/* ============================================================
   Tailwind-equivalent utility CSS — replaces CDN entirely
   Only includes classes actually used on the site (~290 classes)
   ============================================================ */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
img, picture, video, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; }

/* --- Font Family --- */
.font-inter { font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif; }

/* --- Antialiased --- */
.antialiased { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

/* --- Display & Position --- */
.block { display: block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.hidden { display: none; }
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }

/* --- Flex --- */
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1 1 0%; }
.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; }

/* --- Grid --- */
.gap-0\.5 { gap: 0.125rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.gap-10 { gap: 2.5rem; }
.gap-12 { gap: 3rem; }
.gap-x-4 { column-gap: 1rem; }
.gap-y-2 { row-gap: 0.5rem; }

/* --- Spacing (Margin) --- */
.mx-auto { margin-left: auto; margin-right: auto; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.25rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.mt-0\.5 { margin-top: 0.125rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-10 { margin-top: 2.5rem; }

/* --- Spacing (Padding) --- */
.p-4 { padding: 1rem; }
.p-5 { padding: 1.25rem; }
.p-6 { padding: 1.5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-5 { padding-left: 1.25rem; padding-right: 1.25rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-2\.5 { padding-top: 0.625rem; padding-bottom: 0.625rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }
.pb-5 { padding-bottom: 1.25rem; }
.pt-3 { padding-top: 0.75rem; }
.pt-4 { padding-top: 1rem; }
.pt-8 { padding-top: 2rem; }
.pt-20 { padding-top: 5rem; }

/* --- Width & Height --- */
.w-2 { width: 0.5rem; }
.w-4 { width: 1rem; }
.w-5 { width: 1.25rem; }
.w-7 { width: 1.75rem; }
.w-8 { width: 2rem; }
.w-10 { width: 2.5rem; }
.w-12 { width: 3rem; }
.w-14 { width: 3.5rem; }
.w-16 { width: 4rem; }
.w-20 { width: 5rem; }
.w-24 { width: 6rem; }
.w-28 { width: 7rem; }
.w-72 { width: 18rem; }
.w-96 { width: 24rem; }
.w-full { width: 100%; }
.h-2 { height: 0.5rem; }
.h-4 { height: 1rem; }
.h-5 { height: 1.25rem; }
.h-7 { height: 1.75rem; }
.h-8 { height: 2rem; }
.h-10 { height: 2.5rem; }
.h-12 { height: 3rem; }
.h-14 { height: 3.5rem; }
.h-16 { height: 4rem; }
.h-20 { height: 5rem; }
.h-24 { height: 6rem; }
.h-28 { height: 7rem; }
.h-48 { height: 12rem; }
.h-72 { height: 18rem; }
.h-80 { height: 20rem; }
.h-96 { height: 24rem; }
.h-full { height: 100%; }
.min-h-\[90vh\] { min-height: 90vh; }
.max-h-\[90vh\] { max-height: 90vh; }
.max-w-md { max-width: 28rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-6xl { max-width: 72rem; }
.max-w-7xl { max-width: 80rem; }

/* --- Positioning --- */
.inset-0 { inset: 0; }
.-inset-3 { inset: -0.75rem; }
.top-0 { top: 0; }
.top-3 { top: 0.75rem; }
.top-4 { top: 1rem; }
.top-6 { top: 1.5rem; }
.top-20 { top: 5rem; }
.bottom-2 { bottom: 0.5rem; }
.bottom-4 { bottom: 1rem; }
.bottom-6 { bottom: 1.5rem; }
.bottom-20 { bottom: 5rem; }
.left-0 { left: 0; }
.left-4 { left: 1rem; }
.left-6 { left: 1.5rem; }
.left-10 { left: 2.5rem; }
.right-0 { right: 0; }
.right-4 { right: 1rem; }
.right-6 { right: 1.5rem; }
.right-8 { right: 2rem; }
.right-10 { right: 2.5rem; }
.z-10 { z-index: 10; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }

