/* Custom CSS for Okwute Holdings, LLC Website */

/* CSS Variables for consistent theming */
:root {
  /* Primary Colors */
  --primary-blue: #1e3a8a;
  --primary-blue-light: #3b82f6;
  --primary-blue-dark: #1e40af;
  
  /* Secondary Colors */
  --gray-light: #f1f5f9;
  --gray-medium: #64748b;
  --gray-dark: #1f2937;
  
  /* Accent Colors */
  --accent-green: #10b981;
  --accent-green-dark: #059669;
  
  /* Background Colors */
  --bg-white: #ffffff;
  --bg-gray-50: #f9fafb;
  --bg-blue-50: #eff6ff;
  
  /* Text Colors */
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
}

/* Base Styles */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-white);
  margin: 0;
  padding: 0;
}

/* Typography Enhancements */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

h1 {
  font-size: 2.5rem;
  font-weight: 800;
}

h2 {
  font-size: 2rem;
  font-weight: 700;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
}

/* Custom Animations */
@keyframes blob {
  0% {
    transform: translate(0px, 0px) scale(1);
  }
  33% {
    transform: translate(30px, -50px) scale(1.1);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.9);
  }
  100% {
    transform: translate(0px, 0px) scale(1);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-blob {
  animation: blob 7s infinite;
}

.animation-delay-2000 {
  animation-delay: 2s;
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

.slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

.slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

/* Navigation Enhancements */
.nav-link {
  position: relative;
  transition: all var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 50%;
  background-color: var(--primary-blue-light);
  transition: all var(--transition-fast);
  transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Mobile Menu Enhancements */
.mobile-menu {
  transition: all var(--transition-normal);
  transform: translateY(-10px);
  opacity: 0;
}

.mobile-menu.show {
  transform: translateY(0);
  opacity: 1;
}

/* Button Enhancements */
.cta-button {
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.cta-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-slow);
}

.cta-button:hover::before {
  left: 100%;
}

/* Service Card Enhancements */
.service-card {
  transition: all var(--transition-normal);
  border: 1px solid transparent;
}

.service-card:hover {
  border-color: var(--primary-blue-light);
  box-shadow: var(--shadow-2xl);
}

.service-item {
  padding: var(--spacing-md);
  border-left: 3px solid var(--bg-gray-50);
  transition: all var(--transition-fast);
}

.service-item:hover {
  border-left-color: var(--primary-blue-light);
  background-color: var(--bg-blue-50);
  transform: translateX(4px);
}

/* Reason Item Enhancements */
.reason-item {
  transition: all var(--transition-fast);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
}

.reason-item:hover {
  background-color: rgba(255, 255, 255, 0.8);
  transform: translateX(8px);
}

/* Form Enhancements */
#consultation-form {
  transition: all var(--transition-normal);
}

#consultation-form:hover {
  box-shadow: var(--shadow-2xl);
}

#consultation-form input:focus,
#consultation-form select:focus,
#consultation-form textarea:focus {
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  border-color: var(--primary-blue-light);
}

#consultation-form button[type="submit"] {
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

#consultation-form button[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

#consultation-form button[type="submit"]:active {
  transform: translateY(0);
}

/* Form Message Styles */
.form-success {
  color: var(--accent-green);
  background-color: #d1fae5;
  border: 1px solid var(--accent-green);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
}

.form-error {
  color: #dc2626;
  background-color: #fee2e2;
  border: 1px solid #dc2626;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
}

/* Image Optimizations */
img {
  max-width: 100%;
  height: auto;
  transition: all var(--transition-normal);
}

.service-card img:hover {
  transform: scale(1.05);
}

/* Scroll Animations */
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.scroll-animate.animate {
  opacity: 1;
  transform: translateY(0);
}

/* Loading States */
.loading {
  position: relative;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid #f3f3f3;
  border-top: 2px solid var(--primary-blue-light);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Responsive Design Enhancements */

/* Mobile First - Base styles are for mobile */
@media (max-width: 767px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  h3 {
    font-size: 1.25rem;
  }
  
  .container {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
  }
  
  /* Mobile Navigation */
  .mobile-menu-button {
    display: block;
  }
  
  /* Mobile Service Cards */
  .service-card {
    margin-bottom: var(--spacing-xl);
  }
  
  /* Mobile Hero Section */
  #hero .grid {
    gap: var(--spacing-xl);
  }
  
  /* Mobile Form */
  #consultation-form {
    margin-top: var(--spacing-xl);
  }
}

/* Tablet Styles */
@media (min-width: 768px) and (max-width: 1023px) {
  h1 {
    font-size: 2.25rem;
  }
  
  h2 {
    font-size: 1.875rem;
  }
  
  /* Tablet Service Grid */
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
  }
}

/* Desktop Styles */
@media (min-width: 1024px) {
  h1 {
    font-size: 3rem;
  }
  
  h2 {
    font-size: 2.25rem;
  }
  
  /* Desktop Service Grid */
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
  }
  
  /* Desktop Hero Section */
  #hero .grid {
    align-items: center;
  }
  
  /* Desktop Navigation */
  .mobile-menu-button {
    display: none;
  }
}

/* Large Desktop Styles */
@media (min-width: 1280px) {
  .container {
    max-width: 1280px;
  }
  
  /* Large Desktop Typography */
  h1 {
    font-size: 3.5rem;
  }
  
  h2 {
    font-size: 2.5rem;
  }
}

/* High DPI Display Optimizations */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  /* Optimize for retina displays */
  img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* Print Styles */
@media print {
  * {
    background: transparent !important;
    color: black !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }
  
  a, a:visited {
    text-decoration: underline;
  }
  
  .no-print {
    display: none !important;
  }
  
  header, footer, nav {
    display: none !important;
  }
}

/* Accessibility Enhancements */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Focus Styles for Accessibility */
*:focus {
  outline: 2px solid var(--primary-blue-light);
  outline-offset: 2px;
}

button:focus,
a:focus,
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--primary-blue-light);
  outline-offset: 2px;
}

/* Skip Link for Screen Readers */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary-blue);
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: var(--radius-sm);
  z-index: 1000;
}

.skip-link:focus {
  top: 6px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --text-primary: #000000;
    --text-secondary: #000000;
    --primary-blue: #0000ff;
    --accent-green: #008000;
  }
  
  .service-card,
  #consultation-form {
    border: 2px solid var(--text-primary);
  }
}

/* Dark Mode Support (Future Enhancement) */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-white: #1f2937;
    --bg-gray-50: #374151;
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --gray-light: #374151;
  }
  
  body {
    background-color: var(--bg-white);
    color: var(--text-primary);
  }
}

/* Performance Optimizations */
.will-change-transform {
  will-change: transform;
}

.will-change-opacity {
  will-change: opacity;
}

/* GPU Acceleration for Smooth Animations */
.service-card,
.cta-button,
.reason-item {
  transform: translateZ(0);
  backface-visibility: hidden;
}

/* Utility Classes */
.text-balance {
  text-wrap: balance;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-gray-50);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-medium);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-blue-light);
}

/* Selection Styles */
::selection {
  background-color: var(--primary-blue-light);
  color: white;
}

::-moz-selection {
  background-color: var(--primary-blue-light);
  color: white;
}