/* ===== f'c estructural — portafolio / landing ===== */
:root{
  --navy:      #14294a;   /* azul marino del logo (f'c) */
  --navy-2:    #24476f;   /* azul marino claro */
  --charcoal:  #2b2f36;   /* gris carbón del logo (estructural) */
  --ink:       #1b1f24;
  --paper:     #f5f7fa;
  --line:      #e3e7ee;
  --muted:     #6b7480;
  --white:     #ffffff;
  --accent:    #2f6fb0;   /* azul de acción */
  --shadow:    0 6px 22px rgba(20,41,74,.10);
  --radius:    14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--white);
  line-height:1.55;
  -webkit-text-size-adjust:100%;text-size-adjust:100%;
}
a{color:inherit;text-decoration:none}
/* Enlaces dentro de texto: tienen que verse como enlaces */
.link{
  color:var(--accent);font-weight:600;
  text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:2.5px;
  transition:color .15s ease,text-decoration-thickness .15s ease;
}
.link:hover{color:var(--navy);text-decoration-thickness:2.5px}
img{max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 22px}
/* La barra es fija: al saltar a una sección hay que dejarle su altura libre. */
[id]{scroll-margin-top:92px}
/* Foco visible con teclado, sin el halo permanente del clic */
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}

/* ======================= NAV (fija, blanca) ======================= */
.nav{
  position:sticky;top:0;z-index:40;
  background:rgba(255,255,255,.985);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  padding-top:env(safe-area-inset-top,0px);
  transition:box-shadow .28s ease;
}
/* Arriba: la marca se presenta, sin descriptor (el h1 ya lo dice).
   Al bajar: todo encoge, aparece el descriptor y la barra gana sombra. */
.nav.scrolled{box-shadow:0 3px 16px rgba(20,41,74,.13)}
.nav{--nav-py:15px;--nav-px:22px;--logo-h:66px;--brand-size:1.5rem}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:var(--nav-py) var(--nav-px);
  display:flex;align-items:center;gap:16px;
  transition:padding .28s ease;
}
.nav .logo{height:var(--logo-h);width:auto;display:block;transition:height .28s ease}
/* El encogido al bajar es un gesto de escritorio: en móvil la barra ya nace
   compacta y flotando, y cambiarle el alto movería el contenido de sitio. */
@media (min-width:901px){
  .nav.scrolled{--nav-py:7px;--logo-h:40px;--brand-size:1.12rem}
}
/* Con los seis enlaces en línea, el descriptor va justo de sitio: unos pocos
   píxeles aquí deciden si cabe entero o no llega a mostrarse. */
@media (min-width:1041px){
  .nav-inner{gap:12px}
  .nav .links a{padding:7px 10px}
  .nav .links a::after{left:10px;right:10px}
}
.nav .brand{display:flex;flex-direction:column;line-height:1.05;min-width:0}
.nav .brand .name{
  font-weight:800;color:var(--navy);font-size:var(--brand-size);letter-spacing:.2px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  transition:font-size .28s ease;
}
.nav .brand .tag{
  font-size:.76rem;color:var(--muted);white-space:nowrap;   /* nunca parte en dos */
  max-height:0;opacity:0;overflow:hidden;
  transition:max-height .28s ease,opacity .22s ease;
}
/* El descriptor aparece solo si de verdad cabe: la clase la pone un script
   que lo mide, porque su ancho depende de la tipografía del sistema y con
   una más ancha que Segoe UI se quedaba cortado a media palabra. */
.nav.scrolled.tag-cabe .brand .tag{max-height:1.6em;opacity:1;margin-top:3px}
/* Por debajo de 1100 px la barra va apretada: el descriptor es lo primero que sobra */
@media (max-width:1100px){
  .nav{--brand-size:1.25rem}          /* caben los seis enlaces, no el nombre entero */
  .nav.scrolled .brand .tag{max-height:0;opacity:0;margin-top:0}
}

.nav .spacer{flex:1}
.nav .links{display:flex;gap:8px;align-items:center}
.nav .links a{
  font-size:.92rem;font-weight:600;color:var(--charcoal);
  padding:7px 12px;border-radius:8px;position:relative;
  transition:color .15s ease,background .22s ease;
}
.nav .links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left center;transition:transform .22s ease;
}
.nav .links a:hover{color:var(--navy)}
.nav .links a:hover::after{transform:scaleX(1)}
/* Sección en la que está el visitante */
.nav .links a.active{background:var(--navy);color:#fff}
.nav .links a.active::after{transform:scaleX(0)}
/* Bloque de la derecha: tema, WhatsApp y (en móvil) el botón de menú. */
.nav-tools{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.btn-wa{
  font-size:.9rem;color:#fff;font-weight:700;background:#25D366;
  padding:9px 16px;border-radius:22px;display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
  flex:0 0 auto;
}
.btn-wa .wa-ico{width:17px;height:17px;flex:0 0 auto}
/* Botón de menú (hamburguesa): solo aparece cuando los enlaces no caben. */
.nav-burger{
  display:none;width:40px;height:40px;padding:0;flex:0 0 auto;
  background:transparent;border:0;border-radius:13px;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
  transition:background .15s ease,border-color .15s ease;
}
.nav-burger span{
  display:block;width:17px;height:2px;border-radius:2px;background:var(--charcoal);
  transition:transform .22s ease,opacity .18s ease;
}
.nav-burger.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-burger.open span:nth-child(2){opacity:0}
.nav-burger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.btn-wa{transition:background .15s ease,transform .15s ease,box-shadow .15s ease}
.btn-wa:hover{background:#1eb457;transform:translateY(-1px);box-shadow:0 6px 16px rgba(37,211,102,.35)}
.btn-wa:active{transform:translateY(0);box-shadow:none}