/* --- Typography --- */
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-5xl { font-size: 3rem; line-height: 1; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }
.leading-tight { line-height: 1.25; }
.tracking-wider { letter-spacing: 0.05em; }
.uppercase { text-transform: uppercase; }
.text-center { text-align: center; }
.cursor-pointer { cursor: pointer; }
.outline-none { outline: 2px solid transparent; outline-offset: 2px; }
.resize-none { resize: none; }

/* --- Colors: Text --- */
.text-white { color: #fff; }
.text-white\/80 { color: rgba(255,255,255,0.8); }
.text-gray-400 { color: #9ca3af; }
.text-gray-500 { color: #6b7280; }
.text-gray-600 { color: #4b5563; }
.text-gray-700 { color: #374151; }
.text-gray-800 { color: #1f2937; }
.text-gray-900 { color: #111827; }
.text-red-500 { color: #ef4444; }
.text-amber-300 { color: #fcd34d; }
.text-amber-400 { color: #fbbf24; }
.text-amber-700 { color: #b45309; }
.text-green-700 { color: #15803d; }
.text-rose-700 { color: #be123c; }
.text-purple-700 { color: #7e22ce; }
.text-teal-100 { color: #ccfbf1; }
.text-teal-200 { color: #99f6e4; }
.text-teal-300 { color: #5eead4; }
.text-primary-600 { color: #0d9488; }
.text-primary-700 { color: #0f766e; }
.text-primary-800 { color: #115e59; }

/* --- Colors: Background --- */
.bg-white { background-color: #fff; }
.bg-white\/5 { background-color: rgba(255,255,255,0.05); }
.bg-white\/10 { background-color: rgba(255,255,255,0.1); }
.bg-white\/20 { background-color: rgba(255,255,255,0.2); }
.bg-black\/60 { background-color: rgba(0,0,0,0.6); }
.bg-slate-50 { background-color: #f8fafc; }
.bg-slate-100 { background-color: #f1f5f9; }
.bg-gray-100 { background-color: #f3f4f6; }
.bg-gray-900 { background-color: #111827; }
.bg-green-100 { background-color: #dcfce7; }
.bg-green-400 { background-color: #4ade80; }
.bg-green-500 { background-color: #22c55e; }
.bg-amber-100 { background-color: #fef3c7; }
.bg-yellow-100 { background-color: #fef9c3; }
.bg-rose-100 { background-color: #ffe4e6; }
.bg-purple-100 { background-color: #f3e8ff; }
.bg-teal-200 { background-color: #99f6e4; }
.bg-primary-100 { background-color: #ccfbf1; }
.bg-primary-900 { background-color: #134e4a; }
.bg-accent-500 { background-color: #f59e0b; }

/* --- Gradients --- */
.bg-gradient-to-b { background-image: linear-gradient(to bottom, var(--tw-gradient-from), var(--tw-gradient-to)); }
.bg-gradient-to-br { background-image: linear-gradient(to bottom right, var(--tw-gradient-from), var(--tw-gradient-to)); }
.from-white { --tw-gradient-from: #fff; --tw-gradient-to: rgba(255,255,255,0); }
.from-primary-600 { --tw-gradient-from: #0d9488; --tw-gradient-to: rgba(13,148,136,0); }
.from-primary-800 { --tw-gradient-from: #115e59; --tw-gradient-to: rgba(17,94,89,0); }
.from-amber-400 { --tw-gradient-from: #fbbf24; --tw-gradient-to: rgba(251,191,36,0); }
.from-teal-400 { --tw-gradient-from: #2dd4bf; --tw-gradient-to: rgba(45,212,191,0); }
.from-violet-400 { --tw-gradient-from: #a78bfa; --tw-gradient-to: rgba(167,139,250,0); }
.to-slate-50 { --tw-gradient-to: #f8fafc; }
.to-primary-800 { --tw-gradient-to: #115e59; }
.to-primary-900 { --tw-gradient-to: #134e4a; }
.to-red-400 { --tw-gradient-to: #f87171; }
.to-blue-500 { --tw-gradient-to: #3b82f6; }
.to-indigo-500 { --tw-gradient-to: #6366f1; }
.via-orange-400 { --tw-gradient-stops: var(--tw-gradient-from), #fb923c, var(--tw-gradient-to); }
.via-cyan-500 { --tw-gradient-stops: var(--tw-gradient-from), #06b6d4, var(--tw-gradient-to); }
.via-purple-500 { --tw-gradient-stops: var(--tw-gradient-from), #a855f7, var(--tw-gradient-to); }

