
 * ═══════════════════════════════════════════════════════════════ */
:root{
  --navy:#1A2E5A; --navy2:#243B73; --lime:#39C700; --lime2:#2EA800;
  --cyan:#0095FF; --cyan2:#0078CC; --white:#fff; --offwhite:#F5F8FF;
  --gray:#5A6475; --lgray:#D8E3F0; --border:#D8E3F0;
  --orange:#FF6B00; --purple:#7C3AED;
  --page-pt:64px; --page-pb:72px; --page-px:24px; --max-w:1120px;
  --sec-gap:104px;        /* separación entre secciones (ritmo "una pantalla") */
  --sec-pad:56px;         /* padding interno de secciones con fondo */
  --radius:18px; --radius-lg:24px; --radius-sm:12px;
  --font-body:'Nunito',sans-serif; --font-heading:'Righteous',cursive;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);background:var(--offwhite);color:var(--navy);
  -webkit-font-smoothing:antialiased;
  -webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}
img{pointer-events:none;-webkit-user-drag:none;user-drag:none;-webkit-touch-callout:none;max-width:100%;height:auto}
a{color:inherit}
.ico{width:1em;height:1em;display:inline-block;vertical-align:-0.12em;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

.zf-page{max-width:var(--max-w);margin:0 auto;padding:0 var(--page-px)}

/* ── Migas de pan · [SEO 08] ──────────────────────────────────────────
   Ruta visible que acompaña al schema BreadcrumbList de inc/seo.php.
   Se pinta llamando a iot_breadcrumbs() desde la plantilla. Nunca en la
   portada. Paleta del sistema: un único verde var(--lime), reservado al
   separador; los textos van en gray y navy para no bajar del contraste
   WCAG 2.1 AA (EN 301 549) que exige el sitio. */
.iot-bc{max-width:var(--max-w);margin:0 auto;padding:14px var(--page-px) 0}
.iot-bc ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;padding:0}
.iot-bc li{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:800;line-height:1.4}
.iot-bc li+li::before{content:'';width:5px;height:5px;border-radius:50%;background:var(--lime);flex-shrink:0}
.iot-bc a{color:var(--gray);text-decoration:none;transition:.15s}
.iot-bc a:hover{color:var(--cyan2)}
.iot-bc [aria-current="page"]{color:var(--navy)}
/* Sobre fondo oscuro (heros navy), basta con añadir .iot-bc--sobre-navy */
.iot-bc--sobre-navy a{color:rgba(255,255,255,.72)}
.iot-bc--sobre-navy a:hover{color:#fff}
.iot-bc--sobre-navy [aria-current="page"]{color:#fff}
@media(max-width:560px){.iot-bc li{font-size:11px}}
.site-main{padding:var(--page-pt) 0 var(--page-pb)}
.site-main > section{margin-bottom:var(--sec-gap)}
.site-main > section:last-child{margin-bottom:0}
.site-main .zf-page > section{margin-bottom:var(--sec-gap)}
.site-main .zf-page > section:last-child{margin-bottom:0}
/* Secciones full-bleed (fondo de color a todo el ancho): sin huecos blancos.
   Se pegan a la anterior y a la siguiente; su separación la da su propio padding. */
.zf-page > section.full-bleed{margin-bottom:0 !important;margin-top:0 !important}
.zf-page > section.full-bleed + section{margin-top:0}
/* Si una sección normal va justo después de una full-bleed, sin hueco extra arriba */
.zf-page > section.full-bleed + section:not(.full-bleed){margin-top:0}
.sec-sep::before,.sec-sep::after{content:'';flex:1;height:2px;background:linear-gradient(90deg,transparent,var(--lgray))}
.sec-sep::after{background:linear-gradient(90deg,var(--lgray),transparent)}
.sec-sep span{width:9px;height:9px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 5px rgba(57,199,0,.12);flex-shrink:0}

