/**
 * Layout and Utility Classes
 *
 * Provides responsive grid, flexbox utilities, and common layout patterns
 */

/* Base body styles */
body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-narrow {
  max-width: var(--max-width-form);
}

/* Header */
.header {
  height: var(--header-height);
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: var(--z-dropdown);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Main content area */
.main {
  min-height: calc(100vh - var(--header-height));
  padding: var(--spacing-xl) 0;
}

/* Footer */
.footer {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-background-secondary);
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

/* Grid */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* Responsive grid */
@media (max-width: 768px) {
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
}

/* Flexbox utilities */
.flex {
  display: flex;
}

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

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.items-start {
  align-items: flex-start;
}

.items-end {
  align-items: flex-end;
}

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

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

.justify-end {
  justify-content: flex-end;
}

.gap-xs {
  gap: var(--spacing-xs);
}
.gap-sm {
  gap: var(--spacing-sm);
}
.gap-md {
  gap: var(--spacing-md);
}
.gap-lg {
  gap: var(--spacing-lg);
}
.gap-xl {
  gap: var(--spacing-xl);
}

/* Spacing utilities */
.mt-xs {
  margin-top: var(--spacing-xs);
}
.mt-sm {
  margin-top: var(--spacing-sm);
}
.mt-md {
  margin-top: var(--spacing-md);
}
.mt-lg {
  margin-top: var(--spacing-lg);
}
.mt-xl {
  margin-top: var(--spacing-xl);
}

.mb-xs {
  margin-bottom: var(--spacing-xs);
}
.mb-sm {
  margin-bottom: var(--spacing-sm);
}
.mb-md {
  margin-bottom: var(--spacing-md);
}
.mb-lg {
  margin-bottom: var(--spacing-lg);
}
.mb-xl {
  margin-bottom: var(--spacing-xl);
}

.p-sm {
  padding: var(--spacing-sm);
}
.p-md {
  padding: var(--spacing-md);
}
.p-lg {
  padding: var(--spacing-lg);
}
.p-xl {
  padding: var(--spacing-xl);
}

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

/* Text colors */
.text-secondary {
  color: var(--color-text-secondary);
}
.text-muted {
  color: var(--color-text-muted);
}
.text-green {
  color: var(--color-green);
}
.text-orange {
  color: var(--color-orange);
}
.text-red {
  color: var(--color-red);
}
.text-error {
  color: var(--color-error);
}

/* Typography utilities */
.text-xs {
  font-size: var(--font-size-xs);
}
.text-sm {
  font-size: var(--font-size-sm);
}
.text-base {
  font-size: var(--font-size-base);
}
.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-3xl {
  font-size: var(--font-size-3xl);
}

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

/* Display utilities */
.hidden {
  display: none;
}

.block {
  display: block;
}

.inline {
  display: inline;
}

.inline-block {
  display: inline-block;
}

/* Visibility 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-width: 0;
}

/* Width utilities */
.w-full {
  width: 100%;
}

.max-w-sm {
  max-width: 24rem;
}
.max-w-md {
  max-width: 28rem;
}
.max-w-lg {
  max-width: 32rem;
}
.max-w-xl {
  max-width: 36rem;
}

/* Responsive utilities */
@media (max-width: 768px) {
  .md\:hidden {
    display: none;
  }
}

@media (min-width: 769px) {
  .md\:block {
    display: block;
  }
}