/* Paleta: fondos oscuros + acentos neón (misma familia de tonos) */
:root {
  --bg-deep: #161922;
  --bg-mid: #1e2330;
  --bg-card: #252b3a;
  --text-primary: #e8ecf4;
  --text-secondary: #9aa3b8;
  --text-muted: #6b7589;
  --border-soft: rgba(255, 255, 255, 0.07);
  --border-hover: rgba(255, 255, 255, 0.12);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --radius-card: 14px;
  --font: "DM Sans", system-ui, -apple-system, sans-serif;

  /* Neón — misma gama que antes, más viva */
  --accent-lin: #4ee8f0;
  --accent-mat: #8b9cff;
  --accent-inter: #ff7eb8;
  --accent-mus: #c77dff;
  --accent-kin: #4dffb0;
  --accent-vis: #3de8e0;
  --accent-intra: #ffd060;
  --accent-nat: #9eff5a;

  --glow-lin: 0 0 18px rgba(78, 232, 240, 0.45), 0 0 40px rgba(78, 232, 240, 0.15);
  --glow-mat: 0 0 18px rgba(139, 156, 255, 0.45), 0 0 40px rgba(139, 156, 255, 0.15);
  --glow-inter: 0 0 18px rgba(255, 126, 184, 0.45), 0 0 40px rgba(255, 126, 184, 0.15);
  --glow-mus: 0 0 18px rgba(199, 125, 255, 0.45), 0 0 40px rgba(199, 125, 255, 0.15);
  --glow-kin: 0 0 18px rgba(77, 255, 176, 0.45), 0 0 40px rgba(77, 255, 176, 0.15);
  --glow-vis: 0 0 18px rgba(61, 232, 224, 0.45), 0 0 40px rgba(61, 232, 224, 0.15);
  --glow-intra: 0 0 18px rgba(255, 208, 96, 0.45), 0 0 40px rgba(255, 208, 96, 0.15);
  --glow-nat: 0 0 18px rgba(158, 255, 90, 0.45), 0 0 40px rgba(158, 255, 90, 0.15);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text-primary);
  background-color: var(--bg-deep);
  background-image:
    linear-gradient(165deg, rgba(22, 25, 34, 0.92) 0%, rgba(30, 35, 48, 0.88) 50%, rgba(22, 25, 34, 0.94) 100%),
    url(testWeb/img/bg-bttn.jpg);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  display: flex;
  flex-direction: column;
}

.page-overlay {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(78, 232, 240, 0.1), transparent 60%),
    radial-gradient(ellipse 60% 50% at 100% 100%, rgba(199, 125, 255, 0.08), transparent 55%),
    radial-gradient(ellipse 50% 40% at 0% 80%, rgba(77, 255, 176, 0.06), transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.site-header,
.menu-main,
.site-footer {
  position: relative;
  z-index: 1;
}

/* —— Encabezado —— */
.site-header {
  text-align: center;
  padding: 3rem 1.5rem 2rem;
  max-width: 640px;
  margin: 0 auto;
}

.site-eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-lin);
  text-shadow: 0 0 12px rgba(78, 232, 240, 0.7);
}

.site-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 5vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.2;
}

.site-subtitle {
  margin: 0;
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* —— Menú en cuadrícula —— */
.menu-main {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: 0 1.25rem 3rem;
}

.intelligence-menu {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  max-width: 960px;
  width: 100%;
}

.menu-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.25rem;
  padding: 1.25rem 1.35rem;
  text-align: left;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-card);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  box-shadow: var(--shadow-card);
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease,
    border-color 0.22s ease,
    background 0.22s ease;
}

.menu-card:focus-visible {
  outline: 2px solid var(--text-secondary);
  outline-offset: 3px;
}

.menu-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 0.35rem;
  font-size: 1.15rem;
  font-weight: 600;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  transition:
    background 0.22s ease,
    transform 0.22s ease,
    box-shadow 0.22s ease,
    text-shadow 0.22s ease;
}

.menu-card__label {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.3;
  transition: text-shadow 0.22s ease;
}

.menu-card__hint {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-muted);
  line-height: 1.4;
  transition: color 0.22s ease;
}