/* ======================= HERO (foto + overlay) ======================= */
.hero{
  position:relative;
  min-height:78vh;
  display:flex;align-items:center;
  color:#fff;
  background:
    linear-gradient(105deg,rgba(20,41,74,.90) 0%,rgba(20,41,74,.66) 46%,rgba(43,47,54,.45) 100%),
    url("img/edificio_concreto.webp") center/cover no-repeat;
}
/* svh = alto estable: no salta cuando el navegador esconde su barra */
@supports (min-height:100svh){ .hero{min-height:78svh} }
.hero-content{max-width:1200px;margin:0 auto;padding:70px 22px;width:100%}
.hero .eyebrow{
  text-transform:uppercase;letter-spacing:2.5px;font-size:.8rem;font-weight:700;
  color:#8fb5e6;margin:0 0 14px;
}
.hero h1{
  /* sin max-width y con clamp más contenido para que quepa en un solo renglón */
  margin:0 0 14px;font-size:clamp(1.9rem,4.4vw,3.2rem);font-weight:800;line-height:1.1;
}
.hero .hook{
  margin:0 0 20px;max-width:680px;
  font-size:clamp(1.05rem,2vw,1.4rem);font-weight:700;color:#fff;line-height:1.35;
  padding-left:14px;border-left:3px solid #8fc0f0;
}
.hero .lead{margin:0 0 28px;max-width:600px;font-size:1.12rem;color:#e2e9f4}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}
.btn-lg{
  font-size:.98rem;font-weight:700;padding:15px 28px;border-radius:12px;
  display:inline-flex;align-items:center;gap:8px;border:0;transition:.15s;
}
.btn-lg:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.22)}
.btn-lg:active{transform:translateY(0);box-shadow:0 2px 6px rgba(0,0,0,.20)}
.btn-solid{background:var(--accent);color:#fff}
.btn-solid:hover{background:#2a6099}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}

/* ======================= FRANJA KPIs ======================= */
.kpis{
  background:var(--navy);color:#fff;
}
.kpis .wrap{
  display:flex;justify-content:center;gap:52px;flex-wrap:wrap;
  padding:26px 22px;text-align:center;
}
.kpis .kpi b{display:block;font-size:1.5rem;font-weight:800}
.kpis .kpi span{font-size:.74rem;color:#a9bad4;text-transform:uppercase;letter-spacing:.8px}

/* ======================= SECCIONES genéricas ======================= */
.section{padding:66px 0}
.section.alt{background:var(--paper)}
.section-head{text-align:center;max-width:720px;margin:0 auto 40px}
.section-head .eyebrow{
  text-transform:uppercase;letter-spacing:2px;font-size:.78rem;font-weight:700;color:var(--accent);margin:0 0 8px;
}
.section-head h2{margin:0 0 10px;font-size:1.7rem;color:var(--navy);font-weight:800}
.section-head p{margin:0;color:var(--muted);font-size:1rem}

/* ======================= SERVICIOS ======================= */
.services{
  display:grid;gap:22px;
  /* min() para que el mínimo ceda en pantallas más angostas que él */
  grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));
}
.svc{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;box-shadow:var(--shadow);transition:transform .15s,box-shadow .15s;
}
.svc:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(20,41,74,.16)}
.svc .ico{
  width:52px;height:52px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;font-size:1.5rem;margin-bottom:16px;
}
.svc h3{margin:0 0 8px;font-size:1.12rem;color:var(--navy)}
.svc p{margin:0;color:var(--muted);font-size:.92rem}

/* --- Dictamen estructural: tarjeta destacada (ocupa toda la fila) --- */
.svc-feature{
  grid-column:1 / -1;
  display:flex;gap:22px;align-items:flex-start;
  border-color:var(--accent);
  scroll-margin-top:96px;            /* que la nav fija no la tape al anclar */
}
.svc-feature:hover{transform:none;box-shadow:var(--shadow)}
.svc-feature .ico{flex:0 0 auto;margin-bottom:0}
.svc-feature .svc-body{flex:1;min-width:0}
.svc-feature p{max-width:80ch}
.svc-badge{
  display:inline-block;vertical-align:middle;margin-left:10px;
  font-size:.68rem;font-weight:700;letter-spacing:.6px;text-transform:uppercase;
  color:var(--accent);background:rgba(47,111,176,.10);
  border:1px solid rgba(47,111,176,.35);border-radius:20px;padding:3px 10px;
}
.svc-feature .svc-lead{margin-bottom:10px;color:var(--navy);font-weight:700;font-size:1rem}
.svc-feature .svc-note{margin-top:12px;color:var(--accent);font-weight:600;font-size:.86rem}

/* --- Hero: línea de cobertura del dictamen --- */
.hero .coverage{
  display:inline-flex;align-items:baseline;gap:9px;
  margin:0 0 26px;padding-bottom:3px;
  color:#fff;font-size:1rem;font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.45);
  transition:border-color .15s;
}
.hero .coverage span{color:#8fc0f0;font-size:.9em}
.hero .coverage:hover{border-bottom-color:#fff}

/* ======================= PROYECTOS (tarjetas modelo) ======================= */
.section-sub{text-align:center;color:var(--muted);margin:-26px auto 34px;font-size:.95rem;max-width:640px}
.models{
  display:grid;gap:24px;
  grid-template-columns:repeat(auto-fill,minmax(min(340px,100%),1fr));
}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .15s ease,box-shadow .15s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(20,41,74,.16)}
.card .thumb{
  width:100%;aspect-ratio:4/3;object-fit:cover;background:#eaeef5;display:block;
  border-bottom:1px solid var(--line);transition:transform .45s ease;
}
.card:hover .thumb{transform:scale(1.045)}   /* la tarjeta ya recorta con overflow:hidden */
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1}
.card h3{margin:0 0 2px;font-size:1.12rem;color:var(--navy)}
.card .loc{color:var(--muted);font-size:.86rem;margin-bottom:12px}
.star{color:#e0a400}
.specs{display:grid;grid-template-columns:1fr 1fr;gap:8px 14px;margin:0 0 14px}
.spec{display:flex;flex-direction:column}
.spec label{font-size:.68rem;text-transform:uppercase;letter-spacing:.5px;color:var(--muted)}
.spec b{font-size:.95rem;color:var(--ink);font-weight:600}
.card-foot{margin-top:auto;display:flex;gap:12px;align-items:flex-end;justify-content:space-between}
.actions{display:flex;flex-wrap:wrap;gap:8px}
.btn{
  font-size:.83rem;font-weight:600;padding:9px 13px;border-radius:11px;border:0;
  cursor:pointer;white-space:nowrap;
  transition:background .15s ease,color .15s ease,transform .15s ease,box-shadow .15s ease;
}
.btn:hover{transform:translateY(-1px);box-shadow:0 4px 10px rgba(20,41,74,.18)}
.btn:active{transform:translateY(0);box-shadow:none}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:var(--navy-2)}
.btn-outline{background:#fff;color:var(--navy)}
.btn-outline:hover{background:var(--paper)}
.qr-box{text-align:center;flex-shrink:0}
.qr-box img{width:78px;height:78px;display:block;border:1px solid var(--line);border-radius:8px}
.qr-box span{font-size:.62rem;color:var(--muted);display:block;margin-top:3px;max-width:78px}

