/* ============================================================================
   Landing pública firm.la — estilos autónomos (mobile-first, sin frameworks).
   Paleta tomada del logotipo: azul marino profundo + acero, con acento azul
   para las llamadas a la acción.
   ============================================================================ */

:root {
    --azul-900: #041f3f;
    --azul-800: #06376b;
    --azul-700: #0a4a8f;
    --azul-500: #1f63c4;
    --acc-500:  #4f8ff7;
    --acc-400:  #7eafff;
    --acero:    #838d93;
    --ink:      #17203a;
    --muted:    #5b6478;
    --line:     #e6e9f2;
    --bg:       #ffffff;
    --bg-alt:   #f4f7fb;
    --white:    #ffffff;
    --radius:   16px;
    --shadow:   0 10px 30px rgba(4, 31, 63, .08);
    --shadow-lg:0 22px 48px rgba(4, 31, 63, .16);
    /* Degradados de marca: el acento no es un color plano, para que los
       elementos que mandan (botón, nodo, sello) tengan volumen. */
    --grad-acc: linear-gradient(135deg, #4f8ff7 0%, #1f63c4 100%);
    --grad-dark:linear-gradient(150deg, #041f3f 0%, #0a4a8f 70%, #1f63c4 130%);
    --ease:     cubic-bezier(.22, 1, .36, 1);
    --maxw:     1120px;
    --font:     -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font);
    color: var(--ink);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--azul-500); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
    width: 100%;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 20px;
}

/* Etiqueta solo para lectores de pantalla (el campo de verificación la usa). */
.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* -------------------- Botones -------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    font-weight: 600;
    font-size: .95rem;
    padding: .65rem 1.2rem;
    border-radius: 999px;
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
    white-space: nowrap;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-lg { padding: .85rem 1.6rem; font-size: 1rem; }
.btn-block { width: 100%; }
.btn-primary { background: var(--grad-acc); color: var(--white); border-color: transparent; box-shadow: 0 6px 16px rgba(31,99,196,.28); }
.btn-primary:hover { color: var(--white); box-shadow: 0 12px 26px rgba(79, 143, 247, .42); }
.btn-outline { background: transparent; color: var(--white); border-color: rgba(255,255,255,.6); }
.btn-outline:hover { background: rgba(255,255,255,.12); }
.btn-ghost { background: transparent; color: var(--white); border-color: transparent; }
.btn-ghost:hover { background: rgba(255,255,255,.12); }

/* -------------------- Header / Nav -------------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--azul-900);
    color: var(--white);
}
.nav-wrap {
    display: flex;
    align-items: center;
    gap: 1rem;
    min-height: 64px;
}
.brand { display: inline-flex; align-items: center; }
.brand:hover { text-decoration: none; }
.brand img { height: 40px; width: auto; }
.main-nav { display: none; margin-left: auto; gap: 1.4rem; }
.main-nav a { color: rgba(255,255,255,.85); font-weight: 500; }
.main-nav a:hover { color: var(--white); text-decoration: none; }
.nav-cta { display: none; gap: .6rem; margin-left: 1rem; }

.nav-toggle {
    margin-left: auto;
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px; height: 42px;
    background: transparent;
    border: 1px solid rgba(255,255,255,.3);
    border-radius: 10px;
    cursor: pointer;
}
.nav-toggle span { display: block; height: 2px; background: var(--white); border-radius: 2px; }

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: .3rem;
    padding: .8rem 20px 1.2rem;
    background: var(--azul-800);
    border-top: 1px solid rgba(255,255,255,.08);
}
.mobile-nav a { color: rgba(255,255,255,.9); padding: .6rem 0; font-weight: 500; }
.mobile-nav a:hover { text-decoration: none; }
.mobile-nav .btn { margin-top: .5rem; }

/* -------------------- Aviso discreto -------------------- */
.notice { background: #fff7e6; border-bottom: 1px solid #f2dca8; }
.notice .container { display: flex; align-items: flex-start; gap: .6rem; padding-top: .8rem; padding-bottom: .8rem; font-size: .92rem; color: #6b5410; }
.notice .ico { font-style: normal; }

