/**
 * Base Styles & Modern CSS Reset - branchstone.art
 *
 * Contents:
 * - Modern CSS reset
 * - Box model normalization
 * - Body & root styles
 * - Accessibility utilities
 * - Focus management
 * - Smooth scrolling
 */

/* ========================================
   MODERN CSS RESET
   ======================================== */

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

/* Remove default margins and paddings */
body,
h1, h2, h3, h4, h5, h6,
p,
figure,
blockquote,
dl, dd,
ul, ol {
  margin: 0;
  padding: 0;
}

/* Remove list styles */
ul[role='list'],
ol[role='list'] {
  list-style: none;
}

/* ========================================
   ROOT & HTML
   ======================================== */

html {
  /* Smooth scrolling for anchor links */
  scroll-behavior: smooth;

  /* Prevent iOS font size adjustment */
  -webkit-text-size-adjust: 100%;

  /* Better font rendering */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Disable smooth scrolling for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

/* ========================================
   BODY
   ======================================== */

body {
  min-height: 100vh;
  min-height: 100dvh; /* Dynamic viewport height for mobile */

  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-regular);
  line-height: var(--leading-normal);

  color: var(--text-primary);
  background-color: var(--bg-primary);

  /* Better text rendering */
  text-rendering: optimizeLegibility;

  /* Prevent horizontal overflow */
  overflow-x: hidden;
}

/* ========================================
   IMAGES & MEDIA
   ======================================== */

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

/* Maintain aspect ratio for images */
img {
  font-style: italic; /* Alt text styling if image fails to load */
  background-repeat: no-repeat;
  background-size: cover;
  shape-margin: 1rem;
}

/* ========================================
   FORMS
   ======================================== */

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

/* Remove default button styles */
button {
  cursor: pointer;
  background: none;
  border: none;
}

/* Ensure textareas don't overflow */
textarea {
  resize: vertical;
}

/* ========================================
   TABLES
   ======================================== */

table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* ========================================
   TEXT SELECTION
   ======================================== */

::selection {
  background-color: var(--accent-primary);
  color: var(--text-inverse);
  text-shadow: none;
}

::-moz-selection {
  background-color: var(--accent-primary);
  color: var(--text-inverse);
  text-shadow: none;
}

/* ========================================
   FOCUS STYLES
   ======================================== */

/* Remove default outline, we'll add custom focus styles */
:focus {
  outline: none;
}

/* Custom focus visible styles (keyboard navigation only) */
:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Focus within for containers */
:focus-within {
  /* Can be customized per component */
}

/* ========================================
   SCREEN READER ONLY
   ======================================== */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Allow element to be focusable when navigated to via keyboard */
.sr-only-focusable:focus,
.sr-only-focusable:active {
  position: static;
  width: auto;
  height: auto;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

/* ========================================
   REDUCED MOTION
   ======================================== */

@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;
  }
}

/* ========================================
   PRINT STYLES
   ======================================== */

@media print {
  *,
  *::before,
  *::after {
    background: transparent !important;
    color: #000 !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }

  a,
  a:visited {
    text-decoration: underline;
  }

  a[href]::after {
    content: " (" attr(href) ")";
  }

  abbr[title]::after {
    content: " (" attr(title) ")";
  }

  img {
    page-break-inside: avoid;
  }

  p,
  h2,
  h3 {
    orphans: 3;
    widows: 3;
  }

  h2,
  h3 {
    page-break-after: avoid;
  }
}

/* ========================================
   HIGH CONTRAST MODE
   ======================================== */

@media (prefers-contrast: high) {
  :root {
    --border-default: currentColor;
    --border-strong: currentColor;
  }

  :focus-visible {
    outline-width: 3px;
    outline-offset: 4px;
  }
}