/* Melanie ERP - sitio informativo. Paleta tomada del propio ERP. */
:root {
  --azul-noche: #071f33;
  --azul-oscuro: #0c3b5e;
  --azul: #1565c0;
  --azul-vivo: #0f6cbd;
  --azul-claro: #42a5f5;
  --azul-hielo: #eef4fb;
  --texto: #1f2328;
  --suave: #5b6470;
  --borde: #e1e4e8;
  --verde: #067647;
  --radio: 16px;
  --sombra: 0 18px 40px -18px rgba(12, 59, 94, .45);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  color: var(--texto);
  background: #fff;
  line-height: 1.6;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--azul); }
:focus-visible { outline: 3px solid var(--azul-claro); outline-offset: 3px; border-radius: 6px; }

.contenedor { width: min(1120px, 92%); margin-inline: auto; }
.solo-lectores { position: absolute; left: -9999px; }

/* ---------- Cabecera ---------- */
.cabecera {
  position: sticky; top: 0; z-index: 20;
  background: rgba(7, 31, 51, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.cabecera .contenedor { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.marca { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-weight: 700; font-size: 19px; letter-spacing: .01em; }
.marca svg { width: 36px; height: 36px; }
.menu { display: flex; align-items: center; gap: 26px; }
.menu a { color: #cfe3f7; text-decoration: none; font-size: 15px; }
.menu a:hover { color: #fff; }

.boton {
  display: inline-block; padding: 12px 24px; border-radius: 999px;
  font-weight: 600; text-decoration: none; border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease;
}
.boton:hover { transform: translateY(-2px); }
.boton-principal { color: #fff; background: linear-gradient(90deg, #1565c0, #2196f3); box-shadow: 0 10px 22px -10px rgba(33, 150, 243, .9); }
.boton-claro { color: #fff; border-color: rgba(255, 255, 255, .45); background: rgba(255, 255, 255, .06); }
.boton-oscuro { color: var(--azul-oscuro); background: #fff; }
.menu .boton { padding: 9px 18px; font-size: 14px; color: #fff; }

/* ---------- Portada ---------- */
.portada {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(900px 500px at 85% 10%, rgba(66, 165, 245, .35), transparent 60%),
    linear-gradient(150deg, #071f33 0%, #0c3b5e 50%, #1565c0 100%);
  padding: 90px 0 110px;
}
.portada::after {
  content: ""; position: absolute; inset: auto -10% -140px -10%; height: 220px;
  background: #fff; border-radius: 50% 50% 0 0 / 100% 100% 0 0;
}
.portada .contenedor { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.etiqueta { display: inline-block; padding: 5px 14px; border-radius: 999px; font-size: 13px; font-weight: 600; letter-spacing: .04em; background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .25); }
.portada h1 { font-size: clamp(34px, 5vw, 56px); line-height: 1.08; margin: 18px 0; letter-spacing: -.02em; }
.portada h1 span { background: linear-gradient(90deg, #9fd0ff, #fff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.portada p { font-size: 19px; color: #d6e8fa; max-width: 54ch; }
.acciones { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

/* Maqueta ilustrativa del panel */
.maqueta {
  background: #fff; border-radius: 18px; padding: 14px; color: var(--texto);
  box-shadow: 0 40px 70px -30px rgba(0, 0, 0, .65);
  transform: perspective(1200px) rotateY(-8deg) rotateX(3deg);
}
.maqueta-barra { display: flex; gap: 6px; padding: 4px 4px 12px; }
.maqueta-barra i { width: 10px; height: 10px; border-radius: 50%; background: #d0d7de; }
.maqueta-barra i:first-child { background: #f87171; }
.maqueta-barra i:nth-child(2) { background: #fbbf24; }
.maqueta-barra i:nth-child(3) { background: #34d399; }
.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.kpi { background: var(--azul-hielo); border-radius: 12px; padding: 12px; }
.kpi small { color: var(--suave); font-size: 11px; }
.kpi b { display: block; font-size: 20px; color: var(--azul-oscuro); }
.kpi em { font-style: normal; font-size: 11px; color: var(--verde); font-weight: 600; }
.grafico { margin-top: 12px; background: var(--azul-hielo); border-radius: 12px; padding: 12px; }
.grafico small { color: var(--suave); font-size: 11px; }
.barras { display: flex; align-items: flex-end; gap: 8px; height: 110px; margin-top: 8px; }
.barras span { flex: 1; border-radius: 6px 6px 0 0; background: linear-gradient(180deg, #42a5f5, #1565c0); }
.lista-m { margin-top: 12px; display: grid; gap: 6px; }
.lista-m div { display: flex; justify-content: space-between; font-size: 12px; padding: 8px 10px; border-radius: 8px; background: #f7f9fc; }
.lista-m span { color: var(--verde); font-weight: 600; }
.nota-maqueta { margin-top: 10px; font-size: 12px; color: #b9d6f2; text-align: center; }

/* ---------- Secciones ---------- */
section { padding: 84px 0; }
.titulo { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.titulo .sobre { color: var(--azul-vivo); font-weight: 700; font-size: 13px; letter-spacing: .12em; text-transform: uppercase; }
.titulo h2 { font-size: clamp(28px, 3.6vw, 40px); line-height: 1.15; margin: 10px 0 12px; color: var(--azul-oscuro); letter-spacing: -.01em; }
.titulo p { color: var(--suave); font-size: 18px; margin: 0; }

