/* ============================================================================
   Payam Academy — base element styles & brand utilities
   Imported from the design system's tokens/base.css.
   RTL-first: the brand is Persian. Latin runs fall back gracefully.
   ========================================================================= */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  font-weight: var(--fw-regular);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-tight);
  color: var(--text-primary);
  margin: 0;
}
p { margin: 0; text-wrap: pretty; }
a { color: var(--link); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--link-hover); }
img { max-width: 100%; display: block; }
::selection { background: var(--green-900); color: var(--cream-50); }
:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }

/* Editorial eyebrow / overline — small, wide-tracked, uppercase for Latin */
.pa-eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--accent);
  display: inline-block;
}

/* Latin display helper (English words inside Persian layouts) */
.pa-latin { font-family: var(--font-latin); font-style: italic; }

/* Thin brand rule */
.pa-rule { border: 0; border-top: 1px solid var(--border-subtle); margin: 0; }

/* Emerald marble background with soft mottling; add .pa-marble--veined for
   gold veins. Use on dark sections (hero, footer, bands). Children sit above
   the ::before layer. */
.pa-marble {
  position: relative;
  background-color: var(--green-900);
  background-image:
    radial-gradient(60% 45% at 18% 8%, rgba(46, 102, 80, .55), transparent 60%),
    radial-gradient(55% 55% at 82% 26%, rgba(26, 76, 59, .55), transparent 58%),
    radial-gradient(70% 60% at 60% 96%, rgba(8, 34, 26, .75), transparent 62%),
    radial-gradient(42% 34% at 32% 68%, rgba(60, 115, 97, .35), transparent 58%);
  background-size: cover;
}
.pa-marble--veined::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: url('../img/marble-veins.svg');
  background-size: cover;
  background-position: center;
  opacity: .5;
  mix-blend-mode: screen;
}
.pa-marble > * { position: relative; z-index: 1; }

/* Container helpers */
.pa-container { max-width: var(--container-max); margin-inline: auto; padding-inline: var(--gutter); }
.pa-prose { max-width: var(--container-narrow); margin-inline: auto; }

/* Accessibility */
.screen-reader-text {
  border: 0; clip-path: inset(50%); height: 1px; width: 1px;
  margin: -1px; overflow: hidden; padding: 0; position: absolute; word-wrap: normal;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}