/* ============================================================================
   arca360 · Vitrina pública (landing). Hoja autocontenida (no depende de app.css).
   Diseño: minimalista, orientado a conversión. Base navy + acento esmeralda
   (confianza + cumplimiento). Tipografía del sistema, ritmo vertical amplio.
   ========================================================================== */

:root {
  --navy-900: #0b1a30;
  --navy-800: #0f2340;
  --navy-700: #16305a;
  --tinta: #1a2536;
  --gris: #57637a;
  --gris-cl: #8b97ac;
  --linea: #e6eaf1;
  --fondo: #f6f8fb;
  --panel: #ffffff;
  --acento: #10b981;      /* esmeralda */
  --acento-osc: #0e9f70;
  --acento-cl: #e7f8f1;
  --azul: #2f6fed;
  --azul-cl: #eaf1fe;
  --amarillo: #f7c948;
  --radio: 14px;
  --radio-sm: 10px;
  --sombra: 0 2px 4px rgba(15, 30, 55, .05), 0 8px 24px rgba(15, 30, 55, .07);
  --sombra-fuerte: 0 12px 40px rgba(15, 30, 55, .16);
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --ancho: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; font-family: var(--sans); color: var(--tinta); background: var(--panel);
  line-height: 1.6; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.contenedor { width: 100%; max-width: var(--ancho); margin: 0 auto; padding: 0 24px; }

/* ── Botones ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 26px; border-radius: 999px; font-weight: 700; font-size: 16px;
  cursor: pointer; border: 2px solid transparent; transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-acento { background: var(--acento); color: #fff; box-shadow: 0 6px 18px rgba(16, 185, 129, .35); }
.btn-acento:hover { background: var(--acento-osc); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(16, 185, 129, .42); }
.btn-claro { background: #fff; color: var(--navy-800); border-color: #fff; }
.btn-claro:hover { transform: translateY(-2px); box-shadow: var(--sombra-fuerte); }
.btn-linea { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .5); }
.btn-linea:hover { border-color: #fff; background: rgba(255, 255, 255, .08); }
.btn-oscuro { background: var(--navy-800); color: #fff; }
.btn-oscuro:hover { background: var(--navy-700); transform: translateY(-2px); box-shadow: var(--sombra); }
.btn-lg { padding: 16px 32px; font-size: 17px; }

/* ── Barra de navegación ─────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50; background: rgba(11, 26, 48, .0);
  transition: background .25s ease, box-shadow .25s ease; padding: 16px 0;
}
.nav.solida { background: rgba(11, 26, 48, .92); backdrop-filter: saturate(140%) blur(8px); box-shadow: 0 1px 0 rgba(255, 255, 255, .06); }
.nav-fila { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.marca { display: inline-flex; align-items: baseline; gap: 2px; font-weight: 800; font-size: 24px; letter-spacing: -.02em; color: #fff; }
.marca .n360 { color: var(--acento); }
.marca-sub { display: block; font-size: 11px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--gris-cl); margin-top: 2px; }
.nav-menu { display: flex; align-items: center; gap: 30px; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a.enlace { color: rgba(255, 255, 255, .82); font-weight: 600; font-size: 15px; }
.nav-links a.enlace:hover { color: #fff; }
.nav-acciones { display: flex; align-items: center; gap: 12px; }
.nav-burger { display: none; background: none; border: 0; color: #fff; font-size: 26px; cursor: pointer; }

/* ── Hero ────────────────────────────────────────────────────────────────── */
.hero {
  position: relative; color: #fff; overflow: hidden;
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(16, 185, 129, .22), transparent 60%),
    radial-gradient(900px 500px at 0% 10%, rgba(47, 111, 237, .20), transparent 55%),
    linear-gradient(160deg, var(--navy-900), var(--navy-800) 60%, var(--navy-700));
  margin-top: -76px; padding-top: 76px;
}
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; padding: 72px 0 88px; }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 14px; border-radius: 999px;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .16);
  font-size: 13px; font-weight: 700; letter-spacing: .04em; color: #cfe9dd; margin-bottom: 22px;
}
.hero h1 { font-size: clamp(34px, 5vw, 54px); line-height: 1.08; letter-spacing: -.02em; margin: 0 0 18px; font-weight: 800; }
.hero h1 .destaca { color: var(--acento); }
.hero p.bajada { font-size: clamp(17px, 2.2vw, 20px); color: rgba(255, 255, 255, .84); margin: 0 0 30px; max-width: 33em; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 22px; }
.hero-nota { font-size: 14px; color: rgba(255, 255, 255, .6); display: flex; align-items: center; gap: 8px; }
.hero-nota b { color: #fff; }

