/* ========== UNIVERSAL BOOKS - UTILITY CLASSES ========== */
/* Common utility classes for rapid development */

/* ========== SPACING UTILITIES ========== */
/* Margin */
.m-0 { margin: 0 !important; }
.m-1 { margin: var(--spacing-xs) !important; }
.m-2 { margin: var(--spacing-sm) !important; }
.m-3 { margin: var(--spacing-md) !important; }
.m-4 { margin: var(--spacing-lg) !important; }
.m-5 { margin: var(--spacing-xl) !important; }
.m-6 { margin: var(--spacing-2xl) !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--spacing-xs) !important; }
.mt-2 { margin-top: var(--spacing-sm) !important; }
.mt-3 { margin-top: var(--spacing-md) !important; }
.mt-4 { margin-top: var(--spacing-lg) !important; }
.mt-5 { margin-top: var(--spacing-xl) !important; }
.mt-6 { margin-top: var(--spacing-2xl) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--spacing-xs) !important; }
.mb-2 { margin-bottom: var(--spacing-sm) !important; }
.mb-3 { margin-bottom: var(--spacing-md) !important; }
.mb-4 { margin-bottom: var(--spacing-lg) !important; }
.mb-5 { margin-bottom: var(--spacing-xl) !important; }
.mb-6 { margin-bottom: var(--spacing-2xl) !important; }

.ml-0 { margin-left: 0 !important; }
.ml-1 { margin-left: var(--spacing-xs) !important; }
.ml-2 { margin-left: var(--spacing-sm) !important; }
.ml-3 { margin-left: var(--spacing-md) !important; }
.ml-4 { margin-left: var(--spacing-lg) !important; }
.ml-5 { margin-left: var(--spacing-xl) !important; }

.mr-0 { margin-right: 0 !important; }
.mr-1 { margin-right: var(--spacing-xs) !important; }
.mr-2 { margin-right: var(--spacing-sm) !important; }
.mr-3 { margin-right: var(--spacing-md) !important; }
.mr-4 { margin-right: var(--spacing-lg) !important; }
.mr-5 { margin-right: var(--spacing-xl) !important; }

.mx-auto { margin-left: auto !important; margin-right: auto !important; }

/* Padding */
.p-0 { padding: 0 !important; }
.p-1 { padding: var(--spacing-xs) !important; }
.p-2 { padding: var(--spacing-sm) !important; }
.p-3 { padding: var(--spacing-md) !important; }
.p-4 { padding: var(--spacing-lg) !important; }
.p-5 { padding: var(--spacing-xl) !important; }
.p-6 { padding: var(--spacing-2xl) !important; }

.pt-0 { padding-top: 0 !important; }
.pt-1 { padding-top: var(--spacing-xs) !important; }
.pt-2 { padding-top: var(--spacing-sm) !important; }
.pt-3 { padding-top: var(--spacing-md) !important; }
.pt-4 { padding-top: var(--spacing-lg) !important; }
.pt-5 { padding-top: var(--spacing-xl) !important; }

.pb-0 { padding-bottom: 0 !important; }
.pb-1 { padding-bottom: var(--spacing-xs) !important; }
.pb-2 { padding-bottom: var(--spacing-sm) !important; }
.pb-3 { padding-bottom: var(--spacing-md) !important; }
.pb-4 { padding-bottom: var(--spacing-lg) !important; }
.pb-5 { padding-bottom: var(--spacing-xl) !important; }

.pl-0 { padding-left: 0 !important; }
.pl-1 { padding-left: var(--spacing-xs) !important; }
.pl-2 { padding-left: var(--spacing-sm) !important; }
.pl-3 { padding-left: var(--spacing-md) !important; }
.pl-4 { padding-left: var(--spacing-lg) !important; }
.pl-5 { padding-left: var(--spacing-xl) !important; }

.pr-0 { padding-right: 0 !important; }
.pr-1 { padding-right: var(--spacing-xs) !important; }
.pr-2 { padding-right: var(--spacing-sm) !important; }
.pr-3 { padding-right: var(--spacing-md) !important; }
.pr-4 { padding-right: var(--spacing-lg) !important; }
.pr-5 { padding-right: var(--spacing-xl) !important; }

