/* ChatBot+ landing — dark green/black palette (WhatsApp green) with glassmorphism cards.
   Plans/prices come from config.js (rendered by app.js); particles by particulas.js. */
:root {
    --fondo: #040a09;
    --fondo-2: #071311;
    --verde: #25d366;
    --verde-claro: #4bf596;
    --verde-oscuro: #11a352;
    --texto: #f1f7f4;
    --suave: #9fb4ac;
    --tenue: #6d817a;
    --vidrio: rgba(255, 255, 255, 0.045);
    --vidrio-2: rgba(255, 255, 255, 0.07);
    --borde: rgba(37, 211, 102, 0.16);
    --borde-2: rgba(255, 255, 255, 0.09);
    --radio: 20px;
    --sombra: 0 20px 60px -20px rgba(0, 0, 0, 0.7);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--fondo);
    color: var(--texto);
    font: 16px/1.6 "Inter", "Segoe UI", system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
body::before {
    /* ambient green glows behind the particles */
    content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none;
    background:
        radial-gradient(900px 600px at 85% 5%, rgba(37, 211, 102, 0.13), transparent 60%),
        radial-gradient(700px 500px at -5% 60%, rgba(17, 163, 82, 0.10), transparent 60%),
        radial-gradient(800px 500px at 50% 110%, rgba(37, 211, 102, 0.08), transparent 60%);
}
header, main, footer, .wa-flotante { position: relative; z-index: 1; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -0.02em; margin: 0; }
.verde { color: var(--verde); }
.contenedor { width: min(1180px, 100% - 40px); margin: 0 auto; }

/* ---------- glass helper (cards, nav, phone, plans) */
.vidrio, .franja article, .paso, .dato, .plan, .bandeja, .faq details, .modalidades, .barra.fija {
    background: var(--vidrio);
    border: 1px solid var(--borde-2);
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), var(--sombra);
}

/* ---------- buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    height: 52px; padding: 0 26px; border-radius: 999px; font-weight: 700; font-size: 15px;
    border: 1px solid transparent; cursor: pointer; transition: transform .15s, box-shadow .2s, background .2s;
}
.btn svg { width: 20px; height: 20px; }
.btn:hover { transform: translateY(-2px); }
.btn-verde {
    background: linear-gradient(180deg, #3fef8a, var(--verde) 55%, var(--verde-oscuro));
    color: #03140b; box-shadow: 0 10px 30px -8px rgba(37, 211, 102, 0.65), inset 0 1px 0 rgba(255, 255, 255, 0.4);
}
.btn-verde:hover { box-shadow: 0 14px 36px -8px rgba(37, 211, 102, 0.85), inset 0 1px 0 rgba(255, 255, 255, 0.4); }
.btn-borde { border-color: rgba(37, 211, 102, 0.55); color: var(--texto); background: rgba(37, 211, 102, 0.06); }
.btn-borde:hover { background: rgba(37, 211, 102, 0.14); }
.btn-chico { height: 42px; padding: 0 18px; font-size: 14px; }
.btn-grande { height: 58px; padding: 0 30px; font-size: 16px; }

/* ---------- header */
.barra {
    position: sticky; top: 0; z-index: 20; padding: 14px 0; transition: background .25s, padding .25s;
    /* faint glass from the start so background chat bubbles don't cross the logo/menu */
    background: rgba(4, 10, 9, 0.55); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.barra.fija { padding: 8px 0; border-width: 0 0 1px; border-radius: 0; background: rgba(4, 10, 9, 0.62); }
.barra-in { display: flex; align-items: center; gap: 28px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo b { display: block; font-size: 22px; font-weight: 800; letter-spacing: -0.02em; line-height: 1; }
.logo em { font-style: normal; color: var(--verde); }
.logo small { display: block; color: var(--suave); font-size: 11.5px; margin-top: 3px; }
.logo small a { color: var(--verde); }
.menu { display: flex; gap: 6px; margin-left: auto; }
.menu a { padding: 8px 14px; border-radius: 999px; color: var(--suave); font-size: 14px; font-weight: 500; transition: color .2s, background .2s; }
/* hover is only a color change, so it never looks like a second active item */
.menu a:hover { color: var(--texto); }
.menu a.activo { color: var(--texto); background: rgba(37, 211, 102, 0.1); box-shadow: inset 0 -2px 0 var(--verde); }
/* anchored sections land below the sticky header */
section[id] { scroll-margin-top: 80px; }
.hamburguesa { display: none; }