/* ======================= PERFIL ======================= */
.profile{display:grid;grid-template-columns:0.78fr 1.22fr;gap:48px;align-items:center}
.profile .photos{position:relative}
.profile .photos .main{
  width:100%;border-radius:var(--radius);box-shadow:var(--shadow);display:block;
  aspect-ratio:4/4.5;object-fit:cover;object-position:center top;
}
.profile .photos .mini{
  position:absolute;right:-14px;bottom:-18px;width:42%;
  border-radius:12px;border:4px solid #fff;box-shadow:0 8px 24px rgba(20,41,74,.22);
  aspect-ratio:4/3;object-fit:cover;
}
.profile h2{margin:0 0 6px;font-size:1.7rem;color:var(--navy);font-weight:800}
.profile .role{color:var(--accent);font-weight:700;font-size:.98rem;margin:0 0 16px}
.profile p{margin:0 0 14px;color:#3a4048;font-size:1rem}
.profile ul{margin:10px 0 0;padding:0;list-style:none;display:grid;gap:17px}
.profile li{position:relative;padding-left:26px;color:#3a4048;font-size:.96rem}
.profile li::before{content:"▸";position:absolute;left:2px;color:var(--accent);font-weight:800}
/* Cada punto abre con su concepto: es lo que hace legible una lista larga */
.profile li b{color:var(--navy);font-weight:700}
html[data-theme="dark"] .profile li b{color:#e6ebf2}

/* ======================= MÉTODO ======================= */
.method{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.method .shot{
  width:100%;border-radius:var(--radius);box-shadow:var(--shadow);
  aspect-ratio:16/10;object-fit:cover;display:block;
}
.method h2{margin:0 0 6px;font-size:1.7rem;color:var(--navy);font-weight:800}
.method .role{color:var(--accent);font-weight:700;font-size:.98rem;margin:0 0 18px}
.steps{margin:0;padding:0;list-style:none;counter-reset:step;display:grid;gap:16px}
.steps li{position:relative;padding-left:52px;min-height:38px}
.steps li::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:0;top:0;width:38px;height:38px;border-radius:50%;
  background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;
}
.steps li b{display:block;color:var(--navy);font-size:1rem}
.steps li span{color:var(--muted);font-size:.92rem}

/* ======================= CONTACTO ======================= */
.contact-band{
  background:
    linear-gradient(135deg,rgba(20,41,74,.94) 0%,rgba(43,47,54,.88) 100%),
    url("img/planos.webp") center/cover no-repeat;
  color:#fff;text-align:center;
}
.contact-band .wrap{padding:58px 22px}
.contact-band h2{margin:0 0 12px;font-size:1.7rem;font-weight:800}
.contact-band p{margin:0 0 24px;max-width:560px;color:#dbe3f0}
/* Dos columnas: los canales a la izquierda, el QR con peso propio a la derecha */
.contact-inner{
  display:grid;grid-template-columns:1.35fr .65fr;gap:48px;align-items:center;text-align:left;
}
.contact-actions{display:flex;gap:14px;flex-wrap:wrap}
.contact-qr{display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center}
.contact-qr img{
  width:170px;height:170px;background:#fff;padding:11px;border-radius:14px;
  box-shadow:0 8px 26px rgba(0,0,0,.32);
}
.contact-qr span{font-size:.82rem;color:#dbe3f0;max-width:210px;line-height:1.5}
.contact-qr b{color:#fff;font-size:.9rem}

@media (max-width:820px){
  .contact-inner{grid-template-columns:1fr;gap:38px;text-align:center}
  .contact-band p{margin-left:auto;margin-right:auto}
  .contact-actions{justify-content:center}
}

/* ======================= FOOTER ======================= */
.site-footer{background:var(--charcoal);color:#c7ccd4;padding:54px 0 0;font-size:.88rem}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1.25fr 1fr;gap:38px;padding-bottom:40px;
}
/* --- bloque de marca --- */
.f-logo{height:56px;width:auto;display:block;background:#fff;padding:7px;border-radius:10px}
.f-name{margin:15px 0 6px;color:#fff;font-weight:800;font-size:1.06rem}
.f-tag{margin:0 0 18px;color:#9aa2ad;line-height:1.55;max-width:34ch}
.f-social{display:flex;gap:10px;margin-bottom:10px}
.f-social .soc{
  width:36px;height:36px;border-radius:9px;border:1px solid #454c56;color:#c7ccd4;
  display:flex;align-items:center;justify-content:center;
}
.f-social .soc svg{width:18px;height:18px}
.f-social .soc.off{opacity:.40;cursor:default}          /* aún no existe: no es clicable */
.f-social a.soc{transition:background .15s ease,color .15s ease,transform .15s ease}
.f-social a.soc:hover{background:#3b424c;color:#fff;transform:translateY(-2px)}
/* --- columnas de enlaces --- */
.f-col{display:flex;flex-direction:column;align-items:flex-start;gap:11px}
.f-col h3{
  margin:0 0 4px;font-size:.74rem;text-transform:uppercase;letter-spacing:1.3px;
  color:#fff;font-weight:700;
}
.f-col a{color:#c7ccd4;transition:color .15s ease}
.f-col a:hover{color:#fff;text-decoration:underline}
.f-wa{color:#7fe0a3;font-weight:600}
.f-item{color:#c7ccd4}
.f-soon{color:#7b828c;font-style:italic;font-size:.84rem}
/* --- franja inferior --- */
.f-bottom{border-top:1px solid #3b4047;padding:22px 22px 32px;text-align:center}
.f-bottom p{margin:0}
.f-bottom .disc{margin:10px auto 0;max-width:720px;font-size:.76rem;color:#8b929c}
.site-footer .link{color:#8fc0f0}
.site-footer .link:hover{color:#fff}

@media (max-width:900px){ .footer-grid{grid-template-columns:1fr 1fr;gap:34px} }
@media (max-width:560px){ .footer-grid{grid-template-columns:1fr;gap:30px} }

