/* ==========================================================================
   HEIX Design System & Complete Utility Stylesheet — 2026 Production Edition
   Zero dependencies · Ultra lightweight · 100% self-contained
   ========================================================================== */

:root {
  --canvas: #080b11;
  --surface-card: #0f1523;
  --surface-elevated: #161e31;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-card: rgba(255, 255, 255, 0.12);
  --border-highlight: rgba(52, 211, 153, 0.35);

  --emerald-300: #6ee7b7;
  --emerald-400: #34d399;
  --emerald-500: #10b981;
  --cyan-300: #67e8f9;
  --cyan-400: #22d3ee;
  --cyan-500: #06b6d4;
  --amber-400: #fbbf24;
  --rose-500: #f43f5e;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  background-color: var(--canvas);
  color: var(--text-primary);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  background-color: var(--canvas);
}

a {
  color: inherit;
  text-decoration: none;
}

/* Background Grids & Ambient Lights */
.bg-grid {
  background-size: 40px 40px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
}

.bg-gradient-radial {
  background: radial-gradient(circle, var(--tw-gradient-stops, rgba(16, 185, 129, 0.1) 0%, transparent 70%));
}

.blur-3xl { filter: blur(64px); }
.blur-xl { filter: blur(24px); }

/* Containers */
.max-w-7xl { max-width: 80rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-xl { max-width: 36rem; }
.max-w-sm { max-width: 24rem; }
.max-w-xs { max-width: 20rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Spacing */
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-2\.5 { padding-left: 0.625rem; padding-right: 0.625rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.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-0\.5 { padding-top: 0.125rem; padding-bottom: 0.125rem; }
.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-1\.5 { padding-top: 0.375rem; padding-bottom: 0.375rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-3\.5 { padding-top: 0.875rem; padding-bottom: 0.875rem; }
.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; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }

.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-3\.5 { padding: 0.875rem; }
.p-4 { padding: 1rem; }
.p-5 { padding: 1.25rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }

.pt-1 { padding-top: 0.25rem; }
.pt-2 { padding-top: 0.5rem; }
.pt-4 { padding-top: 1rem; }
.pt-6 { padding-top: 1.5rem; }
.pt-8 { padding-top: 2rem; }
.pt-16 { padding-top: 4rem; }
.pb-2 { padding-bottom: 0.5rem; }
.pb-3 { padding-bottom: 0.75rem; }
.pb-8 { padding-bottom: 2rem; }
.pb-20 { padding-bottom: 5rem; }

.mt-0\.5 { margin-top: 0.125rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-2\.5 { margin-top: 0.625rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-14 { margin-top: 3.5rem; }
.mt-16 { margin-top: 4rem; }
.-mt-1 { margin-top: -0.25rem; }

.mb-2 { margin-bottom: 0.5rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }

.ml-2 { margin-left: 0.5rem; }

/* Display & Layout */
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.hidden { display: none !important; }

.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1 1 0%; }
.shrink-0 { flex-shrink: 0; }
.min-w-0 { min-width: 0px; }

.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-6 > * + * { margin-top: 1.5rem; }
.space-y-8 > * + * { margin-top: 2rem; }

.gap-0\.5 { gap: 0.125rem; }
.gap-1 { gap: 0.25rem; }
.gap-1\.5 { gap: 0.375rem; }
.gap-2 { gap: 0.5rem; }
.gap-2\.5 { gap: 0.625rem; }
.gap-3 { gap: 0.75rem; }
.gap-3\.5 { gap: 0.875rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.gap-10 { gap: 2.5rem; }
.gap-12 { gap: 3rem; }

.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; }

/* Positioning */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.top-0 { top: 0px; }
.right-0 { right: 0px; }
.left-0 { left: 0px; }
.left-1\.2 { left: 50%; }
.inset-0 { inset: 0px; }
.-inset-1 { inset: -0.25rem; }
.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-50 { z-index: 50; }
.-translate-x-1\/2 { transform: translateX(-50%); }

.overflow-hidden { overflow: hidden; }
.overflow-x-auto { overflow-x: auto; }

/* Sizing */
.w-full { width: 100%; }
.w-0\.5 { width: 0.125rem; }
.w-1\.5 { width: 0.375rem; }
.w-2 { width: 0.5rem; }
.w-2\.5 { width: 0.625rem; }
.w-3 { width: 0.75rem; }
.w-3\.5 { width: 0.875rem; }
.w-4 { width: 1rem; }
.w-5 { width: 1.25rem; }
.w-6 { width: 1.5rem; }
.w-7 { width: 1.75rem; }
.w-8 { width: 2rem; }
.w-9 { width: 2.25rem; }
.w-11 { width: 2.75rem; }
.w-12 { width: 3rem; }