/* Carrusel de partners (cinta infinita) */
/* Carrusel de partners (copiado de la v1) */
.carousel{overflow:hidden;position:relative;background:var(--white);border:2px solid var(--border);border-radius:var(--radius-lg);padding:22px 0}
.carousel::before,.carousel::after{content:'';position:absolute;top:0;bottom:0;width:70px;z-index:2;pointer-events:none}
.carousel::before{left:0;background:linear-gradient(90deg,var(--white),transparent)}
.carousel::after{right:0;background:linear-gradient(-90deg,var(--white),transparent)}
.carousel .track{display:flex;gap:18px;width:max-content;animation:scrollX 28s linear infinite}
.carousel:hover .track{animation-play-state:paused}
.carousel button{background:transparent;border:none;cursor:pointer;padding:6px 10px;transition:.25s;filter:grayscale(1);opacity:.75}
.carousel button:hover{filter:grayscale(0);opacity:1;transform:translateY(-2px)}
.carousel button svg{height:46px;width:auto;display:block}
@media (max-width:480px){ .carousel button svg{height:36px} }

/* Tipografía */
.zf-h1{font-family:var(--font-heading);font-size:clamp(28px,5vw,52px);line-height:1.05;color:var(--navy)}
.zf-h2{font-family:var(--font-heading);font-size:clamp(22px,4vw,38px);line-height:1.1;color:var(--navy)}
.zf-h3{font-family:var(--font-heading);font-size:clamp(18px,3vw,26px);line-height:1.15;color:var(--navy)}
.hl{color:var(--lime)} .hc{color:var(--cyan)}
.t-body{font-size:15px;font-weight:600;line-height:1.75;color:var(--gray)}
.t-small{font-size:13px;font-weight:600;line-height:1.7;color:var(--gray)}
.t-price{font-family:var(--font-heading);font-size:36px;line-height:1;color:var(--lime)}

/* Botones — escala profesional y táctil (altura mínima accesible) */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;font-weight:900;
  font-family:var(--font-body);transition:.2s;cursor:pointer;border:none;text-decoration:none;white-space:nowrap;line-height:1;letter-spacing:.2px}
.btn-lg{padding:17px 34px;font-size:15px;min-height:54px}
.btn-md{padding:13px 26px;font-size:13.5px;min-height:46px}
.btn-sm{padding:10px 18px;font-size:12px;min-height:38px}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(26,46,90,.16)}
.btn:active{transform:translateY(0)}
.btn-lime{background:var(--lime);color:var(--navy)}.btn-lime:hover{background:var(--lime2);color:#fff}
.btn-navy{background:var(--navy);color:var(--white)}.btn-navy:hover{background:var(--navy2)}
.btn-cyan{background:var(--cyan);color:var(--white)}.btn-cyan:hover{background:var(--cyan2)}
.btn-ghost{background:transparent;color:var(--white);border:2px solid rgba(255,255,255,.3)}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime)}
.btn-outline{background:transparent;color:var(--navy);border:2px solid var(--border)}
.btn-outline:hover{border-color:var(--lime)}
.btn .ico{font-size:16px}

/* Cards / tags / grids */
.zf-card{background:var(--white);border-radius:var(--radius);border:2px solid var(--border);overflow:hidden;transition:.25s}
.zf-card:hover{border-color:var(--lime);box-shadow:0 8px 28px rgba(57,199,0,.1);transform:translateY(-3px)}
.tag{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 14px;font-size:10px;font-weight:900;letter-spacing:2px;text-transform:uppercase}
.tag-lime{background:rgba(57,199,0,.1);border:1px solid rgba(57,199,0,.25);color:var(--lime2)}
.tag-cyan{background:rgba(0,149,255,.1);border:1px solid rgba(0,149,255,.25);color:var(--cyan)}
.tag-navy{background:rgba(26,46,90,.08);color:var(--navy)}
.tag-pulse::before{content:'';width:7px;height:7px;border-radius:50%;background:var(--lime);animation:pulse 1.5s infinite}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.sec-head{display:flex;align-items:center;gap:14px;margin-bottom:32px;padding-bottom:16px;border-bottom:2px solid var(--border)}
.sec-head-link{margin-left:auto;font-size:12px;font-weight:800;color:var(--cyan);text-decoration:none}
.sec-head-link:hover{color:var(--lime)}
.hb{border-radius:12px;padding:13px 16px;margin:12px 0;font-size:12px;font-weight:700;line-height:1.7}
.hb-i{background:rgba(0,149,255,.05);border:1px solid rgba(0,149,255,.15);color:#003B6F}