/* ======================= RESPONSIVE ======================= */
@media (max-width:860px){
  .profile{grid-template-columns:1fr;gap:56px}
  .profile .photos{max-width:420px;margin:0 auto}
  .method{grid-template-columns:1fr;gap:26px}
}
@media (max-width:680px){
  .svc-feature{flex-direction:column;gap:0}
  .svc-feature .ico{margin-bottom:16px}
  .hero{min-height:66vh}
  .kpis .wrap{gap:28px}
}

/* ======================= ENLACE DE VERIFICACIÓN ======================= */
.verify-link{color:var(--accent);font-weight:600;white-space:nowrap}
.verify-link:hover{text-decoration:underline}

/* ======================= BOTÓN DE TEMA ======================= */
.theme-toggle{
  background:transparent;border:0;border-radius:50%;
  width:40px;height:40px;cursor:pointer;font-size:1.05rem;line-height:1;
  display:inline-flex;align-items:center;justify-content:center;color:var(--charcoal);
  transition:background .15s,border-color .15s;
}
.theme-toggle:hover{background:var(--paper)}

/* ======================= MODO OSCURO =======================
   Se activa con html[data-theme="dark"]. Un script fija el tema inicial según
   la preferencia guardada o la del sistema (prefers-color-scheme), y el botón
   🌙/☀️ lo alterna. */
html[data-theme="dark"]{
  --ink:#e6ebf2;
  --paper:#10171f;        /* fondo de secciones alternas */
  --line:#273241;
  --muted:#97a3b3;
  --accent:#5a97db;       /* acento más brillante para fondo oscuro */
  --shadow:0 6px 22px rgba(0,0,0,.5);
  background:#0d141c;
}
html[data-theme="dark"] body{background:#0d141c;color:var(--ink)}

/* nav */
html[data-theme="dark"] .nav{background:rgba(15,22,30,.94);border-bottom-color:var(--line)}
html[data-theme="dark"] .nav .brand .name{color:#e6ebf2}
html[data-theme="dark"] .nav .links a{color:#c3cdda}
html[data-theme="dark"] .nav .links a:hover{color:#fff}
html[data-theme="dark"] .nav .links a.active{background:var(--accent);color:#0d141c}
html[data-theme="dark"] .nav .logo{background:#fff;padding:7px;border-radius:10px}  /* insignia blanca: el trazo es oscuro y sobre fondo oscuro no se leería */
html[data-theme="dark"] .theme-toggle{color:#e6ebf2;border-color:#3a4b60}
html[data-theme="dark"] .theme-toggle:hover{background:#1c2634}
html[data-theme="dark"] .nav-burger{border-color:#3a4b60}
html[data-theme="dark"] .nav-burger span{background:#e6ebf2}   /* sobre barra oscura el gris carbón no se vería */
html[data-theme="dark"] .nav-burger:hover{background:#1c2634}

/* superficies claras → oscuras */
html[data-theme="dark"] .card,
html[data-theme="dark"] .svc{background:#151d28;border-color:var(--line)}
html[data-theme="dark"] .card .thumb{background:#0f1620;border-bottom-color:var(--line)}
html[data-theme="dark"] .section.alt{background:#10171f}

/* títulos y textos */
html[data-theme="dark"] .section-head h2,
html[data-theme="dark"] .card h3,
html[data-theme="dark"] .svc-feature .svc-lead,
html[data-theme="dark"] .svc h3,
html[data-theme="dark"] .profile h2,
html[data-theme="dark"] .method h2,
html[data-theme="dark"] .steps li b,
html[data-theme="dark"] .spec b{color:#e6ebf2}
html[data-theme="dark"] .profile p,
html[data-theme="dark"] .profile li{color:#c7d1de}

/* insignia del dictamen */
html[data-theme="dark"] .svc-badge{background:rgba(90,151,219,.12);border-color:rgba(90,151,219,.40)}

/* botones */
html[data-theme="dark"] .btn-outline{background:#151d28;color:#cdd8e6;border-color:#3a4b60}
html[data-theme="dark"] .btn-outline:hover{background:#1c2634}
html[data-theme="dark"] .btn-primary{background:#24476f;border-color:#24476f}
html[data-theme="dark"] .btn-primary:hover{background:#2d5787}

/* QR: fondo blanco para que siga escaneando sobre tarjeta oscura */
html[data-theme="dark"] .qr-box img{background:#fff;padding:4px}



/* ======================= APARICIÓN AL BAJAR =======================
   La clase .anim la pone el script del <head> solo si el sistema NO pide
   menos movimiento. Sin JS no se agrega, así que el contenido se ve siempre. */
html.anim .kpi,
html.anim .section-head,
html.anim .svc,
html.anim .card,
html.anim .method .shot,
html.anim .method .text,
html.anim .profile .photos,
html.anim .profile .text,
html.anim .contact-qr{
  transition:opacity .5s ease,transform .5s ease;
}
html.anim .kpi:not(.is-visible),
html.anim .section-head:not(.is-visible),
html.anim .svc:not(.is-visible),
html.anim .card:not(.is-visible),
html.anim .method .shot:not(.is-visible),
html.anim .method .text:not(.is-visible),
html.anim .profile .photos:not(.is-visible),
html.anim .profile .text:not(.is-visible),
html.anim .contact-qr:not(.is-visible){
  opacity:0;transform:translateY(14px);
}

/* Quien pide menos movimiento en su sistema, no lo recibe */
@media (prefers-reduced-motion:reduce){
  .nav,.nav-inner,.nav .logo,.nav .brand .name,.nav .brand .tag,
  .card,.card .thumb,.btn,.btn-lg,.btn-wa,.nav .links a::after{transition:none}
  .card:hover,.btn:hover,.btn-lg:hover,.btn-wa:hover,
  .theme-toggle:hover,.nav-burger:hover,.hero .coverage:hover{transform:none}
  .card:hover .thumb{transform:none}
}


/* ===================================================================
   MÓVIL Y TABLET — legibilidad y respiración
   Las reglas van al final a propósito: ajustan espaciado y tamaños,
   no colores, así que conviven con el modo oscuro de arriba.
   =================================================================== */

