/* ============================================
   Tailwind CSS Utility Replacement
   Static CSS for all utility classes used across the site.
   Replaces the Tailwind CDN runtime (~300KB JS).
   ============================================ */

/* --- Reset / Base --- */
*, *::before, *::after { box-sizing: border-box; }

/* --- Layout & Display --- */
.min-h-screen { min-height: 100vh; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-1 { flex: 1 1 0%; }
.inline-block { display: inline-block; }
.block { display: block; }
.grid { display: grid; }
.hidden { display: none; }
.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; }
.justify-end { justify-content: flex-end; }
.flex-wrap { flex-wrap: wrap; }
.flex-shrink-0 { flex-shrink: 0; }

/* --- Position --- */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.top-0 { top: 0; }
.left-0 { left: 0; }
.right-0 { right: 0; }
.top-full { top: 100%; }
.top-1\/2 { top: 50%; }
.left-4 { left: 1rem; }
.right-4 { right: 1rem; }

/* --- Z-index --- */
.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-50 { z-index: 50; }

/* --- Sizing --- */
.w-full { width: 100%; }
.w-4 { width: 1rem; }
.w-5 { width: 1.25rem; }
.w-6 { width: 1.5rem; }
.h-2 { height: 0.5rem; }
.h-3 { height: 0.75rem; }
.h-4 { height: 1rem; }
.h-5 { height: 1.25rem; }
.h-6 { height: 1.5rem; }
.h-full { height: 100%; }
.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-6xl { max-width: 72rem; }
.min-w-\[200px\] { min-width: 200px; }

/* --- Grid --- */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.col-span-2 { grid-column: span 2 / span 2; }

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

/* --- Spacing: Padding --- */
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-5 { padding: 1.25rem; }
.p-6 { padding: 1.5rem; }
.px-1 { padding-left: 0.25rem; padding-right: 0.25rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.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-8 { padding-top: 2rem; padding-bottom: 2rem; }
.pl-4 { padding-left: 1rem; }
.pl-10 { padding-left: 2.5rem; }
.pr-2 { padding-right: 0.5rem; }
.pr-4 { padding-right: 1rem; }
.pt-8 { padding-top: 2rem; }

/* --- Spacing: Margin --- */
.mx-2 { margin-left: 0.5rem; margin-right: 0.5rem; }
.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-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }
.mt-20 { margin-top: 5rem; }
.mt-24 { margin-top: 6rem; }
.mt-auto { margin-top: auto; }
.ml-4 { margin-left: 1rem; }
.ml-6 { margin-left: 1.5rem; }

/* --- Gap --- */
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }

/* --- Space Between (children) --- */
.space-y-1 > * + * { margin-top: 0.25rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-3 > * + * { margin-top: 0.75rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-5 > * + * { margin-top: 1.25rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }

/* --- Typography: Size --- */
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.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-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-5xl { font-size: 3rem; line-height: 1; }
.text-6xl { font-size: 3.75rem; line-height: 1; }
.text-7xl { font-size: 4.5rem; line-height: 1; }

/* --- Typography: Weight --- */
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }

/* --- Typography: Alignment --- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* --- Typography: Other --- */
.leading-relaxed { line-height: 1.625; }
.leading-tight { line-height: 1.25; }
.italic { font-style: italic; }
.underline { text-decoration-line: underline; }
.uppercase { text-transform: uppercase; }
.whitespace-nowrap { white-space: nowrap; }

/* --- Text Colors --- */
.text-white { color: #fff; }
.text-white\/50 { color: rgba(255, 255, 255, 0.5); }
.text-white\/60 { color: rgba(255, 255, 255, 0.6); }
.text-white\/70 { color: rgba(255, 255, 255, 0.7); }
.text-white\/80 { color: rgba(255, 255, 255, 0.8); }
.text-white\/90 { color: rgba(255, 255, 255, 0.9); }
.text-yellow-200 { color: #fde68a; }
.text-yellow-300 { color: #fcd34d; }
.text-yellow-400 { color: #fbbf24; }
.text-gray-700 { color: #374151; }
.text-gray-900 { color: #111827; }
.text-green-300 { color: #86efac; }
.text-red-300 { color: #fca5a5; }
.text-red-400 { color: #f87171; }

/* --- Background Colors --- */
.bg-white\/5 { background-color: rgba(255, 255, 255, 0.05); }
.bg-white\/10 { background-color: rgba(255, 255, 255, 0.1); }
.bg-white\/15 { background-color: rgba(255, 255, 255, 0.15); }
.bg-white\/20 { background-color: rgba(255, 255, 255, 0.2); }
.bg-white\/30 { background-color: rgba(255, 255, 255, 0.3); }
.bg-gray-900\/95 { background-color: rgba(17, 24, 39, 0.95); }
.bg-green-500\/20 { background-color: rgba(34, 197, 94, 0.2); }
.bg-red-500\/20 { background-color: rgba(239, 68, 68, 0.2); }
.bg-yellow-500\/20 { background-color: rgba(234, 179, 8, 0.2); }

/* --- Gradients --- */
.bg-gradient-to-r { background-image: linear-gradient(to right, var(--tw-gradient-from), var(--tw-gradient-to)); }
.from-yellow-400\/20 { --tw-gradient-from: rgba(251, 191, 36, 0.2); --tw-gradient-to: rgba(251, 191, 36, 0); }
.to-yellow-600\/20 { --tw-gradient-to: rgba(202, 138, 4, 0.2); }
.from-yellow-400 { --tw-gradient-from: #fbbf24; --tw-gradient-to: rgba(251, 191, 36, 0); }
.to-yellow-600 { --tw-gradient-to: #ca8a04; }