/* Iconos en círculo */
.ico-circle{width:44px;height:44px;border-radius:50%;background:var(--lime);color:#fff;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:22px}
.ico-circle.lg{width:56px;height:56px;font-size:28px}
.ico-circle.cyan{background:var(--cyan)}
.ico-circle.navy{background:var(--navy)}

/* Sección navy */
.sec-navy{background:linear-gradient(135deg,var(--navy) 0%,#243B73 100%);border-radius:var(--radius-lg);padding:var(--sec-pad) clamp(28px,4vw,56px);position:relative;overflow:hidden}
.sec-navy::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 85% 15%,rgba(57,199,0,.08),transparent 50%);pointer-events:none}

/* Animaciones */
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@keyframes dash{to{stroke-dashoffset:-24}}
@keyframes scrollX{to{transform:translateX(-50%)}}

/* Ciclo día/noche del fondo de la sección Hero (integrado, sin recuadro) */
.hero{background:linear-gradient(135deg,#1A2E5A 0%,#2E6FB0 100%)}
@keyframes heroSky{
  0%   { background:linear-gradient(135deg,#0E1733 0%,#1A2E5A 100%); }
  12%  { background:linear-gradient(135deg,#3B2A55 0%,#5B3A6B 100%); }
  28%  { background:linear-gradient(135deg,#1A2E5A 0%,#2E6FB0 100%); }
  55%  { background:linear-gradient(135deg,#1A2E5A 0%,#2E6FB0 100%); }
  72%  { background:linear-gradient(135deg,#3B2A55 0%,#5B3A6B 100%); }
  90%  { background:linear-gradient(135deg,#0E1733 0%,#1A2E5A 100%); }
  100% { background:linear-gradient(135deg,#0E1733 0%,#1A2E5A 100%); }
}
.hero.hero-daynight{animation:heroSky 14s ease-in-out infinite}
@media (prefers-reduced-motion:reduce){ .hero.hero-daynight{animation:none} }
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ── CABECERA ── */
.topbar{background:var(--navy);color:#fff;font-size:12.5px;font-weight:800;padding:10px 0}
.topbar .zf-page{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.topbar a{color:#fff;text-decoration:none;display:inline-flex;align-items:center;gap:7px}
.topbar a:hover{color:var(--lime)}
.topbar .pitch{display:inline-flex;align-items:center;gap:7px;color:rgba(255,255,255,.85)}
.topbar .pitch .ico{color:var(--lime);font-size:15px}
.topbar-cta{margin-left:auto;background:var(--lime);color:var(--navy)!important;border-radius:999px;padding:6px 16px;font-weight:900;font-size:11.5px;letter-spacing:.3px;display:inline-flex;align-items:center;gap:7px;transition:.2s}
.topbar-cta:hover{background:var(--lime2);color:var(--navy)!important;transform:translateY(-1px)}
.topbar-cta .ico{color:var(--navy);font-size:14px}
header.main{background:var(--white);border-bottom:1px solid var(--border);padding:16px 0;position:sticky;top:0;z-index:50;box-shadow:0 2px 16px rgba(26,46,90,.05)}
header.main .zf-page{display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex-shrink:0}
.brand img,.brand .custom-logo{height:62px;width:auto;max-width:340px;object-fit:contain}
.brand-name{font-family:var(--font-heading);font-size:17px;color:var(--navy);letter-spacing:.5px;line-height:1.05}
.brand-name span{color:var(--lime)}
.menu{margin-left:auto;display:flex;gap:2px;flex-wrap:wrap;align-items:center}
.menu .menu-list{display:flex;gap:2px;flex-wrap:wrap;align-items:center;list-style:none;margin:0;padding:0}
.menu .menu-list li{list-style:none}
.menu a,.menu .menu-list a{font-size:13px;font-weight:800;color:var(--navy);text-decoration:none;padding:10px 14px;border-radius:999px;transition:.2s;display:inline-block}
.menu a:hover,.menu a.active,.menu .current-menu-item a,.menu .menu-list a:hover{background:rgba(57,199,0,.1);color:var(--lime2)}
.menu a.cta{background:var(--lime);color:var(--navy);margin-left:6px;padding:11px 20px}
.menu a.cta:hover{background:var(--lime2);color:#fff}
.hdr-actions{display:flex;align-items:center;gap:10px;margin-left:18px;flex-shrink:0}
.icn-btn{position:relative;background:#fff;color:var(--navy);border:2px solid var(--border);border-radius:50%;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:.2s;text-decoration:none;flex-shrink:0}
.icn-btn:hover{border-color:var(--lime);color:var(--lime2)}
.cart-btn{position:relative;background:var(--navy);color:#fff;border:none;border-radius:50%;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:.2s;flex-shrink:0}
.cart-btn:hover{background:var(--navy2)}
.icn-btn .ico,.cart-btn .ico{font-size:19px}
.icn-btn .count,.cart-btn .count{position:absolute;top:-6px;right:-6px;background:var(--lime);color:var(--navy);font-size:10px;font-weight:900;border-radius:999px;min-width:19px;height:19px;display:flex;align-items:center;justify-content:center;padding:0 5px;border:2px solid #fff}

