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

body {
  margin: 0;
  font-family: var(--font-en);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-on-light-primary);
  background: var(--bg-light-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

[lang="he"] body { font-family: var(--font-he); }

img { max-width: 100%; height: auto; display: block; }
button { font: inherit; cursor: pointer; background: none; border: none; padding: 0; }
a { color: inherit; text-decoration: none; }

:focus-visible {
  outline: 2px solid var(--accent-green);
  outline-offset: 2px;
}

h1, h2, h3, h4, h5 {
  margin: 0;
  font-weight: var(--weight-bold);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-tight);
}

p { margin: 0; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--section-padding-x);
}

.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--section-padding-x);
}

.dark-section {
  background: var(--bg-dark-primary);
  color: var(--text-on-dark-primary);
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  padding: var(--section-padding-y) var(--section-padding-x);
}

.light-section {
  background: var(--bg-light-secondary);
  color: var(--text-on-light-primary);
  padding: var(--section-padding-y) var(--section-padding-x);
}

.light-section.alt { background: var(--bg-light-primary); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--accent-green-border);
  border-radius: 9999px;
  font-size: var(--text-xs);
  color: var(--accent-green);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  font-weight: var(--weight-bold);
  background: var(--accent-green-subtle);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--accent-green);
  color: white;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--space-2);
  font-weight: var(--weight-semibold);
  font-size: var(--text-sm);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
  transition: all 0.15s ease;
}

.btn-primary:hover {
  background: var(--accent-green-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: transparent;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--space-2);
  border: 1.5px solid var(--border-on-dark-default);
  font-weight: var(--weight-semibold);
  font-size: var(--text-sm);
  color: inherit;
  transition: all 0.15s ease;
}

.btn-secondary:hover { background: rgba(255, 255, 255, 0.05); }
.light-section .btn-secondary { border-color: var(--border-on-light-strong); }
.light-section .btn-secondary:hover { background: rgba(0, 0, 0, 0.03); }

/* ============================================================
 * Wave 4 — Accessibility additions (Web umbrella)
 * ============================================================ */

/* WCAG AA — visible focus indicator for keyboard users.
   :focus-visible avoids ring on mouse click. 2px ring + 2px offset
   ensures contrast on dark hero и light section backgrounds. */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Respect prefers-reduced-motion — disable animations/transitions for
   users who selected reduced motion в OS settings. */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}