/**
 * NiftyBox Global Styles
 * Includes CSS reset, base styles, and shared utilities
 */

@import url('./tokens.css');

/* ===================================
   CSS RESET & BASE STYLES
   =================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  transition: background-color var(--transition-duration-normal) var(--transition-timing-ease-in-out),
              color var(--transition-duration-normal) var(--transition-timing-ease-in-out);
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

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 {
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
}

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

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

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

strong, b {
  font-weight: var(--font-weight-bold);
}

em, i {
  font-style: italic;
}

code {
  font-family: var(--font-family-mono);
  font-size: 0.875em;
  background-color: var(--color-surface);
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-primary);
}

pre {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  background-color: var(--color-surface);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-primary);
  overflow-x: auto;
  margin-bottom: var(--spacing-md);
}

/* ===================================
   LISTS
   =================================== */

ul, ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-xl);
}

li {
  margin-bottom: var(--spacing-sm);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
}

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

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

img {
  border-style: none;
}

/* ===================================
   BUTTONS & FORMS
   =================================== */

button {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

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

/* ===================================
   LAYOUT UTILITIES
   =================================== */

.niftybox-container {
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
  width: 100%;
}

.niftybox-section {
  padding-top: var(--spacing-5xl);
  padding-bottom: var(--spacing-5xl);
}

@media (max-width: 768px) {
  .niftybox-section {
    padding-top: var(--spacing-4xl);
    padding-bottom: var(--spacing-4xl);
  }
}

/* ===================================
   VISIBILITY UTILITIES
   =================================== */

.niftybox-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;
}

.niftybox-hidden {
  display: none !important;
}

/* ===================================
   FLEX UTILITIES
   =================================== */

.niftybox-flex {
  display: flex;
}

.niftybox-flex-col {
  flex-direction: column;
}

.niftybox-items-center {
  align-items: center;
}

.niftybox-justify-center {
  justify-content: center;
}

.niftybox-justify-between {
  justify-content: space-between;
}

.niftybox-gap-sm {
  gap: var(--spacing-sm);
}

.niftybox-gap-md {
  gap: var(--spacing-md);
}

.niftybox-gap-lg {
  gap: var(--spacing-lg);
}

.niftybox-gap-xl {
  gap: var(--spacing-xl);
}

/* ===================================
   TEXT UTILITIES
   =================================== */

.niftybox-text-center {
  text-align: center;
}

.niftybox-text-left {
  text-align: left;
}

.niftybox-text-right {
  text-align: right;
}

/* ===================================
   RESPONSIVE UTILITIES
   =================================== */

@media (max-width: 768px) {
  h1 { font-size: var(--font-size-4xl); }
  h2 { font-size: var(--font-size-3xl); }
  h3 { font-size: var(--font-size-2xl); }
  h4 { font-size: var(--font-size-xl); }

  .niftybox-container {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
  }
}

/* ===================================
   FOCUS & ACCESSIBILITY
   =================================== */

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

/* Reduced motion support */
@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;
  }
}

/* ===================================
   SCROLLBAR STYLING (Dark Mode)
   =================================== */

::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--color-border-secondary);
  border-radius: var(--radius-full);
  border: 3px solid var(--color-bg-secondary);
}

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

/* ===================================
   SELECTION STYLING
   =================================== */

::selection {
  background-color: var(--color-primary);
  color: var(--color-text-on-primary);
}

::-moz-selection {
  background-color: var(--color-primary);
  color: var(--color-text-on-primary);
}