/* ---------- hero */
.hero { padding: 40px 0 70px; }
.hero-in { display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: center; }
.ceja { margin: 0 0 14px; color: var(--verde); font-size: 13px; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; }
.hero h1 { font-size: clamp(40px, 5.4vw, 66px); font-weight: 800; }
.hero-sub { color: var(--suave); font-size: 18px; max-width: 540px; margin: 22px 0 30px; }
.checks { list-style: none; padding: 0; margin: 26px 0 0; display: flex; gap: 22px; flex-wrap: wrap; color: var(--suave); font-size: 14px; }
.checks li { display: flex; align-items: center; gap: 8px; }
.checks li::before {
    content: "✓"; width: 18px; height: 18px; border-radius: 50%; display: grid; place-items: center;
    background: var(--verde); color: #03140b; font-size: 11px; font-weight: 900;
}

.hero-visual { position: relative; min-height: 600px; display: grid; place-items: center; }
.aura {
    position: absolute; width: 520px; height: 520px; border-radius: 50%;
    background: radial-gradient(circle, rgba(37, 211, 102, 0.35), rgba(37, 211, 102, 0.06) 45%, transparent 70%);
    filter: blur(10px);
}
.aura::after {
    /* neon swoosh ring */
    content: ""; position: absolute; inset: 40px; border-radius: 50%;
    border: 2px solid rgba(75, 245, 150, 0.55); border-left-color: transparent; border-bottom-color: transparent;
    transform: rotate(-25deg); box-shadow: 0 0 30px rgba(37, 211, 102, 0.4);
    animation: girar 18s linear infinite;
}
@keyframes girar { to { transform: rotate(335deg); } }

/* Phone model (same recipe as the tutarjeta.space hero): thin frame, dynamic island, clipped screen, float */
.celular {
    position: relative; z-index: 2; width: 18rem; aspect-ratio: 9 / 19.6; flex-shrink: 0;
    border-radius: 2.8rem; padding: .62rem; margin-right: 90px;
    background: linear-gradient(160deg, #26332f, #0a100e 55%, #050807);
    border: 1px solid rgba(255, 255, 255, 0.16);
    box-shadow: 0 50px 90px -30px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.14), 0 0 70px -10px rgba(37, 211, 102, 0.3);
    animation: flotar-cel 6s ease-in-out infinite;
}
.celular::before {
    /* side buttons */
    content: ""; position: absolute; right: -3px; top: 7rem; width: 3px; height: 3.6rem; border-radius: 0 3px 3px 0;
    background: #1d2724; box-shadow: -1px 0 0 rgba(255, 255, 255, 0.08), 0 -4.5rem 0 #1d2724;
}
.celular::after {
    /* dynamic island */
    content: ""; position: absolute; top: 1.1rem; left: 50%; transform: translateX(-50%); z-index: 5;
    width: 5.2rem; height: 1.25rem; border-radius: 1rem; background: #020303;
}
@keyframes flotar-cel { 0%, 100% { transform: translateY(0) rotate(-2.5deg); } 50% { transform: translateY(-14px) rotate(-1.2deg); } }
.pantalla { position: relative; height: 100%; display: flex; flex-direction: column; border-radius: 2.2rem; overflow: hidden; background: #0b1412; }
.cel-top { display: flex; justify-content: space-between; align-items: center; padding: 14px 24px 6px 28px; font-size: 12.5px; font-weight: 700; }
.cel-iconos { display: flex; gap: 5px; align-items: center; color: var(--texto); }
.cel-iconos svg { height: 10px; width: auto; fill: currentColor; }
.cel-cab { display: flex; align-items: center; gap: 8px; padding: 8px 12px 10px 8px; background: #111d1a; border-bottom: 1px solid rgba(255, 255, 255, 0.05); }
.cel-volver { font-size: 26px; line-height: 1; color: var(--verde); margin-top: -3px; }
.cel-nombre { flex: 1; min-width: 0; }
.cel-cab b { display: block; font-size: 13.5px; }
.cel-cab small { color: var(--verde); font-size: 10.5px; }
.cel-acc { display: flex; gap: 12px; color: var(--verde); }
.cel-acc svg { width: 18px; height: 18px; }
.cel-avatar { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; background: rgba(37, 211, 102, 0.15); }
.cel-avatar img { width: 20px; }
.cel-chat {
    flex: 1; display: flex; flex-direction: column; gap: 7px; padding: 10px 10px; overflow: hidden;
    /* WhatsApp-like doodle texture: tiny dots */
    background:
        radial-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1.5px) 0 0 / 14px 14px,
        radial-gradient(circle at 30% 20%, rgba(37, 211, 102, 0.07), transparent 60%), #0a1311;
}
.cel-fecha { align-self: center; font-size: 10px; padding: 3px 10px; border-radius: 7px; background: rgba(255, 255, 255, 0.07); color: var(--suave); margin-bottom: 2px; }
.cel-home { position: absolute; bottom: 7px; left: 50%; transform: translateX(-50%); width: 34%; height: 4px; border-radius: 4px; background: rgba(255, 255, 255, 0.55); }
.burbuja { position: relative; max-width: 86%; padding: 8px 11px 16px; border-radius: 14px; font-size: 12.5px; line-height: 1.45; }
.burbuja i { position: absolute; right: 9px; bottom: 3px; font-style: normal; font-size: 9.5px; color: rgba(255, 255, 255, 0.5); }
.burbuja.bot { align-self: flex-start; background: #1b2622; border-top-left-radius: 4px; }
.burbuja.yo { align-self: flex-end; background: #0f6b3c; border-top-right-radius: 4px; }
.opciones { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.opciones span { text-align: center; padding: 6px 4px; border-radius: 10px; font-size: 11.5px; color: var(--verde-claro); border: 1px solid rgba(37, 211, 102, 0.35); background: rgba(37, 211, 102, 0.06); }
.cel-input { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin: 0 8px 20px; padding: 6px 6px 6px 14px; border-radius: 999px; background: #17221f; font-size: 12px; color: var(--tenue); }
.cel-input b { width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; background: var(--verde); color: #03140b; font-size: 13px; }

