/* ============================================
   WREN DESIGN SYSTEM - UTILITIES
   Mobile-first utility classes
   ============================================ */

/* ========================================
   DISPLAY
   ======================================== */

.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; }

/* Hidden state - semantic utility for JS-toggled visibility */
.hidden { display: none !important; }

/* ========================================
   FLEX 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; }

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

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

.flex-1 { flex: 1; }
.flex-auto { flex: auto; }
.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; }

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

/* ========================================
   GAP
   ======================================== */

.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); }
.gap-8 { gap: var(--space-8); }
.gap-10 { gap: var(--space-10); }
.gap-12 { gap: var(--space-12); }

.gap-x-2 { column-gap: var(--space-2); }
.gap-x-4 { column-gap: var(--space-4); }
.gap-x-6 { column-gap: var(--space-6); }

.gap-y-2 { row-gap: var(--space-2); }
.gap-y-4 { row-gap: var(--space-4); }
.gap-y-6 { row-gap: var(--space-6); }

/* ========================================
   PADDING
   ======================================== */

.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-8 { padding: var(--space-8); }
.p-10 { padding: var(--space-10); }
.p-12 { padding: var(--space-12); }

.px-0 { padding-left: 0; padding-right: 0; }
.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); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }
.px-8 { padding-left: var(--space-8); padding-right: var(--space-8); }

.py-0 { padding-top: 0; padding-bottom: 0; }
.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); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }

.pt-0 { padding-top: 0; }
.pt-2 { padding-top: var(--space-2); }
.pt-4 { padding-top: var(--space-4); }
.pt-6 { padding-top: var(--space-6); }
.pt-8 { padding-top: var(--space-8); }

.pb-0 { padding-bottom: 0; }
.pb-2 { padding-bottom: var(--space-2); }
.pb-4 { padding-bottom: var(--space-4); }
.pb-6 { padding-bottom: var(--space-6); }
.pb-8 { padding-bottom: var(--space-8); }

.pl-0 { padding-left: 0; }
.pl-4 { padding-left: var(--space-4); }
.pr-0 { padding-right: 0; }
.pr-4 { padding-right: var(--space-4); }

/* ========================================
   MARGIN
   ======================================== */

.m-0 { margin: 0; }
.m-2 { margin: var(--space-2); }
.m-4 { margin: var(--space-4); }
.m-6 { margin: var(--space-6); }
.m-8 { margin: var(--space-8); }
.m-auto { margin: auto; }

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

.my-auto { margin-top: auto; margin-bottom: auto; }
.my-0 { margin-top: 0; margin-bottom: 0; }
.my-2 { margin-top: var(--space-2); margin-bottom: var(--space-2); }
.my-4 { margin-top: var(--space-4); margin-bottom: var(--space-4); }
.my-6 { margin-top: var(--space-6); margin-bottom: var(--space-6); }
.my-8 { margin-top: var(--space-8); margin-bottom: var(--space-8); }

.mt-0 { margin-top: 0; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mt-auto { margin-top: auto; }

.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); }
.mb-auto { margin-bottom: auto; }

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

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

/* Space between children */
.space-x-2 > * + * { margin-left: var(--space-2); }
.space-x-4 > * + * { margin-left: var(--space-4); }
.space-x-6 > * + * { margin-left: var(--space-6); }

.space-y-2 > * + * { margin-top: var(--space-2); }
.space-y-4 > * + * { margin-top: var(--space-4); }
.space-y-6 > * + * { margin-top: var(--space-6); }
.space-y-8 > * + * { margin-top: var(--space-8); }

/* ========================================
   WIDTH & HEIGHT
   ======================================== */

.w-full { width: 100%; }
.w-auto { width: auto; }
.w-screen { width: 100vw; }
.w-fit { width: fit-content; }
.w-min { width: min-content; }
.w-max { width: max-content; }
.w-1\/2 { width: 50%; }
.w-1\/3 { width: 33.333333%; }
.w-2\/3 { width: 66.666667%; }
.w-1\/4 { width: 25%; }
.w-3\/4 { width: 75%; }

.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-screen { max-width: 100vw; }

.h-full { height: 100%; }
.h-auto { height: auto; }
.h-screen { height: 100vh; }
.h-fit { height: fit-content; }

.min-h-0 { min-height: 0; }
.min-h-full { min-height: 100%; }
.min-h-screen { min-height: 100vh; }

/* ========================================
   OVERFLOW
   ======================================== */

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

/* ========================================
   POSITION
   ======================================== */

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

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

/* ========================================
   Z-INDEX (using design tokens)
   ======================================== */

.z-0 { z-index: var(--z-base); }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.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-navbar { z-index: var(--z-navbar); }
.z-modal { z-index: var(--z-modal); }
.z-toast { z-index: var(--z-toast); }

/* ========================================
   BORDER RADIUS
   ======================================== */

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

/* ========================================
   BORDERS
   ======================================== */

.border { border: var(--border-width) solid var(--gray-300); }
.border-0 { border: none; }
.border-t { border-top: var(--border-width) solid var(--gray-300); }
.border-b { border-bottom: var(--border-width) solid var(--gray-300); }
.border-l { border-left: var(--border-width) solid var(--gray-300); }
.border-r { border-right: var(--border-width) solid var(--gray-300); }

.border-black { border-color: var(--black); }
.border-gray-200 { border-color: var(--gray-200); }
.border-gray-300 { border-color: var(--gray-300); }
.border-terracotta { border-color: var(--wren-terracotta); }

/* ========================================
   SHADOWS
   ======================================== */

.shadow-none { box-shadow: none; }
.shadow-xs { box-shadow: var(--shadow-xs); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* ========================================
   TEXT
   ======================================== */

