:root {
  --fondo: #0b1110;
  --panel: #131c1a;
  --borde: #22302c;
  --texto: #e9f2ee;
  --apagado: #9fb3ab;
  --neon: #45e08a;
  --neon-osc: #2fbf6f;
  --brasa: #ffb347;
  --redondo: 14px;
  --letra: "Segoe UI", "Helvetica Neue", Roboto, Arial, sans-serif;
  --titulo: "Arial Black", "Segoe UI Black", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

section, article { scroll-margin-top: 80px; }

body {
  margin: 0;
  font-family: var(--letra);
  font-size: 17px;
  line-height: 1.6;
  color: var(--texto);
  background: var(--fondo);
}

a { color: var(--neon); }
a:hover { color: var(--brasa); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--brasa); outline-offset: 3px; border-radius: 6px; }

.caja { max-width: 1140px; margin: 0 auto; padding: 0 16px; }

.cabecera {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 17, 16, .92);
  border-bottom: 1px solid var(--borde);
  backdrop-filter: blur(6px);
}
.cabecera .caja { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px 24px; padding-top: 14px; padding-bottom: 14px; }
.marca { display: inline-flex; align-items: center; gap: 10px; color: var(--neon); text-decoration: none; font-family: var(--titulo); font-size: 1.3rem; }
.marca img { width: 34px; height: 34px; }
.cabecera nav { display: flex; flex-wrap: wrap; gap: 4px 22px; }
.cabecera nav a { color: var(--texto); text-decoration: none; font-weight: 600; font-size: .95rem; padding: 4px 0; border-bottom: 2px solid transparent; }
.cabecera nav a:hover, .cabecera nav a[aria-current] { color: var(--neon); border-color: var(--neon); }

h1, h2, h3 { line-height: 1.15; margin: 0 0 14px; }
h1 { font-family: var(--titulo); font-size: clamp(2rem, 6vw, 3.6rem); text-transform: uppercase; letter-spacing: .02em; }
h2 { font-family: var(--titulo); font-size: clamp(1.6rem, 4vw, 2.4rem); }
h3 { font-size: 1.35rem; margin-bottom: 4px; }

.portada {
  position: relative;
  text-align: center;
  padding: 96px 0 104px;
  background:
    radial-gradient(ellipse at 50% 0, rgba(69, 224, 138, .16), transparent 60%),
    url("../imagenes/rejilla.svg") center / 520px repeat,
    var(--fondo);
  border-bottom: 1px solid var(--borde);
}
.portada p { font-size: 1.15rem; max-width: 640px; margin: 0 auto 30px; color: var(--apagado); }
.pildora { display: inline-block; border: 1px solid var(--neon-osc); color: var(--neon); border-radius: 999px; padding: 4px 14px; font-size: .85rem; margin-bottom: 18px; }

.boton {
  display: inline-block;
  background: var(--neon);
  color: #06100b;
  font-weight: 800;
  padding: 14px 30px;
  border-radius: 10px;
  text-decoration: none;
  box-shadow: 0 0 24px rgba(69, 224, 138, .35);
  transition: transform .15s, background .15s;
}
.boton:hover { background: #7af0ad; color: #06100b; transform: translateY(-2px); }

.tramo { padding: 72px 0; }
.tramo.claro { background: #0f1715; border-top: 1px solid var(--borde); border-bottom: 1px solid var(--borde); }
.centro { text-align: center; }
.centro > p { color: var(--apagado); max-width: 640px; margin: 0 auto; }
.subrayado { display: inline-block; padding-bottom: 8px; border-bottom: 3px dashed var(--neon); }

.ventajas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.ventaja { background: var(--panel); border: 1px solid var(--borde); border-radius: var(--redondo); padding: 30px 26px; text-align: center; }
.ventaja img { width: 56px; height: 56px; margin-bottom: 12px; }
.ventaja p { color: var(--apagado); margin: 0; }

.catalogo { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; margin-top: 40px; }
.ficha {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--borde);
  border-radius: var(--redondo);
  overflow: hidden;
  transition: border-color .2s, transform .2s;
}
.ficha:hover { border-color: var(--neon-osc); transform: translateY(-3px); }
.ficha > img { width: 100%; height: auto; aspect-ratio: 16 / 9; display: block; background: #0f1715; }
.ficha .cuerpo { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.genero { color: var(--neon); font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 10px; }
.ficha p { margin: 0 0 10px; color: #cfdcd6; }
.datos { list-style: none; padding: 0; margin: 10px 0 20px; display: grid; gap: 6px; font-size: .92rem; }
.datos li { display: flex; gap: 10px; border-top: 1px solid var(--borde); padding-top: 6px; }
.datos strong { min-width: 9.5em; color: var(--apagado); font-weight: 600; }
.jugar {
  margin-top: auto;
  display: block;
  text-align: center;
  background: var(--neon);
  color: #06100b;
  font-weight: 800;
  padding: 13px;
  border-radius: 10px;
  text-decoration: none;
}
.jugar:hover { background: #7af0ad; color: #06100b; }