.robot {
    /* mascot points left, towards the phone */
    position: absolute; z-index: 3; width: 300px; height: auto; right: -35px; bottom: 250px;
    filter: drop-shadow(0 24px 40px rgba(0, 0, 0, 0.65)) drop-shadow(0 0 34px rgba(37, 211, 102, 0.22));
    animation: flotar 5s ease-in-out infinite;
}
@keyframes flotar { 50% { transform: translateY(-14px); } }

/* floating glass WhatsApp bubbles */
.burbuja-wa {
    position: absolute; z-index: 4; display: grid; place-items: center; border-radius: 50%;
    width: 64px; height: 64px; color: var(--verde-claro);
    background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(75, 245, 150, 0.35);
    backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15), 0 10px 30px rgba(0, 0, 0, 0.45), 0 0 24px rgba(37, 211, 102, 0.25);
    animation: flotar-giro 6s ease-in-out infinite;
}
.burbuja-wa svg { width: 55%; height: 55%; filter: drop-shadow(0 0 6px rgba(37, 211, 102, 0.6)); }
.burbuja-wa.w1 { bottom: 110px; right: 20px; width: 74px; height: 74px; background: linear-gradient(160deg, #3fef8a, var(--verde-oscuro)); color: #fff; }
.burbuja-wa.w1 svg { filter: none; }
.burbuja-wa.w2 { top: 46%; left: 0; width: 56px; height: 56px; animation-delay: -2s; }
.burbuja-wa.w3 { bottom: 40px; left: 40px; width: 50px; height: 50px; animation-delay: -3.5s; }
.burbuja-wa.w4 { top: 40px; left: 30px; width: 42px; height: 42px; animation-delay: -1s; opacity: .8; }
@keyframes flotar-giro { 50% { transform: translateY(-12px) rotate(8deg); } }

