/* BlitzAI Landing Page Styles */
/* Comprehensive CSS including custom styles + essential Tailwind utilities */

/* ========================================
   1. CSS VARIABLES & COLOR SYSTEM
   ======================================== */
:root {
  --snow: #F8FAFC;
  --evergreen-dark: #001F0A;
  --evergreen: #063318;
  --evergreen-light: #0A4D26;
  --evergreen-muted: #E8F5EC;
  --lime: #B9FF48;
  --lime-dim: #9FE035;
  --neutral-100: #F1F5F3;
  --neutral-200: #E2E8E4;
  --neutral-300: #CBD5CE;
  --neutral-400: #94A39A;
  --neutral-500: #657269;
  --neutral-600: #4A5550;
}

/* ========================================
   2. CSS RESET & BASE STYLES
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Karla', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  color: var(--evergreen-dark);
  background-color: var(--snow);
}

/* Selection Colors */
::selection {
  background-color: var(--lime);
  color: var(--evergreen-dark);
}

/* ========================================
   3. TYPOGRAPHY
   ======================================== */
.font-sans {
  font-family: 'Karla', sans-serif;
}

.font-display {
  font-family: 'Space Grotesk', sans-serif;
}

/* Font Sizes */
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-4xl { font-size: 2.25rem; }
.text-5xl { font-size: 3rem; }
.text-6xl { font-size: 3.75rem; }

/* Font Weights */
.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; }

/* Line Heights */
.leading-tight { line-height: 1.25; }
.leading-relaxed { line-height: 1.625; }

/* Letter Spacing */
.tracking-tight { letter-spacing: -0.025em; }
.tracking-wider { letter-spacing: 0.05em; }

/* Text Transform */
.uppercase { text-transform: uppercase; }

/* ========================================
   4. COLORS
   ======================================== */
.bg-snow { background-color: var(--snow); }
.bg-white { background-color: #ffffff; }
.bg-evergreen { background-color: var(--evergreen); }
.bg-evergreen-dark { background-color: var(--evergreen-dark); }
.bg-evergreen-light { background-color: var(--evergreen-light); }
.bg-evergreen-muted { background-color: var(--evergreen-muted); }
.bg-lime { background-color: var(--lime); }
.bg-transparent { background-color: transparent; }

.text-snow { color: var(--snow); }
.text-white { color: #ffffff; }
.text-evergreen { color: var(--evergreen); }
.text-evergreen-dark { color: var(--evergreen-dark); }
.text-lime { color: var(--lime); }
.text-neutral-100 { color: var(--neutral-100); }
.text-neutral-200 { color: var(--neutral-200); }
.text-neutral-300 { color: var(--neutral-300); }
.text-neutral-400 { color: var(--neutral-400); }
.text-neutral-500 { color: var(--neutral-500); }
.text-neutral-600 { color: var(--neutral-600); }

/* Opacity Variants */
.text-snow\/60 { color: rgba(248, 250, 252, 0.6); }
.text-snow\/70 { color: rgba(248, 250, 252, 0.7); }
.text-snow\/80 { color: rgba(248, 250, 252, 0.8); }
.text-snow\/90 { color: rgba(248, 250, 252, 0.9); }
.text-snow\/50 { color: rgba(248, 250, 252, 0.5); }

/* Background Opacity */
.bg-white\/5 { background-color: rgba(255, 255, 255, 0.05); }
.bg-white\/10 { background-color: rgba(255, 255, 255, 0.1); }
.bg-lime\/5 { background-color: rgba(185, 255, 72, 0.05); }
.bg-lime\/10 { background-color: rgba(185, 255, 72, 0.1); }
.bg-lime\/15 { background-color: rgba(185, 255, 72, 0.15); }
.bg-lime\/40 { background-color: rgba(185, 255, 72, 0.4); }
.bg-red-500\/20 { background-color: rgba(239, 68, 68, 0.2); }
.bg-evergreen\/10 { background-color: rgba(6, 51, 24, 0.1); }
.bg-evergreen\/30 { background-color: rgba(6, 51, 24, 0.3); }

/* Border Colors */
.border-neutral-100 { border-color: var(--neutral-100); }
.border-neutral-200 { border-color: var(--neutral-200); }
.border-white { border-color: #ffffff; }
.border-white\/60 { border-color: rgba(255, 255, 255, 0.6); }
.border-white\/10 { border-color: rgba(255, 255, 255, 0.1); }
.border-white\/20 { border-color: rgba(255, 255, 255, 0.2); }
.border-evergreen\/5 { border-color: rgba(6, 51, 24, 0.05); }
.border-evergreen\/10 { border-color: rgba(6, 51, 24, 0.1); }
.border-evergreen\/20 { border-color: rgba(6, 51, 24, 0.2); }
.border-lime\/30 { border-color: rgba(185, 255, 72, 0.3); }
.border-red-200 { border-color: #fecaca; }
.border-lime { border-color: var(--lime); }