/* --- Borders --- */
.border { border-width: 1px; border-style: solid; }
.border-2 { border-width: 2px; border-style: solid; }
.border-transparent { border-color: transparent; }
.border-green-500\/30 { border-color: rgba(34, 197, 94, 0.3); }
.border-red-500\/30 { border-color: rgba(239, 68, 68, 0.3); }
.border-yellow-500 { border-color: #eab308; }

/* --- 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; }

/* --- Shadows --- */
.shadow-inner { box-shadow: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05); }
.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-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); }

/* --- Effects --- */
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.backdrop-blur-sm { -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
.drop-shadow-2xl { filter: drop-shadow(0 25px 25px rgba(0, 0, 0, 0.15)); }

/* --- Transforms --- */
.transform { transform: translate(var(--tw-translate-x, 0), var(--tw-translate-y, 0)) rotate(var(--tw-rotate, 0)) skewX(var(--tw-skew-x, 0)) skewY(var(--tw-skew-y, 0)) scaleX(var(--tw-scale-x, 1)) scaleY(var(--tw-scale-y, 1)); }
.-translate-y-1\/2 { transform: translateY(-50%); }

/* --- 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, text-decoration-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; }
.duration-300 { transition-duration: 300ms; }

/* --- Interactivity --- */
.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }
.appearance-none { -webkit-appearance: none; -moz-appearance: none; appearance: none; }
.outline-none { outline: 2px solid transparent; outline-offset: 2px; }
.resize-vertical { resize: vertical; }
.pointer-events-none { pointer-events: none; }
.select-none { -webkit-user-select: none; -moz-user-select: none; user-select: none; }

/* --- List Styles --- */
.list-disc { list-style-type: disc; }
.list-inside { list-style-position: inside; }

/* --- SVG --- */
.fill-none { fill: none; }
.stroke-current { stroke: currentColor; }

/* --- Hover States --- */
.hover\:text-yellow-200:hover { color: #fde68a; }
.hover\:text-yellow-300:hover { color: #fcd34d; }
.hover\:text-yellow-400:hover { color: #fbbf24; }
.hover\:bg-white\/20:hover { background-color: rgba(255, 255, 255, 0.2); }
.hover\:bg-white\/30:hover { background-color: rgba(255, 255, 255, 0.3); }

/* --- Focus States --- */
.focus\:ring-4:focus { box-shadow: 0 0 0 4px var(--tw-ring-color, rgba(59, 130, 246, 0.5)); }
.focus\:ring-yellow-400\/30:focus { --tw-ring-color: rgba(251, 191, 36, 0.3); box-shadow: 0 0 0 4px rgba(251, 191, 36, 0.3); }

/* --- Disabled States --- */
.disabled\:opacity-50:disabled { opacity: 0.5; }
.disabled\:cursor-not-allowed:disabled { cursor: not-allowed; }

/* ============================================
   Responsive: sm (640px+)
   ============================================ */
@media (min-width: 640px) {
  .sm\:hidden { display: none; }
  .sm\:flex { display: flex; }
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sm\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .sm\:col-span-1 { grid-column: span 1 / span 1; }
  .sm\:col-span-2 { grid-column: span 2 / span 2; }
  .sm\:col-span-3 { grid-column: span 3 / span 3; }
  .sm\:p-4 { padding: 1rem; }
  .sm\:p-6 { padding: 1.5rem; }
  .sm\:p-8 { padding: 2rem; }
  .sm\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
  .sm\:py-4 { padding-top: 1rem; padding-bottom: 1rem; }
  .sm\:gap-4 { gap: 1rem; }
  .sm\:gap-6 { gap: 1.5rem; }
  .sm\:mb-12 { margin-bottom: 3rem; }
  .sm\:mt-12 { margin-top: 3rem; }
  .sm\:text-xs { font-size: 0.75rem; line-height: 1rem; }
  .sm\:text-sm { font-size: 0.875rem; line-height: 1.25rem; }
  .sm\:text-base { font-size: 1rem; line-height: 1.5rem; }
  .sm\:text-lg { font-size: 1.125rem; line-height: 1.75rem; }
  .sm\:text-xl { font-size: 1.25rem; line-height: 1.75rem; }
  .sm\:text-2xl { font-size: 1.5rem; line-height: 2rem; }
  .sm\:text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
  .sm\:text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
  .sm\:text-5xl { font-size: 3rem; line-height: 1; }
  .sm\:text-6xl { font-size: 3.75rem; line-height: 1; }
  .sm\:text-7xl { font-size: 4.5rem; line-height: 1; }
  .sm\:h-5 { height: 1.25rem; }
}

/* ============================================
   Responsive: md (768px+)
   ============================================ */
@media (min-width: 768px) {
  .md\:p-10 { padding: 2.5rem; }
  .md\:text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
  .md\:text-5xl { font-size: 3rem; line-height: 1; }
  .md\:text-6xl { font-size: 3.75rem; line-height: 1; }
}

/* ============================================
   Responsive: lg (1024px+)
   ============================================ */
@media (min-width: 1024px) {
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}