/* ---------- Menú desplegable (cuando los enlaces ya no caben) ----------
   El corte es 1040 px porque ahí dejan de caber los seis enlaces junto a la
   marca y los botones; el cristal, en cambio, llega solo hasta 900 px. */
@media (max-width:1040px){
  .nav{--logo-h:50px;--brand-size:1.22rem;--nav-py:10px;--nav-px:16px}
  .nav-burger{display:flex}
  .nav .links{
    display:none;                       /* .open lo muestra */
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    padding:10px 16px 16px;
    background:var(--white);
    border-bottom:1px solid var(--line);
    box-shadow:0 16px 28px rgba(20,41,74,.16);
  }
  .nav .links.open{display:flex}
  .nav .links a{padding:13px 14px;font-size:1rem;border-radius:10px}
  .nav .links a::after{display:none}    /* el subrayado es un gesto de escritorio */
  .nav .links a:hover{background:var(--paper)}
  html[data-theme="dark"] .nav .links{
    background:#0f161e;box-shadow:0 16px 28px rgba(0,0,0,.55);
  }
  html[data-theme="dark"] .nav .links a:hover{background:#1c2634}
}

/* ---------- Barra: en pantallas angostas WhatsApp queda como ícono ---------- */
@media (max-width:620px){
  .nav-tools{gap:7px}
  .btn-wa{width:40px;height:40px;padding:0;border-radius:50%;justify-content:center;gap:0}
  .btn-wa .btn-wa-txt{display:none}     /* el ícono ya dice qué es; el texto se cortaba */
  .btn-wa .wa-ico{width:19px;height:19px}
  .theme-toggle{width:40px;height:40px;font-size:1rem}
  .nav-inner{gap:10px}
}

@media (max-width:680px){
  [id]{scroll-margin-top:78px}
  .wrap{padding:0 18px}

  /* ---------- Hero: menos apretado, renglones más cortos ---------- */
  .hero{min-height:0}
  @supports (min-height:100svh){ .hero{min-height:62svh} }
  .hero-content{padding:48px 18px 54px}
  .hero .eyebrow{font-size:.72rem;letter-spacing:1.6px;margin-bottom:12px}
  .hero h1{font-size:clamp(1.7rem,7.6vw,2.3rem);line-height:1.18;margin-bottom:16px}
  .hero .hook{
    font-size:1.02rem;line-height:1.45;padding-left:13px;margin-bottom:22px;
  }
  .hero .lead{font-size:.99rem;line-height:1.68;color:#dde6f3;margin-bottom:24px}
  .brk{display:none}                    /* el salto forzado sobra en pantalla angosta */
  /* El subrayado se estiraba de borde a borde al partirse en dos renglones:
     en móvil funciona mejor como recuadro. */
  .hero .coverage{
    display:flex;align-items:flex-start;border-bottom:0;
    background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.30);
    border-radius:11px;padding:11px 14px;
    font-size:.93rem;line-height:1.45;margin-bottom:26px;
  }
  .hero .coverage:hover{border-color:rgba(255,255,255,.55)}
  .hero .cta{gap:10px}
  .hero .cta .btn-lg{flex:1 1 46%;justify-content:center;padding:14px 18px}

  /* ---------- Franja de cifras: una por renglón, con separador ---------- */
  .kpis .wrap{display:grid;grid-template-columns:1fr;gap:0;padding:8px 18px 14px}
  .kpis .kpi{padding:14px 0;border-top:1px solid rgba(255,255,255,.13)}
  .kpis .kpi:first-child{border-top:0}
  .kpis .kpi b{font-size:1.28rem}
  .kpis .kpi span{font-size:.7rem}

  /* ---------- Secciones: más aire entre bloques ---------- */
  .section{padding:48px 0}
  .section-head{margin-bottom:28px}
  .section-head h2,.profile h2,.method h2,.contact-band h2{font-size:1.45rem}
  .section-head p{font-size:.96rem;line-height:1.62}
  .section-sub{margin:-16px auto 26px;font-size:.94rem;line-height:1.62}

  /* ---------- Tarjetas de servicio ---------- */
  .services{gap:16px}
  .svc{padding:22px 18px}
  .svc .ico{width:46px;height:46px;font-size:1.3rem;margin-bottom:13px}
  .svc h3{font-size:1.06rem;line-height:1.32}
  .svc p{font-size:.95rem;line-height:1.66}
  .svc-badge{margin-left:0;margin-top:6px;display:inline-block}
  .svc-feature .svc-lead{font-size:.98rem;line-height:1.5}

  /* ---------- Proyectos ---------- */
  .models{gap:18px}
  .card-body{padding:16px 16px 18px}
  .card h3{font-size:1.06rem;line-height:1.32}
  .specs{gap:10px 14px;margin-bottom:16px}
  .spec b{font-size:.92rem}
  .card-foot{gap:14px}
  .btn{padding:10px 14px;font-size:.85rem}   /* objetivo táctil cómodo */
  .qr-box img{width:70px;height:70px}
  .qr-box span{max-width:70px;font-size:.6rem}

  /* ---------- Perfil y método ---------- */
  .profile{gap:44px}
  .profile p{font-size:.99rem;line-height:1.68;margin-bottom:16px}
  .profile li{font-size:.96rem;line-height:1.6}
  .profile ul{gap:13px}
  .method .role,.profile .role{font-size:.94rem}
  .steps{gap:18px}
  .steps li{padding-left:48px}
  .steps li span{font-size:.94rem;line-height:1.62}

  /* ---------- Contacto ---------- */
  .contact-band .wrap{padding:44px 18px}
  .contact-band p{font-size:.99rem;line-height:1.66}
  .contact-actions{gap:10px;width:100%}
  .contact-actions .btn-lg{flex:1 1 100%;justify-content:center}
  .contact-qr img{width:150px;height:150px}

  /* ---------- Pie ---------- */
  .site-footer{padding-top:40px}
  .footer-grid{padding-bottom:32px}
  .f-bottom{padding:20px 18px calc(28px + env(safe-area-inset-bottom,0px))}
  .f-bottom .disc{font-size:.74rem;line-height:1.6}
}

/* Pantallas muy angostas: los botones del hero pasan a renglón completo */
/* Pantallas muy angostas: la barra se aprieta para que el nombre no se corte */
@media (max-width:400px){
  .nav{--nav-px:14px;--logo-h:40px;--brand-size:1rem}
  .nav-inner{gap:8px}
  .nav-tools{gap:6px}
  .theme-toggle,.nav-burger,.btn-wa{width:38px;height:38px}
}
/* Pantallas de 320 px (iPhone SE antiguo): un punto más de holgura */
@media (max-width:345px){
  .nav{--logo-h:36px;--brand-size:.82rem}
}