/* -------------------- Hero -------------------- */
.hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(900px 420px at 12% 110%, rgba(31,99,196,.55) 0%, transparent 60%),
        radial-gradient(1200px 500px at 80% -10%, var(--azul-700) 0%, var(--azul-900) 55%);
    color: var(--white);
    padding: 3rem 0 3.5rem;
}
/* Retícula tenue: le da materia al fondo plano sin competir con el texto. */
.hero::before {
    content: "";
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
    background-size: 54px 54px;
    -webkit-mask-image: radial-gradient(70% 60% at 50% 35%, #000 0%, transparent 75%);
            mask-image: radial-gradient(70% 60% at 50% 35%, #000 0%, transparent 75%);
    pointer-events: none;
}
.hero > .container { position: relative; z-index: 1; }
.hero-grid { display: grid; gap: 2rem; align-items: center; }
.eyebrow {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: .08em;
    font-size: .78rem;
    font-weight: 700;
    color: var(--acc-400);
    margin: 0 0 .6rem;
}
.hero h1 { font-size: 2rem; line-height: 1.15; margin: 0 0 1rem; font-weight: 800; }
.hero .hl { color: var(--acc-400); }
.lead { font-size: 1.08rem; color: rgba(255,255,255,.85); margin: 0 0 1.6rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-bottom: 1.4rem; }
.hero-badges { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem 1.2rem; padding: 0; margin: 0; }
.hero-badges li {
    display: inline-flex; align-items: center; gap: .4rem;
    font-size: .86rem; color: rgba(255,255,255,.88);
    background: rgba(255,255,255,.07);
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 999px; padding: .3rem .8rem .3rem .65rem;
    backdrop-filter: blur(4px);
}
.hero-badges .ico { color: var(--acc-400); }

/* Escenario del arte: halo, flotación y dos acuses colgados de las esquinas. */
.hero-stage { position: relative; display: block; }
.hero-stage img { margin: 0 auto; position: relative; z-index: 1; filter: drop-shadow(0 24px 44px rgba(0,0,0,.42)); animation: flota 7s var(--ease) infinite; }
.hero-glow {
    position: absolute; z-index: 0; left: 50%; top: 48%;
    width: 74%; aspect-ratio: 1; transform: translate(-50%,-50%);
    background: radial-gradient(circle, rgba(79,143,247,.55) 0%, rgba(79,143,247,0) 68%);
    filter: blur(6px); pointer-events: none;
}
.hero-chip {
    position: absolute; z-index: 2;
    display: inline-flex; align-items: center; gap: .45rem;
    background: rgba(255,255,255,.96); color: var(--azul-800);
    font-size: .82rem; font-weight: 600;
    padding: .5rem .85rem; border-radius: 999px;
    box-shadow: 0 12px 26px rgba(4,31,63,.28);
}
.hero-chip .ico { color: #12b886; }
/* Van MORDIENDO el borde de la hoja, no encima de su contenido: tapar el
   encabezado o el QR del documento es tapar justo lo que se está presumiendo. */
.hero-chip--1 { left: -5%;  top: -1%;    animation: flota 6s var(--ease) infinite .4s; }
.hero-chip--2 { right: -6%; bottom: 2%;  animation: flota 6.6s var(--ease) infinite 1.1s; }
.hero-chip--2 .ico { color: var(--acc-500); }

@keyframes flota { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* -------------------- Secciones -------------------- */
.section { padding: 4rem 0; }
.section-alt { background: var(--bg-alt); }
.section-title { font-size: 1.7rem; font-weight: 800; text-align: center; margin: 0 0 .7rem; color: var(--azul-900); letter-spacing: -.01em; }
/* Subrayado corto bajo el título: ancla la sección sin una línea de separación
   a todo lo ancho, que es lo que hace que una página parezca un formulario. */
.section-title::after {
    content: ""; display: block; width: 54px; height: 4px; border-radius: 2px;
    margin: .7rem auto 0; background: var(--grad-acc);
}
.section-sub { text-align: center; color: var(--muted); max-width: 720px; margin: 0 auto 2.4rem; font-size: 1.02rem; }

/* Antetítulo (el renglón corto en versalitas sobre el título). */
.eyebrow-center { display: block; text-align: center; margin-bottom: .5rem; color: var(--acc-500); }
.section-dark .eyebrow-center { color: var(--acc-400); }

/* -------------------- Iconos (sprite inline) -------------------- */
.sprite { display: none; }
.ico {
    width: 24px; height: 24px; flex: 0 0 auto;
    fill: none; stroke: currentColor; stroke-width: 1.7;
    stroke-linecap: round; stroke-linejoin: round;
}
.ico-xs { width: 16px; height: 16px; stroke-width: 2.1; }