/* ── Cuenta regresiva ────────────────────────────────────────────────────── */
.reloj-card {
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 20px; padding: 28px; backdrop-filter: blur(6px); box-shadow: var(--sombra-fuerte);
}
.reloj-tit { font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: #bfe9d7; margin-bottom: 4px; }
.reloj-sub { font-size: 15px; color: rgba(255, 255, 255, .7); margin-bottom: 20px; }
.reloj { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.reloj-celda { background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .12); border-radius: 12px; padding: 14px 6px; text-align: center; }
.reloj-num { font-size: clamp(26px, 4vw, 40px); font-weight: 800; line-height: 1; font-variant-numeric: tabular-nums; color: #fff; }
.reloj-lbl { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--gris-cl); margin-top: 8px; }
.reloj-pie { margin-top: 18px; font-size: 13px; color: rgba(255, 255, 255, .62); text-align: center; }
.reloj-fin { text-align: center; padding: 10px; font-weight: 700; color: var(--amarillo); }

/* ── Cinta de logos/confianza ────────────────────────────────────────────── */
.cinta { background: var(--navy-800); color: rgba(255, 255, 255, .8); }
.cinta-fila { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 14px 40px; padding: 22px 0; font-size: 14px; }
.cinta-item { display: inline-flex; align-items: center; gap: 9px; font-weight: 600; }
.cinta-item .ico { color: var(--acento); font-size: 18px; }

/* ── Secciones ───────────────────────────────────────────────────────────── */
section { padding: 84px 0; }
.sec-alt { background: var(--fondo); }
.sec-head { max-width: 720px; margin: 0 auto 52px; text-align: center; }
.sec-kicker { font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--acento-osc); }
.sec-head h2 { font-size: clamp(28px, 4vw, 40px); line-height: 1.14; letter-spacing: -.02em; margin: 10px 0 14px; font-weight: 800; color: var(--navy-900); }
.sec-head p { font-size: 18px; color: var(--gris); margin: 0; }

/* ── Urgencia ────────────────────────────────────────────────────────────── */
.urgencia { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.urg-card { background: var(--panel); border: 1px solid var(--linea); border-radius: var(--radio); padding: 30px; box-shadow: var(--sombra); }
.urg-card .cifra { font-size: 34px; font-weight: 800; color: var(--navy-800); letter-spacing: -.02em; }
.urg-card .cifra span { color: var(--acento-osc); }
.urg-card h3 { margin: 6px 0 8px; font-size: 19px; color: var(--navy-900); }
.urg-card p { margin: 0; color: var(--gris); font-size: 15.5px; }

/* ── Escala de multas ────────────────────────────────────────────────────── */
.multas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 22px; }
.multa {
  background: var(--panel); border: 1px solid var(--linea); border-left: 5px solid var(--gris-cl);
  border-radius: var(--radio); padding: 22px 24px; box-shadow: var(--sombra);
}
.multa-cab { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.multa-nivel { font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.multa-utm { font-size: 22px; font-weight: 800; letter-spacing: -.01em; color: var(--navy-900); }
.multa p { margin: 0; color: var(--gris); font-size: 14.5px; }
.multa-leve { border-left-color: #d6a200; }
.multa-leve .multa-nivel { color: #b7791f; }
.multa-grave { border-left-color: #d9622b; }
.multa-grave .multa-nivel { color: #c05621; }
.multa-gravisima { border-left-color: #c62f3b; }
.multa-gravisima .multa-nivel { color: #b02a37; }
.multa-gravisima .multa-utm { color: #b02a37; }
.multas-nota { text-align: center; margin: 16px 0 0; font-size: 13px; color: var(--gris-cl); }