/* ===================================================================
   LIQUID GLASS — barra, menú y controles
   La barra sale del flujo y flota sobre el contenido: el material solo se
   lee como cristal si hay algo pasando por detrás. El alto lo mide un
   script y lo deja en --nav-h, para que el hero sepa cuánto despejar; se
   mide en reposo, porque al bajar la barra encoge y el hero no debe
   moverse por eso.
   =================================================================== */
.nav{
  --float-top:12px;      /* separación del borde superior */
  --float-side:16px;     /* aire a los costados */
  --nav-radius:26px;
  --nav-max:1264px;
  position:fixed;left:0;right:0;
  top:calc(var(--float-top) + env(safe-area-inset-top,0px));
  margin:0 auto;padding-top:0;
  width:calc(100% - var(--float-side)*2);
  max-width:var(--nav-max);
  border:0;border-radius:var(--nav-radius);
  background:linear-gradient(180deg,rgba(255,255,255,.72),rgba(255,255,255,.55));
  -webkit-backdrop-filter:blur(30px) saturate(185%);
          backdrop-filter:blur(30px) saturate(185%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.92),      /* brillo especular del canto superior */
    inset 0 0 0 1px rgba(255,255,255,.42),    /* borde del cristal */
    inset 0 -10px 20px rgba(255,255,255,.16), /* rebote de luz en la base */
    0 12px 34px rgba(20,41,74,.20),
    0 2px 8px rgba(20,41,74,.10);
  transition:background .3s ease,box-shadow .3s ease;
}
/* Reflejo diagonal: es lo que separa el cristal del simple desenfoque */
.nav::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(118deg,
    rgba(255,255,255,.50) 0%,rgba(255,255,255,0) 38%,
    rgba(255,255,255,0) 64%,rgba(255,255,255,.20) 100%);
  mix-blend-mode:overlay;
}
.nav-inner{position:relative;z-index:1}   /* el contenido va sobre el reflejo */
.nav.scrolled{
  background:linear-gradient(180deg,rgba(255,255,255,.80),rgba(255,255,255,.64));
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.95),
    inset 0 0 0 1px rgba(255,255,255,.48),
    inset 0 -10px 20px rgba(255,255,255,.18),
    0 14px 38px rgba(20,41,74,.26),
    0 2px 8px rgba(20,41,74,.12);
}
/* El hero pasa por debajo; hay que despejarle el alto de la barra */
.hero{padding-top:calc(var(--nav-h,97px) + 26px)}
[id]{scroll-margin-top:96px}

/* En el teléfono la barra se pega más a los bordes y redondea menos */
@media (max-width:900px){
  .nav{--float-top:9px;--float-side:10px;--nav-radius:22px;--nav-max:none}
  .hero{padding-top:calc(var(--nav-h,70px) + 20px)}
  [id]{scroll-margin-top:calc(var(--nav-h,70px) + 26px)}
}
@media (max-width:345px){ .nav{--float-side:6px} }

/* Enlaces de la barra en escritorio: sobre cristal, el activo va traslúcido */
@media (min-width:1041px){
  .nav .links a.active{
    background:linear-gradient(180deg,rgba(20,41,74,.94),rgba(20,41,74,.86));
    box-shadow:inset 0 1px 0 rgba(255,255,255,.24),0 4px 12px rgba(20,41,74,.30);
  }
  .nav .links a:hover{background:rgba(255,255,255,.42)}
  html[data-theme="dark"] .nav .links a.active{
    background:linear-gradient(180deg,rgba(90,151,219,.95),rgba(70,126,190,.90));
    box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 4px 12px rgba(0,0,0,.35);
  }
  html[data-theme="dark"] .nav .links a:hover{background:rgba(255,255,255,.10)}
}

/* ---------- El menú desplegable, una lámina de cristal suspendida ---------- */
@media (max-width:1040px){
  .nav .links{
    top:calc(100% + 9px);
    border:0;border-radius:20px;padding:10px;
    background:linear-gradient(180deg,rgba(255,255,255,.975),rgba(255,255,255,.94));
    -webkit-backdrop-filter:blur(44px) saturate(175%);
            backdrop-filter:blur(44px) saturate(175%);
    box-shadow:
      inset 0 1px 0 rgba(255,255,255,.95),
      inset 0 0 0 1px rgba(255,255,255,.45),
      0 18px 42px rgba(20,41,74,.26);
  }
  .nav .links a{border-radius:14px}
  .nav .links a:hover{background:rgba(255,255,255,.55)}
  .nav .links a.active{
    background:rgba(20,41,74,.92);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.22),0 4px 12px rgba(20,41,74,.35);
  }
  html[data-theme="dark"] .nav .links{
    background:linear-gradient(180deg,rgba(34,45,60,.95),rgba(15,22,30,.91));
    box-shadow:
      inset 0 1px 0 rgba(255,255,255,.22),
      inset 0 0 0 1px rgba(255,255,255,.13),
      0 20px 44px rgba(0,0,0,.66);
  }
  html[data-theme="dark"] .nav .links a:hover{background:rgba(255,255,255,.10)}
  html[data-theme="dark"] .nav .links a.active{
    background:var(--accent);color:#0d141c;
    box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 4px 12px rgba(0,0,0,.4);
  }
}

/* ---------- Modo oscuro: el mismo material, con luz tenue ---------- */
html[data-theme="dark"] .nav{
  background:linear-gradient(180deg,rgba(34,45,60,.70),rgba(15,22,30,.58));
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.24),
    inset 0 0 0 1px rgba(255,255,255,.13),
    inset 0 -10px 20px rgba(255,255,255,.05),
    0 14px 38px rgba(0,0,0,.55);
}
html[data-theme="dark"] .nav.scrolled{
  background:linear-gradient(180deg,rgba(34,45,60,.80),rgba(15,22,30,.68));
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.26),
    inset 0 0 0 1px rgba(255,255,255,.15),
    0 16px 42px rgba(0,0,0,.62);
}
html[data-theme="dark"] .nav::before{
  background:linear-gradient(118deg,
    rgba(255,255,255,.22) 0%,rgba(255,255,255,0) 38%,
    rgba(255,255,255,0) 64%,rgba(255,255,255,.10) 100%);
}
/* Sin backdrop-filter no hay cristal: se vuelve a un fondo sólido legible */
@supports not ((backdrop-filter:blur(4px)) or (-webkit-backdrop-filter:blur(4px))){
  .nav{background:rgba(255,255,255,.97)}
  .nav.scrolled{background:rgba(255,255,255,.98)}
  .nav .links{background:var(--white)}
  html[data-theme="dark"] .nav,
  html[data-theme="dark"] .nav.scrolled{background:rgba(15,22,30,.97)}
  html[data-theme="dark"] .nav .links{background:#0f161e}
  .hero .coverage,.btn-ghost{background:rgba(255,255,255,.16)}
}

