/* Bersta Hosting — tema oscuro con acentos de color. Sin dependencias. */
:root {
  color-scheme: dark;
  /* Fondos */
  --base: #0a0e1c;
  --base-2: #0e1428;
  --superficie: #131b33;
  --superficie-2: #1a2442;
  --linea: #263254;
  --linea-2: #33416b;
  /* Texto */
  --tinta: #f3f6ff;
  --texto: #c3cbe4;
  --suave: #8a95b8;
  /* Acentos */
  --cian: #22d3ee;
  --cian-osc: #06b6d4;
  --violeta: #a78bfa;
  --violeta-osc: #8b5cf6;
  --rosa: #f472b6;
  --lima: #a3e635;
  --degradado: linear-gradient(120deg, #22d3ee 0%, #8b5cf6 55%, #f472b6 100%);
  --degradado-btn: linear-gradient(120deg, #06b6d4, #8b5cf6);
  /* Estados */
  --ok: #4ade80;
  --ok-fondo: rgba(74, 222, 128, .12);
  --warn: #fbbf24;
  --warn-fondo: rgba(251, 191, 36, .12);
  --bad: #f87171;
  --bad-fondo: rgba(248, 113, 113, .12);
  --radio: 16px;
  --sombra: 0 1px 0 rgba(255, 255, 255, .04) inset, 0 12px 32px rgba(0, 0, 0, .35);
  --fuente: "Poppins", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--base); }
body { margin: 0; font-family: var(--fuente); color: var(--texto); background: var(--base); line-height: 1.6; font-size: 16px; }
img, svg { max-width: 100%; display: block; }
a { color: var(--cian); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { color: var(--tinta); line-height: 1.2; margin: 0 0 .5em; font-weight: 700; letter-spacing: -.015em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
small, .suave { color: var(--suave); }
::selection { background: rgba(139, 92, 246, .45); color: #fff; }
.contenedor { width: min(1160px, 100% - 32px); margin-inline: auto; }
.angosto { width: min(760px, 100% - 32px); margin-inline: auto; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.texto-degradado { background: var(--degradado); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Botones */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5em; padding: .75em 1.35em; border-radius: 999px; border: 1px solid transparent; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none !important; transition: filter .15s, background .15s, border-color .15s, transform .05s; white-space: nowrap; }
.btn:active { transform: translateY(1px); }
.btn-primario { background: var(--superficie-2); color: var(--tinta); border-color: var(--linea-2); }
.btn-primario:hover { border-color: var(--cian); }
.btn-acento { background: var(--degradado-btn); color: #fff; box-shadow: 0 6px 24px rgba(139, 92, 246, .35); }
.btn-acento:hover { filter: brightness(1.1); }
.btn-borde { background: transparent; color: var(--tinta); border-color: var(--linea-2); }
.btn-borde:hover { border-color: var(--violeta); color: #fff; }
.btn-peligro { background: transparent; color: var(--bad); border-color: rgba(248, 113, 113, .4); }
.btn-chico { padding: .45em .95em; font-size: .88rem; }
.btn-bloque { width: 100%; }
.btn[disabled] { opacity: .45; cursor: not-allowed; filter: grayscale(.6); box-shadow: none; }

/* Encabezado */
.cabecera { position: sticky; top: 0; z-index: 20; background: rgba(10, 14, 28, .78); backdrop-filter: saturate(1.4) blur(12px); border-bottom: 1px solid var(--linea); }
.cabecera .contenedor { display: flex; align-items: center; gap: 24px; min-height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--tinta); font-size: 1.15rem; text-decoration: none !important; }
.logo img { width: 34px; height: 34px; filter: drop-shadow(0 0 12px rgba(34, 211, 238, .35)); }
.nav { display: flex; gap: 22px; margin-left: 8px; }
.nav a { color: var(--texto); font-weight: 500; font-size: .95rem; }
.nav a:hover, .nav a.activo { color: #fff; text-decoration: none; }
.nav a.activo { text-shadow: 0 0 18px rgba(34, 211, 238, .6); }
.acciones { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.carrito-link { position: relative; display: inline-flex; padding: 8px; color: var(--tinta); }
.carrito-link .n { position: absolute; top: -2px; right: -4px; background: var(--rosa); color: #fff; font-size: .7rem; font-weight: 700; border-radius: 999px; min-width: 18px; height: 18px; display: grid; place-items: center; padding: 0 4px; }
.menu-btn { display: none; background: none; border: 0; padding: 8px; cursor: pointer; color: var(--tinta); }

