/* Minimal reset + base typography. Loaded after tokens.css. */
*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: var(--color-background);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* The [hidden] attribute is the app's one "not now" switch (empty coupon
   lists, missing Zalo link, filter chips with nothing in them), and a class
   rule like `display:flex` would otherwise out-specify the browser default
   and show the element anyway. */
[hidden] {
  display: none !important;
}

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

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

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-3);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 var(--space-3);
}

button {
  font: inherit;
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* Scroll-reveal utility - paired with assets/js/lib/reveal.js. Motivated by
   hierarchy (draws the eye to the next section as the user scrolls), not
   decoration - collapses to fully visible instantly under reduced motion. */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    transition: none;
    transform: none;
    opacity: 1;
  }
}

.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;
}