/* Alerta OS — landing pública.
   Paleta tomada del styles.css del producto: azul noche de la sala de control,
   rojo de alerta reservado para lo urgente, turquesa para lo resuelto. */

:root {
  --noche: #071b2c;
  --noche-alta: #0c2740;
  --panel: #0f2e49;
  --linea: #1c3d5a;
  --alerta: #ff5a4f;
  --turquesa: #47cfbd;
  --texto: #eaf2f8;
  --texto-tenue: #9fb6c8;
  --ambar: #f5b544;

  --radio: 14px;
  --radio-g: 22px;
  --ancho: 1160px;
  --ease: cubic-bezier(.16, 1, .3, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--noche);
  color: var(--texto);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.08; letter-spacing: -.035em; margin: 0; text-wrap: balance; }
p { margin: 0; }
img { max-width: 100%; display: block; }

.skip-link {
  position: absolute; left: -9999px; top: 12px;
  background: var(--alerta); color: #fff; padding: 12px 18px;
  border-radius: 10px; font-weight: 700; z-index: 100; text-decoration: none;
}
.skip-link:focus { left: 12px; }

:where(a, button):focus-visible {
  outline: 3px solid var(--turquesa);
  outline-offset: 3px;
  border-radius: 8px;
}

/* ---------- Cabecera ---------- */

.top {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 28px;
  max-width: var(--ancho); margin: auto;
  padding: 16px 24px;
  background: rgba(7, 27, 44, .85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease);
}
.top.fija { border-bottom-color: var(--linea); }

.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 900; font-size: 20px; letter-spacing: -.04em;
  color: var(--texto); text-decoration: none;
}
.brand b { color: var(--turquesa); }

.top nav { display: flex; gap: 26px; margin-left: auto; }
.top nav a {
  color: var(--texto-tenue); text-decoration: none; font-weight: 600; font-size: 15px;
  transition: color .2s var(--ease);
}
.top nav a:hover { color: var(--texto); }

.btn-top {
  padding: 10px 18px; border-radius: 10px;
  background: var(--alerta); color: #fff;
  font-weight: 750; font-size: 15px; text-decoration: none;
  transition: transform .2s var(--ease), filter .2s var(--ease);
}
.btn-top:hover { filter: brightness(1.08); transform: translateY(-1px); }

.menu-btn {
  display: none; margin-left: auto;
  width: 44px; height: 44px; padding: 0;
  background: none; border: 0; cursor: pointer;
  flex-direction: column; align-items: center; justify-content: center; gap: 6px;
}
.menu-btn span {
  display: block; width: 22px; height: 2px; border-radius: 2px;
  background: var(--texto);
  transition: transform .3s var(--ease);
}
.menu-btn[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:last-child  { transform: translateY(-4px) rotate(-45deg); }

.menu-movil {
  display: none; flex-direction: column;
  padding: 8px 24px 22px;
  background: var(--noche);
  border-bottom: 1px solid var(--linea);
  position: sticky; top: 73px; z-index: 49;
}
.menu-movil a {
  padding: 14px 4px; color: var(--texto); text-decoration: none; font-weight: 650;
  border-bottom: 1px solid var(--linea);
}
.menu-movil .btn-menu {
  margin-top: 14px; border: 0; text-align: center;
  background: var(--alerta); color: #fff; border-radius: 11px; padding: 15px;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  max-width: var(--ancho); margin: auto;
  padding: 72px 24px 70px;
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 54px; align-items: center;
}

/* Rejilla tenue: evoca el plano de la sala de control sin competir con el texto. */
.hero-rejilla {
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 72% 22%, rgba(24, 72, 105, .55), transparent 58%),
    linear-gradient(rgba(71, 207, 189, .05) 1px, transparent 1px) 0 0 / 100% 46px,
    linear-gradient(90deg, rgba(71, 207, 189, .05) 1px, transparent 1px) 0 0 / 46px 100%;
  mask-image: radial-gradient(ellipse 80% 70% at 60% 40%, #000 30%, transparent 78%);
  pointer-events: none;
}

.hero-texto { position: relative; }

.hero h1 {
  font-size: clamp(46px, 7.6vw, 90px);
  font-weight: 900; letter-spacing: -.055em;
}
.hero h1 .resalte { color: var(--alerta); }

.lead {
  margin-top: 24px;
  font-size: 19px; color: var(--texto-tenue);
  max-width: 35rem;
}