/* ── PIE ── */
footer.site-footer{background:var(--navy);color:#fff;border-radius:var(--radius-lg) var(--radius-lg) 0 0;padding:56px 0 32px;margin-top:var(--sec-gap)}
.ft-cols{display:grid;grid-template-columns:1.05fr 1.15fr 1.05fr .8fr 1.35fr;gap:26px;align-items:start}
.ft-col h4{font-family:var(--font-heading);font-size:12px;letter-spacing:1px;text-transform:uppercase;color:var(--lime);margin-bottom:14px}
.ft-links a{display:block;font-size:12.5px;font-weight:700;color:rgba(255,255,255,.7);text-decoration:none;padding:6px 0;transition:.18s}
.ft-links a:hover{color:var(--lime);transform:translateX(3px)}
.ft-col p{font-size:12px;font-weight:600;color:rgba(255,255,255,.62);line-height:1.7;margin-bottom:12px}
.ft-social{display:flex;gap:10px}
.ft-social a{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;color:#fff;transition:.2s}
.ft-social a:hover{background:var(--lime);border-color:var(--lime)}
.ft-social .ico{font-size:20px}
.ft-nl-form input[type=email]{width:100%;border:2px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);border-radius:999px;padding:11px 16px;font-family:var(--font-body);font-size:12px;font-weight:700;color:#fff;outline:none;margin-bottom:9px}
.ft-nl-form input[type=email]::placeholder{color:rgba(255,255,255,.45)}
.ft-nl-form input[type=email]:focus{border-color:var(--lime)}
.ft-nl-form label{display:flex;gap:7px;align-items:flex-start;font-size:10.5px;font-weight:700;color:rgba(255,255,255,.6);margin-bottom:7px;cursor:pointer}
.ft-nl-form .btn{width:100%;justify-content:center;margin-top:4px}
.ft-divider{height:1px;background:rgba(255,255,255,.12);margin:30px 0 18px}
.ft-bottom{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.ft-bottom .legal{font-size:11px;font-weight:700;color:rgba(255,255,255,.45);line-height:1.6;margin-right:auto}
.ft-bottom .legal b{color:rgba(255,255,255,.7)}
.pay{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.pay span{font-size:9px;font-weight:900;letter-spacing:.5px;color:rgba(255,255,255,.78);background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:6px;padding:5px 8px}
.pay .secure{display:inline-flex;align-items:center;gap:5px;color:var(--lime);background:none;border:none;padding:0;font-size:10px}