/* Problema -> solución */
.ps-grid { display: grid; gap: 1.2rem; }
.ps-col { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.4rem 1.4rem 1rem; box-shadow: var(--shadow); }
.ps-col h3 { margin: 0 0 .8rem; font-size: 1.15rem; }
.ps-col ul { margin: 0; padding-left: 1.1rem; }
.ps-col li { margin-bottom: .5rem; color: #37405a; }
.ps-problem h3 { color: #b04a2f; }
.ps-problem li::marker { color: #d1836f; }
.ps-solution h3 { color: var(--azul-700); }
.ps-solution li::marker { color: var(--acc-500); }

/* Tarjetas de capacidades */
.cards-grid { display: grid; gap: 1.1rem; grid-template-columns: 1fr; }
.card {
    position: relative; overflow: hidden;
    background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
    padding: 1.5rem; box-shadow: var(--shadow);
    transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
/* Filo de acento que se desliza al pasar el puntero: movimiento con sentido
   —señala la tarjeta activa— y no adorno que se mueve solo. */
.card::before {
    content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
    background: var(--grad-acc); transform: scaleX(0); transform-origin: left;
    transition: transform .3s var(--ease);
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: #d7e2f5; }
.card:hover::before { transform: scaleX(1); }
.card-ico {
    width: 52px; height: 52px; display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #eaf2ff 0%, #dbe8ff 100%);
    color: var(--azul-500); border-radius: 14px; margin-bottom: 1rem;
    transition: background .25s var(--ease), color .25s var(--ease), transform .25s var(--ease);
}
.card:hover .card-ico, .seg:hover .card-ico { background: var(--grad-acc); color: var(--white); transform: scale(1.06); }
.card h3 { margin: 0 0 .5rem; font-size: 1.1rem; color: var(--azul-900); }
.card p { margin: 0; color: var(--muted); font-size: .96rem; }

/* Perfiles */
.perf-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
.perf { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.2rem; }
.perf-ico { font-size: 1.5rem; }
.perf h3 { margin: .4rem 0 .3rem; font-size: 1.02rem; color: var(--azul-800); }
.perf p { margin: 0; color: var(--muted); font-size: .92rem; }

/* Verificación pública */
.verify-box {
    text-align: center; max-width: 720px;
    background: var(--white); border: 1px solid var(--line); border-radius: 22px;
    padding: 2.4rem 1.6rem 2rem; box-shadow: var(--shadow-lg);
}
.verify-box .section-sub { margin-bottom: 1.6rem; }
.verify-ico {
    display: inline-flex; align-items: center; justify-content: center;
    width: 58px; height: 58px; border-radius: 16px; margin-bottom: 1rem;
    background: var(--grad-acc); color: var(--white);
    box-shadow: 0 12px 26px rgba(31,99,196,.3);
}
.verify-ico .ico { width: 28px; height: 28px; }
.verify-form {
    display: flex; flex-wrap: wrap; justify-content: center; gap: .6rem;
    max-width: 560px; margin: 0 auto .8rem;
}
.verify-form input {
    font: inherit; flex: 1 1 260px; min-width: 0;
    padding: .75rem 1rem;
    border: 1.5px solid var(--line); border-radius: 999px;
    background: var(--white); color: var(--ink);
    font-family: "SFMono-Regular", Consolas, monospace; letter-spacing: .04em;
    text-align: center;
}
.verify-form input:focus { outline: none; border-color: var(--azul-500); box-shadow: 0 0 0 3px rgba(31,99,196,.15); }
.verify-hint { color: var(--muted); font-size: .92rem; margin: 0; }

/* Acceso / subdominio */
.login-box { text-align: center; }
.login-url {
    display: inline-flex; flex-wrap: wrap; justify-content: center; align-items: baseline; gap: .1rem;
    background: var(--white); border: 1.5px dashed var(--azul-500); border-radius: 12px;
    padding: .8rem 1.2rem; font-size: 1.25rem; font-family: "SFMono-Regular", Consolas, monospace;
    margin: .4rem auto 1rem; color: var(--muted); max-width: 100%; word-break: break-word;
}
.login-url strong { color: var(--azul-700); }
.login-hint { max-width: 640px; margin: 0 auto; color: var(--muted); font-size: .96rem; }

