@use 'variables' as *;

// ─── CSS Custom Properties (runtime theming) ──────────────────────────────────

:root {
  --clr-bg:              #{$gray-50};
  --clr-surface:         #ffffff;
  --clr-surface-raised:  #{$gray-100};
  --clr-border:          #{$gray-200};
  --clr-text:            #{$gray-900};
  --clr-text-secondary:  #{$gray-600};
  --clr-text-muted:      #{$gray-400};
  --clr-primary:         #{$primary-600};
  --clr-primary-hover:   #{$primary-700};
  --clr-accent:          #{$accent-500};
}

[data-theme="dark"] {
  --clr-bg:              #{$gray-900};
  --clr-surface:         #{$gray-800};
  --clr-surface-raised:  #{$gray-700};
  --clr-border:          #{$gray-700};
  --clr-text:            #{$gray-100};
  --clr-text-secondary:  #{$gray-400};
  --clr-text-muted:      #{$gray-600};
  --clr-primary:         #{$primary-400};
  --clr-primary-hover:   #{$primary-300};
  --clr-accent:          #{$accent-400};
}

// ─── Reset ────────────────────────────────────────────────────────────────────

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: $font-family-base;
  font-size: $font-size-base;
  font-weight: $font-weight-normal;
  line-height: $line-height-normal;
  color: var(--clr-text);
  background-color: var(--clr-bg);
  transition: background-color $transition-base, color $transition-base;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--clr-primary);
  text-decoration: none;

  &:hover {
    color: var(--clr-primary-hover);
    text-decoration: underline;
  }
}

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

button {
  cursor: pointer;
  font-family: inherit;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: $font-weight-semibold;
  line-height: $line-height-tight;
  color: var(--clr-text);
}

h1 { font-size: $font-size-4xl; }
h2 { font-size: $font-size-3xl; }
h3 { font-size: $font-size-2xl; }
h4 { font-size: $font-size-xl;  }
h5 { font-size: $font-size-lg;  }
h6 { font-size: $font-size-base;}

// ─── Utilities ────────────────────────────────────────────────────────────────

.container {
  width: 100%;
  max-width: $container-max-width;
  margin-inline: auto;
  padding-inline: $spacing-6;
}

.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;
}