/* ── WhatsApp flotante ── */
.wa-float{position:fixed;right:20px;bottom:20px;z-index:90;width:56px;height:56px;border-radius:50%;background:var(--lime);color:#fff;display:flex;align-items:center;justify-content:center;text-decoration:none;box-shadow:0 6px 20px rgba(57,199,0,.4);transition:.2s}
.wa-float:hover{transform:scale(1.08);background:var(--lime2)}

/* ── Cookies + Newsletter modal ── */
.cookies{position:fixed;left:16px;right:16px;bottom:16px;z-index:100;background:var(--white);border:2px solid var(--border);border-radius:var(--radius);padding:18px 22px;max-width:560px;margin:0 auto;box-shadow:0 12px 40px rgba(26,46,90,.18);display:none}
.cookies.show{display:block;animation:fadeUp .4s}
.cookies p{font-size:12px;font-weight:600;color:var(--gray);line-height:1.7;margin-bottom:12px}
.cookies .row{display:flex;gap:10px;flex-wrap:wrap}
.modal-bg{position:fixed;inset:0;background:rgba(26,46,90,.55);z-index:110;display:none;align-items:center;justify-content:center;padding:20px}
.modal-bg.show{display:flex}
.nl-modal{background:var(--white);border-radius:var(--radius-lg);max-width:460px;width:100%;padding:32px;position:relative;animation:fadeUp .35s}
.nl-modal .close{position:absolute;top:14px;right:14px;background:rgba(26,46,90,.08);border:none;width:32px;height:32px;border-radius:50%;font-size:14px;cursor:pointer;color:var(--navy);font-weight:900}
.nl-modal input[type=email]{width:100%;border:2px solid var(--border);border-radius:999px;padding:12px 18px;font-family:var(--font-body);font-size:13px;font-weight:700;margin:14px 0 10px;outline:none}
.nl-modal input[type=email]:focus{border-color:var(--lime)}
.nl-modal label{display:flex;gap:8px;align-items:flex-start;font-size:11px;font-weight:700;color:var(--gray);margin-bottom:8px;cursor:pointer}

/* Honeypot anti-spam (oculto a humanos, visible para bots) */
.hp-field{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}

/* ── RESPONSIVE (reglas del proyecto) ── */
@media (max-width:900px){ .ft-cols{grid-template-columns:1fr 1fr 1fr} }
@media (max-width:768px){
  :root{--page-pt:48px;--page-pb:56px;--page-px:18px;--sec-gap:72px;--sec-pad:40px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr 1fr}
  .menu a:not(.cta){display:none}
  .menu{margin-left:auto;gap:0}
  .topbar .pitch{display:none}
  .brand img,.brand .custom-logo{height:44px;max-width:190px}
  header.main .zf-page{gap:12px}
  .ft-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){ .ft-cols{grid-template-columns:1fr 1fr} }
@media (max-width:480px){
  :root{--page-pt:36px;--page-pb:44px;--page-px:14px;--sec-gap:56px;--sec-pad:28px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .btn-lg{padding:15px 26px;font-size:14px;min-height:50px}
  .menu a.cta{display:none}
  .brand img,.brand .custom-logo{height:40px;max-width:165px}
}
@media (max-width:380px){ .ft-cols{grid-template-columns:1fr} }

/* ── KPIs del hero (copiado de la v1) ── */
/* ── KPIs del hero ── */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;padding:0 44px 36px;position:relative}
.kpi{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:14px;text-align:center}
.kpi-v{font-family:var(--font-heading);font-size:24px;color:var(--lime);line-height:1}
.kpi-l{font-size:9px;font-weight:800;color:rgba(255,255,255,.5);text-transform:uppercase;letter-spacing:.5px;margin-top:4px}
@media (max-width:768px){ .kpi-grid{grid-template-columns:1fr 1fr;padding:0 24px 28px} }

