/* ============================================================
   PINEDIT DESIGN SYSTEM — BASE / RESET
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img, picture, svg, video { display: block; max-width: 100%; }

h1, h2, h3, h4 {
  font-weight: var(--weight-extrabold);
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
}
h1 { font-size: var(--text-2xl); }
h2 { font-size: var(--text-xl); margin-top: var(--space-8); margin-bottom: var(--space-3); }
h3 { font-size: var(--text-lg); }

@media (min-width: 768px) {
  h1 { font-size: var(--text-3xl); }
}

p { color: var(--color-text); }
.pe-muted { color: var(--color-text-muted); }

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

ul, ol { padding-left: 1.25rem; }

button, input, select, textarea { font: inherit; color: inherit; }

/* ---- Focus visibility (accessibility floor) ---- */
:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---- Layout ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.pe-section { padding-block: var(--space-8); }
.pe-section--center { text-align: center; padding-block: var(--space-12); }

.pe-grid { display: grid; gap: var(--space-5); }
.pe-grid--cards { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

.pe-tool-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  padding-block: var(--space-6);
}
@media (min-width: 960px) {
  .pe-tool-layout { grid-template-columns: 2.2fr 1fr; align-items: start; }
}

.pe-empty-state {
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  text-align: center;
}

/* ---- Accessibility utilities ---- */
.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;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -48px;
  background: var(--color-text);
  color: #fff;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top var(--duration-base) var(--ease-standard);
}
.skip-link:focus { top: var(--space-4); }