/*
 * reset.css — uCommerce Browser Reset & Base Defaults
 *
 * Includes:
 *   - Modern CSS reset (box-sizing, margin, padding normalization)
 *   - HTML/body defaults
 *   - Typography element defaults
 *   - Link defaults
 *   - Button base styles (cosmetic overrides in components.css)
 *   - Form element base styles
 *   - Accessibility utilities (.sr-only, .skip-link)
 *
 * Depends on: tokens.css (must be loaded first)
 * Load order: tokens → reset → layout → components → site
 */


/* -------------------------------------------------------------------------
 * Reset
 * ------------------------------------------------------------------------- */

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

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

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-base);
  color: var(--color-text-primary);
  background-color: var(--color-bg-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

input,
button,
textarea,
select {
  font: inherit;
}

p,
h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

ul,
ol {
  list-style: none;
}


/* -------------------------------------------------------------------------
 * Typography defaults
 * ------------------------------------------------------------------------- */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
  max-width: 70ch;
}


/* -------------------------------------------------------------------------
 * Link defaults
 * ------------------------------------------------------------------------- */

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--duration-fast) var(--easing-out);
}

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

a:focus-visible {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}


/* -------------------------------------------------------------------------
 * Button base styles
 * Cosmetic overrides live in components.css.
 * ------------------------------------------------------------------------- */

button {
  cursor: pointer;
  border: none;
  background: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  transition: background-color var(--duration-fast) var(--easing-out),
              color var(--duration-fast) var(--easing-out);
}

button:focus-visible {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 3px;
}


/* -------------------------------------------------------------------------
 * Form base styles
 * ------------------------------------------------------------------------- */

label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="number"],
select,
textarea {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background-color: var(--color-bg-page);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast) var(--easing-out);
  min-height: 44px;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(212, 105, 59, 0.1);
}

textarea {
  resize: vertical;
  min-height: 120px;
}


/* -------------------------------------------------------------------------
 * Accessibility utilities
 * ------------------------------------------------------------------------- */

.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;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: var(--z-toast);
  padding: var(--space-3) var(--space-6);
  background: var(--color-brand-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
  transition: top var(--duration-fast);
}

.skip-link:focus {
  top: var(--space-4);
}