:root {
  color-scheme: dark;
  font-family: "KoHo", system-ui, sans-serif;
  font-size: 16px;
  color: #f6f7fb;
  background: #0b0f1b;
  --yellow: #ffca00;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100svh;
  background: radial-gradient(ellipse at 90% 0, #22234280, transparent 48%), radial-gradient(ellipse at 0 90%, #10333b50, transparent 45%), #0b0f1b;
}
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 3px solid var(--yellow); outline-offset: 6px; }
.portal-shell { width: min(1160px, calc(100% - 64px)); margin: 0 auto; }
.portal-header { min-height: 100px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid #ffffff18; }
.portal-brand { display: flex; align-items: center; gap: 22px; }
.portal-brand img { width: 152px; height: 42px; object-fit: contain; }
.portal-brand span { border-left: 1px solid #ffffff30; padding-left: 22px; font-size: .875rem; letter-spacing: .15em; color: #bdc4d6; }
.back-link { padding: 12px 18px; border: 1px solid #ffffff30; border-radius: 999px; font-size: .9375rem; transition: border-color .2s, color .2s; }
.back-link:hover { color: var(--yellow); border-color: var(--yellow); }
.portal-heading { padding: 42px 0 28px; }
.eyebrow { margin: 0 0 12px; color: var(--yellow); font-size: .875rem; font-weight: 600; letter-spacing: .17em; }
h1 { margin: 0; font-size: clamp(2.25rem, 4.8vw, 3.5rem); font-weight: 600; line-height: 1.1; letter-spacing: -.035em; }
h1 span { color: var(--yellow); }
.portal-intro { margin: 16px 0 0; font-size: 1.0625rem; line-height: 1.5; color: #bcc5d8; }
.app-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 18px; }
.app-card {
  --accent: #ffce36;
  display: flex; flex-direction: column; grid-column: span 2; min-width: 0; padding: 25px;
  background: linear-gradient(145deg, #1b2238, #111726);
  border: 1px solid #ffffff20; border-top: 2px solid var(--accent); border-radius: 20px;
  box-shadow: 0 12px 25px #00000020, inset 0 1px 0 #ffffff07;
  transition: transform .22s, border-color .22s, box-shadow .22s;
}
.app-card:hover, .app-card:focus-visible { transform: translateY(-4px); border-color: var(--accent); box-shadow: 0 16px 32px #00000045, 0 0 18px color-mix(in srgb, var(--accent) 15%, transparent); }
.card-merced { --accent: #63deef; }
.card-puente { --accent: #ab9bff; }
.card-inventario { --accent: #63e0bd; }
.card-direccion { --accent: #ffce36; background: linear-gradient(125deg, #25263a, #141927); }
.app-card-wide { grid-column: span 3; }
.card-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 20px; }
.app-mark { display: grid; place-items: center; width: 44px; height: 44px; flex: 0 0 44px; border: 1px solid #ffffff24; border-radius: 13px; color: var(--accent); font-size: 1.125rem; font-weight: 700; background: #ffffff05; }
.app-category { font-size: .8125rem; letter-spacing: .09em; color: #bec6da; text-align: right; }
.app-card h2 { margin: 0; font-size: 1.75rem; font-weight: 600; line-height: 1.15; }
.app-card p { margin: 12px 0 24px; color: #bcc5d8; font-size: 1rem; line-height: 1.5; }
.app-enter { margin-top: auto; padding-top: 17px; border-top: 1px solid #ffffff18; color: var(--accent); font-weight: 600; font-size: 1rem; }
.access-note { max-width: 740px; color: #aeb8ce; margin: 24px 0 32px; font-size: .9375rem; line-height: 1.6; }
.portal-footer { display: flex; justify-content: space-between; gap: 20px; padding: 20px 0 28px; border-top: 1px solid #ffffff18; color: #9ca8bf; font-size: .875rem; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 10; padding: 14px; border-radius: 8px; background: var(--yellow); color: #111; transform: translateY(-200%); }
.skip-link:focus { transform: none; }
@media (max-width: 900px) {
  .app-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .app-card, .app-card-wide { grid-column: auto; }
  .card-direccion { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .portal-shell { width: calc(100% - 36px); }
  .portal-header { min-height: 82px; gap: 12px; flex-wrap: wrap; padding: 16px 0; }
  .portal-brand img { width: 126px; height: 35px; }
  .portal-brand span { display: none; }
  .back-link { padding: 10px 13px; font-size: .875rem; }
  .portal-heading { padding: 32px 0 24px; }
  .app-grid { grid-template-columns: minmax(0, 1fr); gap: 14px; }
  .card-direccion { grid-column: auto; }
  .app-card { padding: 22px; }
  .card-top { margin-bottom: 15px; }
  .app-card p { margin-bottom: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; }
  .app-card:hover, .app-card:focus-visible { transform: none; }
}