/* CTA / contacto */
.cta-section { background: linear-gradient(180deg, var(--bg-alt) 0%, var(--white) 70%); }
.contact-card {
    position: relative;
    max-width: 660px; margin: 1.2rem auto 0; text-align: center;
    background: var(--grad-dark); border: 0; border-radius: 22px;
    padding: 2.6rem 1.8rem 2.2rem; box-shadow: 0 26px 60px rgba(4,31,63,.28);
    color: rgba(255,255,255,.88); overflow: hidden;
}
.contact-card::before {
    content: ""; position: absolute; inset: 0;
    background: radial-gradient(520px 220px at 50% -20%, rgba(126,175,255,.3), transparent 70%);
    pointer-events: none;
}
.contact-card > * { position: relative; z-index: 1; }
.contact-ico {
    display: inline-flex; align-items: center; justify-content: center;
    width: 54px; height: 54px; border-radius: 16px; margin-bottom: 1rem;
    background: rgba(255,255,255,.12); color: var(--white);
    border: 1px solid rgba(255,255,255,.22);
}
.contact-card .contact-label { color: rgba(255,255,255,.6); }
.contact-card .contact-mail a { color: var(--white); }
.contact-card .contact-note { color: rgba(255,255,255,.72); }
.contact-card .btn-primary { background: var(--white); color: var(--azul-800); box-shadow: 0 10px 24px rgba(0,0,0,.25); }
.contact-card .btn-primary:hover { color: var(--azul-900); }
.contact-label { margin: 0; font-size: .82rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.contact-mail { margin: .3rem 0 1rem; font-size: 1.45rem; font-weight: 700; word-break: break-word; }
.contact-mail a { color: var(--azul-700); }
.contact-note { margin: 0 auto 1.4rem; max-width: 480px; color: var(--muted); font-size: .96rem; }

/* -------------------- Footer -------------------- */
.site-footer { background: var(--azul-900); color: rgba(255,255,255,.85); padding-top: 2.4rem; }
.footer-grid { display: grid; gap: 1.4rem; padding-bottom: 1.6rem; }
.footer-brand img { height: 36px; width: auto; }
.footer-brand p { margin: .5rem 0 0; color: rgba(255,255,255,.6); font-size: .9rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; }
.footer-links a { color: rgba(255,255,255,.8); font-size: .92rem; }
.footer-legal { border-top: 1px solid rgba(255,255,255,.1); padding: 1rem 0; }
.footer-legal .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem; font-size: .85rem; color: rgba(255,255,255,.6); }
.muted { color: rgba(255,255,255,.45); }
.muted a { color: rgba(255,255,255,.7); }

/* -------------------- Nota bajo el CTA del héroe -------------------- */
.hero-nota { margin: -.6rem 0 1.2rem; font-size: .92rem; color: rgba(255,255,255,.72); }

/* -------------------- Cómo funciona: tres pasos -------------------- */
.pasos { list-style: none; display: grid; gap: 1.6rem; padding: 0; margin: 0; position: relative; }
.paso { position: relative; text-align: center; padding: 0 .6rem; }

/* El nodo: icono dentro de un disco con halo y el número colgado en la esquina.
   Es lo que convierte tres cuadros en una secuencia. */
.paso-nodo {
    position: relative; z-index: 1;
    display: inline-flex; align-items: center; justify-content: center;
    width: 76px; height: 76px; border-radius: 50%;
    background: var(--white); color: var(--azul-500);
    border: 1px solid #dde7f7;
    box-shadow: 0 10px 26px rgba(31,99,196,.16);
    margin-bottom: 1.1rem;
    transition: transform .3s var(--ease), box-shadow .3s var(--ease), color .3s var(--ease);
}
.paso-nodo .ico { width: 30px; height: 30px; }
.paso-num {
    position: absolute; right: -4px; bottom: -4px;
    width: 28px; height: 28px; border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--grad-acc); color: var(--white);
    font-size: .84rem; font-weight: 800;
    border: 3px solid var(--bg);
}
.paso:hover .paso-nodo { transform: translateY(-4px) scale(1.04); box-shadow: 0 16px 34px rgba(31,99,196,.26); }
.paso h3 { margin: 0 0 .45rem; font-size: 1.12rem; color: var(--azul-900); }
.paso p { margin: 0 auto; max-width: 34ch; color: var(--muted); font-size: .96rem; }

/* -------------------- Segmentos -------------------- */
.seg-grid { display: grid; gap: 1.1rem; grid-template-columns: 1fr; }
.seg {
    background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
    padding: 1.6rem 1.5rem; box-shadow: var(--shadow);
    transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.seg:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: #d7e2f5; }
.seg h3 { margin: 0 0 .5rem; font-size: 1.12rem; color: var(--azul-900); }
.seg p { margin: 0; color: var(--muted); font-size: .96rem; }