/* Borde neón + brillo suave en reposo */
.menu-card[data-area="lin"] {
  border-left: 3px solid var(--accent-lin);
  box-shadow: var(--shadow-card), inset 3px 0 12px -2px rgba(78, 232, 240, 0.2);
}
.menu-card[data-area="mat"] {
  border-left: 3px solid var(--accent-mat);
  box-shadow: var(--shadow-card), inset 3px 0 12px -2px rgba(139, 156, 255, 0.2);
}
.menu-card[data-area="inter"] {
  border-left: 3px solid var(--accent-inter);
  box-shadow: var(--shadow-card), inset 3px 0 12px -2px rgba(255, 126, 184, 0.2);
}
.menu-card[data-area="mus"] {
  border-left: 3px solid var(--accent-mus);
  box-shadow: var(--shadow-card), inset 3px 0 12px -2px rgba(199, 125, 255, 0.2);
}
.menu-card[data-area="kin"] {
  border-left: 3px solid var(--accent-kin);
  box-shadow: var(--shadow-card), inset 3px 0 12px -2px rgba(77, 255, 176, 0.2);
}
.menu-card[data-area="vis"] {
  border-left: 3px solid var(--accent-vis);
  box-shadow: var(--shadow-card), inset 3px 0 12px -2px rgba(61, 232, 224, 0.2);
}
.menu-card[data-area="intra"] {
  border-left: 3px solid var(--accent-intra);
  box-shadow: var(--shadow-card), inset 3px 0 12px -2px rgba(255, 208, 96, 0.2);
}
.menu-card[data-area="nat"] {
  border-left: 3px solid var(--accent-nat);
  box-shadow: var(--shadow-card), inset 3px 0 12px -2px rgba(158, 255, 90, 0.2);
}

.menu-card[data-area="lin"]  .menu-card__icon { color: var(--accent-lin); text-shadow: 0 0 10px rgba(78, 232, 240, 0.8); }
.menu-card[data-area="mat"]  .menu-card__icon { color: var(--accent-mat); text-shadow: 0 0 10px rgba(139, 156, 255, 0.8); }
.menu-card[data-area="inter"] .menu-card__icon { color: var(--accent-inter); text-shadow: 0 0 10px rgba(255, 126, 184, 0.8); }
.menu-card[data-area="mus"]  .menu-card__icon { color: var(--accent-mus); text-shadow: 0 0 10px rgba(199, 125, 255, 0.8); }
.menu-card[data-area="kin"]  .menu-card__icon { color: var(--accent-kin); text-shadow: 0 0 10px rgba(77, 255, 176, 0.8); }
.menu-card[data-area="vis"]  .menu-card__icon { color: var(--accent-vis); text-shadow: 0 0 10px rgba(61, 232, 224, 0.8); }
.menu-card[data-area="intra"] .menu-card__icon { color: var(--accent-intra); text-shadow: 0 0 10px rgba(255, 208, 96, 0.8); }
.menu-card[data-area="nat"]  .menu-card__icon { color: var(--accent-nat); text-shadow: 0 0 10px rgba(158, 255, 90, 0.8); }

.menu-card[data-area="lin"]  .menu-card__icon { background: rgba(78, 232, 240, 0.1); }
.menu-card[data-area="mat"]  .menu-card__icon { background: rgba(139, 156, 255, 0.1); }
.menu-card[data-area="inter"] .menu-card__icon { background: rgba(255, 126, 184, 0.1); }
.menu-card[data-area="mus"]  .menu-card__icon { background: rgba(199, 125, 255, 0.1); }
.menu-card[data-area="kin"]  .menu-card__icon { background: rgba(77, 255, 176, 0.1); }
.menu-card[data-area="vis"]  .menu-card__icon { background: rgba(61, 232, 224, 0.1); }
.menu-card[data-area="intra"] .menu-card__icon { background: rgba(255, 208, 96, 0.1); }
.menu-card[data-area="nat"]  .menu-card__icon { background: rgba(158, 255, 90, 0.1); }