/* ── Beneficios / módulos ────────────────────────────────────────────────── */
.grid-benef { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.benef {
  background: var(--panel); border: 1px solid var(--linea); border-radius: var(--radio);
  padding: 28px; box-shadow: var(--sombra); transition: transform .14s ease, box-shadow .14s ease, border-color .14s ease;
}
.benef:hover { transform: translateY(-4px); box-shadow: var(--sombra-fuerte); border-color: #d5f1e6; }
.benef .ico { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 12px; background: var(--acento-cl); font-size: 24px; margin-bottom: 16px; }
.benef h3 { margin: 0 0 8px; font-size: 18.5px; color: var(--navy-900); }
.benef p { margin: 0; color: var(--gris); font-size: 15.5px; }

/* ── Pasos ───────────────────────────────────────────────────────────────── */
.pasos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; counter-reset: paso; }
.paso { position: relative; background: var(--panel); border: 1px solid var(--linea); border-radius: var(--radio); padding: 32px 28px; box-shadow: var(--sombra); }
.paso::before {
  counter-increment: paso; content: counter(paso); position: absolute; top: -18px; left: 28px;
  width: 40px; height: 40px; border-radius: 50%; background: var(--navy-800); color: #fff;
  display: grid; place-items: center; font-weight: 800; font-size: 18px; box-shadow: var(--sombra);
}
.paso h3 { margin: 14px 0 8px; font-size: 19px; color: var(--navy-900); }
.paso p { margin: 0; color: var(--gris); font-size: 15.5px; }

/* ── Franja diferenciadores (split) ──────────────────────────────────────── */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.split-lista { list-style: none; margin: 20px 0 0; padding: 0; display: grid; gap: 18px; }
.split-lista li { display: flex; gap: 14px; align-items: flex-start; }
.split-lista .check { flex: 0 0 auto; width: 26px; height: 26px; border-radius: 50%; background: var(--acento-cl); color: var(--acento-osc); display: grid; place-items: center; font-weight: 800; }
.split-lista b { color: var(--navy-900); }
.split-lista span { color: var(--gris); }
.panel-visual {
  background: linear-gradient(160deg, var(--navy-800), var(--navy-700)); border-radius: 20px; padding: 30px;
  color: #fff; box-shadow: var(--sombra-fuerte);
}
.pv-row { display: flex; align-items: center; gap: 12px; padding: 14px 0; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.pv-row:last-child { border-bottom: 0; }
.pv-badge { margin-left: auto; font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 999px; }
.pv-ok { background: rgba(16, 185, 129, .18); color: #6ee7b7; }
.pv-warn { background: rgba(247, 201, 72, .18); color: #fde68a; }
.pv-dot { width: 10px; height: 10px; border-radius: 50%; }
.pv-dot.ok { background: var(--acento); } .pv-dot.warn { background: var(--amarillo); }
.pv-txt { font-size: 15px; color: rgba(255, 255, 255, .9); }

/* ── CTA final + contacto ────────────────────────────────────────────────── */
.cta {
  color: #fff;
  background:
    radial-gradient(800px 400px at 90% 0%, rgba(16, 185, 129, .25), transparent 60%),
    linear-gradient(160deg, var(--navy-900), var(--navy-700));
}
.cta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.cta h2 { font-size: clamp(28px, 4vw, 38px); line-height: 1.14; margin: 0 0 14px; letter-spacing: -.02em; }
.cta p.bajada { color: rgba(255, 255, 255, .82); font-size: 18px; margin: 0 0 26px; }
.cta-contacto { list-style: none; margin: 26px 0 0; padding: 0; display: grid; gap: 14px; }
.cta-contacto li { display: flex; align-items: center; gap: 12px; color: rgba(255, 255, 255, .9); }
.cta-contacto .ico { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 10px; background: rgba(255, 255, 255, .08); font-size: 18px; }
.cta-contacto a:hover { color: var(--acento); }

