/**
 * BannerCast - Base Styles
 * Reset, typography, utilities, accessibility
 */

/* ================================
   CSS RESET (Modern Minimal)
   ================================ */

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

* {
  margin: 0;
  padding: 0;
}

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

@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;
  }
}

body {
  height: 100%;
  line-height: var(--line-height-normal);
  font-family: var(--font-body);
  font-size: var(--font-size-md);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

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

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

ul, ol {
  list-style: none;
}

a {
  color: var(--color-text-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-text-link-hover);
}

/* ================================
   TYPOGRAPHY
   ================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
}

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

.font-display { font-family: var(--font-display); }
.font-body { font-family: var(--font-body); }
.font-mono { font-family: var(--font-mono); }

.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-md { font-size: var(--font-size-md); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }

.text-muted { color: var(--color-text-muted); }
.text-light { color: var(--color-text-light); }
.text-inverse { color: var(--color-text-inverse); }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-normal { font-weight: var(--font-weight-normal); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }

.uppercase { text-transform: uppercase; }
.lowercase { text-transform: lowercase; }
.capitalize { text-transform: capitalize; }

/* ================================
   ACCESSIBILITY
   ================================ */

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  z-index: 9999;
  font-weight: var(--font-weight-semibold);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--spacing-md);
}

/* Visually hidden (screen reader only) */
.visually-hidden,
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Focus visible */
:focus-visible {
  outline: var(--focus-ring-width) solid var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
}

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

/* ================================
   UTILITY CLASSES
   ================================ */

/* Display */
.hidden { display: none !important; }
.block { display: block; }
.inline { display: inline; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

/* Flexbox */
.flex-1 { flex: 1; }
.flex-wrap { flex-wrap: wrap; }
.flex-col { flex-direction: column; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* Spacing */
.p-0 { padding: 0; }
.p-xs { padding: var(--spacing-xs); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

.m-0 { margin: 0; }
.m-auto { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }

/* Selection */
.select-none { user-select: none; }
.select-all { user-select: all; }

/* ================================
   HEADING STYLE CLASSES
   Use these to style non-heading elements
   like headings for visual consistency
   while maintaining proper hierarchy
   ================================ */

.heading-style-h3 {
  font-family: var(--font-display, inherit);
  font-weight: 600;
  line-height: var(--line-height-tight, 1.2);
  color: var(--color-text);
}

/* ================================
   SCROLLBAR (Webkit)
   ================================ */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--scrollbar-track, var(--color-bg-secondary));
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb, var(--color-border-strong));
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover, var(--color-text-muted));
}

/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb, var(--color-border-strong)) var(--scrollbar-track, var(--color-bg-secondary));
}

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

::selection {
  background: var(--selection-bg, var(--color-primary));
  color: var(--selection-text, var(--color-text-inverse));
}