/* ===================================================================
   MATERIAL DE CRISTAL EN TARJETAS, ICONOS Y PASOS  (móvil y escritorio)
   Estos elementos van sobre fondos planos, así que el desenfoque solo
   no se nota: lo que da el material es el canto iluminado, el aro, el
   relleno en degradado y el reflejo diagonal. Para que el desenfoque
   tenga algo que hacer, las secciones llevan un tinte muy tenue detrás.
   =================================================================== */
:root{
  --glass-top:rgba(255,255,255,.95);      /* brillo especular del canto superior */
  /* El aro no puede ser blanco: sobre fondo claro no se vería. Lleva el tinte
     del azul de marca, que es lo que dibuja el canto del cristal. */
  --glass-edge:rgba(20,41,74,.12);
  --glass-fill:linear-gradient(162deg,rgba(255,255,255,.88),rgba(255,255,255,.68));
  --glass-soft:linear-gradient(160deg,rgba(20,41,74,.055),rgba(20,41,74,.018));
  --glass-lift:0 10px 30px rgba(20,41,74,.12),0 2px 6px rgba(20,41,74,.06);
  --glass-lift-hi:0 18px 44px rgba(20,41,74,.20),0 3px 10px rgba(20,41,74,.10);
  --glass-sheen:linear-gradient(118deg,
      rgba(255,255,255,.45) 0%,rgba(255,255,255,0) 40%,
      rgba(255,255,255,0) 66%,rgba(255,255,255,.18) 100%);
  --glass-deep:linear-gradient(158deg,rgba(79,140,203,.96),rgba(20,41,74,.94));
  --tint-a:rgba(47,111,176,.08);
  --tint-b:rgba(47,111,176,.06);
}
html[data-theme="dark"]{
  --glass-top:rgba(255,255,255,.20);
  --glass-edge:rgba(255,255,255,.13);
  --glass-fill:linear-gradient(162deg,rgba(46,61,81,.80),rgba(20,29,40,.66));
  --glass-soft:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.03));
  --glass-lift:0 12px 32px rgba(0,0,0,.44),0 2px 8px rgba(0,0,0,.30);
  --glass-lift-hi:0 20px 48px rgba(0,0,0,.58),0 3px 10px rgba(0,0,0,.36);
  --glass-sheen:linear-gradient(118deg,
      rgba(255,255,255,.16) 0%,rgba(255,255,255,0) 40%,
      rgba(255,255,255,0) 66%,rgba(255,255,255,.07) 100%);
  --glass-deep:linear-gradient(158deg,rgba(90,151,219,.85),rgba(16,32,56,.92));
  --tint-a:rgba(90,151,219,.10);
  --tint-b:rgba(90,151,219,.07);
}

/* Tinte de fondo: le da al cristal algo que refractar sin cambiar el color */
.section{position:relative;isolation:isolate}
.section::before{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(680px 420px at 12% 0%,var(--tint-a),transparent 62%),
    radial-gradient(560px 380px at 92% 80%,var(--tint-b),transparent 62%);
}

/* ---------- Tarjetas de servicio y de proyecto ---------- */
.svc,.card{
  position:relative;border:0;
  background:var(--glass-fill);
  /* Blur moderado: detrás de la tarjeta solo hay un degradado, así que el
     desenfoque aporta poco y sí cuesta al desplazar en el móvil. */
  -webkit-backdrop-filter:blur(10px) saturate(160%);
          backdrop-filter:blur(10px) saturate(160%);
  box-shadow:
    inset 0 1px 0 var(--glass-top),
    inset 0 0 0 1px var(--glass-edge),
    var(--glass-lift);
}
.svc:hover,.card:hover{
  box-shadow:
    inset 0 1px 0 var(--glass-top),
    inset 0 0 0 1px var(--glass-edge),
    var(--glass-lift-hi);
}
.svc-feature{box-shadow:
  inset 0 1px 0 var(--glass-top),
  inset 0 0 0 1px rgba(47,111,176,.45),
  var(--glass-lift)}
.svc-feature:hover{box-shadow:
  inset 0 1px 0 var(--glass-top),
  inset 0 0 0 1px rgba(47,111,176,.45),
  var(--glass-lift)}
/* El reflejo va sobre la tarjeta de servicio entera; en la de proyecto solo
   sobre los datos, para no aclarar la foto del modelo. */
.svc::before,.card-body::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:var(--glass-sheen);mix-blend-mode:overlay;
}
.svc>*,.card-body>*{position:relative}
.card-body{position:relative}
.card .thumb{border-bottom:1px solid var(--glass-edge)}

/* ---------- Iconos y números: cristal teñido de azul ---------- */
.svc .ico,.steps li::before{
  background:var(--glass-deep);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.50),
    inset 0 0 0 1px rgba(255,255,255,.24),
    0 6px 16px rgba(20,41,74,.30);
}

/* ---------- Ficha de datos del modelo: lámina interior ---------- */
.specs{
  background:var(--glass-soft);
  border-radius:12px;padding:13px 14px;
  box-shadow:inset 0 0 0 1px var(--glass-edge);
}


.qr-box img{
  border:0;background:#fff;padding:5px;
  box-shadow:inset 0 0 0 1px var(--glass-edge),0 4px 12px rgba(20,41,74,.16);
}


/* ===================================================================
   BOTONES DE CRISTAL — canto refractante
   El acabado tiene tres capas, y es la del medio la que da el efecto:
     ::before  cuerpo del cristal (relleno + desenfoque del fondo)
     ::after   canto: un anillo que vuelve a desenfocar y SATURA lo que
               hay detrás, de modo que el borde recoge el color del fondo
               como lo haría una lente; el brillo recorre el anillo en
               diagonal, fuerte en dos esquinas opuestas y apagado en el
               resto, en vez del aro uniforme de antes.
   Los pseudos van en z-index negativo dentro del propio botón, así que
   quedan detrás del texto sin necesidad de envolverlo.
   =================================================================== */
:root{
  --ring-hi:rgba(255,255,255,.88);   /* esquinas iluminadas del canto */
  --ring-mid:rgba(20,41,74,.15);     /* grosor del cristal en el resto */
}
html[data-theme="dark"]{
  --ring-hi:rgba(255,255,255,.58);
  --ring-mid:rgba(255,255,255,.05);
}