/* ========================================
   5. LAYOUT - FLEXBOX
   ======================================== */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-shrink-0 { flex-shrink: 0; }

/* Justify Content */
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

/* Align Items */
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }

/* Gap */
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-2\.5 { gap: 0.625rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-5 { gap: 1.25rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.gap-10 { gap: 2.5rem; }
.gap-12 { gap: 3rem; }
.gap-16 { gap: 4rem; }
.gap-20 { gap: 5rem; }

/* ========================================
   6. LAYOUT - GRID
   ======================================== */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

/* ========================================
   7. SPACING - PADDING
   ======================================== */
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-5 { padding: 1.25rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.p-10 { padding: 2.5rem; }

.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-5 { padding-left: 1.25rem; padding-right: 1.25rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.px-10 { padding-left: 2.5rem; padding-right: 2.5rem; }

.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-2\.5 { padding-top: 0.625rem; padding-bottom: 0.625rem; }
.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-5 { padding-top: 1.25rem; padding-bottom: 1.25rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }
.py-24 { padding-top: 6rem; padding-bottom: 6rem; }
.py-32 { padding-top: 8rem; padding-bottom: 8rem; }

.pt-32 { padding-top: 8rem; }
.pb-24 { padding-bottom: 6rem; }
.pb-32 { padding-bottom: 8rem; }
.pl-5 { padding-left: 1.25rem; }

/* ========================================
   8. SPACING - MARGIN
   ======================================== */
.m-auto { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.ml-1 { margin-left: 0.25rem; }
.ml-2 { margin-left: 0.5rem; }
.ml-auto { margin-left: auto; }
.mr-2 { margin-right: 0.5rem; }
.mt-0\.5 { margin-top: 0.125rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-10 { margin-top: 2.5rem; }
.mt-12 { margin-top: 3rem; }
.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-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }
.mb-20 { margin-bottom: 5rem; }

/* Negative Margins */
.-mt-4 { margin-top: -1rem; }
.-space-x-2 > * + * { margin-left: -0.5rem; }

/* ========================================
   9. SIZING
   ======================================== */
.w-1 { width: 0.25rem; }
.w-2 { width: 0.5rem; }
.w-2\.5 { width: 0.625rem; }
.w-4 { width: 1rem; }
.w-5 { width: 1.25rem; }
.w-7 { width: 1.75rem; }
.w-8 { width: 2rem; }
.w-9 { width: 2.25rem; }
.w-10 { width: 2.5rem; }
.w-11 { width: 2.75rem; }
.w-12 { width: 3rem; }
.w-14 { width: 3.5rem; }
.w-16 { width: 4rem; }
.w-24 { width: 6rem; }
.w-48 { width: 12rem; }
.w-56 { width: 14rem; }
.w-72 { width: 18rem; }
.w-full { width: 100%; }
.w-auto { width: auto; }

.h-2 { height: 0.5rem; }
.h-2\.5 { height: 0.625rem; }
.h-3 { height: 0.75rem; }
.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-10 { height: 2.5rem; }
.h-11 { height: 2.75rem; }
.h-12 { height: 3rem; }
.h-14 { height: 3.5rem; }
.h-16 { height: 4rem; }
.h-20 { height: 5rem; }
.h-24 { height: 6rem; }
.h-64 { height: 16rem; }
.h-full { height: 100%; }
.h-auto { height: auto; }

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

.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-7xl { max-width: 80rem; }

/* ========================================
   10. POSITIONING
   ======================================== */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.static { position: static; }

.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-0 { top: 0; }
.top-8 { top: 2rem; }
.top-24 { top: 6rem; }
.top-32 { top: 8rem; }
.top-56 { top: 14rem; }
.top-1\/2 { top: 50%; }
.right-0 { right: 0; }
.right-8 { right: 8; }
.right-16 { right: 4rem; }
.right-32 { right: 8rem; }
.right-6 { right: 1.5rem; }
.bottom-0 { bottom: 0; }
.bottom-1 { bottom: 0.25rem; }
.bottom-4 { bottom: 1rem; }
.bottom-6 { bottom: 1.5rem; }
.bottom-32 { bottom: 8rem; }
.left-0 { left: 0; }
.left-1\/2 { left: 50%; }
.left-6 { left: 1.5rem; }
.-left-4 { left: -1rem; }
.-right-4 { right: -1rem; }
.-bottom-4 { bottom: -1rem; }
.-left-5px { left: -5px; }
.-left-100\% { left: -100%; }
.-z-10 { z-index: -10; }

