/* ============================================
   P&G Accuracy - Modern CSS Stylesheet
   ============================================ */

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  color: #1f2937;
  background-color: #ffffff;
  overflow-x: hidden;
}

/* Selection Styles */
::selection {
  background-color: #0ea5e9;
  color: #ffffff;
}

::-moz-selection {
  background-color: #0ea5e9;
  color: #ffffff;
}

/* Smooth Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
  background: #0ea5e9;
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: #0284c7;
}

/* Header Scroll Effect */
#header {
  transition: all 0.3s ease;
}

#header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(20px);
}

/* Navigation Active State */
.nav-link.active {
  color: #0ea5e9 !important;
  position: relative;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: linear-gradient(to right, #0ea5e9, #f97316);
  border-radius: 2px;
}

/* Button Styles */
.btn-primary {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
  color: white;
  padding: 12px 32px;
  border-radius: 12px;
  font-weight: 700;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
  box-shadow: 0 10px 25px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(14, 165, 233, 0.4);
}

.btn-secondary {
  background: white;
  color: #0ea5e9;
  padding: 12px 32px;
  border-radius: 12px;
  font-weight: 700;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 2px solid #0ea5e9;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background: #f0f9ff;
  transform: translateY(-2px);
}

/* Card Hover Effects */
.service-card {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.service-card::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 0.6s;
}

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

.service-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, #0ea5e9 0%, #f97316 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* Animated Underline */
.animated-underline {
  position: relative;
  display: inline-block;
}

.animated-underline::after {
  content: '';
  position: absolute;
  width: 0;
  height: 3px;
  bottom: -4px;
  left: 0;
  background: linear-gradient(to right, #0ea5e9, #f97316);
  transition: width 0.3s ease;
  border-radius: 2px;
}

.animated-underline:hover::after {
  width: 100%;
}

/* Loading Animation */
@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

.shimmer {
  animation: shimmer 2s infinite linear;
  background: linear-gradient(to right, #f0f9ff 0%, #e0f2fe 20%, #f0f9ff 40%, #f0f9ff 100%);
  background-size: 1000px 100%;
}

/* Pulse Animation */
@keyframes pulse-ring {
  0% {
    transform: scale(0.9);
    opacity: 1;
  }
  100% {
    transform: scale(1.3);
    opacity: 0;
  }
}

.pulse-ring {
  animation: pulse-ring 1.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Floating Animation */
@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

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

/* Fade In Up Animation */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* Scale In Animation */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.scale-in {
  animation: scaleIn 0.5s ease-out;
}

/* Slide In from Left */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

/* Slide In from Right */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

/* Reveal on Scroll */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Glass Morphism */
.glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Gradient Backgrounds */
.bg-gradient-primary {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
}

.bg-gradient-accent {
  background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
}

.bg-gradient-mixed {
  background: linear-gradient(135deg, #0ea5e9 0%, #f97316 100%);
}

/* Box Shadows */
.shadow-soft {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.shadow-medium {
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.shadow-strong {
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.shadow-colored {
  box-shadow: 0 10px 30px rgba(14, 165, 233, 0.2);
}

/* Icon Styles */
.icon-wrapper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.icon-wrapper:hover {
  transform: scale(1.1) rotate(5deg);
}

/* Typography */
.text-display {
  font-family: 'Poppins', 'Inter', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.text-balance {
  text-wrap: balance;
}

/* Container Max Widths */
.container-narrow {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.container-wide {
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
}

/* Responsive Images */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Section Spacing */
.section-padding {
  padding-top: 5rem;
  padding-bottom: 5rem;
}

@media (min-width: 1024px) {
  .section-padding {
    padding-top: 7rem;
    padding-bottom: 7rem;
  }
}

/* Grid Auto Fit */
.grid-auto-fit {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* Backdrop Blur */
.backdrop-blur-sm {
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.backdrop-blur-md {
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.backdrop-blur-lg {
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

/* Focus Visible Styles */
:focus-visible {
  outline: 2px solid #0ea5e9;
  outline-offset: 2px;
  border-radius: 4px;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #0ea5e9;
  color: white;
  padding: 8px 16px;
  text-decoration: none;
  border-radius: 0 0 8px 0;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* Print Styles */
@media print {
  header, footer, .no-print {
    display: none !important;
  }
  
  body {
    color: #000;
    background: #fff;
  }
  
  a {
    text-decoration: underline;
  }
}

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

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
  /* Uncomment if you want to support dark mode */
  /*
  body {
    background-color: #0f172a;
    color: #f1f5f9;
  }
  */
}

/* Custom Utilities */
.text-shadow {
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.border-gradient {
  border: 2px solid transparent;
  background-clip: padding-box;
  position: relative;
}

.border-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 2px;
  background: linear-gradient(135deg, #0ea5e9, #f97316);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

/* Spinner Loader */
.spinner {
  border: 3px solid rgba(14, 165, 233, 0.2);
  border-top: 3px solid #0ea5e9;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}

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

/* Progress Bar */
.progress-bar {
  width: 100%;
  height: 4px;
  background-color: #e5e7eb;
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(to right, #0ea5e9, #f97316);
  border-radius: 2px;
  transition: width 0.3s ease;
}

/* Tooltip */
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip .tooltip-text {
  visibility: hidden;
  width: 120px;
  background-color: #1f2937;
  color: #fff;
  text-align: center;
  border-radius: 6px;
  padding: 5px;
  position: absolute;
  z-index: 1;
  bottom: 125%;
  left: 50%;
  margin-left: -60px;
  opacity: 0;
  transition: opacity 0.3s;
  font-size: 12px;
}

.tooltip:hover .tooltip-text {
  visibility: visible;
  opacity: 1;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
}

.badge-primary {
  background-color: #dbeafe;
  color: #1e40af;
}

.badge-success {
  background-color: #d1fae5;
  color: #065f46;
}

.badge-warning {
  background-color: #fef3c7;
  color: #92400e;
}

.badge-danger {
  background-color: #fee2e2;
  color: #991b1b;
}

/* Alert Box */
.alert {
  padding: 16px;
  border-radius: 12px;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.alert-info {
  background-color: #dbeafe;
  color: #1e40af;
  border-left: 4px solid #3b82f6;
}

.alert-success {
  background-color: #d1fae5;
  color: #065f46;
  border-left: 4px solid #10b981;
}

.alert-warning {
  background-color: #fef3c7;
  color: #92400e;
  border-left: 4px solid #f59e0b;
}

.alert-error {
  background-color: #fee2e2;
  color: #991b1b;
  border-left: 4px solid #ef4444;
}

/* Mobile Responsive Adjustments */
@media (max-width: 768px) {
  .section-padding {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }
  
  .text-display {
    font-size: 2rem;
  }
}

/* Accessibility Improvements */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .btn-primary,
  .btn-secondary {
    border: 2px solid currentColor;
  }
}