html { scroll-behavior: smooth; }
/*
 * #120 - Advanced CSS Utilities
 * Additional utility classes for rapid development
 */

/* ===== Spacing Utilities ===== */

/* Margin utilities */
.m-0 { margin: 0; }
.m-1 { margin: var(--space-1); }
.m-2 { margin: var(--space-2); }
.m-3 { margin: var(--space-3); }
.m-4 { margin: var(--space-4); }
.m-5 { margin: var(--space-5); }
.m-6 { margin: var(--space-6); }
.m-7 { margin: var(--space-7); }
.m-8 { margin: var(--space-8); }
.m-auto { margin: auto; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-auto { margin-top: auto; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-auto { margin-bottom: auto; }

.ml-0 { margin-left: 0; }
.ml-1 { margin-left: var(--space-1); }
.ml-2 { margin-left: var(--space-2); }
.ml-3 { margin-left: var(--space-3); }
.ml-4 { margin-left: var(--space-4); }
.ml-5 { margin-left: var(--space-5); }
.ml-auto { margin-left: auto; }

.mr-0 { margin-right: 0; }
.mr-1 { margin-right: var(--space-1); }
.mr-2 { margin-right: var(--space-2); }
.mr-3 { margin-right: var(--space-3); }
.mr-4 { margin-right: var(--space-4); }
.mr-5 { margin-right: var(--space-5); }
.mr-auto { margin-right: auto; }

.mx-0 { margin-left: 0; margin-right: 0; }
.mx-1 { margin-left: var(--space-1); margin-right: var(--space-1); }
.mx-2 { margin-left: var(--space-2); margin-right: var(--space-2); }
.mx-3 { margin-left: var(--space-3); margin-right: var(--space-3); }
.mx-4 { margin-left: var(--space-4); margin-right: var(--space-4); }
.mx-5 { margin-left: var(--space-5); margin-right: var(--space-5); }
.mx-auto { margin-left: auto; margin-right: auto; }

.my-0 { margin-top: 0; margin-bottom: 0; }
.my-1 { margin-top: var(--space-1); margin-bottom: var(--space-1); }
.my-2 { margin-top: var(--space-2); margin-bottom: var(--space-2); }
.my-3 { margin-top: var(--space-3); margin-bottom: var(--space-3); }
.my-4 { margin-top: var(--space-4); margin-bottom: var(--space-4); }
.my-5 { margin-top: var(--space-5); margin-bottom: var(--space-5); }
.my-auto { margin-top: auto; margin-bottom: auto; }

/* Padding utilities */
.p-0 { padding: 0; }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }
.p-7 { padding: var(--space-7); }
.p-8 { padding: var(--space-8); }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: var(--space-1); }
.pt-2 { padding-top: var(--space-2); }
.pt-3 { padding-top: var(--space-3); }
.pt-4 { padding-top: var(--space-4); }
.pt-5 { padding-top: var(--space-5); }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: var(--space-1); }
.pb-2 { padding-bottom: var(--space-2); }
.pb-3 { padding-bottom: var(--space-3); }
.pb-4 { padding-bottom: var(--space-4); }
.pb-5 { padding-bottom: var(--space-5); }

.pl-0 { padding-left: 0; }
.pl-1 { padding-left: var(--space-1); }
.pl-2 { padding-left: var(--space-2); }
.pl-3 { padding-left: var(--space-3); }
.pl-4 { padding-left: var(--space-4); }
.pl-5 { padding-left: var(--space-5); }

.pr-0 { padding-right: 0; }
.pr-1 { padding-right: var(--space-1); }
.pr-2 { padding-right: var(--space-2); }
.pr-3 { padding-right: var(--space-3); }
.pr-4 { padding-right: var(--space-4); }
.pr-5 { padding-right: var(--space-5); }

.px-0 { padding-left: 0; padding-right: 0; }
.px-1 { padding-left: var(--space-1); padding-right: var(--space-1); }
.px-2 { padding-left: var(--space-2); padding-right: var(--space-2); }
.px-3 { padding-left: var(--space-3); padding-right: var(--space-3); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-5 { padding-left: var(--space-5); padding-right: var(--space-5); }

.py-0 { padding-top: 0; padding-bottom: 0; }
.py-1 { padding-top: var(--space-1); padding-bottom: var(--space-1); }
.py-2 { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.py-3 { padding-top: var(--space-3); padding-bottom: var(--space-3); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-5 { padding-top: var(--space-5); padding-bottom: var(--space-5); }

/* ===== Display Utilities ===== */

.d-none { display: none; }
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }
.d-flex { display: flex; }
.d-inline-flex { display: inline-flex; }
.d-grid { display: grid; }

/* ===== Flexbox Utilities ===== */

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

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

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

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

.align-self-start { align-self: flex-start; }
.align-self-end { align-self: flex-end; }
.align-self-center { align-self: center; }
.align-self-baseline { align-self: baseline; }
.align-self-stretch { align-self: stretch; }

