/* ============================================================================
   DPAI · Mejoras de experiencia ("vanguardia")
   Se carga DESPUÉS de sections.css. Agrupa todo lo nuevo:
   navegación móvil, barra CTA fija, cifras tipo ledger, testimonios, FAQ,
   demo en celular, columna lateral de "Nosotros", animaciones y pulido.
   Depende de tokens.css. Documentación: docs/design-system.md
   ========================================================================== */

/* ── Animaciones de entrada (reveal) ───────────────────────────────────────
   El JS marca elementos con [data-reveal] y les añade .is-in al entrar en
   pantalla. Si el usuario pide menos movimiento, no se ocultan (quedan visibles).
   ────────────────────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion:no-preference){
  [data-reveal]{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .7s cubic-bezier(.22,.61,.36,1);transition-delay:var(--rd,0s)}
  [data-reveal].is-in{opacity:1;transform:none}
}

/* ── Saltar al contenido (accesibilidad de teclado) ───────────────────────── */
.skip-link{position:fixed;top:-60px;left:12px;z-index:60;background:var(--azul);color:#fff;padding:10px 16px;border-radius:10px;font-family:var(--display);font-weight:700;font-size:.9rem;text-decoration:none;transition:top .18s ease}
.skip-link:focus{top:12px;outline:3px solid var(--cian);outline-offset:2px}

/* ── Navegación: acciones del header + menú móvil ─────────────────────────── */
/* Sección activa (scroll-spy): el JS pone aria-current="true" en el enlace */
.nav-links a{position:relative}
.nav-links a[aria-current="true"]{color:var(--nieve)}
.nav-links a[aria-current="true"]::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--cian);border-radius:2px}
@media (max-width:960px){ .nav-links a[aria-current="true"]::after{display:none} }

/* Botón en estado "Enviando…" */
.btn[aria-busy="true"]{opacity:.75;pointer-events:none}

/* Sello de confianza bajo el formulario */
.trust{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:4px}
.trust span{display:flex;align-items:center;gap:7px;font-size:.78rem;font-weight:600;color:#45505F}
.trust svg{width:16px;height:16px;flex:none;color:#149A66}

.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;width:46px;height:46px;border:1.5px solid var(--line);border-radius:12px;background:var(--chip);color:var(--nieve);cursor:pointer;align-items:center;justify-content:center;transition:border-color .15s,background .15s}
.nav-toggle:hover{border-color:var(--cian)}
.nav-toggle:focus-visible{outline:3px solid var(--cian);outline-offset:2px}
.nav-toggle svg{width:24px;height:24px}
.nav-toggle .ico-close{display:none}
header[data-open="true"] .nav-toggle .ico-open{display:none}
header[data-open="true"] .nav-toggle .ico-close{display:block}

@media (max-width:960px){
  .nav-toggle{display:inline-flex}
  .nav .nav-links{position:absolute;top:100%;left:0;right:0;display:flex;flex-direction:column;gap:0;
    background:#050B18;box-shadow:0 24px 40px rgba(0,0,0,.5);
    border-bottom:1px solid var(--line);padding:6px var(--gutter) 18px;margin:0;
    transform:translateY(-10px);opacity:0;pointer-events:none;transition:transform .22s ease,opacity .22s ease}
  header[data-open="true"] .nav .nav-links{transform:none;opacity:1;pointer-events:auto}
  .nav .nav-links li{width:100%}
  .nav .nav-links a{display:block;padding:14px 2px;font-size:1rem;border-bottom:1px solid rgba(255,255,255,.07)}
}
@media (max-width:520px){ .nav-cta{display:none} }   /* en pantallas muy chicas manda la barra fija */

/* ── Barra CTA fija (solo móvil) ───────────────────────────────────────────── */
.mobile-cta{position:fixed;left:0;right:0;bottom:72px;z-index:40;display:none;gap:10px;
  padding:10px 14px calc(10px + env(safe-area-inset-bottom));
  background:rgba(5,11,24,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--line)}
.mobile-cta .btn{flex:1;justify-content:center;padding:13px 16px}
.mobile-cta .btn-wa{flex:none;width:52px;background:#25D366;color:#fff;box-shadow:none}
.mobile-cta .btn-wa svg{width:22px;height:22px}
@media (max-width:640px){
  .mobile-cta{display:flex}
  body{padding-bottom:152px}
  .wa-float{display:none}   /* la barra ya ofrece WhatsApp */
}