/* Héroe */
.heroe { position: relative; overflow: hidden; padding: 88px 0 64px;
  background:
    radial-gradient(700px 380px at 12% 0%, rgba(34, 211, 238, .22), transparent 65%),
    radial-gradient(760px 420px at 88% 10%, rgba(139, 92, 246, .28), transparent 65%),
    radial-gradient(600px 300px at 60% 110%, rgba(244, 114, 182, .16), transparent 70%),
    var(--base); }
.heroe::after { content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 44px 44px; mask-image: radial-gradient(ellipse at 50% 0%, #000 30%, transparent 75%); }
.heroe .contenedor { position: relative; z-index: 1; }
.heroe .etiqueta { display: inline-flex; gap: 8px; align-items: center; background: rgba(255, 255, 255, .05); color: var(--tinta); border: 1px solid var(--linea-2); border-radius: 999px; padding: .35em .95em; font-size: .85rem; font-weight: 600; margin-bottom: 20px; }
.heroe .etiqueta::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--lima); box-shadow: 0 0 10px var(--lima); }
.heroe h1 .resalta { background: var(--degradado); -webkit-background-clip: text; background-clip: text; color: transparent; }
.heroe p.lead { font-size: 1.15rem; max-width: 660px; color: var(--texto); }
.buscador { display: flex; gap: 8px; background: rgba(19, 27, 51, .85); border: 1px solid var(--linea-2); border-radius: 999px; padding: 6px; box-shadow: 0 0 0 4px rgba(139, 92, 246, .08), var(--sombra); max-width: 700px; margin-top: 30px; }
.buscador:focus-within { border-color: var(--violeta); box-shadow: 0 0 0 4px rgba(139, 92, 246, .22), var(--sombra); }
.buscador input, .buscador input[type=search] { flex: 1; border: 0; outline: 0; font: inherit; font-size: 1.05rem; padding: .6em 1em; background: transparent; min-width: 0; color: var(--tinta); border-radius: 999px; }
.buscador input:focus { outline: 0; }
.buscador input::placeholder { color: var(--suave); }
.tlds-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.chip { background: rgba(255, 255, 255, .04); border: 1px solid var(--linea); border-radius: 999px; padding: .35em .95em; font-size: .9rem; color: var(--texto); }
.chip b { color: var(--tinta); }
a.chip:hover { border-color: var(--cian); text-decoration: none; }

/* Secciones */
.seccion { padding: 80px 0; }
.seccion-gris { background: var(--base-2); border-top: 1px solid var(--linea); border-bottom: 1px solid var(--linea); }
.titulo-seccion { text-align: center; max-width: 740px; margin: 0 auto 44px; }
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.tarjeta { background: linear-gradient(180deg, var(--superficie), rgba(19, 27, 51, .7)); border: 1px solid var(--linea); border-radius: var(--radio); padding: 24px; box-shadow: var(--sombra); }
.icono { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; color: #fff; margin-bottom: 14px; background: var(--degradado-btn); box-shadow: 0 6px 18px rgba(139, 92, 246, .3); }
.grid > .tarjeta:nth-child(3n+2) .icono { background: linear-gradient(120deg, #8b5cf6, #f472b6); }
.grid > .tarjeta:nth-child(3n+3) .icono { background: linear-gradient(120deg, #22d3ee, #a3e635); color: #0a0e1c; }

/* Planes */
.plan { display: flex; flex-direction: column; position: relative; }
.plan.destacado { border: 1px solid transparent; background: linear-gradient(var(--superficie), var(--superficie)) padding-box, var(--degradado) border-box; box-shadow: 0 16px 48px rgba(139, 92, 246, .25); }
.plan .cinta { position: absolute; top: -12px; left: 24px; background: var(--degradado-btn); color: #fff; font-size: .72rem; font-weight: 700; padding: .3em .85em; border-radius: 999px; text-transform: uppercase; letter-spacing: .05em; }
.plan .precio { font-size: 2.1rem; font-weight: 700; color: var(--tinta); line-height: 1.1; margin: 10px 0 2px; }
.plan .precio small { font-size: .9rem; font-weight: 500; }
.plan ul { list-style: none; padding: 0; margin: 18px 0 22px; display: grid; gap: 8px; font-size: .95rem; }
.plan li { display: flex; gap: 8px; align-items: flex-start; }
.plan li::before { content: "✓"; color: var(--cian); font-weight: 700; }
.plan li.no { color: var(--suave); }
.plan li.no::before { content: "–"; color: var(--suave); }
.plan form { margin-top: auto; display: grid; gap: 8px; }