/* Fix gradients to use stops properly */
.bg-gradient-to-b { background-image: linear-gradient(to bottom, var(--tw-gradient-stops, var(--tw-gradient-from), var(--tw-gradient-to))); }
.bg-gradient-to-br { background-image: linear-gradient(to bottom right, var(--tw-gradient-stops, var(--tw-gradient-from), var(--tw-gradient-to))); }

/* --- Border --- */
.border { border-width: 1px; border-style: solid; border-color: #e5e7eb; }
.border-b { border-bottom-width: 1px; border-bottom-style: solid; border-bottom-color: #e5e7eb; }
.border-t { border-top-width: 1px; border-top-style: solid; border-top-color: #e5e7eb; }
.border-gray-100 { border-color: #f3f4f6; }
.border-gray-200 { border-color: #e5e7eb; }
.border-gray-800 { border-color: #1f2937; }
.border-white\/20 { border-color: rgba(255,255,255,0.2); }
.border-white\/30 { border-color: rgba(255,255,255,0.3); }

/* --- Border Radius --- */
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-3xl { border-radius: 1.5rem; }
.rounded-full { border-radius: 9999px; }

/* --- Shadow --- */
.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0,0,0,0.05); }
.shadow-xl { box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1); }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25); }

/* --- Overflow --- */
.overflow-hidden { overflow: hidden; }
.overflow-y-auto { overflow-y: auto; }

/* --- Object Fit --- */
.object-cover { object-fit: cover; }
.object-center { object-position: center; }

/* --- Opacity --- */
.opacity-10 { opacity: 0.1; }
.opacity-90 { opacity: 0.9; }

/* --- Blur --- */
.blur-xl { filter: blur(24px); }
.blur-3xl { filter: blur(64px); }
.backdrop-blur-sm { -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }

/* --- Transitions --- */
.transition-all { transition-property: all; transition-timing-function: cubic-bezier(0.4,0,0.2,1); transition-duration: 150ms; }
.transition-colors { transition-property: color, background-color, border-color, fill, stroke; transition-timing-function: cubic-bezier(0.4,0,0.2,1); transition-duration: 150ms; }
.transition-transform { transition-property: transform; transition-timing-function: cubic-bezier(0.4,0,0.2,1); transition-duration: 150ms; }

/* --- Animation --- */
.animate-pulse { animation: pulse 2s cubic-bezier(0.4,0,0.6,1) infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .5; } }

/* --- Space utilities --- */
.space-y-2 > :not(:first-child) { margin-top: 0.5rem; }
.space-y-3 > :not(:first-child) { margin-top: 0.75rem; }
.space-y-4 > :not(:first-child) { margin-top: 1rem; }
.space-y-6 > :not(:first-child) { margin-top: 1.5rem; }

/* --- Focus --- */
.focus\:ring-2:focus { box-shadow: 0 0 0 2px var(--tw-ring-color, rgba(13,148,136,0.5)); }
.focus\:ring-primary-500:focus { --tw-ring-color: rgba(20,184,166,0.5); }
.focus\:border-transparent:focus { border-color: transparent; }

/* --- Hover --- */
.hover\:-translate-y-1:hover { transform: translateY(-0.25rem); }
.hover\:bg-gray-200:hover { background-color: #e5e7eb; }
.hover\:bg-green-600:hover { background-color: #16a34a; }
.hover\:shadow-lg:hover { box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1); }
.hover\:shadow-2xl:hover { box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25); }
.hover\:text-white:hover { color: #fff; }
.hover\:text-primary-600:hover { color: #0d9488; }
.hover\:text-primary-700:hover { color: #0f766e; }

