/* ==========================================================================
   TalentNetwork.vn - Base layer (reset, typography, layout primitives)
   ========================================================================== */

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

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-variant-numeric: tabular-nums;
}

/* Class-level display rules must never win over the hidden attribute. */
[hidden] { display: none !important; }

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

h1, h2, h3, h4, p, figure, ul, ol, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }

h1, h2, h3, h4 {
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-display);
  font-weight: 700;
  color: var(--ink);
  text-wrap: balance;
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); line-height: var(--lh-snug); letter-spacing: -0.012em; }
h4 { font-size: var(--fs-base); line-height: var(--lh-snug); letter-spacing: 0; }

p { text-wrap: pretty; }

a {
  color: var(--brand-ink);
  text-decoration: none;
  text-underline-offset: 3px;
}
a:hover { text-decoration: underline; }

strong, b { font-weight: 600; }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

::selection { background: var(--brand-tint); color: var(--ink); }

/* ---- Layout primitives ------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--sp-5);
}
@media (min-width: 768px) { .container { padding-inline: var(--sp-8); } }

.section { padding-block: var(--section-y); }
.section--sub { background: var(--bg-sub); }
.section--hairline { border-top: 1px solid var(--line); }

.stack > * + * { margin-top: var(--sp-4); }
.stack-sm > * + * { margin-top: var(--sp-2); }
.stack-lg > * + * { margin-top: var(--sp-6); }

.grid { display: grid; gap: var(--sp-6); }

.section-head { max-width: 62ch; margin-bottom: var(--sp-8); }
.section-head p {
  margin-top: var(--sp-3);
  color: var(--ink-2);
  font-size: var(--fs-lg);
  max-width: 62ch;
}

.lead { font-size: var(--fs-lg); color: var(--ink-2); max-width: 62ch; }
.muted { color: var(--ink-2); }
.faint { color: var(--ink-3); font-size: var(--fs-sm); }
.small { font-size: var(--fs-sm); }

.prose { max-width: 68ch; }
.prose p + p, .prose p + ul, .prose ul + p, .prose h3 { margin-top: var(--sp-4); }
.prose h3 { margin-top: var(--sp-8); }
.prose li { position: relative; padding-left: var(--sp-6); color: var(--ink-2); }
.prose li + li { margin-top: var(--sp-2); }
.prose li::before {
  content: '';
  position: absolute;
  left: var(--sp-2);
  top: 0.7em;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--line-strong);
}

.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(--sp-4); top: var(--sp-4);
  z-index: var(--z-overlay);
  padding: var(--sp-3) var(--sp-4);
  background: var(--brand);
  color: var(--on-brand);
  border-radius: var(--r-control);
  transform: translateY(-200%);
  transition: transform var(--dur) var(--ease);
}
.skip-link:focus-visible { transform: translateY(0); }

.hairline { border: 0; border-top: 1px solid var(--line); margin: 0; }

/* Icon font sizing helper (Phosphor) */
[class*=' ph-'], [class^='ph-'] { line-height: 1; }
.icon-lg { font-size: 1.5rem; }
.icon-xl { font-size: 2rem; }