/*
 * Utility Classes
 * Reusable utility classes for common patterns
 */

/* ===== CONTAINER ===== */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* Wider container */
.container-wide {
  max-width: 1440px;
}

/* Narrow container */
.container-narrow {
  max-width: 800px;
}

/* ===== SECTION SPACING ===== */
.section {
  padding-top: var(--section-padding-y-mobile);
  padding-bottom: var(--section-padding-y-mobile);
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--section-padding-y);
    padding-bottom: var(--section-padding-y);
  }
}

.section-sm {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

.section-lg {
  padding-top: var(--space-24);
  padding-bottom: var(--space-24);
}

/* ===== FLEXBOX UTILITIES ===== */
.flex {
  display: flex;
}

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

.flex-row {
  flex-direction: row;
}

.flex-wrap {
  flex-wrap: wrap;
}

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

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

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

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

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

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

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

.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.gap-12 { gap: var(--space-12); }

/* ===== GRID UTILITIES ===== */
.grid {
  display: grid;
}

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

.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);
}

/* Auto-fit grid (responsive without media queries) */
.grid-auto-fit {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-auto-fill {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

/* ===== TEXT ALIGNMENT ===== */
.text-left {
  text-align: left;
}

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

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

/* ===== TEXT COLORS ===== */
.text-primary {
  color: var(--color-primary);
}

.text-accent {
  color: var(--color-accent);
}

.text-success {
  color: var(--color-success);
}

.text-error {
  color: var(--color-error);
}

.text-white {
  color: var(--color-white);
}

.text-gray-600 {
  color: var(--color-gray-600);
}

.text-gray-700 {
  color: var(--color-gray-700);
}

/* ===== BACKGROUND COLORS ===== */
.bg-primary {
  background-color: var(--color-primary);
}

.bg-accent {
  background-color: var(--color-accent);
}

.bg-white {
  background-color: var(--color-white);
}

.bg-gray-50 {
  background-color: var(--color-gray-50);
}

.bg-gray-100 {
  background-color: var(--color-gray-100);
}

/* Gradient backgrounds */
.bg-gradient-primary {
  background: var(--gradient-primary);
}

.bg-gradient-accent {
  background: var(--gradient-accent);
}

.bg-gradient-hero {
  background: var(--gradient-hero);
}

/* ===== SPACING UTILITIES ===== */
/* Margin */
.m-0 { margin: 0; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

/* Padding */
.p-0 { padding: 0; }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.pt-4 { padding-top: var(--space-4); }
.pb-4 { padding-bottom: var(--space-4); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }

/* ===== BORDER RADIUS ===== */
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-2xl { border-radius: var(--radius-2xl); }
.rounded-full { border-radius: var(--radius-full); }

/* ===== SHADOWS ===== */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }
.shadow-glow { box-shadow: var(--shadow-glow); }

/* ===== DISPLAY ===== */
.block {
  display: block;
}

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

.hidden {
  display: none;
}

/* ===== WIDTH ===== */
.w-full {
  width: 100%;
}

.w-auto {
  width: auto;
}

.max-w-full {
  max-width: 100%;
}

/* ===== HEIGHT ===== */
.h-full {
  height: 100%;
}

/* ===== POSITION ===== */
.relative {
  position: relative;
}

.absolute {
  position: absolute;
}

.fixed {
  position: fixed;
}

.sticky {
  position: sticky;
}

/* ===== OVERFLOW ===== */
.overflow-hidden {
  overflow: hidden;
}

.overflow-auto {
  overflow: auto;
}

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

/* Hide on mobile, show on tablet+ */
.hide-mobile {
  display: none;
}

@media (min-width: 768px) {
  .hide-mobile {
    display: block;
  }
}

/* Show on mobile only */
.show-mobile {
  display: block;
}

@media (min-width: 768px) {
  .show-mobile {
    display: none;
  }
}

/* Responsive grid columns */
@media (min-width: 576px) {
  .sm\:grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .md\:grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .md\:flex-row {
    flex-direction: row;
  }

  .md\:text-left {
    text-align: left;
  }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }

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

/* ===== ANIMATIONS ===== */

/* Fade in animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* Pulse animation */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Glow animation */
@keyframes glow {
  0%, 100% {
    box-shadow: var(--shadow-glow);
  }
  50% {
    box-shadow: var(--shadow-glow-strong);
  }
}

.glow {
  animation: glow 2s ease-in-out infinite;
}

/* Gradient shift animation */
@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.gradient-shift {
  background-size: 200% 200%;
  animation: gradientShift 8s ease infinite;
}