/* --- Group Hover --- */
.group:hover .group-hover\:scale-105 { transform: scale(1.05); }
.group:hover .group-hover\:text-primary-600 { color: #0d9488; }

/* --- Group Open (for details/summary) --- */
.group[open] .group-open\:rotate-180 { transform: rotate(180deg); }

/* --- Responsive: sm (640px) --- */
@media (min-width: 640px) {
  .sm\:block { display: block; }
  .sm\:flex { display: flex; }
  .sm\:inline { display: inline; }
  .sm\:flex-row { flex-direction: row; }
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sm\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
  .sm\:p-8 { padding: 2rem; }
  .sm\:text-xl { font-size: 1.25rem; line-height: 1.75rem; }
  .sm\:text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
  .sm\:text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
  .sm\:h-80 { height: 20rem; }
  .sm\:right-6 { right: 1.5rem; }
  .sm\:bottom-6 { bottom: 1.5rem; }
}

/* --- Responsive: md (768px) --- */
@media (min-width: 768px) {
  .md\:flex { display: flex; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* --- Responsive: lg (1024px) --- */
@media (min-width: 1024px) {
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:gap-14 { gap: 3.5rem; }
  .lg\:text-5xl { font-size: 3rem; line-height: 1; }
  .lg\:h-96 { height: 24rem; }
  .lg\:h-\[430px\] { height: 430px; }
}
/* ============================================================
   Additional utilities for blog pages and subpages
   (Supplement to tailwind-custom.css)
   ============================================================ */

/* --- Font family --- */
.font-sans {
    font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
}

.font-serif {
    font-family: 'Merriweather', Georgia, serif;
}

.font-normal {
    font-weight: 400;
}

/* --- Additional display --- */
.sticky {
    position: sticky;
}

.italic {
    font-style: italic;
}

/* --- Additional sizing --- */
.h-3 {
    height: 0.75rem;
}

.h-9 {
    height: 2.25rem;
}

.w-3 {
    width: 0.75rem;
}

.w-9 {
    width: 2.25rem;
}

.w-16 {
    width: 4rem;
}

.h-16 {
    height: 4rem;
}

.w-2\/3 {
    width: 66.666667%;
}

.w-3\/4 {
    width: 75%;
}

.w-4\/6 {
    width: 66.666667%;
}

.w-5\/6 {
    width: 83.333333%;
}

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

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

.max-w-sm {
    max-width: 24rem;
}

.max-w-lg {
    max-width: 32rem;
}

.max-w-xl {
    max-width: 36rem;
}

.max-w-4xl {
    max-width: 56rem;
}

.max-w-5xl {
    max-width: 64rem;
}

.max-w-none {
    max-width: none;
}

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

/* --- Additional text sizes --- */
.text-base {
    font-size: 1rem;
    line-height: 1.5rem;
}

.text-9xl {
    font-size: 8rem;
    line-height: 1;
}

/* --- Additional line-height --- */
.leading-relaxed {
    line-height: 1.625;
}