.flex-1 { flex: 1; }
.flex-auto { flex: auto; }
.flex-initial { flex: initial; }
.flex-none { flex: none; }

.flex-grow-0 { flex-grow: 0; }
.flex-grow-1 { flex-grow: 1; }

.flex-shrink-0 { flex-shrink: 0; }
.flex-shrink-1 { flex-shrink: 1; }

.gap-0 { gap: 0; }
.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-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }

/* ===== Grid Utilities ===== */

.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); }
.grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
.grid-cols-6 { grid-template-columns: repeat(6, 1fr); }

.grid-rows-1 { grid-template-rows: repeat(1, 1fr); }
.grid-rows-2 { grid-template-rows: repeat(2, 1fr); }
.grid-rows-3 { grid-template-rows: repeat(3, 1fr); }
.grid-rows-4 { grid-template-rows: repeat(4, 1fr); }

.col-span-1 { grid-column: span 1; }
.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }
.col-span-4 { grid-column: span 4; }
.col-span-5 { grid-column: span 5; }
.col-span-6 { grid-column: span 6; }
.col-span-full { grid-column: 1 / -1; }

.row-span-1 { grid-row: span 1; }
.row-span-2 { grid-row: span 2; }
.row-span-3 { grid-row: span 3; }
.row-span-full { grid-row: 1 / -1; }

/* ===== Text Utilities ===== */

.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-justify { text-align: justify; }

.text-start { text-align: start; }
.text-end { text-align: end; }

.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }
.text-3xl { font-size: var(--text-3xl); }
.text-4xl { font-size: var(--text-4xl); }
.text-5xl { font-size: var(--text-5xl); }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }
.font-black { font-weight: 900; }

.italic { font-style: italic; }
.not-italic { font-style: normal; }

.uppercase { text-transform: uppercase; }
.lowercase { text-transform: lowercase; }
.capitalize { text-transform: capitalize; }
.normal-case { text-transform: none; }

.underline { text-decoration: underline; }
.line-through { text-decoration: line-through; }
.no-underline { text-decoration: none; }

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

.break-words { word-wrap: break-word; }
.break-all { word-break: break-all; }

.whitespace-normal { white-space: normal; }
.whitespace-nowrap { white-space: nowrap; }
.whitespace-pre { white-space: pre; }
.whitespace-pre-wrap { white-space: pre-wrap; }

/* ===== Color Utilities ===== */

.text-primary { color: var(--primary); }
.text-dark { color: var(--dark); }
.text-muted { color: var(--text-muted); }
.text-white { color: white; }
.text-black { color: black; }

.bg-primary { background-color: var(--primary); }
.bg-dark { background-color: var(--dark); }
.bg-white { background-color: white; }
.bg-black { background-color: black; }
.bg-transparent { background-color: transparent; }

/* ===== Position Utilities ===== */

.static { position: static; }
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

.top-0 { top: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }

.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }

/* ===== Size Utilities ===== */

.w-full { width: 100%; }
.w-screen { width: 100vw; }
.w-auto { width: auto; }
.w-1\/2 { width: 50%; }
.w-1\/3 { width: 33.333%; }
.w-2\/3 { width: 66.666%; }
.w-1\/4 { width: 25%; }
.w-3\/4 { width: 75%; }

.h-full { height: 100%; }
.h-screen { height: 100vh; }
.h-auto { height: auto; }
.h-1\/2 { height: 50%; }

.min-w-0 { min-width: 0; }
.min-h-0 { min-height: 0; }
.min-h-screen { min-height: 100vh; }

.max-w-full { max-width: 100%; }
.max-w-screen { max-width: 100vw; }
.max-w-xs { max-width: 20rem; }
.max-w-sm { max-width: 24rem; }
.max-w-md { max-width: 28rem; }
.max-w-lg { max-width: 32rem; }
.max-w-xl { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-5xl { max-width: 64rem; }
.max-w-6xl { max-width: 72rem; }
.max-w-7xl { max-width: 80rem; }

/* ===== Border Utilities ===== */

.border { border: 1px solid var(--border-color); }
.border-0 { border: 0; }
.border-2 { border: 2px solid var(--border-color); }
.border-4 { border: 4px solid var(--border-color); }

.border-t { border-top: 1px solid var(--border-color); }
.border-b { border-bottom: 1px solid var(--border-color); }
.border-l { border-left: 1px solid var(--border-color); }
.border-r { border-right: 1px solid var(--border-color); }

.rounded-none { border-radius: 0; }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded { border-radius: var(--radius-md); }
.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: 9999px; }

/* ===== Shadow Utilities ===== */

.shadow-none { box-shadow: none; }
.shadow-sm { box-shadow: var(--elevation-1); }
.shadow { box-shadow: var(--elevation-2); }
.shadow-md { box-shadow: var(--elevation-3); }
.shadow-lg { box-shadow: var(--elevation-4); }
.shadow-xl { box-shadow: var(--elevation-5); }

/* ===== Overflow Utilities ===== */

.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-x-scroll { overflow-x: scroll; }