.form {
  background: var(--panel); color: var(--tinta); border-radius: 18px; padding: 30px; box-shadow: var(--sombra-fuerte);
}
.form h3 { margin: 0 0 4px; font-size: 21px; color: var(--navy-900); }
.form .form-sub { margin: 0 0 20px; color: var(--gris); font-size: 14.5px; }
.campo { margin-bottom: 14px; }
.campo label { display: block; font-size: 13.5px; font-weight: 700; color: var(--navy-800); margin-bottom: 6px; }
.campo input, .campo textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--linea); border-radius: var(--radio-sm);
  font-size: 15px; font-family: var(--sans); color: var(--tinta); background: #fcfdff;
}
.campo input:focus, .campo textarea:focus { outline: none; border-color: var(--acento); box-shadow: 0 0 0 3px rgba(16, 185, 129, .14); }
.campo textarea { resize: vertical; min-height: 96px; }
.campo-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.oculto-bot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form .btn { width: 100%; margin-top: 6px; }
.form-legal { margin: 14px 0 0; font-size: 12.5px; color: var(--gris-cl); text-align: center; }
.aviso {
  padding: 12px 14px; border-radius: var(--radio-sm); font-weight: 600; font-size: 14.5px; margin-bottom: 16px;
}
.aviso-ok { background: var(--acento-cl); color: var(--acento-osc); }
.aviso-err { background: #fdecec; color: #c0392b; }

/* ── Pie ─────────────────────────────────────────────────────────────────── */
.pie { background: var(--navy-900); color: rgba(255, 255, 255, .72); padding: 46px 0 30px; }
.pie-grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 28px; align-items: flex-start; }
.pie .marca { font-size: 21px; }
.pie-desc { max-width: 30em; font-size: 14.5px; color: rgba(255, 255, 255, .6); margin-top: 12px; }
.pie-cols { display: flex; gap: 60px; flex-wrap: wrap; }
.pie-col h4 { font-size: 13px; letter-spacing: .1em; text-transform: uppercase; color: var(--gris-cl); margin: 0 0 12px; }
.pie-col a, .pie-col span { display: block; font-size: 14.5px; margin-bottom: 8px; color: rgba(255, 255, 255, .78); }
.pie-col a:hover { color: var(--acento); }
.pie-base { margin-top: 34px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .1); font-size: 13px; color: rgba(255, 255, 255, .5); display: flex; flex-wrap: wrap; gap: 10px 24px; justify-content: space-between; }

/* ── Animación de entrada (mejora progresiva) ────────────────────────────────
   Por defecto todo es visible; solo con JS (clase .js en <html>) se oculta para
   revelarse al hacer scroll. Así, sin JS o si el observador falla, nada queda en
   blanco. */
.aparece { transition: opacity .6s ease, transform .6s ease; }
.js .aparece { opacity: 0; transform: translateY(18px); }
.js .aparece.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .aparece { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-grid, .split, .cta-grid { grid-template-columns: 1fr; }
  .hero-grid { padding: 48px 0 60px; gap: 34px; }
  .urgencia, .grid-benef, .pasos { grid-template-columns: 1fr 1fr; }
  .nav-menu { display: none; }
  .nav-burger { display: block; }
  .nav.abierta .nav-menu {
    display: flex; position: absolute; top: 66px; left: 16px; right: 16px; flex-direction: column;
    align-items: stretch; gap: 10px; background: var(--navy-800); border: 1px solid rgba(255, 255, 255, .12);
    border-radius: 14px; padding: 16px; box-shadow: var(--sombra-fuerte);
  }
  .nav.abierta .nav-links { flex-direction: column; align-items: stretch; gap: 4px; }
  .nav.abierta .nav-links a.enlace { padding: 10px 8px; }
  .nav.abierta .nav-acciones { flex-direction: column; align-items: stretch; gap: 10px; }
}
@media (max-width: 560px) {
  section { padding: 60px 0; }
  .urgencia, .grid-benef, .pasos, .campo-2 { grid-template-columns: 1fr; }
  .reloj-celda { padding: 12px 4px; }
  .hero-cta .btn { width: 100%; }
}

.campo-check { margin-bottom: 10px; }
.check-linea { display: flex; align-items: flex-start; gap: 10px; font-size: 13.5px; color: var(--gris); line-height: 1.5; cursor: pointer; }
.check-linea input[type="checkbox"] { flex: 0 0 auto; width: 18px; height: 18px; margin-top: 1px; accent-color: var(--acento); cursor: pointer; }
.check-linea a { color: var(--acento-osc); font-weight: 600; }
.form-aviso { margin: 14px 0 0; font-size: 12px; color: var(--gris-cl); line-height: 1.55; background: var(--fondo); border: 1px solid var(--linea); border-radius: var(--radio-sm); padding: 12px 14px; }
.form-aviso strong { color: var(--gris); }