/* ============================================
   TV NEWS DESIGN SYSTEM — Base & Reset Styles
   Modern CSS reset + typography + utilities
   ============================================ */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-primary);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  transition: background var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
  min-height: 100vh;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 800;
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 700;
}

h4 {
  font-size: 1.25rem;
  font-weight: 700;
}

h5 {
  font-size: 1.1rem;
  font-weight: 600;
}

h6 {
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

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

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

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

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

/* ---- Media ---- */
img {
  max-width: 100%;
  display: block;
  height: auto;
}

video, iframe {
  max-width: 100%;
  display: block;
}

svg {
  display: inline-block;
  vertical-align: middle;
}

/* ---- Form Elements ---- */
button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--color-accent-red);
  box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
}

input::placeholder, textarea::placeholder {
  color: var(--color-text-muted);
}

/* ---- Table ---- */
table {
  width: 100%;
  border-collapse: collapse;
}

/* ---- Blockquote ---- */
blockquote {
  border-left: 4px solid var(--color-accent-red);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-lg) 0;
  font-style: italic;
  color: var(--color-text-secondary);
  background: var(--color-bg-surface);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* ---- Horizontal Rule ---- */
hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-xl) 0;
}

/* ---- Code ---- */
code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-bg-surface);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

pre {
  background: var(--color-bg-surface);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  border: 1px solid var(--color-border);
}

pre code {
  background: none;
  padding: 0;
}

/* ---- Selection ---- */
::selection {
  background: var(--color-accent-red);
  color: #FFFFFF;
}

::-moz-selection {
  background: var(--color-accent-red);
  color: #FFFFFF;
}

/* ---- Scrollbar Styling (Webkit) ---- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-bg-primary);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-border-hover);
}

/* Firefox Scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) var(--color-bg-primary);
}

/* ---- Utility Classes ---- */

/* 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;
}

/* Text Alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Text Colors */
.text-red { color: var(--color-accent-red); }
.text-blue { color: var(--color-accent-blue); }
.text-green { color: var(--color-accent-green); }
.text-orange { color: var(--color-accent-orange); }
.text-purple { color: var(--color-accent-purple); }
.text-muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }

/* Font Utilities */
.font-display { font-family: var(--font-display); }
.font-accent { font-family: var(--font-accent); }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }
.uppercase { text-transform: uppercase; }
.tracking-wide { letter-spacing: 0.05em; }

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

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

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

/* Spacing Utilities */
.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

/* Width/Height */
.w-full { width: 100%; }
.h-full { height: 100%; }

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

/* Transition */
.transition { transition: all var(--transition-base); }
.transition-fast { transition: all var(--transition-fast); }