/* ── Cifras tipo "ledger" (reemplaza las tarjetas) ─────────────────────────
   Formato editorial de reporte: regla superior, columnas divididas por
   líneas finas, números grandes. Sin tarjeta blanca ni sombra.
   ────────────────────────────────────────────────────────────────────────── */
.ledger{display:grid;grid-template-columns:repeat(4,1fr);border-top:2px solid var(--nieve);margin-bottom:clamp(28px,4vw,46px)}
.ledger-item{padding:22px 26px 8px;border-left:1px solid var(--line)}
.ledger-item:first-child{border-left:0;padding-left:0}
.ledger-kicker{display:flex;align-items:center;gap:9px;font-family:var(--display);font-size:.75rem;letter-spacing:.13em;text-transform:uppercase;color:var(--bruma-2);font-weight:600}
.ledger-kicker::before{content:"";width:20px;height:2px;background:var(--azul);flex:none}
.ledger-item.pos .ledger-kicker::before{background:var(--ok)}
.ledger-num{display:block;font-family:var(--display);font-weight:700;font-size:clamp(2.6rem,4.6vw,3.7rem);letter-spacing:-.02em;line-height:1.02;font-variant-numeric:tabular-nums;color:var(--nieve);margin:12px 0 8px}
.ledger-item.pos .ledger-num{color:var(--ok)}
.ledger-desc{color:var(--bruma);font-size:.93rem;line-height:1.5;max-width:30ch}
@media (max-width:900px){
  .ledger{grid-template-columns:1fr 1fr;border-top:0}
  .ledger-item{border-left:0;border-top:2px solid var(--line);padding:18px 0 4px}
  .ledger-item:nth-child(even){padding-left:20px;border-left:1px solid var(--line)}
  .ledger-item:nth-child(odd){padding-right:20px}
}
@media (max-width:520px){
  .ledger{grid-template-columns:1fr}
  .ledger-item{border-left:0!important;padding:18px 0 4px}
}

/* ── Testimonios ───────────────────────────────────────────────────────────── */
.testi-sec{background:linear-gradient(180deg,var(--carbon),#0B1A33)}
.testis{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:860px){.testis{grid-template-columns:1fr}}
/* Estilo editorial (cita de revista): sin caja ni avatar de inicial. */
.testi{position:relative;background:none;border:0;border-left:2px solid rgba(25,199,255,.45);border-radius:0;
  padding:4px 8px 4px 26px;display:grid;gap:18px;transition:border-color .2s ease}
.testi:hover{border-left-color:var(--cian)}
.testi .mark{font-family:var(--display);font-weight:700;font-size:3rem;line-height:0;color:var(--cian);opacity:.5;height:.5em;margin-top:.25em}
.testi blockquote{margin:0;font-family:var(--display);font-weight:500;font-size:1.2rem;line-height:1.45;letter-spacing:-.01em;color:var(--nieve)}
.testi .who{border-top:1px solid var(--line);padding-top:14px}
.testi .who b{display:block;font-family:var(--display);font-size:.98rem;color:var(--nieve);line-height:1.3}
.testi .who span{display:block;font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;color:var(--cian);margin-top:3px}
.testi .who span{font-size:.82rem;color:var(--bruma)}

/* ── FAQ (reutiliza details.acc) ───────────────────────────────────────────── */
.faq-list{max-width:860px}