.leading-snug {
    line-height: 1.375;
}

/* --- Text alignment --- */
.text-left {
    text-align: left;
}

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

/* --- Lists --- */
.list-disc {
    list-style-type: disc;
}

.list-decimal {
    list-style-type: decimal;
}

/* --- Additional spacing --- */
.mb-0 {
    margin-bottom: 0;
}

.ml-5 {
    margin-left: 1.25rem;
}

.ml-6 {
    margin-left: 1.5rem;
}

.mt-0 {
    margin-top: 0;
}

.mt-1 {
    margin-top: 0.25rem;
}

.mt-2 {
    margin-top: 0.5rem;
}

.mt-3 {
    margin-top: 0.75rem;
}

.mt-5 {
    margin-top: 1.25rem;
}

.mt-12 {
    margin-top: 3rem;
}

.mx-1 {
    margin-left: 0.25rem;
    margin-right: 0.25rem;
}

.my-6 {
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
}

.my-8 {
    margin-top: 2rem;
    margin-bottom: 2rem;
}

.my-10 {
    margin-top: 2.5rem;
    margin-bottom: 2.5rem;
}

.pb-0 {
    padding-bottom: 0;
}

.pb-2 {
    padding-bottom: 0.5rem;
}

.pb-4 {
    padding-bottom: 1rem;
}

.pt-6 {
    padding-top: 1.5rem;
}

.py-8 {
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.py-10 {
    padding-top: 2.5rem;
    padding-bottom: 2.5rem;
}

.p-3 {
    padding: 0.75rem;
}

/* --- Additional space utilities --- */
.space-x-3> :not(:first-child) {
    margin-left: 0.75rem;
}

.space-x-4> :not(:first-child) {
    margin-left: 1rem;
}

.space-y-1> :not(:first-child) {
    margin-top: 0.25rem;
}

/* --- Additional colors: backgrounds --- */
.bg-brand-50 {
    background-color: #eff6ff;
}

.bg-brand-500 {
    background-color: #3b82f6;
}

.bg-brand-600 {
    background-color: #2563eb;
}

.bg-blue-50 {
    background-color: #eff6ff;
}

.bg-blue-100 {
    background-color: #dbeafe;
}

.bg-blue-200 {
    background-color: #bfdbfe;
}

.bg-blue-500 {
    background-color: #3b82f6;
}

.bg-blue-600 {
    background-color: #2563eb;
}

.bg-blue-700 {
    background-color: #1d4ed8;
}

.bg-emerald-100 {
    background-color: #d1fae5;
}

.bg-emerald-200 {
    background-color: #a7f3d0;
}

.bg-emerald-600 {
    background-color: #059669;
}

.bg-emerald-700 {
    background-color: #047857;
}

.bg-gray-50 {
    background-color: #f9fafb;
}

.bg-gray-200 {
    background-color: #e5e7eb;
}

.bg-gray-300 {
    background-color: #d1d5db;
}

.bg-green-200 {
    background-color: #bbf7d0;
}

.bg-green-500 {
    background-color: #22c55e;
}

.bg-indigo-50 {
    background-color: #eef2ff;
}

.bg-purple-200 {
    background-color: #e9d5ff;
}

.bg-purple-500 {
    background-color: #a855f7;
}

.bg-purple-700 {
    background-color: #7e22ce;
}

.bg-red-100 {
    background-color: #fee2e2;
}

.bg-red-200 {
    background-color: #fecaca;
}

.bg-red-500 {
    background-color: #ef4444;
}

.bg-red-600 {
    background-color: #dc2626;
}

.bg-yellow-200 {
    background-color: #fef08a;
}

/* --- Additional colors: text --- */
.text-brand-600 {
    color: #2563eb;
}

.text-brand-700 {
    color: #1d4ed8;
}

.text-brand-800 {
    color: #1e40af;
}

.text-blue-100 {
    color: #dbeafe;
}

.text-blue-400 {
    color: #60a5fa;
}

.text-blue-500 {
    color: #3b82f6;
}

.text-blue-600 {
    color: #2563eb;
}

.text-blue-700 {
    color: #1d4ed8;
}

.text-blue-900 {
    color: #1e3a8a;
}

.text-emerald-600 {
    color: #059669;
}

.text-emerald-800 {
    color: #065f46;
}

.text-green-600 {
    color: #16a34a;
}

.text-green-800 {
    color: #166534;
}

.text-red-700 {
    color: #b91c1c;
}

.text-red-800 {
    color: #991b1b;
}

.text-red-900 {
    color: #7f1d1d;
}

.text-slate-400 {
    color: #94a3b8;
}

.text-slate-500 {
    color: #64748b;
}

.text-slate-600 {
    color: #475569;
}

.text-slate-800 {
    color: #1e293b;
}

.text-yellow-400 {
    color: #facc15;
}

/* --- Additional colors: border --- */
.border-brand-600 {
    border-color: #2563eb;
}