.hero-acciones { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 32px; }

.btn-primario {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 0 26px;
  border-radius: 12px;
  background: var(--alerta); color: #fff;
  font-weight: 750; font-size: 16px; text-decoration: none;
  box-shadow: 0 10px 26px rgba(255, 90, 79, .3);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), filter .2s var(--ease);
}
.btn-primario:hover {
  filter: brightness(1.08); transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(255, 90, 79, .38);
}

.btn-secundario {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 0 24px;
  border-radius: 12px;
  background: rgba(255, 255, 255, .05); color: var(--texto);
  border: 1px solid var(--linea);
  font-weight: 700; font-size: 16px; text-decoration: none;
  transition: transform .2s var(--ease), border-color .2s var(--ease);
}
.btn-secundario:hover { border-color: var(--turquesa); transform: translateY(-2px); }

.btn-grande { min-height: 58px; padding: 0 34px; font-size: 17px; }

.hero-sellos {
  list-style: none; margin: 28px 0 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 10px 22px;
  font-size: 14px; color: var(--texto-tenue); font-weight: 600;
}
.hero-sellos li { display: flex; align-items: center; gap: 8px; }
.hero-sellos li::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--turquesa);
}

/* ---------- Consola ---------- */

.consola {
  position: relative;
  background: var(--noche-alta);
  border: 1px solid var(--linea);
  border-radius: var(--radio-g);
  padding: 20px;
  box-shadow: 0 30px 70px rgba(0, 0, 0, .45);
}

.consola-top {
  display: flex; align-items: center; gap: 10px;
  padding-bottom: 15px; border-bottom: 1px solid var(--linea);
}
.consola-titulo { font-weight: 800; font-size: 14.5px; letter-spacing: -.01em; }
.consola-hora {
  margin-left: auto; font-size: 13px; color: var(--texto-tenue);
  font-variant-numeric: tabular-nums; font-weight: 700;
}

/* Latido: marca que el tablero esta vivo. Es el unico movimiento continuo. */
.pulso {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--alerta);
  box-shadow: 0 0 0 0 rgba(255, 90, 79, .7);
  animation: latido 2.2s ease-out infinite;
}
@keyframes latido {
  0%   { box-shadow: 0 0 0 0 rgba(255, 90, 79, .7); }
  70%  { box-shadow: 0 0 0 12px rgba(255, 90, 79, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 90, 79, 0); }
}

.incidentes { list-style: none; margin: 0; padding: 0; display: grid; gap: 11px; }
.incidentes li {
  margin-top: 14px;
  padding: 15px 16px;
  border-radius: var(--radio);
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--linea);
}
.incidentes li:first-child { margin-top: 15px; }

.etiqueta {
  display: inline-block; margin-bottom: 9px;
  padding: 4px 9px; border-radius: 999px;
  font-size: 11px; font-weight: 900; letter-spacing: .05em; text-transform: uppercase;
}
.critico .etiqueta { background: rgba(255, 90, 79, .16); color: #ff8d85; }
.medio  .etiqueta { background: rgba(245, 181, 68, .16); color: var(--ambar); }
.bajo   .etiqueta { background: rgba(71, 207, 189, .15); color: var(--turquesa); }

.inc-tipo { font-weight: 750; font-size: 16px; }
.inc-meta { margin-top: 4px; font-size: 13.5px; color: var(--texto-tenue); }

/* ---------- Tira ---------- */

.tira {
  max-width: var(--ancho); margin: 8px auto 0; padding: 26px 24px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px;
  border-top: 1px solid var(--linea); border-bottom: 1px solid var(--linea);
  font-size: 14.5px; color: var(--texto-tenue);
}
.tira b { color: var(--texto); font-weight: 800; }

/* ---------- Flujo ---------- */

.flujo { max-width: var(--ancho); margin: auto; padding: 88px 24px 0; }
.flujo h2 { font-size: clamp(30px, 4.4vw, 46px); font-weight: 900; }
.sub { margin-top: 14px; color: var(--texto-tenue); font-size: 17.5px; }

.etapas {
  margin-top: 44px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--linea);
  border: 1px solid var(--linea);
  border-radius: var(--radio-g);
  overflow: hidden;
}
.etapa {
  background: var(--noche);
  padding: 30px 24px 34px;
  position: relative;
}
/* Barra de progreso implicita: el recorrido avanza de rojo a turquesa. */
.etapa::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
}
.etapa:nth-child(1)::before { background: var(--alerta); }
.etapa:nth-child(2)::before { background: #f5844a; }
.etapa:nth-child(3)::before { background: var(--ambar); }
.etapa:nth-child(4)::before { background: var(--turquesa); }