/* ---------- feature strip */
.franja { padding: 10px 0 40px; }
.franja-in { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.franja article { border-radius: var(--radio); padding: 28px 22px; text-align: center; transition: border-color .2s, transform .2s; }
.franja article:hover { border-color: var(--borde); transform: translateY(-4px); }
.franja h3 { font-size: 18px; margin: 16px 0 8px; }
.franja p { color: var(--suave); font-size: 14.5px; margin: 0; }
.icono {
    width: 62px; height: 62px; margin: 0 auto; border-radius: 50%; display: grid; place-items: center; color: var(--verde);
    border: 1.5px solid rgba(37, 211, 102, 0.55); background: rgba(37, 211, 102, 0.06); box-shadow: 0 0 24px rgba(37, 211, 102, 0.25);
}
.icono svg { width: 28px; height: 28px; }

/* ---------- generic section */
.seccion { padding: 80px 0; }
.seccion h2 { font-size: clamp(32px, 4vw, 46px); font-weight: 800; }
.sub { color: var(--suave); font-size: 17px; margin: 16px 0 0; }
.titulo-centro { text-align: center; max-width: 720px; margin: 0 auto 40px; }

/* control / inbox */
.control { display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px; align-items: center; }
.lista-control { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 16px; }
.lista-control li { padding-left: 34px; position: relative; }
.lista-control li::before {
    content: "✓"; position: absolute; left: 0; top: 2px; width: 22px; height: 22px; border-radius: 7px; display: grid; place-items: center;
    background: rgba(37, 211, 102, 0.15); color: var(--verde); font-weight: 900; font-size: 13px; border: 1px solid rgba(37, 211, 102, 0.4);
}
.lista-control b { display: block; }
.lista-control span { color: var(--suave); font-size: 15px; }
.bandeja { border-radius: 24px; padding: 18px; }
.bandeja-cab { display: flex; justify-content: space-between; align-items: center; padding: 4px 6px 14px; }
.pastilla { font-size: 12px; padding: 3px 10px; border-radius: 999px; background: rgba(37, 211, 102, 0.15); color: var(--verde-claro); border: 1px solid rgba(37, 211, 102, 0.3); }
.chat-fila { display: flex; align-items: center; gap: 12px; padding: 12px; border-radius: 14px; margin-bottom: 8px; background: rgba(255, 255, 255, 0.03); border: 1px solid transparent; }
.chat-fila.activo { border-color: rgba(37, 211, 102, 0.35); background: rgba(37, 211, 102, 0.07); }
.av { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; font-size: 13px; font-weight: 700; background: linear-gradient(160deg, #1f3a2f, #0e1d18); color: var(--verde-claro); }
.txt { flex: 1; min-width: 0; }
.txt b { display: block; font-size: 14px; }
.txt small { color: var(--suave); font-size: 12.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }
.estado { font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 7px; }
.estado.bot { background: rgba(37, 211, 102, 0.14); color: var(--verde-claro); }
.estado.tu { background: rgba(255, 196, 0, 0.14); color: #ffd25e; }
.bandeja-pie { display: flex; align-items: center; gap: 12px; margin-top: 8px; padding: 12px; border-radius: 14px; background: rgba(255, 196, 0, 0.07); border: 1px solid rgba(255, 196, 0, 0.25); font-size: 13px; color: var(--suave); }
.bandeja-pie b { color: #ffd25e; }
.interruptor { width: 40px; height: 22px; border-radius: 99px; background: #3a3f3d; position: relative; flex: 0 0 40px; }
.interruptor i { position: absolute; left: 3px; top: 3px; width: 16px; height: 16px; border-radius: 50%; background: #cfd6d3; }

/* how it works */
.pasos { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 18px; align-items: stretch; }
.pasos-intro { padding-right: 20px; }
.pasos-intro .btn { margin-top: 26px; }
.paso { border-radius: var(--radio); padding: 24px 20px; position: relative; }
.paso .num {
    position: absolute; top: 20px; left: 20px; width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center;
    background: rgba(37, 211, 102, 0.12); color: var(--verde); font-weight: 800; font-size: 14px; border: 1px solid rgba(37, 211, 102, 0.35);
}
.paso-ico { display: grid; place-items: center; width: 52px; height: 52px; margin: 2px 0 18px auto; border-radius: 14px; background: linear-gradient(160deg, #3fef8a, var(--verde-oscuro)); color: #fff; box-shadow: 0 0 24px rgba(37, 211, 102, 0.35); }
.paso-ico svg { width: 28px; height: 28px; }
.paso h3 { font-size: 18px; margin-bottom: 8px; }
.paso p { color: var(--suave); font-size: 14.5px; margin: 0; }