.h-full { height: 100%; }
.h-1 { height: 0.25rem; }
.h-1\.5 { height: 0.375rem; }
.h-2 { height: 0.5rem; }
.h-2\.5 { height: 0.625rem; }
.h-3 { height: 0.75rem; }
.h-3\.5 { height: 0.875rem; }
.h-4 { height: 1rem; }
.h-5 { height: 1.25rem; }
.h-6 { height: 1.5rem; }
.h-7 { height: 1.75rem; }
.h-8 { height: 2rem; }
.h-9 { height: 2.25rem; }
.h-11 { height: 2.75rem; }
.h-12 { height: 3rem; }
.h-16 { height: 4rem; }

/* Typography */
.font-sans { font-family: var(--font-sans); }
.font-mono { font-family: var(--font-mono); }

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

.text-\[9px\] { font-size: 9px; }
.text-\[10px\] { font-size: 10px; }
.text-\[11px\] { font-size: 11px; }
.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; }

.leading-relaxed { line-height: 1.625; }
.leading-tight { line-height: 1.25; }
.leading-\[1\.15\] { line-height: 1.15; }

.tracking-tight { letter-spacing: -0.025em; }
.tracking-wide { letter-spacing: 0.025em; }
.tracking-wider { letter-spacing: 0.05em; }
.tracking-widest { letter-spacing: 0.1em; }
.uppercase { text-transform: uppercase; }
.italic { font-style: italic; }

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

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

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Colors */
.text-white { color: #ffffff; }
.text-canvas { color: var(--canvas); }
.text-emerald-300 { color: var(--emerald-300); }
.text-emerald-400 { color: var(--emerald-400); }
.text-cyan-300 { color: var(--cyan-300); }
.text-cyan-400 { color: var(--cyan-400); }
.text-amber-400 { color: var(--amber-400); }
.text-rose-500 { color: var(--rose-500); }
.text-text-primary { color: var(--text-primary); }
.text-text-secondary { color: var(--text-secondary); }
.text-text-muted { color: var(--text-muted); }

.bg-canvas { background-color: var(--canvas); }
.bg-canvas\/80 { background-color: rgba(8, 11, 17, 0.8); }
.bg-surface-card { background-color: var(--surface-card); }
.bg-surface-card\/80 { background-color: rgba(15, 21, 35, 0.8); }
.bg-surface-card\/95 { background-color: rgba(15, 21, 35, 0.95); }
.bg-surface-card\/40 { background-color: rgba(15, 21, 35, 0.4); }
.bg-surface-card\/30 { background-color: rgba(15, 21, 35, 0.3); }
.bg-surface-card\/20 { background-color: rgba(15, 21, 35, 0.2); }
.bg-surface-elevated { background-color: var(--surface-elevated); }
.bg-surface-elevated\/80 { background-color: rgba(22, 30, 49, 0.8); }
.bg-surface-elevated\/70 { background-color: rgba(22, 30, 49, 0.7); }
.bg-surface-elevated\/50 { background-color: rgba(22, 30, 49, 0.5); }
.bg-surface-elevated\/40 { background-color: rgba(22, 30, 49, 0.4); }
.bg-surface-elevated\/30 { background-color: rgba(22, 30, 49, 0.3); }
.bg-surface-elevated\/20 { background-color: rgba(22, 30, 49, 0.2); }

.bg-emerald-400 { background-color: var(--emerald-400); }
.bg-emerald-500 { background-color: var(--emerald-500); }
.bg-emerald-500\/5 { background-color: rgba(16, 185, 129, 0.05); }
.bg-emerald-500\/10 { background-color: rgba(16, 185, 129, 0.1); }
.bg-emerald-500\/20 { background-color: rgba(16, 185, 129, 0.2); }
.bg-cyan-400 { background-color: var(--cyan-400); }
.bg-cyan-500 { background-color: var(--cyan-500); }
.bg-cyan-500\/10 { background-color: rgba(6, 182, 212, 0.1); }
.bg-amber-400 { background-color: var(--amber-400); }
.bg-rose-500\/80 { background-color: rgba(244, 63, 94, 0.8); }
.bg-amber-500\/80 { background-color: rgba(245, 158, 11, 0.8); }
.bg-emerald-500\/80 { background-color: rgba(16, 185, 129, 0.8); }

/* Borders & Rounded */
.border { border-width: 1px; border-style: solid; }
.border-b { border-bottom-width: 1px; border-bottom-style: solid; }
.border-t { border-top-width: 1px; border-top-style: solid; }
.border-l { border-left-width: 1px; border-left-style: solid; }

