/* Mejoras visuales de la página principal. */

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 1rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  border-radius: 0.75rem;
  background: var(--green);
  color: #fff;
  font-weight: 700;
  transform: translateY(-180%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.nav {
  box-shadow: 0 4px 20px rgba(34, 48, 42, 0.04);
}

.nav.scrolled {
  box-shadow: 0 8px 24px rgba(34, 48, 42, 0.08);
}

header[id],
section[id] {
  scroll-margin-top: 5.5rem;
}

.brand-short {
  display: none;
}

.nav .btn,
.icon-btn,
.nav-toggle-btn {
  min-height: 44px;
}

.icon-btn,
.nav-toggle-btn {
  min-width: 44px;
}

.section-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  min-height: 44px;
  color: var(--green-2);
  font-size: 0.95rem;
  font-weight: 800;
  text-decoration: none;
}

.section-link:hover,
.section-link:focus-visible {
  color: var(--amber-2);
}

.section-link i,
.profile-link i {
  transition: transform 0.2s ease;
}

.section-link:hover i,
.section-link:focus-visible i,
.profile-link:hover i,
.profile-link:focus-visible i {
  transform: translateX(3px);
}

.mobile-sticky-cta {
  display: none;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--green); /* respaldo para navegadores sin color-mix */
  outline: 3px solid color-mix(in srgb, var(--amber) 60%, transparent);
  outline-offset: 3px;
}

@media (max-width: 620px) {
  .nav-inner {
    height: auto;
    min-height: 60px;
    flex-wrap: nowrap;
    gap: 0.4rem;
  }

  .nav .nav-cta {
    display: none;
  }

  .nav .brand {
    flex: 1 1 auto;
    min-width: 0;
    font-size: clamp(0.78rem, 3.5vw, 0.95rem);
  }

  .brand-name {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .nav-actions {
    flex: 0 0 auto;
    min-width: 0;
    gap: 0.35rem;
  }

  .ft-top {
    gap: 1.5rem;
  }

  .ft-cols {
    display: grid;
    width: 100%;
    min-width: 0;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
    gap: 1.1rem 0.9rem;
  }

  .ft-col {
    min-width: 0;
  }

  .ft-col:last-child {
    grid-column: 1 / -1;
  }

  .ft-col a {
    min-width: 0;
    overflow-wrap: anywhere;
  }

  .ft-bottom {
    display: grid;
    gap: 0.5rem;
  }

  .ft-bottom span {
    min-width: 0;
    overflow-wrap: anywhere;
  }

  .profile-link {
    width: 100%;
    justify-content: center;
  }

  .mobile-sticky-cta {
    position: fixed;
    right: 0.85rem;
    bottom: calc(0.8rem + env(safe-area-inset-bottom));
    left: 0.85rem;
    z-index: 45;
    display: flex;
    gap: 0.55rem;
    padding: 0.45rem;
    border: 1px solid rgba(47, 76, 60, 0.18);
    border-radius: 1rem;
    background: var(--surface); /* respaldo para navegadores sin color-mix */
    background: color-mix(in srgb, var(--surface) 92%, transparent);
    box-shadow: 0 12px 34px rgba(34, 48, 42, 0.2);
    backdrop-filter: blur(12px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
  }

  .mobile-sticky-cta.is-hidden {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateY(1rem);
  }

  .mobile-sticky-cta a {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: 0.7rem;
    font-weight: 800;
    text-decoration: none;
  }

  .mobile-sticky-cta a:first-child {
    flex: 1 1 auto;
    min-width: 0;
    background: var(--amber);
    color: #fff;
  }

  .mobile-sticky-cta a:last-child {
    flex: 0 0 auto;
    width: 48px;
    background: #25d366;
    color: #fff;
    font-size: 1.1rem;
  }

  footer.ft {
    padding-bottom: 6.5rem;
  }
}

/* Mantiene los dos accesos táctiles en una fila incluso en celulares estrechos. */
@media (max-width: 360px) {
  .mobile-sticky-cta {
    right: 0.6rem;
    left: 0.6rem;
    gap: 0.4rem;
    padding: 0.4rem;
  }

  .mobile-sticky-cta a:first-child {
    font-size: 0.88rem;
  }

  .mobile-sticky-cta a:last-child {
    width: 44px;
  }
}

@media (max-width: 330px) {
  .nav .brand-name {
    display: none;
  }

  .nav .brand-short {
    display: inline;
  }
}

@media (prefers-reduced-motion: reduce) {
  .section-link i,
  .profile-link i,
  .skip-link {
    transition: none;
  }
}

/* ───────────── Contraste de los botones ámbar ─────────────
   Blanco sobre #C67F3E es 3,2:1 (el mínimo es 4,5:1). En claro se oscurece el ámbar;
   en oscuro el texto pasa a casi negro, que es lo que ya hacía .btn-primary. */
.btn-primary,
.mobile-sticky-cta a:first-child {
  background: #a7632a;
  color: #fff;
}

.btn-primary:hover { background: #8f5522; }

html.dark .btn-primary,
html.dark .mobile-sticky-cta a:first-child {
  background: var(--amber);
  color: #1c130a;
}

html.dark .btn-primary:hover { background: var(--amber-2); }

html.dark .skip-link {
  background: var(--green);
  color: #10231a;
}

/* Anillo de foco más visible (3:1 mínimo contra el papel). */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 3px;
}

html { color-scheme: light; }
html.dark { color-scheme: dark; }