.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-50 { z-index: 50; }

/* ========================================
   11. BORDERS
   ======================================== */
.border { border-width: 1px; }
.border-2 { border-width: 2px; }
.border-b { border-bottom-width: 1px; }
.border-l-2 { border-left-width: 2px; }
.border-t { border-top-width: 1px; }
.border-y { border-top-width: 1px; border-bottom-width: 1px; }

.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; }
.rounded-r-2xl { border-top-right-radius: 1rem; border-bottom-right-radius: 1rem; }
.rounded-bl-2xl { border-bottom-left-radius: 1rem; }

/* ========================================
   12. EFFECTS - SHADOWS
   ======================================== */
.shadow-sm { box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05); }
.shadow-md { box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1); }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25); }

.shadow-card { box-shadow: 0 4px 24px rgba(0, 31, 10, 0.06); }
.shadow-card-hover { box-shadow: 0 12px 40px rgba(0, 31, 10, 0.12); }
.shadow-glass-lg { box-shadow: 0 16px 48px rgba(0, 31, 10, 0.12); }
.shadow-glow { box-shadow: 0 0 40px rgba(185, 255, 72, 0.25); }
.shadow-glow-strong { box-shadow: 0 0 60px rgba(185, 255, 72, 0.4); }
.shadow-lime-glow { box-shadow: 0 0 8px rgba(185, 255, 72, 0.6); }

/* ========================================
   13. EFFECTS - OPACITY & VISIBILITY
   ======================================== */
.opacity-0 { opacity: 0; }
.opacity-0-start { opacity: 0; }
.opacity-30 { opacity: 0.3; }
.opacity-40 { opacity: 0.4; }
.opacity-50 { opacity: 0.5; }
.opacity-60 { opacity: 0.6; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

.hidden { display: none; }
.block { display: block; }
.inline { display: inline; }
.inline-block { display: inline-block; }

/* ========================================
   14. TRANSITIONS & TRANSFORMS
   ======================================== */
.transition-all { transition-property: all; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); }
.transition-colors { transition-property: color, background-color, border-color; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); }
.transition-transform { transition-property: transform; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); }
.transition-opacity { transition-property: opacity; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); }

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

.ease-out { transition-timing-function: cubic-bezier(0, 0, 0.2, 1); }
.ease-in-out { transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); }

/* Transforms */
.transform { transform: translateZ(0); }
.-translate-x-1\/2 { transform: translateX(-50%); }
.-translate-y-1\/2 { transform: translateY(-50%); }
.translate-x-1\/4 { transform: translateX(25%); }
.-translate-y-4 { transform: translateY(-1rem); }
.rotate-1 { transform: rotate(1deg); }
.-rotate-90 { transform: rotate(-90deg); }
.scale-x-0 { transform: scaleX(0); }

/* Transform Origin */
.origin-left { transform-origin: left; }

/* ========================================
   15. OVERFLOW
   ======================================== */
.overflow-hidden { overflow: hidden; }
.overflow-x-hidden { overflow-x: hidden; }

/* ========================================
   16. TEXT ALIGNMENT
   ======================================== */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* ========================================
   17. POINTER EVENTS
   ======================================== */
.pointer-events-none { pointer-events: none; }

/* ========================================
   18. CUSTOM COMPONENT STYLES
   ======================================== */

/* Glass Effects */
.glass {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.glass-dark {
  background: rgba(0, 31, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* Text Gradient */
.text-gradient {
  background: linear-gradient(135deg, #001F0A 0%, #063318 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

/* Grid Background Patterns */
.bg-grid-pattern {
  background-image:
    linear-gradient(to right, rgba(6,51,24,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(6,51,24,0.04) 1px, transparent 1px);
}

.bg-grid-pattern-dark {
  background-image:
    linear-gradient(to right, rgba(185,255,72,0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(185,255,72,0.03) 1px, transparent 1px);
}

.grid-bg {
  background-size: 48px 48px;
  -webkit-mask-image: linear-gradient(to bottom, transparent, black 15%, black 85%, transparent);
  mask-image: linear-gradient(to bottom, transparent, black 15%, black 85%, transparent);
}

/* Hero Glow Effects */
.hero-glow {
  background: radial-gradient(ellipse 60% 50% at 50% 40%, rgba(185, 255, 72, 0.12) 0%, transparent 70%);
}

.hero-glow-dark {
  background: radial-gradient(ellipse 80% 60% at 50% 50%, rgba(185, 255, 72, 0.08) 0%, transparent 60%);
}

/* Card Shine Effect */
.card-shine {
  position: relative;
  overflow: hidden;
}

.card-shine::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.5s ease;
}

.card-shine:hover::before {
  left: 100%;
}

/* ========================================
   19. ANIMATIONS
   ======================================== */
@keyframes fadeUp {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(1deg);
  }
}

@keyframes floatDelayed {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-15px) rotate(-0.5deg);
  }
}