/* ── Demo en celular ───────────────────────────────────────────────────────── */
.demo{display:grid;grid-template-columns:1.1fr auto;gap:clamp(28px,5vw,64px);align-items:center}
@media (max-width:820px){.demo{grid-template-columns:1fr;justify-items:center;text-align:center}}
.demo .copy{display:grid;gap:16px;max-width:52ch}
.demo .copy ul{margin:0;padding-left:18px;color:var(--bruma);display:grid;gap:8px}
@media (max-width:820px){.demo .copy ul{text-align:left}}
.phone{width:300px;max-width:80vw;border-radius:36px;padding:14px;position:relative;flex:none;
  background:linear-gradient(180deg,#132749,#070f1f);border:1px solid rgba(255,255,255,.1);
  box-shadow:0 36px 80px rgba(0,0,0,.55),0 0 44px rgba(30,95,255,.12)}
.phone::before{content:"";position:absolute;top:14px;left:50%;transform:translateX(-50%);width:120px;height:20px;border-radius:0 0 14px 14px;background:#05101f;z-index:2}
.phone-screen{border-radius:26px;background:var(--carbon);border:1px solid rgba(255,255,255,.06);padding:42px 16px 18px;display:grid;gap:12px}
.phone-top{display:flex;justify-content:space-between;align-items:center;font-family:var(--display);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--bruma)}
.phone-top .live{display:flex;align-items:center;gap:6px;color:var(--ok)}
.phone-top .live::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px var(--ok);animation:pulso 2s infinite}
.phone-hero{display:grid;gap:4px;padding:4px 0 10px;border-bottom:1px solid rgba(255,255,255,.08)}
.phone-hero span{font-size:.78rem;color:var(--bruma)}
.phone-hero b{font-family:var(--display);font-size:1.9rem;font-weight:700;color:var(--nieve);font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1}
.phone-row{display:flex;justify-content:space-between;align-items:baseline;gap:10px;font-size:.86rem}
.phone-row span{color:var(--bruma)}
.phone-row b{font-family:var(--display);font-weight:600;color:var(--nieve);font-variant-numeric:tabular-nums}
.phone-alert{margin-top:4px;background:rgba(255,138,138,.12);border:1px solid rgba(255,138,138,.3);border-radius:10px;padding:10px 12px;font-size:.82rem;color:#FFC7C7}
.phone-alert b{color:#FF8A8A}

/* ── Nosotros: dos columnas (equilibra el espacio en desktop) ───────────────── */
.about-layout{display:grid;grid-template-columns:1.5fr .9fr;gap:clamp(24px,4vw,52px);align-items:start}
@media (max-width:900px){.about-layout{grid-template-columns:1fr}}
.about-aside{display:grid;gap:12px;position:sticky;top:112px}
@media (max-width:900px){.about-aside{position:static}}
.about-aside .sello{border:1px solid var(--line);border-radius:14px;background:var(--chip);padding:18px 20px;display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:center}
.about-aside .sello .ic{width:40px;height:40px;border-radius:10px;flex:none;display:grid;place-items:center;color:var(--cian);background:var(--chip);border:1px solid var(--line)}
.about-aside .sello .ic svg{width:22px;height:22px}
.about-aside .sello b{font-family:var(--display);font-size:.98rem;color:var(--nieve);display:block;line-height:1.25}
.about-aside .sello span{font-size:.86rem;color:var(--bruma)}

/* ── Teaser de productos (landing) ─────────────────────────────────────────── */
.teaser{display:grid;grid-template-columns:1fr auto;gap:clamp(20px,4vw,48px);align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:clamp(24px,4vw,40px)}
@media (max-width:760px){.teaser{grid-template-columns:1fr}}
.teaser .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.teaser .chip{font-family:var(--display);font-size:.84rem;font-weight:600;color:var(--nieve);background:var(--chip);border:1px solid var(--line);border-radius:999px;padding:7px 14px}

/* ── Pulido de hover (micro-interacciones) ─────────────────────────────────── */
.way,.mini{transition:transform .2s ease,border-color .2s ease}
.way:hover,.mini:hover{transform:translateY(-2px);border-color:var(--cian)}

/* ── Formulario: estados de validación ─────────────────────────────────────── */
.field-error{display:none;font-size:.78rem;font-weight:600;color:#C0392B}
label.invalid input,label.invalid select,label.invalid textarea{border-color:#E74C3C;background:#FFF3F2}
label.invalid .field-error{display:block}
input:user-valid,select:user-valid,textarea:user-valid{border-color:#B7D3C4}
.form-ok{display:none;align-items:center;gap:8px;background:#E7F8F0;border:1px solid #9FE3C4;color:#0E7A4F;border-radius:10px;padding:10px 12px;font-size:.88rem;font-weight:600}
.form-ok.show{display:flex}
.form-ok svg{width:18px;height:18px;flex:none}