.border-border-subtle { border-color: var(--border-subtle); }
.border-border-card { border-color: var(--border-card); }
.border-border-highlight { border-color: var(--border-highlight); }
.border-emerald-500\/20 { border-color: rgba(16, 185, 129, 0.2); }
.border-emerald-500\/25 { border-color: rgba(16, 185, 129, 0.25); }
.border-emerald-500\/30 { border-color: rgba(16, 185, 129, 0.3); }
.border-emerald-500\/40 { border-color: rgba(16, 185, 129, 0.4); }
.border-cyan-500\/20 { border-color: rgba(6, 182, 212, 0.2); }
.border-cyan-500\/30 { border-color: rgba(6, 182, 212, 0.3); }
.border-cyan-500\/40 { border-color: rgba(6, 182, 212, 0.4); }

.divide-y > * + * { border-top: 1px solid var(--border-subtle); }

.rounded { border-radius: 0.25rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }
.rounded-bl { border-bottom-left-radius: 0.25rem; }

/* Shadows & Blurs */
.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.05); }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5); }
.shadow-inner { box-shadow: inset 0 2px 4px 0 rgba(0, 0, 0, 0.2); }
.shadow-emerald-500\/10 { box-shadow: 0 0 15px rgba(16, 185, 129, 0.1); }
.shadow-emerald-500\/20 { box-shadow: 0 0 20px rgba(16, 185, 129, 0.2); }
.shadow-emerald-500\/30 { box-shadow: 0 0 25px rgba(16, 185, 129, 0.3); }

.backdrop-blur { backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.backdrop-blur-md { backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.backdrop-blur-xl { backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); }

/* Transitions & Hovers */
.transition-colors { transition-property: color, background-color, border-color; transition-duration: 200ms; }
.transition-all { transition-property: all; transition-duration: 200ms; }
.transition-transform { transition-property: transform; transition-duration: 200ms; }
.duration-200 { transition-duration: 200ms; }
.duration-300 { transition-duration: 300ms; }

.hover\:text-white:hover { color: #ffffff !important; }
.hover\:bg-emerald-400:hover { background-color: var(--emerald-400) !important; }
.hover\:bg-emerald-500\/20:hover { background-color: rgba(16, 185, 129, 0.2) !important; }
.hover\:bg-surface-elevated:hover { background-color: var(--surface-elevated) !important; }
.hover\:bg-surface-elevated\/30:hover { background-color: rgba(22, 30, 49, 0.3) !important; }
.hover\:border-emerald-400:hover { border-color: var(--emerald-400) !important; }
.hover\:border-emerald-500\/40:hover { border-color: rgba(16, 185, 129, 0.4) !important; }
.hover\:border-cyan-500\/40:hover { border-color: rgba(6, 182, 212, 0.4) !important; }
.group:hover .group-hover\:scale-105 { transform: scale(1.05); }

/* Animations */
@keyframes ping {
  75%, 100% {
    transform: scale(2);
    opacity: 0;
  }
}
.animate-ping {
  animation: ping 1.5s cubic-bezier(0, 0, 0.2, 1) infinite;
}

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

@keyframes bounce {
  0%, 100% {
    transform: translateY(-25%);
    animation-timing-function: cubic-bezier(0.8,0,1,1);
  }
  50% {
    transform: none;
    animation-timing-function: cubic-bezier(0,0,0.2,1);
  }
}
.animate-bounce {
  animation: bounce 1.8s infinite;
}

.delay-75 { animation-delay: 75ms; }
.delay-100 { animation-delay: 100ms; }
.delay-150 { animation-delay: 150ms; }

/* Responsive Breakpoints */
@media (min-width: 640px) {
  .sm\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
  .sm\:p-6 { padding: 1.5rem; }
  .sm\:p-8 { padding: 2rem; }
  .sm\:p-10 { padding: 2.5rem; }
  .sm\:flex-row { flex-direction: row; }
  .sm\:inline-flex { display: inline-flex !important; }
  .sm\:block { display: block !important; }
  .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\:text-base { font-size: 1rem; line-height: 1.5rem; }
  .sm\:text-lg { font-size: 1.125rem; 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; }
}

@media (min-width: 768px) {
  .md\:flex { display: flex !important; }
  .md\:hidden { display: none !important; }
  .md\:flex-row { flex-direction: row; }
  .md\:items-center { align-items: center; }
  .md\:items-end { align-items: flex-end; }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .lg\:px-8 { padding-left: 2rem; padding-right: 2rem; }
  .lg\:pt-24 { padding-top: 6rem; }
  .lg\:pb-32 { padding-bottom: 8rem; }
  .lg\:py-28 { padding-top: 7rem; padding-bottom: 7rem; }
  .lg\:py-32 { padding-top: 8rem; padding-bottom: 8rem; }
  .lg\:grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .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\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .lg\:col-span-7 { grid-column: span 7 / span 7; }
  .lg\:col-span-5 { grid-column: span 5 / span 5; }
  .lg\:gap-8 { gap: 2rem; }
  .lg\:gap-14 { gap: 3.5rem; }
  .lg\:text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
  .lg\:text-5xl { font-size: 3rem; line-height: 1.15; }
}