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

.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); }

.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; }

.font-sans { font-family: var(--font-sans); }
.font-display { font-family: var(--font-display); }

.leading-none { line-height: 1; }
.leading-tight { line-height: 1.25; }
.leading-snug { line-height: 1.375; }
.leading-normal { line-height: 1.5; }
.leading-relaxed { line-height: 1.625; }

.tracking-tight { letter-spacing: -0.025em; }
.tracking-normal { letter-spacing: 0; }
.tracking-wide { letter-spacing: 0.025em; }

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

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

/* Text colors */
.text-black { color: var(--black); }
.text-white { color: var(--white); }
.text-gray-500 { color: var(--gray-500); }
.text-gray-600 { color: var(--gray-600); }
.text-gray-700 { color: var(--gray-700); }
.text-gray-900 { color: var(--gray-900); }
.text-gray { color: var(--gray-600); }
.text-muted { color: var(--gray-500); }
.text-terracotta { color: var(--wren-terracotta); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }
.text-warning { color: var(--warning); }

/* ========================================
   BACKGROUNDS
   ======================================== */

.bg-white { background-color: var(--white); }
.bg-black { background-color: var(--black); }
.bg-gray-50 { background-color: var(--gray-50); }
.bg-gray-100 { background-color: var(--gray-100); }
.bg-gray-200 { background-color: var(--gray-200); }
.bg-terracotta { background-color: var(--wren-terracotta); }
.bg-terracotta-light { background-color: var(--wren-terracotta-light); }
.bg-transparent { background-color: transparent; }

/* ========================================
   CURSOR
   ======================================== */

.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; }
.cursor-grab { cursor: grab; }
.cursor-grabbing { cursor: grabbing; }

/* ========================================
   POINTER EVENTS
   ======================================== */

.pointer-events-none { pointer-events: none; }
.pointer-events-auto { pointer-events: auto; }

/* ========================================
   USER SELECT
   ======================================== */

.select-none { user-select: none; -webkit-user-select: none; }
.select-text { user-select: text; }
.select-all { user-select: all; }

/* ========================================
   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; }

/* ========================================
   TRANSITIONS
   ======================================== */

.transition-none { transition: none; }
.transition-all { transition: all var(--transition); }
.transition-fast { transition: all var(--transition-fast); }
.transition-slow { transition: all var(--transition-slow); }
.transition-colors { transition: color var(--transition), background-color var(--transition), border-color var(--transition); }
.transition-opacity { transition: opacity var(--transition); }
.transition-transform { transition: transform var(--transition); }

/* ========================================
   TRANSFORMS
   ======================================== */

.scale-95 { transform: scale(0.95); }
.scale-100 { transform: scale(1); }
.scale-105 { transform: scale(1.05); }

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

.translate-y-0 { transform: translateY(0); }
.translate-y-1 { transform: translateY(var(--space-1)); }
.-translate-y-1 { transform: translateY(calc(-1 * var(--space-1))); }

/* ========================================
   SCREEN READER ONLY
   ======================================== */

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

/* ========================================
   RESPONSIVE UTILITIES - MOBILE FIRST
   ======================================== */

/* Hide on mobile, show on tablet+ */
@media (max-width: 768px) {
    .md\:d-none { display: none !important; }
    .md\:d-block { display: block !important; }
    .md\:d-flex { display: flex !important; }
    .md\:flex-column { flex-direction: column; }
    .md\:w-full { width: 100%; }
    .md\:text-center { text-align: center; }
    .md\:gap-4 { gap: var(--space-4); }
    .md\:p-4 { padding: var(--space-4); }
    .md\:px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }

    /* Hide navbar menu on mobile */
    .navbar-menu { display: none; }
}

/* Small mobile (480px and below) */
@media (max-width: 480px) {
    .sm\:d-none { display: none !important; }
    .sm\:d-block { display: block !important; }
    .sm\:d-flex { display: flex !important; }
    .sm\:flex-column { flex-direction: column; }
    .sm\:w-full { width: 100%; }
    .sm\:text-center { text-align: center; }
    .sm\:gap-2 { gap: var(--space-2); }
    .sm\:gap-3 { gap: var(--space-3); }
    .sm\:p-3 { padding: var(--space-3); }
    .sm\:px-3 { padding-left: var(--space-3); padding-right: var(--space-3); }
    .sm\:text-sm { font-size: var(--text-sm); }
}

/* Desktop (769px and above) */
@media (min-width: 769px) {
    .lg\:d-none { display: none !important; }
    .lg\:d-block { display: block !important; }
    .lg\:d-flex { display: flex !important; }
    .lg\:flex-row { flex-direction: row; }
    .lg\:w-auto { width: auto; }
    .lg\:gap-6 { gap: var(--space-6); }
    .lg\:p-6 { padding: var(--space-6); }
    .lg\:px-8 { padding-left: var(--space-8); padding-right: var(--space-8); }
}

/* Large desktop (1024px and above) */
@media (min-width: 1024px) {
    .xl\:d-none { display: none !important; }
    .xl\:d-block { display: block !important; }
    .xl\:d-flex { display: flex !important; }
    .xl\:gap-8 { gap: var(--space-8); }
    .xl\:p-8 { padding: var(--space-8); }
}

/* ========================================
   TOUCH DEVICE UTILITIES
   ======================================== */

@media (hover: none) and (pointer: coarse) {
    .touch\:min-h-touch {
        min-height: var(--touch-target-min);
    }

    .touch\:p-4 {
        padding: var(--space-4);
    }
}

/* ========================================
   PRINT UTILITIES
   ======================================== */

@media print {
    .print\:hidden { display: none !important; }
    .print\:block { display: block !important; }
}