/* Hover: resplandor neón más intenso */
.menu-card[data-area="lin"]:hover  { border-color: rgba(78, 232, 240, 0.35);  box-shadow: var(--shadow-card), var(--glow-lin); }
.menu-card[data-area="mat"]:hover  { border-color: rgba(139, 156, 255, 0.35); box-shadow: var(--shadow-card), var(--glow-mat); }
.menu-card[data-area="inter"]:hover { border-color: rgba(255, 126, 184, 0.35); box-shadow: var(--shadow-card), var(--glow-inter); }
.menu-card[data-area="mus"]:hover  { border-color: rgba(199, 125, 255, 0.35); box-shadow: var(--shadow-card), var(--glow-mus); }
.menu-card[data-area="kin"]:hover  { border-color: rgba(77, 255, 176, 0.35);  box-shadow: var(--shadow-card), var(--glow-kin); }
.menu-card[data-area="vis"]:hover  { border-color: rgba(61, 232, 224, 0.35);  box-shadow: var(--shadow-card), var(--glow-vis); }
.menu-card[data-area="intra"]:hover { border-color: rgba(255, 208, 96, 0.35);  box-shadow: var(--shadow-card), var(--glow-intra); }
.menu-card[data-area="nat"]:hover  { border-color: rgba(158, 255, 90, 0.35);   box-shadow: var(--shadow-card), var(--glow-nat); }

.menu-card:hover {
  transform: translateY(-3px);
  background: #2a3142;
}

.menu-card:hover .menu-card__hint {
  color: var(--text-secondary);
}

.menu-card:hover .menu-card__icon {
  transform: scale(1.08);
}

.menu-card[data-area="lin"]:hover  .menu-card__label { text-shadow: 0 0 14px rgba(78, 232, 240, 0.5); }
.menu-card[data-area="mat"]:hover  .menu-card__label { text-shadow: 0 0 14px rgba(139, 156, 255, 0.5); }
.menu-card[data-area="inter"]:hover .menu-card__label { text-shadow: 0 0 14px rgba(255, 126, 184, 0.5); }
.menu-card[data-area="mus"]:hover  .menu-card__label { text-shadow: 0 0 14px rgba(199, 125, 255, 0.5); }
.menu-card[data-area="kin"]:hover  .menu-card__label { text-shadow: 0 0 14px rgba(77, 255, 176, 0.5); }
.menu-card[data-area="vis"]:hover  .menu-card__label { text-shadow: 0 0 14px rgba(61, 232, 224, 0.5); }
.menu-card[data-area="intra"]:hover .menu-card__label { text-shadow: 0 0 14px rgba(255, 208, 96, 0.5); }
.menu-card[data-area="nat"]:hover  .menu-card__label { text-shadow: 0 0 14px rgba(158, 255, 90, 0.5); }

.menu-card[data-area="lin"]:hover  .menu-card__icon { box-shadow: 0 0 16px rgba(78, 232, 240, 0.5); }
.menu-card[data-area="mat"]:hover  .menu-card__icon { box-shadow: 0 0 16px rgba(139, 156, 255, 0.5); }
.menu-card[data-area="inter"]:hover .menu-card__icon { box-shadow: 0 0 16px rgba(255, 126, 184, 0.5); }
.menu-card[data-area="mus"]:hover  .menu-card__icon { box-shadow: 0 0 16px rgba(199, 125, 255, 0.5); }
.menu-card[data-area="kin"]:hover  .menu-card__icon { box-shadow: 0 0 16px rgba(77, 255, 176, 0.5); }
.menu-card[data-area="vis"]:hover  .menu-card__icon { box-shadow: 0 0 16px rgba(61, 232, 224, 0.5); }
.menu-card[data-area="intra"]:hover .menu-card__icon { box-shadow: 0 0 16px rgba(255, 208, 96, 0.5); }
.menu-card[data-area="nat"]:hover  .menu-card__icon { box-shadow: 0 0 16px rgba(158, 255, 90, 0.5); }

.menu-card:active {
  transform: translateY(-1px);
}

/* —— Pie —— */
.site-footer {
  text-align: center;
  padding: 1.5rem;
}

.site-footer p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* —— Responsive —— */
@media (max-width: 480px) {
  .site-header {
    padding: 2rem 1rem 1.5rem;
  }

  .intelligence-menu {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .menu-card {
    padding: 1.1rem 1.2rem;
  }
}

@media (min-width: 768px) {
  .intelligence-menu {
    gap: 1.15rem;
  }
}