.overflow-y-auto { overflow-y: auto; }
.overflow-y-hidden { overflow-y: hidden; }
.overflow-y-scroll { overflow-y: scroll; }

/* ===== Z-Index Utilities ===== */

.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-auto { z-index: auto; }

/* ===== Cursor Utilities ===== */

.cursor-auto { cursor: auto; }
.cursor-default { cursor: default; }
.cursor-pointer { cursor: pointer; }
.cursor-wait { cursor: wait; }
.cursor-text { cursor: text; }
.cursor-move { cursor: move; }
.cursor-not-allowed { cursor: not-allowed; }

/* ===== Visibility Utilities ===== */

.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* ===== Opacity Utilities ===== */

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

/* ===== Transition Utilities ===== */

.transition-none { transition: none; }
.transition-all { transition: all var(--duration-normal) var(--ease); }
.transition { transition: all var(--duration-normal) var(--ease); }
.transition-colors { transition: color var(--duration-normal) var(--ease), background-color var(--duration-normal) var(--ease), border-color var(--duration-normal) var(--ease); }
.transition-opacity { transition: opacity var(--duration-normal) var(--ease); }
.transition-transform { transition: transform var(--duration-normal) var(--ease); }

.duration-0 { transition-duration: 0ms; }
.duration-150 { transition-duration: 150ms; }
.duration-300 { transition-duration: 300ms; }
.duration-500 { transition-duration: 500ms; }
.duration-700 { transition-duration: 700ms; }
.duration-1000 { transition-duration: 1000ms; }

/* ===== Transform Utilities ===== */

.scale-0 { transform: scale(0); }
.scale-50 { transform: scale(0.5); }
.scale-75 { transform: scale(0.75); }
.scale-90 { transform: scale(0.9); }
.scale-95 { transform: scale(0.95); }
.scale-100 { transform: scale(1); }
.scale-105 { transform: scale(1.05); }
.scale-110 { transform: scale(1.1); }
.scale-125 { transform: scale(1.25); }
.scale-150 { transform: scale(1.5); }

.rotate-0 { transform: rotate(0deg); }
.rotate-45 { transform: rotate(45deg); }
.rotate-90 { transform: rotate(90deg); }
.rotate-180 { transform: rotate(180deg); }
.-rotate-45 { transform: rotate(-45deg); }
.-rotate-90 { transform: rotate(-90deg); }
.-rotate-180 { transform: rotate(-180deg); }

/* ===== Responsive Prefixes ===== */

@media (max-width: 639px) {
    .sm\:hidden { display: none; }
}

@media (min-width: 640px) {
    .sm\:block { display: block; }
    .sm\:flex { display: flex; }
    .sm\:grid { display: grid; }
}

@media (min-width: 768px) {
    .md\:block { display: block; }
    .md\:flex { display: flex; }
    .md\:grid { display: grid; }
    .md\:hidden { display: none; }
}

@media (min-width: 1024px) {
    .lg\:block { display: block; }
    .lg\:flex { display: flex; }
    .lg\:grid { display: grid; }
    .lg\:hidden { display: none; }
}

@media (min-width: 1280px) {
    .xl\:block { display: block; }
    .xl\:flex { display: flex; }
    .xl\:grid { display: grid; }
    .xl\:hidden { display: none; }
}


/* Accessibility: Enhanced contrast mode */
@media (prefers-contrast: more) {
    :root {
        --gray: #333;
        --gray-light: #555;
        --gray-dark: #111;
    }
    body { color: #000; }
    a { text-decoration: underline; }
}


/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark light;
    }
    img:not([src*=".svg"]) {
        opacity: 0.9;
    }
}


/* Accessibility: Respect reduced motion preferences */
@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;
    }
    /* Keep scroll-triggered elements visible */
    .animate-on-scroll,
    .animate-on-scroll.animated,
    [class*="animate"],
    .fade-in,
    .fade-up,
    .fade-down,
    .slide-in,
    .slide-up {
        opacity: 1 !important;
        transform: none !important;
        visibility: visible !important;
    }
}


/* Accessibility: Visible focus indicators */
:focus-visible {
    outline: 3px solid #4f46e5;
    outline-offset: 2px;
}
:focus:not(:focus-visible) {
    outline: none;
}
a:focus-visible, button:focus-visible, input:focus-visible, 
select:focus-visible, textarea:focus-visible, [tabindex]:focus-visible {
    outline: 3px solid #4f46e5;
    outline-offset: 2px;
    border-radius: 2px;
}


/* Print Styles */
@media print {
    *, *::before, *::after {
        background: transparent !important;
        color: #000 !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    a, a:visited { text-decoration: underline; }
    a[href]::after { content: " (" attr(href) ")"; }
    abbr[title]::after { content: " (" attr(title) ")"; }
    img { page-break-inside: avoid; }
    h2, h3 { page-break-after: avoid; }
    p { orphans: 3; widows: 3; }
    nav, footer, .no-print, .btn, button { display: none !important; }
    body { font-size: 12pt; line-height: 1.5; }
}