/* ============================================================
   main.css — Shared styles for SobreVivi
   WCAG AA: font sizes (16px base), touch targets (44px),
   contrast (darkened palette), prefers-reduced-motion.
   ============================================================ */

/* ── CSS Custom Properties (darkened for WCAG AA) ── */
:root {
  --color-fondo: #F9F3EC;
  --color-crema: #F5EFE6;
  --color-melocoton: #EDD5CB;
  --color-rosa-claro: #E8C4C4;
  --color-rosa-borde: #D4B8AE;
  --color-rosa: #A85555;            /* darkened from #C97B7B for 4.5:1 on light bg */
  --color-rosa-hover: #8F4747;      /* darker hover state */
  --color-rosa-dark: #A85555;       /* alias for blue replacement in admin pages */
  --color-verde-claro: #A8C4A2;
  --color-verde: #7D9E78;
  --color-texto: #4A3D32;           /* darkened from #5C4A3A for 4.5:1 on light bg */
  --color-texto-oscuro: #3B2E24;
  --font-base: 1rem;                /* 16px base */
  --touch-min: 44px;                /* WCAG minimum touch target */
  --radius: 10px;
  --breakpoint-mobile: 1024px;      /* updated from 768px */
}

/* ── Reset and base ── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', sans-serif;
}

body {
  background: var(--color-fondo);
  min-height: 100vh;
}

/* ── Screen-reader-only utility ── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── Touch target utility (WCAG 2.2 AA 44×44px minimum) ── */
.touch-target {
  min-height: var(--touch-min);
  min-width: var(--touch-min);
  padding: 12px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ── Focus-visible: keyboard-only focus ring ── */
.focus-visible:focus-visible {
  outline: 3px solid var(--color-rosa);
  outline-offset: 2px;
  border-radius: var(--radius);
}

/* ── Base button styles ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background .15s, transform .15s;
  border: none;
}
.btn:active {
  transform: scale(.97);
}

/* ── Skip link (keyboard only) ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  z-index: 10000;
  padding: 8px 16px;
  background: var(--color-texto-oscuro);
  color: white;
  text-decoration: none;
  border-radius: 0 0 var(--radius) 0;
  font-weight: 600;
}
.skip-link:focus {
  top: 0;
}

/* ── Sticky bar utility ── */
.sticky-bar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg-primary, #fff);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  padding: 0.75rem 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.sticky-bar .search-bar {
  width: auto;
  flex: 1;
  margin: 0;
  max-width: 600px;
}
.sticky-bar .cart-icon {
  position: static;
  color: var(--color-texto-oscuro);
  background: var(--color-crema);
  flex-shrink: 0;
}

/* ── prefers-reduced-motion: kill all animations ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}