/* ── Countdown del lanzamiento exclusivo (copiado de la v1) ── */
.countdown{display:flex;gap:8px;margin:16px 0;flex-wrap:wrap}
.cd{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:10px;padding:8px 12px;text-align:center;min-width:58px}
.cd b{font-family:var(--font-heading);font-size:20px;color:var(--lime);display:block}
.cd span{font-size:8px;font-weight:800;letter-spacing:1px;text-transform:uppercase;color:rgba(255,255,255,.5)}

/* ═══ S2 · El ROI de un ecosistema IoT a medida ═══ */
.eco{
  background:linear-gradient(160deg,#FFFFFF 0%,#F5F8FF 60%,#EEF6FF 100%);
  border:2px solid var(--border); border-radius:var(--radius-lg);
  padding:clamp(30px,4vw,50px); box-shadow:0 12px 36px rgba(26,46,90,.08);
}
.eco-wrap{ width:100%; max-width:960px; margin:0 auto; }
.eco-intro strong{ color:var(--navy); }

/* Núcleo gráfico */
.eco-core{ display:flex; justify-content:center; margin:6px auto 26px; }
.eco-svg{ width:100%; height:auto; max-width:680px; }

/* Sub-iconos: aparecen lentamente, se mantienen un rato, y el ciclo se repite */
.eco-svg .sub{ opacity:0; animation:ecoSeq 12s ease-in-out infinite; animation-delay:var(--seq); }
@keyframes ecoSeq{
  0%{ opacity:0; }
  10%{ opacity:1; }
  88%{ opacity:1; }
  97%,100%{ opacity:0; }
}

.eco-foot{ display:flex; justify-content:center; margin-top:30px; }

@media (prefers-reduced-motion:reduce){
  .eco-svg .sub{ animation:none; opacity:1; }
}
@media (max-width:560px){
  .eco-svg{ max-width:100%; }
  .eco-foot .btn{ width:100%; justify-content:center; }
}

/* ═══ S3 · Solución por capas (stack apilado, fondo navy) ═══ */
.stack{
  background:linear-gradient(135deg,var(--navy) 0%,#243B73 100%);
  border-radius:var(--radius-lg);
  padding:clamp(30px,4vw,52px);
  position:relative; overflow:hidden;
  box-shadow:0 12px 36px rgba(26,46,90,.18);
}
.stack::before{ content:''; position:absolute; inset:0; background:radial-gradient(circle at 85% 12%,rgba(57,199,0,.10),transparent 50%); pointer-events:none; }
.stack-wrap{ width:100%; max-width:920px; margin:0 auto; position:relative; z-index:1; }

.stack-main{ display:grid; grid-template-columns:1fr 1fr; gap:32px; align-items:center; }
.stack-3d{ display:flex; justify-content:center; }
.stack-3d svg{ width:100%; height:auto; max-width:400px; }

/* Capas que aparecen apilándose (de abajo arriba) y se quedan, en bucle */
.stack-3d .ly{ opacity:0; transform:translateY(16px); animation:stackIn 6s ease-in-out infinite; animation-delay:var(--d); transform-box:view-box; }
@keyframes stackIn{
  0%{ opacity:0; transform:translateY(16px); }
  8%{ opacity:1; transform:translateY(0); }
  88%{ opacity:1; transform:translateY(0); }
  97%,100%{ opacity:0; transform:translateY(16px); }
}

/* Leyenda de capas */
.stack-list{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:12px; }
.stack-item{ display:flex; align-items:flex-start; gap:13px; background:rgba(255,255,255,.07); border:1px solid rgba(255,255,255,.14); border-left:4px solid var(--c); border-radius:var(--radius-sm); padding:14px 16px; transition:.2s; }
.stack-item:hover{ background:rgba(255,255,255,.12); transform:translateX(4px); }
.stack-dot{ flex-shrink:0; width:14px; height:14px; border-radius:50%; background:var(--c); margin-top:3px; box-shadow:0 0 10px var(--c); }
.stack-item h3{ font-family:var(--font-heading); font-size:15px; color:#fff; margin:0 0 3px; }
.stack-item p{ font-size:12.5px; font-weight:600; line-height:1.5; color:rgba(255,255,255,.62); margin:0; }