/* ========== DISPLAY UTILITIES ========== */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }
.d-grid { display: grid !important; }

/* ========== FLEXBOX UTILITIES ========== */
.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }

.justify-start { justify-content: flex-start !important; }
.justify-end { justify-content: flex-end !important; }
.justify-center { justify-content: center !important; }
.justify-between { justify-content: space-between !important; }
.justify-around { justify-content: space-around !important; }

.align-start { align-items: flex-start !important; }
.align-end { align-items: flex-end !important; }
.align-center { align-items: center !important; }
.align-baseline { align-items: baseline !important; }
.align-stretch { align-items: stretch !important; }

.flex-1 { flex: 1 !important; }
.flex-auto { flex: auto !important; }
.flex-none { flex: none !important; }

.gap-1 { gap: var(--spacing-xs) !important; }
.gap-2 { gap: var(--spacing-sm) !important; }
.gap-3 { gap: var(--spacing-md) !important; }
.gap-4 { gap: var(--spacing-lg) !important; }
.gap-5 { gap: var(--spacing-xl) !important; }

/* ========== TEXT UTILITIES ========== */
.text-left { text-align: left !important; }
.text-center { text-align: center !important; }
.text-right { text-align: right !important; }
.text-justify { text-align: justify !important; }

.text-lowercase { text-transform: lowercase !important; }
.text-uppercase { text-transform: uppercase !important; }
.text-capitalize { text-transform: capitalize !important; }

.text-truncate {
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    white-space: nowrap !important;
}

.text-wrap { white-space: normal !important; }
.text-nowrap { white-space: nowrap !important; }

.font-weight-light { font-weight: 300 !important; }
.font-weight-normal { font-weight: 400 !important; }
.font-weight-medium { font-weight: 500 !important; }
.font-weight-semibold { font-weight: 600 !important; }
.font-weight-bold { font-weight: 700 !important; }

.font-italic { font-style: italic !important; }

.text-xs { font-size: 0.75rem !important; }
.text-sm { font-size: 0.875rem !important; }
.text-base { font-size: 1rem !important; }
.text-lg { font-size: 1.125rem !important; }
.text-xl { font-size: 1.25rem !important; }
.text-2xl { font-size: 1.5rem !important; }
.text-3xl { font-size: 2rem !important; }

/* ========== COLOR UTILITIES ========== */
.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-success { color: var(--success-color) !important; }
.text-error { color: var(--error-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-info { color: var(--info-color) !important; }
.text-white { color: white !important; }
.text-dark { color: var(--text-primary) !important; }

.bg-primary { background-color: var(--primary-color) !important; }
.bg-secondary { background-color: var(--secondary-color) !important; }
.bg-success { background-color: var(--success-color) !important; }
.bg-error { background-color: var(--error-color) !important; }
.bg-warning { background-color: var(--warning-color) !important; }
.bg-info { background-color: var(--info-color) !important; }
.bg-light { background-color: var(--background-light) !important; }
.bg-dark { background-color: var(--background-dark) !important; }
.bg-white { background-color: white !important; }
.bg-transparent { background-color: transparent !important; }

/* ========== BORDER UTILITIES ========== */
.border { border: 1px solid var(--border-color) !important; }
.border-0 { border: 0 !important; }
.border-top { border-top: 1px solid var(--border-color) !important; }
.border-bottom { border-bottom: 1px solid var(--border-color) !important; }
.border-left { border-left: 1px solid var(--border-color) !important; }
.border-right { border-right: 1px solid var(--border-color) !important; }

.border-primary { border-color: var(--primary-color) !important; }
.border-secondary { border-color: var(--text-secondary) !important; }
.border-success { border-color: var(--success-color) !important; }
.border-error { border-color: var(--error-color) !important; }