@keyframes floatSlow {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes ping {
  75%, 100% {
    transform: scale(2);
    opacity: 0;
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.animate-fade-up {
  animation: fadeUp 0.6s ease-out forwards;
}

.animate-float {
  animation: float 6s ease-in-out infinite;
}

.animate-float-delayed {
  animation: floatDelayed 6s ease-in-out 2s infinite;
}

.animate-float-slow {
  animation: floatSlow 8s ease-in-out infinite;
}

.animate-ping {
  animation: ping 1s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-spin {
  animation: spin 1s linear infinite;
}

/* Animation Delays */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }
.animation-delay-500 { animation-delay: 0.5s; }

/* ========================================
   20. HOVER STATES
   ======================================== */
.group:hover .group-hover\:scale-x-100 {
  transform: scaleX(1);
}

.group:hover .group-hover\:text-lime {
  color: var(--lime);
}

.group:hover .group-hover\:translate-x-1 {
  transform: translateX(0.25rem);
}

.group:hover .group-hover\:bg-evergreen {
  background-color: var(--evergreen);
}

.group:hover .group-hover\:text-snow {
  color: var(--snow);
}

.group:hover .group-hover\:-translate-y-0\.5 {
  transform: translateY(-0.125rem);
}

.group:hover .group-hover\:scale-105 {
  transform: scale(1.05);
}

.group:hover .group-hover\:scale-110 {
  transform: scale(1.1);
}

.group:hover .group-hover\:shadow-glow {
  box-shadow: 0 0 40px rgba(185, 255, 72, 0.25);
}

.hover\:text-evergreen:hover {
  color: var(--evergreen);
}

.hover\:text-lime:hover {
  color: var(--lime);
}

.hover\:shadow-lg:hover {
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

.hover\:shadow-glow-strong:hover {
  box-shadow: 0 0 60px rgba(185, 255, 72, 0.4);
}

.hover\:-translate-y-1:hover {
  transform: translateY(-0.25rem);
}

.hover\:scale-105:hover {
  transform: scale(1.05);
}

.hover\:bg-evergreen-muted:hover {
  background-color: var(--evergreen-muted);
}

.hover\:bg-evergreen-dark:hover {
  background-color: var(--evergreen-dark);
}

.hover\:border-evergreen\/20:hover {
  border-color: rgba(6, 51, 24, 0.2);
}

.hover\:border-lime\/30:hover {
  border-color: rgba(185, 255, 72, 0.3);
}

.hover\:bg-white\/10:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.hover\:bg-white\/\[0\.06\]:hover {
  background-color: rgba(255, 255, 255, 0.06);
}

.hover\:rotate-0:hover {
  transform: rotate(0deg);
}

.hover\:shadow-card-hover:hover {
  box-shadow: 0 12px 40px rgba(0, 31, 10, 0.12);
}

.hover\:grayscale-0:hover {
  filter: grayscale(0);
}

.grayscale {
  filter: grayscale(100%);
}

/* ========================================
   21. RESPONSIVE DESIGN
   ======================================== */

/* Small devices (640px and up) */
@media (min-width: 640px) {
  .sm\:flex-row { flex-direction: row; }
}

/* Medium devices (768px and up) */
@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)); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .md\:gap-16 { gap: 4rem; }
  .md\:text-5xl { font-size: 3rem; }
  .md\:text-6xl { font-size: 3.75rem; }
  .md\:flex-row { flex-direction: row; }
  .md\:-translate-y-4 { transform: translateY(-1rem); }
}

/* Large devices (1024px and up) */
@media (min-width: 1024px) {
  .lg\:block { display: block; }
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lg\:gap-20 { gap: 5rem; }
  .lg\:text-5xl { font-size: 3rem; }
  .lg\:text-\[4\.25rem\] { font-size: 4.25rem; }
  .lg\:pt-48 { padding-top: 12rem; }
  .lg\:pb-36 { padding-bottom: 9rem; }
  .lg\:p-10 { padding: 2.5rem; }
  .lg\:order-1 { order: 1; }
  .lg\:order-2 { order: 2; }
}

/* Hide/Show utilities at specific breakpoints */
.hidden { display: none; }
.md\:flex { display: none; }
@media (min-width: 768px) {
  .md\:flex { display: flex; }
  .hidden { display: none; }
}

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

/* Responsive text sizes */
@media (max-width: 768px) {
  h1, .text-5xl, .lg\:text-\[4\.25rem\] {
    font-size: 2.5rem !important;
  }

  h2, .text-4xl, .md\:text-5xl {
    font-size: 2rem !important;
  }
}

/* ========================================
   22. UTILITIES
   ======================================== */
.object-contain {
  object-fit: contain;
}

.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; }

/* ========================================
   23. SCROLLBAR CUSTOMIZATION
   ======================================== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--snow);
}

::-webkit-scrollbar-thumb {
  background: var(--evergreen);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--evergreen-dark);
}