/*
 * Piezas compartidas del portal público (home, concursos, galería, inscripción).
 * Se carga después de layout.css y reutiliza sus tokens (--portal-*).
 */
:root {
  --ui-night: #0b1f3a;
  --ui-gold: #c8a24a;
  --ui-on-dark: rgba(255, 255, 255, 0.74);
  --ui-width: min(1240px, calc(100% - 2rem));
  /* Sin la barra superior, el header sticky mide ~90px. */
  --portal-header-h: 96px;
}

/* ---------- Botones y enlaces ---------- */
.ui-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3rem;
  padding: 0 1.6rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background-color var(--portal-dur-fast) var(--portal-ease),
    color var(--portal-dur-fast) var(--portal-ease),
    border-color var(--portal-dur-fast) var(--portal-ease),
    transform var(--portal-dur-base) var(--portal-ease);
}

.ui-btn:disabled,
.ui-btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.ui-btn--sm {
  min-height: 2.5rem;
  padding: 0 1.1rem;
  font-size: 0.925rem;
}

.ui-btn--primary {
  background: var(--portal-accent-strong);
  color: #fff;
}

.ui-btn--primary:hover:not(:disabled) {
  background: var(--portal-dark);
  color: #fff;
  transform: translateY(-1px);
}

.ui-btn--light {
  background: #fff;
  color: var(--ui-night);
}

.ui-btn--light:hover {
  background: #e7f0fc;
  color: var(--ui-night);
  transform: translateY(-1px);
}

.ui-btn--ghost {
  border-color: rgba(31, 95, 174, 0.35);
  background: transparent;
  color: var(--portal-accent-strong);
}

.ui-btn--ghost:hover:not(:disabled) {
  border-color: var(--portal-accent-strong);
  background: var(--portal-accent-strong);
  color: #fff;
}

.ui-link {
  padding: 0;
  border: 0;
  background: none;
  color: var(--portal-accent-strong);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: rgba(31, 95, 174, 0.35);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.3em;
  cursor: pointer;
  transition: color var(--portal-dur-fast) var(--portal-ease), text-decoration-color var(--portal-dur-fast) var(--portal-ease);
}

.portal-layout .ui-link {
  text-decoration: underline;
}

.ui-link:hover {
  color: var(--portal-accent);
  text-decoration-color: currentColor;
}

.ui-link--light {
  color: #fff;
  text-decoration-color: rgba(255, 255, 255, 0.4);
}

.ui-link--light:hover {
  color: #fff;
}

.ui-dark a:focus-visible,
.ui-dark button:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
  box-shadow: none;
}

/* ---------- Encabezado de páginas internas ---------- */
.ui-page-head {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(50% 120% at 85% 0%, rgba(47, 127, 214, 0.35), transparent 70%),
    var(--ui-night);
  color: #fff;
}

.ui-page-head__inner {
  width: var(--ui-width);
  margin: 0 auto;
  padding-block: clamp(2.5rem, 5vw, 4rem);
}

.ui-page-head__eyebrow {
  margin: 0 0 0.75rem;
  color: var(--ui-on-dark);
  font-size: 0.95rem;
  font-weight: 600;
}

.ui-page-head__eyebrow a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.35);
  text-underline-offset: 0.25em;
}

.ui-page-head__title {
  max-width: 22ch;
  margin: 0;
  color: #fff;
  font-family: var(--portal-font-serif);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.ui-page-head__lead {
  max-width: 40rem;
  margin: 1rem 0 0;
  color: var(--ui-on-dark);
  font-size: 1.1rem;
  line-height: 1.6;
}

/* Trazo del pañuelo, versión discreta para páginas internas. */
.ui-page-head__ribbon {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60%;
  height: 160%;
  pointer-events: none;
}

.ui-page-head__ribbon path {
  fill: none;
  stroke: var(--ui-gold);
  stroke-width: 1.5;
  stroke-linecap: round;
  opacity: 0.45;
  vector-effect: non-scaling-stroke;
}

.ui-container {
  width: var(--ui-width);
  margin: 0 auto;
}

.ui-empty {
  max-width: 36rem;
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 5rem) 0;
  text-align: center;
}

.ui-empty h2 {
  margin: 0 0 0.5rem;
  font-family: var(--portal-font-serif);
  font-size: 1.6rem;
  font-weight: 700;
}

.ui-empty p {
  margin: 0 0 1.5rem;
  color: var(--portal-muted);
}

/* ---------- Footer ---------- */
.portal-footer__admin {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.85rem;
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.25);
  text-underline-offset: 0.25em;
}

.portal-layout .portal-footer__admin {
  text-decoration: underline;
}

.portal-footer__admin:hover {
  color: #fff;
}

@media (max-width: 575.98px) {
  .ui-page-head__ribbon {
    display: none;
  }
}