/* ==========================================================================
   Reset & Base — State3 Depend
   ========================================================================== */

/* ---- Modern reset ---- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: var(--leading-relaxed);
  color: var(--color-text-white);
  background-color: var(--color-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* ---- Images ---- */
img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ---- Typography reset ---- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: var(--leading-snug);
  overflow-wrap: break-word;
}

h1 {
  font-size: var(--text-h1);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
}

h2 {
  font-size: var(--text-h2);
  letter-spacing: var(--tracking-tight);
}

h3 {
  font-size: var(--text-h3);
}

h4 {
  font-size: var(--text-h4);
}

p {
  overflow-wrap: break-word;
}

/* ---- Links ---- */
a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-hover);
}

/* ---- Lists ---- */
ul, ol {
  list-style: none;
}

/* ---- Buttons & inputs reset ---- */
button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

/* ---- Focus-visible for accessibility ---- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* ---- Selection ---- */
::selection {
  background-color: var(--color-accent);
  color: var(--color-primary);
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---- Screen-reader only utility ---- */
.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;
}