/* facts */
.datos { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.dato { border-radius: var(--radio); padding: 26px 22px; }
.dato b { display: block; font-size: 34px; font-weight: 800; color: var(--verde); letter-spacing: -0.02em; }
.dato span { color: var(--suave); font-size: 14.5px; }

/* plans */
.modalidades { display: inline-flex; gap: 4px; padding: 5px; border-radius: 999px; margin-top: 28px; }
.modalidades button {
    border: 0; background: transparent; color: var(--suave); padding: 10px 20px; border-radius: 999px; font-weight: 600; font-size: 14px; cursor: pointer;
}
.modalidades button small { display: block; font-size: 10.5px; color: var(--verde); font-weight: 600; }
.modalidades button.activo { background: rgba(37, 211, 102, 0.16); color: var(--texto); box-shadow: inset 0 0 0 1px rgba(37, 211, 102, 0.45); }
.planes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.plan { border-radius: 24px; padding: 30px 26px; display: flex; flex-direction: column; position: relative; }
.plan.destacado { border-color: rgba(37, 211, 102, 0.55); background: linear-gradient(180deg, rgba(37, 211, 102, 0.1), rgba(255, 255, 255, 0.04)); box-shadow: 0 0 50px -10px rgba(37, 211, 102, 0.4), var(--sombra); }
.plan .insignia { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); padding: 4px 14px; border-radius: 999px; font-size: 12px; font-weight: 800; background: var(--verde); color: #03140b; white-space: nowrap; }
.plan h3 { font-size: 22px; }
.plan .desc { color: var(--suave); font-size: 14px; margin: 6px 0 20px; min-height: 42px; }
.plan .precio { font-size: 44px; font-weight: 800; letter-spacing: -0.03em; line-height: 1; }
.plan .precio small { font-size: 15px; color: var(--suave); font-weight: 500; letter-spacing: 0; }
.plan .detalle { color: var(--suave); font-size: 13.5px; margin: 8px 0 4px; min-height: 22px; }
.plan .instalacion { font-size: 13.5px; color: var(--suave); padding: 10px 12px; border-radius: 12px; background: rgba(255, 255, 255, 0.04); margin: 14px 0 20px; }
.plan .instalacion b { color: var(--texto); }
.plan ul { list-style: none; padding: 0; margin: 0 0 26px; display: grid; gap: 10px; flex: 1; }
.plan li { display: flex; gap: 10px; font-size: 14.5px; }
.plan li svg { width: 18px; height: 18px; color: var(--verde); flex: 0 0 18px; margin-top: 3px; }
.nota { text-align: center; color: var(--tenue); font-size: 13px; margin: 26px auto 0; max-width: 760px; }

/* FAQ */
.faq { max-width: 820px; }
.faq details { border-radius: 16px; margin-bottom: 12px; padding: 0 22px; }
.faq summary { cursor: pointer; list-style: none; padding: 18px 0; font-weight: 600; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--verde); font-size: 22px; line-height: 1; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details[open] { border-color: rgba(37, 211, 102, 0.35); }
.faq p { color: var(--suave); margin: 0 0 18px; }

/* final CTA */
.cta { padding: 30px 0 90px; }
.cta-in {
    display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; padding: 46px 50px; border-radius: 28px;
    background: linear-gradient(120deg, rgba(37, 211, 102, 0.14), rgba(255, 255, 255, 0.03) 60%);
    border: 1px solid rgba(37, 211, 102, 0.3);
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 0 80px -20px rgba(37, 211, 102, 0.35), var(--sombra);
}
.cta h2 { font-size: clamp(30px, 3.6vw, 42px); font-weight: 800; }
.cta p { color: var(--suave); margin: 0 0 18px; }
.cta-acciones small { display: block; margin-top: 12px; color: var(--tenue); font-size: 13px; }

/* footer */
.pie { padding: 30px 0 40px; border-top: 1px solid var(--borde-2); }
.pie-in { display: flex; flex-wrap: wrap; gap: 18px 30px; align-items: center; justify-content: space-between; }
.pie-in > small { width: 100%; color: var(--tenue); font-size: 12.5px; }
.pie-contacto { display: flex; gap: 22px; color: var(--suave); font-size: 14px; }
.pie-contacto a:hover { color: var(--verde); }