/* -------------------- Precios -------------------- */
.pr-toggle {
    display: inline-flex; margin: 0 auto 1rem; padding: 4px;
    background: var(--bg-alt); border: 1px solid var(--line); border-radius: 999px;
}
.pr-toggle { display: flex; width: fit-content; }
.pr-tab {
    appearance: none; border: 0; background: transparent; cursor: pointer;
    font: inherit; font-weight: 600; color: var(--muted);
    padding: .5rem 1.2rem; border-radius: 999px;
}
.pr-tab.is-on { background: var(--white); color: var(--azul-800); box-shadow: 0 2px 8px rgba(4,31,63,.12); }
.pr-ahorro { text-align: center; color: var(--azul-700); font-weight: 600; font-size: .92rem; margin: 0 0 1.4rem; }

.pr-grid { display: grid; gap: 1.1rem; grid-template-columns: 1fr; align-items: stretch; }
.pr-card {
    background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
    padding: 1.5rem 1.4rem; box-shadow: var(--shadow); display: flex; flex-direction: column;
}
.pr-card { transition: transform .25s var(--ease), box-shadow .25s var(--ease); }
.pr-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pr-card--destacado { border-color: var(--acc-500); box-shadow: 0 16px 36px rgba(79,143,247,.22); position: relative; }
/* La tarjeta recomendada se nota ANTES de leerla: sello arriba y un dedo más
   de altura que las demás. */
.pr-badge {
    position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
    background: var(--grad-acc); color: var(--white);
    font-size: .74rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
    padding: .3rem .85rem; border-radius: 999px; white-space: nowrap;
    box-shadow: 0 8px 18px rgba(31,99,196,.32);
}
.pr-nombre { margin: 0 0 .6rem; font-size: 1.15rem; color: var(--azul-900); }
.pr-precio { margin: 0 0 .2rem; display: flex; align-items: baseline; gap: .35rem; flex-wrap: wrap; }
.pr-monto { font-size: 2rem; font-weight: 800; color: var(--azul-800); line-height: 1.1; }
.pr-periodo { color: var(--muted); font-size: .92rem; }
.pr-cotiza { font-size: 1.5rem; font-weight: 800; color: var(--azul-800); }
.pr-desde { margin: .1rem 0 0; color: var(--muted); font-size: .86rem; }
.pr-desc { margin: .7rem 0 1rem; color: var(--muted); font-size: .94rem; }
.pr-lims { list-style: none; padding: 0; margin: 0 0 1.3rem; display: grid; gap: .45rem; }
.pr-lims li { font-size: .94rem; color: #37405a; position: relative; padding-left: 1.3rem; }
.pr-lims li::before { content: "✓"; position: absolute; left: 0; color: var(--acc-500); font-weight: 700; }
.pr-lims strong { color: var(--azul-900); }
.pr-card .btn { margin-top: auto; }
.btn-outline-dark { background: transparent; color: var(--azul-700); border-color: var(--azul-700); }
.btn-outline-dark:hover { background: var(--azul-700); color: var(--white); }
.pr-incluye { text-align: center; margin: 1.6rem auto .4rem; max-width: 640px; color: var(--azul-700); font-weight: 600; font-size: .95rem; }
.pr-nota { text-align: center; margin: 0 auto; max-width: 720px; color: var(--muted); font-size: .86rem; }

/* -------------------- Evidencia (sección obscura) --------------------
   El corte de color a media página es intencional: la evidencia es el centro
   del producto y merece un respiro visual, no otra franja blanca más. */
.section-dark {
    background: var(--grad-dark);
    color: rgba(255,255,255,.9);
    position: relative; overflow: hidden;
}
.section-dark::before {
    content: ""; position: absolute; inset: 0;
    background: radial-gradient(700px 320px at 15% 0%, rgba(126,175,255,.22), transparent 65%);
    pointer-events: none;
}
.section-dark > .container { position: relative; z-index: 1; }
.section-dark .section-title { color: var(--white); }
.section-dark .section-sub { color: rgba(255,255,255,.72); }