/* Formularios */
label { display: block; font-weight: 600; font-size: .9rem; color: var(--tinta); margin-bottom: 6px; }
.campo { margin-bottom: 16px; }
input[type=text], input[type=email], input[type=password], input[type=tel], input[type=date], input[type=number], input[type=search], select, textarea {
  width: 100%; font: inherit; color: var(--tinta); padding: .7em .9em; border: 1px solid var(--linea-2); border-radius: 10px; background: var(--base-2); }
input::placeholder, textarea::placeholder { color: var(--suave); }
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(139, 92, 246, .35); border-color: var(--violeta); }
select option { background: var(--superficie); color: var(--tinta); }
.ayuda { font-size: .85rem; color: var(--suave); margin-top: 4px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; color: var(--texto); }
.check input { margin-top: 5px; accent-color: var(--violeta-osc); }
.fila { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; }
.fila-3 { display: grid; gap: 16px; grid-template-columns: 2fr 1fr 1fr; }

/* Avisos */
.alerta { border-radius: 12px; padding: 14px 16px; margin-bottom: 18px; border: 1px solid; font-size: .95rem; }
.alerta-ok { background: var(--ok-fondo); border-color: rgba(74, 222, 128, .35); color: #bbf7d0; }
.alerta-error { background: var(--bad-fondo); border-color: rgba(248, 113, 113, .4); color: #fecaca; }
.alerta-aviso { background: var(--warn-fondo); border-color: rgba(251, 191, 36, .4); color: #fde68a; }
.alerta a { color: inherit; text-decoration: underline; }
.alerta ul { margin: 0; padding-left: 18px; }

/* Resultados de dominios */
.resultado { display: flex; align-items: center; gap: 16px; padding: 16px 20px; border-bottom: 1px solid var(--linea); flex-wrap: wrap; }
.resultado:last-child { border-bottom: 0; }
.resultado .nombre { font-weight: 600; color: var(--tinta); font-size: 1.1rem; flex: 1; min-width: 200px; word-break: break-all; }
.resultado .precio { font-weight: 700; color: var(--tinta); }
.resultado .estado { font-size: .9rem; }
.resultado.primero { background: linear-gradient(90deg, rgba(34, 211, 238, .1), rgba(139, 92, 246, .1)); }
.lista { padding: 0; overflow: hidden; }

/* Etiquetas */
.badge { display: inline-block; padding: .22em .75em; border-radius: 999px; font-size: .78rem; font-weight: 600; white-space: nowrap; border: 1px solid transparent; }
.badge-ok { background: var(--ok-fondo); color: var(--ok); border-color: rgba(74, 222, 128, .3); }
.badge-warn { background: var(--warn-fondo); color: var(--warn); border-color: rgba(251, 191, 36, .3); }
.badge-bad { background: var(--bad-fondo); color: var(--bad); border-color: rgba(248, 113, 113, .3); }
.badge-muted { background: rgba(255, 255, 255, .05); color: var(--suave); border-color: var(--linea); }

/* Tablas */
.tabla-envoltura { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .95rem; }
th { text-align: left; font-size: .76rem; text-transform: uppercase; letter-spacing: .05em; color: var(--suave); font-weight: 600; padding: 10px 14px; border-bottom: 1px solid var(--linea); background: rgba(255, 255, 255, .02); }
td { padding: 12px 14px; border-bottom: 1px solid var(--linea); vertical-align: middle; }
tbody tr:hover td { background: rgba(255, 255, 255, .02); }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; white-space: nowrap; }
.totales { margin-left: auto; width: min(320px, 100%); }
.totales div { display: flex; justify-content: space-between; padding: 6px 0; }
.totales .total { border-top: 1px solid var(--linea); margin-top: 6px; padding-top: 10px; font-weight: 700; color: var(--tinta); font-size: 1.15rem; }

/* FAQ */
details { background: var(--superficie); border: 1px solid var(--linea); border-radius: 12px; padding: 0 20px; margin-bottom: 10px; }
details[open] { border-color: var(--linea-2); }
summary { cursor: pointer; padding: 16px 0; font-weight: 600; color: var(--tinta); list-style: none; display: flex; justify-content: space-between; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--cian); font-size: 1.3rem; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { padding-bottom: 14px; }

/* CTA */
.cta { position: relative; overflow: hidden; background: radial-gradient(500px 200px at 15% 0%, rgba(34, 211, 238, .35), transparent 70%), radial-gradient(500px 220px at 90% 100%, rgba(244, 114, 182, .3), transparent 70%), linear-gradient(120deg, #1b1446, #10183a); border: 1px solid var(--linea-2); color: var(--texto); border-radius: 24px; padding: 48px; display: flex; align-items: center; gap: 24px; justify-content: space-between; flex-wrap: wrap; }
.cta h2 { color: #fff; margin: 0 0 6px; }