.destacado {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 36px;
  align-items: center;
  background: linear-gradient(135deg, #132a20, var(--panel));
  border: 1px solid var(--neon-osc);
  border-radius: var(--redondo);
  padding: 34px;
}
.destacado img { width: 100%; height: auto; border-radius: 10px; display: block; }
.destacado p { color: #cfdcd6; }
.rotulo { color: var(--brasa); font-weight: 800; text-transform: uppercase; letter-spacing: .1em; font-size: .8rem; }

.reloj { background: var(--panel); border: 1px solid var(--borde); border-radius: var(--redondo); padding: 32px; display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; }
.reloj p { margin: 0 0 10px; color: var(--apagado); }
#reloj { font-family: var(--titulo); font-size: clamp(2.6rem, 8vw, 4.4rem); color: var(--neon); min-width: 4.5ch; text-align: right; text-shadow: 0 0 18px rgba(69, 224, 138, .4); }
#aviso { min-height: 1.6em; color: var(--brasa); }
.botonera { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.botonera button {
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid var(--neon-osc);
  background: transparent;
  color: var(--texto);
  border-radius: 10px;
  padding: 8px 16px;
}
.botonera button:hover { background: var(--neon); color: #06100b; }

.preguntas { max-width: 820px; margin: 30px auto 0; }
details { background: var(--panel); border: 1px solid var(--borde); border-radius: 12px; padding: 16px 20px; margin-top: 12px; }
summary { cursor: pointer; font-weight: 700; }
details p { margin: 10px 0 0; color: var(--apagado); }

.consejos { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.consejos > div { background: var(--panel); border: 1px solid var(--borde); border-radius: var(--redondo); padding: 26px; }
.consejos ul { margin: 0; padding-left: 1.1em; color: #cfdcd6; }
.consejos p { color: #cfdcd6; }

.hoja { padding: 60px 0; }
.hoja article { background: var(--panel); border: 1px solid var(--borde); border-radius: var(--redondo); padding: clamp(22px, 4vw, 44px); max-width: 800px; margin: 0 auto; }
.hoja h1 { font-size: clamp(1.8rem, 4.5vw, 2.6rem); }
.hoja h2 { font-family: var(--letra); font-weight: 800; font-size: 1.35rem; margin-top: 30px; }
.hoja p, .hoja li { color: #cfdcd6; }

.formulario { display: grid; gap: 6px; margin-top: 20px; }
.formulario label { font-weight: 700; margin-top: 10px; }
.formulario input, .formulario textarea {
  font: inherit;
  padding: 12px 14px;
  border: 1px solid var(--borde);
  border-radius: 10px;
  background: var(--fondo);
  color: var(--texto);
}
.formulario input:focus, .formulario textarea:focus { border-color: var(--neon); outline: none; }
.formulario button {
  justify-self: start;
  margin-top: 16px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  border: 0;
  border-radius: 10px;
  padding: 13px 28px;
  background: var(--neon);
  color: #06100b;
}
.formulario button:hover { background: #7af0ad; }

.pie { background: #070b0a; border-top: 1px solid var(--borde); color: var(--apagado); margin-top: 40px; font-size: .92rem; }
.pie .caja { padding-top: 40px; padding-bottom: 40px; }
.pie nav { display: flex; flex-wrap: wrap; gap: 6px 20px; margin-bottom: 20px; }
.pie nav a { color: var(--texto); text-decoration: none; }
.pie nav a:hover { color: var(--neon); }
.pie p { margin: 0 0 12px; max-width: 90ch; }

@media (max-width: 860px) {
  .cabecera { position: static; }
  section, article { scroll-margin-top: 0; }
  .ventajas, .catalogo, .destacado, .consejos, .reloj { grid-template-columns: 1fr; }
  .portada { padding: 64px 0 72px; }
  .tramo { padding: 52px 0; }
  .destacado { padding: 22px; }
  #reloj { text-align: left; }
  .datos strong { min-width: 8em; }
}