.btn-wa,.theme-toggle,.nav-burger,.btn-lg,.btn,.hero .coverage{
  --ring-w:4px;
  --body:linear-gradient(180deg,rgba(255,255,255,.30),rgba(255,255,255,.12));
  --lift:0 6px 18px rgba(20,41,74,.20);
  --lift-hi:0 12px 28px rgba(20,41,74,.30);
  position:relative;isolation:isolate;z-index:0;
  background:transparent;border-color:transparent;
  box-shadow:var(--lift);
  transition:transform .16s ease,box-shadow .22s ease;
}
.btn-wa::before,.theme-toggle::before,.nav-burger::before,
.btn-lg::before,.btn::before,.hero .coverage::before{
  content:"";position:absolute;inset:0;border-radius:inherit;z-index:-2;
  background:var(--body);
  -webkit-backdrop-filter:blur(7px) saturate(175%);
          backdrop-filter:blur(7px) saturate(175%);
  /* luz que rebota en la base, como en el cristal grueso */
  box-shadow:inset 0 -8px 14px -8px rgba(255,255,255,.45);
}
.btn-wa::after,.theme-toggle::after,.nav-burger::after,
.btn-lg::after,.btn::after,.hero .coverage::after{
  content:"";position:absolute;inset:0;border-radius:inherit;z-index:-1;
  padding:var(--ring-w);
  background:linear-gradient(138deg,
    var(--ring-hi) 0%,var(--ring-mid) 30%,
    var(--ring-mid) 66%,var(--ring-hi) 100%);
  -webkit-backdrop-filter:blur(6px) brightness(1.13) saturate(225%);
          backdrop-filter:blur(6px) brightness(1.13) saturate(225%);
  /* deja solo el anillo: el relleno se recorta con las dos máscaras */
  -webkit-mask-image:linear-gradient(#000,#000),linear-gradient(#000,#000);
  -webkit-mask-clip:content-box,border-box;
  -webkit-mask-composite:xor;
          mask-image:linear-gradient(#000,#000),linear-gradient(#000,#000);
          mask-clip:content-box,border-box;
          mask-composite:exclude;
}
.btn-wa:hover,.theme-toggle:hover,.nav-burger:hover,
.btn-lg:hover,.btn:hover,.hero .coverage:hover{
  transform:translateY(-2px);box-shadow:var(--lift-hi);
}
.btn-wa:active,.theme-toggle:active,.nav-burger:active,
.btn-lg:active,.btn:active{transform:translateY(0) scale(.985);box-shadow:var(--lift)}

/* ---------- Variantes ---------- */
.btn-wa,.btn-wa-cta{
  --body:linear-gradient(180deg,#3ce884,#1ab955);
  --ring-mid:rgba(255,255,255,.20);
  --lift:0 5px 16px rgba(37,211,102,.32);
  --lift-hi:0 10px 26px rgba(37,211,102,.44);
  color:#fff;
}
.btn-solid{
  --body:linear-gradient(180deg,#5596d6,#2a68a8);
  --ring-mid:rgba(255,255,255,.18);
  --lift:0 6px 20px rgba(20,41,74,.38);
  --lift-hi:0 12px 30px rgba(20,41,74,.48);
  color:#fff;
}
.btn-primary{
  --ring-w:3px;
  --body:linear-gradient(180deg,#2c619d,#16305a);
  --ring-mid:rgba(255,255,255,.16);
  --lift:0 5px 16px rgba(20,41,74,.35);
  --lift-hi:0 10px 24px rgba(20,41,74,.45);
  color:#fff;
}
.hero .coverage{
  /* Geometría propia: sin esto hereda la del subrayado original, que no
     tiene redondeo ni aire lateral y deja la última letra contra el canto. */
  border-radius:18px;padding:12px 20px;border-bottom:0;
}
.btn-ghost,.hero .coverage{
  --body:linear-gradient(180deg,rgba(255,255,255,.24),rgba(255,255,255,.09));
  --ring-hi:rgba(255,255,255,.92);
  --ring-mid:rgba(255,255,255,.14);
  --lift:0 6px 20px rgba(0,0,0,.28);
  --lift-hi:0 12px 30px rgba(0,0,0,.36);
  color:#fff;
}
.btn-outline{
  --ring-w:3px;
  --body:linear-gradient(180deg,rgba(255,255,255,.38),rgba(255,255,255,.14));
  --ring-mid:rgba(20,41,74,.26);     /* sobre tarjeta blanca el canto claro se pierde */
  color:var(--navy);
}
html[data-theme="dark"] .btn-outline{
  --body:linear-gradient(180deg,rgba(255,255,255,.13),rgba(255,255,255,.04));
  color:#cdd8e6;
}
.theme-toggle,.nav-burger{
  --ring-w:3px;
  --body:linear-gradient(180deg,rgba(255,255,255,.34),rgba(255,255,255,.12));
  --lift:0 4px 12px rgba(20,41,74,.18);
  --lift-hi:0 8px 20px rgba(20,41,74,.26);
  color:var(--charcoal);
}
html[data-theme="dark"] .theme-toggle,
html[data-theme="dark"] .nav-burger{
  --body:linear-gradient(180deg,rgba(255,255,255,.16),rgba(255,255,255,.05));
  --lift:0 4px 12px rgba(0,0,0,.42);
  color:#e6ebf2;
}
html[data-theme="dark"] .nav-burger span{background:#e6ebf2}

/* El anillo se recorta con mask-composite; donde no exista, un aro simple */
@supports not ((mask-composite:exclude) or (-webkit-mask-composite:xor)){
  .btn-wa::after,.theme-toggle::after,.nav-burger::after,
  .btn-lg::after,.btn::after,.hero .coverage::after{
    background:none;-webkit-backdrop-filter:none;backdrop-filter:none;
    box-shadow:inset 0 0 0 1px var(--ring-hi);
  }
}