.tarjetas { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.tarjeta {
  background: #fff; border: 1px solid var(--borde); border-radius: var(--radio); padding: 26px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.tarjeta:hover { transform: translateY(-4px); box-shadow: var(--sombra); border-color: #b9d6f2; }
.icono {
  width: 48px; height: 48px; border-radius: 13px; display: grid; place-items: center; margin-bottom: 14px;
  background: linear-gradient(145deg, #42a5f5, #0c3b5e); box-shadow: 0 8px 16px -8px rgba(12, 59, 94, .7);
}
.icono svg { width: 24px; height: 24px; stroke: #fff; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.tarjeta h3 { margin: 0 0 6px; font-size: 18px; color: var(--azul-oscuro); }
.tarjeta p { margin: 0; color: var(--suave); font-size: 15px; }

.fondo-hielo { background: var(--azul-hielo); }

/* Ecuador / SRI */
.dos-col { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.dos-col h2 { font-size: clamp(28px, 3.4vw, 38px); line-height: 1.15; margin: 10px 0 14px; color: var(--azul-oscuro); }
.dos-col > div > p { color: var(--suave); font-size: 18px; }
.checks { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 12px; }
.checks li { display: flex; gap: 12px; align-items: flex-start; }
.checks li::before {
  content: "✓"; flex: none; width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center;
  font-size: 14px; font-weight: 700; color: #fff; background: linear-gradient(145deg, #42a5f5, #1565c0); margin-top: 2px;
}
.panel-sri {
  border-radius: 22px; padding: 34px; color: #fff;
  background: linear-gradient(150deg, #071f33, #0c3b5e 55%, #1565c0); box-shadow: var(--sombra);
}
.panel-sri h3 { margin: 0 0 4px; font-size: 22px; }
.panel-sri p { margin: 0 0 18px; color: #cfe3f7; }
.ciclo { display: grid; gap: 10px; counter-reset: paso; }
.ciclo div { counter-increment: paso; display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 12px; background: rgba(255, 255, 255, .09); }
.ciclo div::before { content: counter(paso); flex: none; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; font-size: 14px; background: #fff; color: var(--azul-oscuro); }

/* Pasos */
.pasos { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; counter-reset: p; }
.paso { position: relative; padding: 28px 24px; border-radius: var(--radio); background: #fff; border: 1px solid var(--borde); }
.paso::before { counter-increment: p; content: counter(p); display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; margin-bottom: 12px; font-weight: 700; color: #fff; background: linear-gradient(145deg, #42a5f5, #0c3b5e); }
.paso h3 { margin: 0 0 6px; color: var(--azul-oscuro); }
.paso p { margin: 0; color: var(--suave); font-size: 15px; }

/* Planes */
.planes { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 22px; align-items: stretch; }
.plan { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--borde); border-radius: 20px; padding: 32px 28px; }
.plan.destacado { border: 2px solid var(--azul); box-shadow: var(--sombra); position: relative; }
.plan.destacado::before { content: "Más elegido"; position: absolute; top: -14px; left: 28px; padding: 3px 14px; border-radius: 999px; font-size: 12px; font-weight: 700; color: #fff; background: linear-gradient(90deg, #1565c0, #2196f3); }
.plan h3 { margin: 0; font-size: 22px; color: var(--azul-oscuro); }
.plan .para { color: var(--suave); font-size: 15px; margin: 6px 0 16px; }
.plan ul { list-style: none; padding: 0; margin: 0 0 24px; display: grid; gap: 9px; flex: 1; }
.plan li { display: flex; gap: 10px; font-size: 15px; }
.plan li::before { content: "✓"; color: var(--azul); font-weight: 700; }
.plan .boton { text-align: center; }
.plan .boton-principal-borde { color: var(--azul); border-color: var(--azul); background: #fff; }
.nota { text-align: center; color: var(--suave); font-size: 14px; margin-top: 22px; }

/* Contacto */
.contacto {
  color: #fff; text-align: center;
  background: radial-gradient(700px 360px at 50% 0%, rgba(66, 165, 245, .35), transparent 60%), linear-gradient(150deg, #071f33, #0c3b5e 60%, #1565c0);
}
.contacto h2 { font-size: clamp(28px, 4vw, 42px); margin: 0 0 12px; }
.contacto p { color: #d6e8fa; font-size: 19px; max-width: 56ch; margin: 0 auto 28px; }
.datos { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.dato { padding: 14px 22px; border-radius: 14px; background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .22); color: #fff; text-decoration: none; }
.dato small { display: block; color: #b9d6f2; font-size: 12px; }

/* Pie */
.pie { background: var(--azul-noche); color: #9db9d3; padding: 34px 0; font-size: 14px; }
.pie .contenedor { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; }
.pie .fabricante { display: flex; align-items: center; gap: 14px; }
.pie .fabricante .logo { width: 170px; background: #fff; border-radius: 12px; padding: 8px 12px; }

@media (max-width: 900px) {
  .portada .contenedor, .dos-col { grid-template-columns: 1fr; }
  .maqueta { transform: none; }
  .menu a:not(.boton) { display: none; }
  section { padding: 60px 0; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .boton, .tarjeta { transition: none; }
}