/* floating WhatsApp button */
.wa-flotante {
    position: fixed; right: 22px; bottom: 22px; z-index: 30; width: 60px; height: 60px; border-radius: 50%; display: grid; place-items: center;
    background: linear-gradient(160deg, #3fef8a, var(--verde) 55%, var(--verde-oscuro)); color: #fff;
    box-shadow: 0 12px 30px -6px rgba(37, 211, 102, 0.7); animation: pulso 2.6s ease-in-out infinite;
}
.wa-flotante svg { width: 32px; height: 32px; }
@keyframes pulso { 0%, 100% { box-shadow: 0 12px 30px -6px rgba(37, 211, 102, 0.7), 0 0 0 0 rgba(37, 211, 102, 0.45); } 50% { box-shadow: 0 12px 30px -6px rgba(37, 211, 102, 0.7), 0 0 0 14px rgba(37, 211, 102, 0); } }

/* ---------- animated background: chat bubbles rising, like messages arriving on WhatsApp
   (same idea as the tutarjeta.space landing). Built by app.js. */
#fondo { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.msg-fondo {
    position: absolute; bottom: -70px; padding: 9px 14px; border-radius: 16px 16px 16px 4px; white-space: nowrap;
    font-size: 13px; font-weight: 500; animation: subir linear infinite;
    background: rgba(255, 255, 255, 0.035); border: 1px solid rgba(255, 255, 255, 0.08); color: rgba(225, 240, 233, 0.34);
}
.msg-fondo.bot {
    border-radius: 16px 16px 4px 16px;
    background: rgba(37, 211, 102, 0.07); border-color: rgba(37, 211, 102, 0.2); color: rgba(170, 255, 205, 0.42);
}
@keyframes subir {
    0% { transform: translateY(0); opacity: 0; }
    8%, 85% { opacity: 1; }
    100% { transform: translateY(-118vh); opacity: 0; }
}

/* Reduced motion: stop decorative loops but keep the background slowly moving (app.js makes it 1.5x slower) */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .robot, .burbuja-wa, .aura::after, .wa-flotante, .celular { animation: none; }
    .celular { transform: rotate(-2.5deg); }
}

/* ---------- responsive */
@media (max-width: 1024px) {
    .hero-in, .control { grid-template-columns: 1fr; }
    .hero-visual { min-height: 560px; }
    .franja-in, .datos { grid-template-columns: repeat(2, 1fr); }
    .pasos { grid-template-columns: 1fr 1fr 1fr; }
    .pasos-intro { grid-column: 1 / -1; padding: 0; }
    .planes { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
    .cta-in { grid-template-columns: 1fr; text-align: center; }
}
@media (max-width: 760px) {
    .menu {
        position: fixed; inset: 64px 12px auto; flex-direction: column; padding: 14px; border-radius: 18px; display: none;
        background: rgba(6, 14, 12, 0.92); border: 1px solid var(--borde-2); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    }
    .menu.abierto { display: flex; }
    .barra-in > .btn { display: none; }
    .hamburguesa {
        display: grid; gap: 5px; margin-left: auto; width: 44px; height: 44px; padding: 12px 10px; border-radius: 12px;
        background: var(--vidrio); border: 1px solid var(--borde-2); cursor: pointer;
    }
    .hamburguesa span { display: block; height: 2px; background: var(--texto); border-radius: 2px; }
    .hero { padding-top: 20px; }
    .hero-visual { min-height: 520px; transform: scale(.86); margin: -30px 0; }
    .celular { margin-right: 40px; }
    .robot { width: 220px; right: -25px; bottom: 220px; }
    .pasos, .franja-in, .datos { grid-template-columns: 1fr; }
    .seccion { padding: 56px 0; }
    .cta-in { padding: 34px 22px; }
    .modalidades button { padding: 9px 14px; }
}

/* footer legal links */
.pie-legal { display: flex; gap: 20px; font-size: 14px; }
.pie-legal a { color: var(--suave); }
.pie-legal a:hover { color: var(--verde); }