@media (prefers-reduced-motion:reduce){ .stack-3d .ly{ animation:none; opacity:1; transform:none; } }
@media (max-width:860px){
  .stack-main{ grid-template-columns:1fr; gap:24px; }
  .stack-3d{ order:-1; max-width:360px; margin:0 auto; }
  .stack-foot .btn{ width:100%; justify-content:center; }
}

/* ═══ S3 · Cinco capas — animaciones + interacción hover ═══ */
.stk::before{ content:''; position:absolute; inset:0; background:radial-gradient(circle at 85% 12%,rgba(57,199,0,.10),transparent 55%); pointer-events:none; }

/* Entrada: ensamblado escalonado */
.stk-layer{ opacity:0; transform:translateY(-22px); animation:stkDrop .6s cubic-bezier(.22,1,.36,1) forwards; animation-delay:calc(var(--n) * .18s); transition:opacity .3s, transform .3s, border-color .3s, background .3s; }
@keyframes stkDrop{ to{ opacity:1; transform:translateY(0); } }

/* Hover: la capa activa resalta, las demás se atenúan */
.stk-stack:hover .stk-layer{ opacity:.32; }
.stk-stack .stk-layer:hover{ opacity:1; transform:translateX(4px) translateY(0); border-color:rgba(57,199,0,.6); background:rgba(57,199,0,.14); box-shadow:0 8px 26px rgba(0,0,0,.25); }

/* Panel de historias: idle por defecto; JS activa la historia correspondiente con .is-active */
.stk-story{ transition:opacity .45s ease; }
.stk-stage.has-active .stk-story--idle{ opacity:0; }
.stk-story.is-active{ opacity:1 !important; }

/* Mini-animaciones de iconos de capa */
.stk-blink{ animation:stkBlink 1.6s ease-in-out infinite; }
@keyframes stkBlink{ 0%,100%{ opacity:1; } 50%{ opacity:.2; } }
.stk-dash{ stroke-dasharray:4 4; animation:stkDash 1s linear infinite; }
@keyframes stkDash{ to{ stroke-dashoffset:-16; } }
.stk-wave1,.stk-wave2{ animation:stkWave 2s ease-out infinite; }
.stk-wave2{ animation-delay:.4s; }
@keyframes stkWave{ 0%{ opacity:.2; } 50%{ opacity:1; } 100%{ opacity:.2; } }
.stk-shield{ animation:stkPulse 2s ease-in-out infinite; }
@keyframes stkPulse{ 0%,100%{ opacity:.2; } 50%{ opacity:.6; } }
.stk-pin{ animation:stkBlink 1.4s ease-in-out infinite; }

/* Animaciones dentro de las historias */
.stk-app-n{ animation:stkBlink 1.3s ease-in-out infinite; }
.stk-raid{ animation:stkBlink 1s ease-in-out infinite; }
.stk-raid:nth-child(2){ animation-delay:.3s; } .stk-raid:nth-child(3){ animation-delay:.6s; }
.stk-os{ stroke-dasharray:70; animation:stkOsSpin 2.5s linear infinite; }
@keyframes stkOsSpin{ to{ stroke-dashoffset:-140; } }
.stk-3d{ animation:stkBlink 1.5s ease-in-out infinite; }

@media (prefers-reduced-motion:reduce){
  .stk-layer{ animation:none; opacity:1; transform:none; }
  .stk-blink,.stk-dash,.stk-wave1,.stk-wave2,.stk-shield,.stk-pin,.stk-app-n,.stk-raid,.stk-os,.stk-3d{ animation:none; }
}
@media (max-width:820px){
  .stk-cols{ grid-template-columns:1fr !important; }
  .stk-stage{ min-height:240px; }
}