.ev-box { max-width: 1000px; }

/* La cadena: cuatro eslabones unidos por una línea punteada. */
.ev-chain { list-style: none; padding: 0; margin: 0 0 1.8rem; display: grid; gap: 1.4rem; position: relative; }
.ev-eslabon {
    position: relative;
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.14);
    border-radius: var(--radius);
    padding: 1.3rem 1.2rem;
    backdrop-filter: blur(6px);
    transition: transform .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
}
.ev-eslabon:hover { transform: translateY(-4px); background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.26); }
.ev-ico {
    display: inline-flex; align-items: center; justify-content: center;
    width: 46px; height: 46px; border-radius: 13px;
    background: rgba(126,175,255,.18); color: var(--acc-400);
    border: 1px solid rgba(126,175,255,.3);
    margin-bottom: .85rem;
}
.ev-eslabon h3 { margin: 0 0 .4rem; font-size: 1.02rem; color: var(--white); }
.ev-eslabon p { margin: 0; font-size: .92rem; color: rgba(255,255,255,.72); line-height: 1.6; }
.ev-nota {
    background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14);
    border-radius: var(--radius); padding: 1rem 1.2rem;
    color: rgba(255,255,255,.74); font-size: .9rem; margin: 0; text-align: center;
}

/* -------------------- Acceso: las dos puertas -------------------- */
.acc-grid { display: grid; gap: 1.1rem; grid-template-columns: 1fr; margin-bottom: 1.4rem; }
.acc { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem; text-align: center; }
.acc h3 { margin: 0 0 .3rem; font-size: 1.05rem; color: var(--azul-800); }
.acc-d { margin: 0 0 .6rem; color: var(--muted); font-size: .92rem; }
.acc .login-url { margin: 0; }

/* -------------------- Responsive -------------------- */
@media (min-width: 720px) {
    .ev-chain { grid-template-columns: 1fr 1fr; }
    .ps-grid { grid-template-columns: 1fr 1fr; }
    .cards-grid { grid-template-columns: 1fr 1fr; }
    .perf-grid { grid-template-columns: 1fr 1fr; }
    .seg-grid { grid-template-columns: 1fr 1fr; }
    /* La línea que une los tres nodos solo existe cuando los pasos están en
       fila: apilados, la secuencia ya la da el orden de lectura. */
    .pasos { grid-template-columns: repeat(3, 1fr); gap: 1rem; }
    .pasos::before {
        content: ""; position: absolute; top: 38px; left: 16%; right: 16%; height: 2px;
        background: linear-gradient(90deg, transparent, #cdddf5 12%, #cdddf5 88%, transparent);
    }
    .pr-grid { grid-template-columns: 1fr 1fr; }
    .acc-grid { grid-template-columns: 1fr 1fr; }
    .hero h1 { font-size: 2.6rem; }
    .section-title { font-size: 2rem; }
}

@media (min-width: 992px) {
    .ev-chain { grid-template-columns: repeat(4, 1fr); }
    .pr-card--destacado { transform: translateY(-10px); }
    .pr-card--destacado:hover { transform: translateY(-14px); }
    .nav-toggle { display: none; }
    .mobile-nav { display: none !important; }
    .main-nav { display: flex; }
    .nav-cta { display: inline-flex; }
    .hero-grid { grid-template-columns: 1.05fr .95fr; }
    .hero { padding: 4.5rem 0 5rem; }
    .cards-grid { grid-template-columns: repeat(3, 1fr); }
    .perf-grid { grid-template-columns: repeat(4, 1fr); }
    .seg-grid { grid-template-columns: repeat(3, 1fr); }
    .pr-grid { grid-template-columns: repeat(4, 1fr); }
}

/* -------------------- Accesibilidad / preferencias -------------------- */
/* -------------------- Aparición al desplazar --------------------
   El contenido entra cuando entra en pantalla, no al cargar: así la página se
   siente viva mientras se recorre. Nace VISIBLE y el JS la esconde solo si va
   a poder mostrarla (ver landing.js): sin JS no se queda una página en blanco. */
.js-reveal .reveal { opacity: 0; transform: translateY(18px); }
.js-reveal .reveal.is-in {
    opacity: 1; transform: none;
    transition: opacity .6s var(--ease) var(--d, 0ms), transform .6s var(--ease) var(--d, 0ms);
}

/* -------------------- Encabezado al desplazar -------------------- */
.site-header { transition: box-shadow .25s var(--ease), background .25s var(--ease); }
.site-header.is-scrolled {
    background: rgba(4,31,63,.92);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 26px rgba(4,31,63,.28);
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .btn, .card, .seg, .pr-card, .paso-nodo, .ev-eslabon, .card-ico { transition: none; }
    /* Nada se mueve solo: ni la flotación del héroe ni las apariciones. */
    .hero-stage img, .hero-chip { animation: none; }
    .js-reveal .reveal { opacity: 1; transform: none; }
}
:focus-visible { outline: 3px solid var(--acc-400); outline-offset: 2px; border-radius: 4px; }