/* ========================================
   EFFECTS & SPECIAL STYLES UTILITIES
   ======================================== */

/* ===== SHADOW UTILITIES ===== */
.shadow-none { box-shadow: none; }
.shadow-xs { box-shadow: var(--shadow-xs); }
.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-2xl { box-shadow: var(--shadow-2xl); }

/* ===== OPACITY ===== */
.opacity-0 { opacity: 0; }
.opacity-25 { opacity: 0.25; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* ===== VISIBILITY ===== */
.visible { visibility: visible; }
.invisible { visibility: hidden; }

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

/* ===== FLEX UTILITIES ===== */
.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }
.flex-center { align-items: center; justify-content: center; }
.flex-between { justify-content: space-between; }
.flex-around { justify-content: space-around; }
.flex-start { justify-content: flex-start; }
.flex-end { justify-content: flex-end; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.flex-1 { flex: 1; }
.flex-auto { flex: auto; }
.flex-none { flex: none; }

/* ===== POSITION ===== */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.static { position: static; }

/* ===== Z-INDEX ===== */
.z-auto { z-index: auto; }
.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }
.z-dropdown { z-index: var(--z-dropdown); }
.z-sticky { z-index: var(--z-sticky); }
.z-fixed { z-index: var(--z-fixed); }
.z-modal { z-index: var(--z-modal); }
.z-tooltip { z-index: var(--z-tooltip); }

/* ===== OVERFLOW ===== */
.overflow-auto { overflow: auto; }
.overflow-hidden { overflow: hidden; }
.overflow-visible { overflow: visible; }
.overflow-scroll { overflow: scroll; }
.overflow-x-auto { overflow-x: auto; }
.overflow-x-hidden { overflow-x: hidden; }
.overflow-y-auto { overflow-y: auto; }
.overflow-y-hidden { overflow-y: hidden; }

/* ===== BORDER RADIUS ===== */
.rounded-none { border-radius: 0; }
.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-3xl { border-radius: var(--radius-3xl); }
.rounded-full { border-radius: var(--radius-full); }

.rounded-t-sm { border-top-left-radius: var(--radius-sm); border-top-right-radius: var(--radius-sm); }
.rounded-b-sm { border-bottom-left-radius: var(--radius-sm); border-bottom-right-radius: var(--radius-sm); }
.rounded-l-sm { border-bottom-left-radius: var(--radius-sm); border-top-left-radius: var(--radius-sm); }
.rounded-r-sm { border-bottom-right-radius: var(--radius-sm); border-top-right-radius: var(--radius-sm); }

/* ===== WIDTH ===== */
.w-auto { width: auto; }
.w-full { width: 100%; }
.w-screen { width: 100vw; }
.w-min { width: min-content; }
.w-max { width: max-content; }
.w-fit { width: fit-content; }

/* ===== HEIGHT ===== */
.h-auto { height: auto; }
.h-full { height: 100%; }
.h-screen { height: 100vh; }
.h-min { height: min-content; }
.h-max { height: max-content; }
.h-fit { height: fit-content; }

/* ===== MIN-WIDTH / MAX-WIDTH ===== */
.min-w-0 { min-width: 0; }
.min-w-full { min-width: 100%; }
.max-w-none { max-width: none; }
.max-w-full { max-width: 100%; }
.max-w-sm { max-width: 384px; }
.max-w-md { max-width: 448px; }
.max-w-lg { max-width: 512px; }
.max-w-xl { max-width: 640px; }
.max-w-2xl { max-width: 768px; }
.max-w-3xl { max-width: 896px; }
.max-w-4xl { max-width: 1024px; }
.max-w-5xl { max-width: 1152px; }
.max-w-6xl { max-width: 1280px; }