.rounded { border-radius: var(--radius-md) !important; }
.rounded-sm { border-radius: var(--radius-sm) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }
.rounded-xl { border-radius: var(--radius-xl) !important; }
.rounded-full { border-radius: var(--radius-full) !important; }
.rounded-0 { border-radius: 0 !important; }

/* ========== SHADOW UTILITIES ========== */
.shadow-none { box-shadow: none !important; }
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow { box-shadow: var(--shadow-md) !important; }
.shadow-md { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }
.shadow-xl { box-shadow: var(--shadow-xl) !important; }

/* ========== POSITION UTILITIES ========== */
.position-static { position: static !important; }
.position-relative { position: relative !important; }
.position-absolute { position: absolute !important; }
.position-fixed { position: fixed !important; }
.position-sticky { position: sticky !important; }

/* ========== WIDTH & HEIGHT UTILITIES ========== */
.w-25 { width: 25% !important; }
.w-50 { width: 50% !important; }
.w-75 { width: 75% !important; }
.w-100 { width: 100% !important; }
.w-auto { width: auto !important; }

.h-25 { height: 25% !important; }
.h-50 { height: 50% !important; }
.h-75 { height: 75% !important; }
.h-100 { height: 100% !important; }
.h-auto { height: auto !important; }

.mw-100 { max-width: 100% !important; }
.mh-100 { max-height: 100% !important; }

/* ========== OVERFLOW UTILITIES ========== */
.overflow-auto { overflow: auto !important; }
.overflow-hidden { overflow: hidden !important; }
.overflow-visible { overflow: visible !important; }
.overflow-scroll { overflow: scroll !important; }

.overflow-x-auto { overflow-x: auto !important; }
.overflow-y-auto { overflow-y: auto !important; }

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

.opacity-0 { opacity: 0 !important; }
.opacity-25 { opacity: 0.25 !important; }
.opacity-50 { opacity: 0.5 !important; }
.opacity-75 { opacity: 0.75 !important; }
.opacity-100 { opacity: 1 !important; }

/* ========== CURSOR UTILITIES ========== */
.cursor-pointer { cursor: pointer !important; }
.cursor-default { cursor: default !important; }
.cursor-not-allowed { cursor: not-allowed !important; }

/* ========== INTERACTION UTILITIES ========== */
.pointer-events-none { pointer-events: none !important; }
.pointer-events-auto { pointer-events: auto !important; }

.user-select-none { user-select: none !important; }
.user-select-all { user-select: all !important; }
.user-select-auto { user-select: auto !important; }

/* ========== ACCESSIBILITY UTILITIES ========== */
.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.sr-only-focusable:focus {
    position: static !important;
    width: auto !important;
    height: auto !important;
    overflow: visible !important;
    clip: auto !important;
    white-space: normal !important;
}

/* Focus visible for keyboard navigation */
.focus-visible:focus-visible {
    outline: 2px solid var(--primary-color) !important;
    outline-offset: 2px !important;
}

/* ========== PRINT UTILITIES ========== */
@media print {
    .print-hidden {
        display: none !important;
    }
    
    .print-visible {
        display: block !important;
    }
    
    .page-break {
        page-break-after: always !important;
    }
    
    .page-break-before {
        page-break-before: always !important;
    }
    
    .no-page-break {
        page-break-inside: avoid !important;
    }
}

/* ========== RESPONSIVE UTILITIES ========== */
@media (max-width: 767px) {
    .d-sm-none { display: none !important; }
    .d-sm-block { display: block !important; }
    .d-sm-flex { display: flex !important; }
}

@media (min-width: 768px) {
    .d-md-none { display: none !important; }
    .d-md-block { display: block !important; }
    .d-md-flex { display: flex !important; }
}

@media (min-width: 1024px) {
    .d-lg-none { display: none !important; }
    .d-lg-block { display: block !important; }
    .d-lg-flex { display: flex !important; }
}

@media (min-width: 1200px) {
    .d-xl-none { display: none !important; }
    .d-xl-block { display: block !important; }
    .d-xl-flex { display: flex !important; }
}

/* ========== REDUCED MOTION ========== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}