.border-blue-100 {
    border-color: #dbeafe;
}

.border-blue-200 {
    border-color: #bfdbfe;
}

.border-slate-100 {
    border-color: #f1f5f9;
}

.border-yellow-200 {
    border-color: #fef08a;
}

.border-gray-300 {
    border-color: #d1d5db;
}

.border-none {
    border: none;
}

.border-l-4 {
    border-left-width: 4px;
    border-left-style: solid;
}

/* --- Additional gradients --- */
.from-blue-50 {
    --tw-gradient-from: #eff6ff;
    --tw-gradient-to: rgba(239, 246, 255, 0);
}

.from-brand-600 {
    --tw-gradient-from: #2563eb;
    --tw-gradient-to: rgba(37, 99, 235, 0);
}

.to-indigo-50 {
    --tw-gradient-to: #eef2ff;
}

.to-brand-700 {
    --tw-gradient-to: #1d4ed8;
}

.to-pink-50 {
    --tw-gradient-to: #fdf2f8;
}

.bg-gradient-to-r {
    background-image: linear-gradient(to right, var(--tw-gradient-stops, var(--tw-gradient-from), var(--tw-gradient-to)));
}

/* --- Additional rounded --- */
.rounded {
    border-radius: 0.25rem;
}

.rounded-r-lg {
    border-top-right-radius: 0.5rem;
    border-bottom-right-radius: 0.5rem;
}

/* --- Additional shadows --- */
.shadow-lg {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

.shadow-md {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

/* --- Overflow --- */
.overflow-x-auto {
    overflow-x: auto;
}

/* --- Additional hover --- */
.hover\:underline:hover {
    text-decoration: underline;
}

.hover\:shadow-md:hover {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

.hover\:bg-blue-50:hover {
    background-color: #eff6ff;
}

.hover\:bg-blue-700:hover {
    background-color: #1d4ed8;
}

.hover\:bg-brand-400:hover {
    background-color: #60a5fa;
}

.hover\:bg-emerald-700:hover {
    background-color: #047857;
}

.hover\:bg-purple-700:hover {
    background-color: #7e22ce;
}

.hover\:text-blue-700:hover {
    color: #1d4ed8;
}

.hover\:text-brand-600:hover {
    color: #2563eb;
}

/* --- Group hover for brand --- */
.group:hover .group-hover\:text-brand-600 {
    color: #2563eb;
}

/* --- Transitions --- */
.transition-shadow {
    transition-property: box-shadow;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 150ms;
}

/* --- Backdrop blur md --- */
.backdrop-blur-md {
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
}

/* --- Additional responsive: sm --- */
@media (min-width: 640px) {
    .sm\:text-base {
        font-size: 1rem;
        line-height: 1.5rem;
    }

    .sm\:text-2xl {
        font-size: 1.5rem;
        line-height: 2rem;
    }

    .sm\:py-12 {
        padding-top: 3rem;
        padding-bottom: 3rem;
    }

    .sm\:space-x-4> :not(:first-child) {
        margin-left: 1rem;
    }
}

/* --- Additional responsive: lg --- */
@media (min-width: 1024px) {
    .lg\:grid-cols-4 {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

/* --- Prose-like typography for blog --- */
.prose-slate {
    color: #334155;
}

.prose-blue a {
    color: #2563eb;
}

/* --- Skeleton loading --- */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s infinite;
}

@keyframes skeleton-shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

/* --- White with opacity (text) --- */
.bg-white\/70 {
    background-color: rgba(255, 255, 255, 0.7);
}

.bg-white\/80 {
    background-color: rgba(255, 255, 255, 0.8);
}

.bg-white\/90 {
    background-color: rgba(255, 255, 255, 0.9);
}

.text-white\/70 {
    color: rgba(255, 255, 255, 0.7);
}

.text-white\/80 {
    color: rgba(255, 255, 255, 0.8);
}