/* ===== BACKGROUND ===== */
.bg-primary { background-color: var(--color-primary); }
.bg-secondary { background-color: var(--color-secondary); }
.bg-success { background-color: var(--color-success); }
.bg-warning { background-color: var(--color-warning); }
.bg-error { background-color: var(--color-error); }
.bg-info { background-color: var(--color-info); }
.bg-surface { background-color: var(--color-surface); }
.bg-surface-variant { background-color: var(--color-surface-variant); }
.bg-surface-dim { background-color: var(--color-surface-dim); }
.bg-transparent { background-color: transparent; }

/* ===== GRADIENT ===== */
.gradient-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
}

.gradient-success {
  background: linear-gradient(135deg, var(--color-success) 0%, var(--color-info) 100%);
  color: white;
}

.gradient-error {
  background: linear-gradient(135deg, var(--color-error) 0%, var(--color-warning) 100%);
  color: white;
}

/* ===== GLASSMORPHISM ===== */
.glass { background: var(--glass-bg); backdrop-filter: var(--glass-backdrop); border: var(--glass-border); }
.glass-sm { background: var(--glass-bg); backdrop-filter: var(--glass-backdrop); border: var(--glass-border); border-radius: var(--radius-md); }
.glass-lg { background: var(--glass-bg); backdrop-filter: var(--glass-backdrop); border: var(--glass-border); border-radius: var(--radius-lg); }

/* ===== NEUMORPHISM ===== */
.neumorphic { background: var(--color-surface); box-shadow: var(--neumorphic-light); border-radius: var(--radius-lg); }
.neumorphic-sm { background: var(--color-surface); box-shadow: var(--neumorphic-light); border-radius: var(--radius-md); }

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes slideDown {
  from { transform: translateY(-20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOut {
  from { transform: translateX(0); opacity: 1; }
  to { transform: translateX(100%); opacity: 0; }
}

@keyframes bounceIn {
  0% { transform: scale(0.3); opacity: 0; }
  50% { opacity: 1; }
  70% { transform: scale(1.05); }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ===== ANIMATION UTILITIES ===== */
.animate-fade-in { animation: fadeIn 0.3s ease-in; }
.animate-fade-out { animation: fadeOut 0.3s ease-out; }
.animate-slide-up { animation: slideUp 0.3s ease-out; }
.animate-slide-down { animation: slideDown 0.3s ease-out; }
.animate-slide-in { animation: slideIn 0.3s ease-out; }
.animate-slide-out { animation: slideOut 0.3s ease-in; }
.animate-bounce-in { animation: bounceIn 0.4s ease-out; }
.animate-pulse { animation: pulse 2s infinite; }

/* ===== TRANSITION ===== */
.transition-fast { transition: all var(--transition-fast); }
.transition-base { transition: all var(--transition-base); }
.transition-slow { transition: all var(--transition-slow); }

.transition-colors { transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base); }
.transition-opacity { transition: opacity var(--transition-base); }
.transition-transform { transition: transform var(--transition-base); }
.transition-shadow { transition: box-shadow var(--transition-base); }

/* ===== TRANSFORM ===== */
.scale-75 { transform: scale(0.75); }
.scale-90 { transform: scale(0.9); }
.scale-100 { transform: scale(1); }
.scale-110 { transform: scale(1.1); }
.scale-125 { transform: scale(1.25); }

.translate-x-0 { transform: translateX(0); }
.translate-y-0 { transform: translateY(0); }
.translate-y-1 { transform: translateY(4px); }
.translate-y-2 { transform: translateY(8px); }
.-translate-y-1 { transform: translateY(-4px); }
.-translate-y-2 { transform: translateY(-8px); }

.rotate-0 { transform: rotate(0deg); }
.rotate-90 { transform: rotate(90deg); }
.rotate-180 { transform: rotate(180deg); }
.-rotate-90 { transform: rotate(-90deg); }

/* ===== ASPECT RATIO ===== */
.aspect-auto { aspect-ratio: auto; }
.aspect-square { aspect-ratio: 1 / 1; }
.aspect-video { aspect-ratio: 16 / 9; }