.etapa h3 { font-size: 19px; font-weight: 800; }
.etapa p { margin-top: 11px; color: var(--texto-tenue); font-size: 15.5px; }

/* ---------- Dual ---------- */

.dual {
  max-width: var(--ancho); margin: auto;
  padding: 88px 24px 0;
  display: grid; grid-template-columns: 1fr 1fr; gap: 26px;
}

.bloque {
  padding: 38px;
  border-radius: var(--radio-g);
  border: 1px solid var(--linea);
  background: linear-gradient(160deg, var(--noche-alta), var(--noche) 70%);
}
.bloque h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 900; }
.bloque > p { margin-top: 12px; color: var(--texto-tenue); font-size: 16.5px; }

.lista-punto { list-style: none; margin: 24px 0 0; padding: 0; display: grid; gap: 13px; }
.lista-punto li {
  position: relative; padding-left: 26px;
  font-size: 15.5px; color: var(--texto);
}
.lista-punto li::before {
  content: ""; position: absolute; left: 0; top: .55em;
  width: 9px; height: 9px; border-radius: 2px;
  background: var(--turquesa);
  transform: rotate(45deg);
}

/* ---------- Seguridad ---------- */

.seguridad { max-width: var(--ancho); margin: auto; padding: 96px 24px 0; }
.seguridad h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 900; }

.medidas {
  margin-top: 40px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.medida { padding-top: 22px; border-top: 2px solid var(--alerta); }
.medida:nth-child(2) { border-top-color: var(--ambar); }
.medida:nth-child(3) { border-top-color: var(--turquesa); }
.medida h3 { font-size: 18px; font-weight: 800; }
.medida p { margin-top: 10px; color: var(--texto-tenue); font-size: 15.5px; }

/* ---------- Cierre ---------- */

.cierre {
  max-width: var(--ancho); margin: 96px auto 90px;
  padding: 70px 32px;
  border-radius: var(--radio-g);
  background:
    radial-gradient(circle at 22% 18%, rgba(255, 90, 79, .22), transparent 55%),
    linear-gradient(140deg, var(--noche-alta), var(--panel));
  border: 1px solid var(--linea);
  text-align: center;
}
.cierre h2 { font-size: clamp(28px, 4.2vw, 44px); font-weight: 900; }
.cierre p { margin-top: 14px; color: var(--texto-tenue); font-size: 17.5px; }
.cierre .btn-primario { margin-top: 30px; }

/* ---------- Pie ---------- */

.pie {
  max-width: var(--ancho); margin: auto;
  padding: 32px 24px 56px;
  border-top: 1px solid var(--linea);
  display: flex; flex-wrap: wrap; align-items: center; gap: 16px 30px;
}
.pie-marca {
  display: flex; align-items: center; gap: 9px;
  font-weight: 900; font-size: 16px; letter-spacing: -.03em;
}
.pie-marca b { color: var(--turquesa); }
.pie-nota { font-size: 13.5px; color: var(--texto-tenue); margin-left: auto; }

/* ---------- Entrada ---------- */

[data-anima] {
  transform: translateY(14px);
  transition: transform .6s var(--ease);
}
[data-anima].entra { transform: none; }

/* ---------- Adaptación ---------- */

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding-top: 46px; }
  .etapas { grid-template-columns: 1fr 1fr; }
  .tira { grid-template-columns: 1fr 1fr; }
  .medidas { grid-template-columns: 1fr; gap: 24px; }
  .dual { grid-template-columns: 1fr; }
  .top nav, .btn-top { display: none; }
  .menu-btn { display: flex; }
  .menu-movil[data-abierto] { display: flex; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .hero { padding: 34px 20px 48px; }
  .etapas { grid-template-columns: 1fr; }
  .tira { grid-template-columns: 1fr; gap: 14px; }
  .bloque { padding: 28px 24px; }
  .flujo, .dual, .seguridad { padding-top: 62px; }
  .cierre { padding: 52px 24px; margin: 68px auto; }
  .pie-nota { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  [data-anima] { opacity: 1 !important; transform: none !important; }
}