/* Pie */
.pie { background: #070a15; color: var(--suave); padding: 52px 0 28px; font-size: .92rem; border-top: 1px solid var(--linea); }
.pie a { color: var(--texto); }
.pie a:hover { color: #fff; }
.pie .contenedor > .grid { grid-template-columns: 2fr 1fr 1fr; }
.pie h4 { color: var(--tinta); font-size: .95rem; }
.pie ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.pie .legal { border-top: 1px solid var(--linea); margin-top: 32px; padding-top: 18px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* Área de cliente / admin */
.app { display: grid; grid-template-columns: 248px 1fr; min-height: calc(100vh - 69px); background: var(--base); }
.lateral { background: var(--base-2); border-right: 1px solid var(--linea); padding: 24px 14px; }
.lateral a { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 10px; color: var(--texto); font-weight: 500; margin-bottom: 2px; }
.lateral a:hover { background: rgba(255, 255, 255, .04); color: #fff; text-decoration: none; }
.lateral a.activo { background: linear-gradient(90deg, rgba(34, 211, 238, .16), rgba(139, 92, 246, .16)); color: #fff; box-shadow: inset 2px 0 0 var(--cian); }
.lateral .grupo { font-size: .72rem; text-transform: uppercase; letter-spacing: .07em; color: var(--suave); padding: 18px 12px 6px; font-weight: 600; }
.principal { padding: 32px; min-width: 0; }
.encabezado-pagina { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.encabezado-pagina h1 { font-size: 1.65rem; margin: 0; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(175px, 1fr)); gap: 16px; margin-bottom: 24px; }
.kpi { background: var(--superficie); border: 1px solid var(--linea); border-radius: var(--radio); padding: 18px; position: relative; overflow: hidden; }
.kpi::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--degradado); opacity: .85; }
.kpi .v { font-size: 1.6rem; font-weight: 700; color: var(--tinta); line-height: 1.2; }
.kpi .t { font-size: .85rem; color: var(--suave); }
.panel { background: var(--superficie); border: 1px solid var(--linea); border-radius: var(--radio); margin-bottom: 24px; overflow: hidden; }
.panel > h2, .panel > .cab { font-size: 1.05rem; margin: 0; padding: 16px 20px; border-bottom: 1px solid var(--linea); display: flex; justify-content: space-between; align-items: center; gap: 10px; color: var(--tinta); }
.panel .cuerpo { padding: 20px; }
.panel details { background: var(--base-2); }
.vacio { padding: 28px 20px; text-align: center; color: var(--suave); }
.codigo { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--base-2); border: 1px dashed var(--linea-2); border-radius: 8px; padding: .5em .8em; display: inline-block; user-select: all; color: var(--cian); }
.en-linea { display: inline; }
.prueba { background: var(--warn-fondo); color: var(--warn); text-align: center; font-size: .85rem; padding: 6px; font-weight: 600; border-bottom: 1px solid rgba(251, 191, 36, .3); }

/* Auth */
.auth { min-height: calc(100vh - 69px); display: grid; place-items: center; padding: 40px 16px;
  background: radial-gradient(600px 300px at 20% 10%, rgba(34, 211, 238, .14), transparent 70%), radial-gradient(600px 300px at 80% 90%, rgba(139, 92, 246, .18), transparent 70%), var(--base); }
.auth .tarjeta { width: min(460px, 100%); padding: 32px; }

/* Responsive */
@media (max-width: 960px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .app { grid-template-columns: 1fr; }
  .lateral { display: flex; overflow-x: auto; gap: 4px; padding: 10px; border-right: 0; border-bottom: 1px solid var(--linea); }
  .lateral .grupo { display: none; }
  .lateral a { white-space: nowrap; margin: 0; }
  .principal { padding: 20px 16px; }
}
@media (max-width: 760px) {
  .nav { display: none; position: absolute; top: 68px; left: 0; right: 0; background: var(--base-2); flex-direction: column; gap: 0; border-bottom: 1px solid var(--linea); margin: 0; }
  .nav.abierto { display: flex; }
  .nav a { padding: 14px 16px; border-top: 1px solid var(--linea); }
  .menu-btn { display: inline-flex; }
  .oculto-movil { display: none; }
  .grid-2, .grid-3, .grid-4, .fila, .fila-3 { grid-template-columns: 1fr; }
  .pie .contenedor > .grid { grid-template-columns: 1fr; }
  .heroe { padding: 56px 0 44px; }
  .seccion { padding: 56px 0; }
  .buscador { border-radius: 18px; flex-direction: column; }
  .buscador .btn { width: 100%; }
  .cta { padding: 28px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }