/* ===================================
   IT.joy - Design System & Styles
   Clean white gradients with sparkle
   =================================== */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@400;500;600;700&display=swap');

/* ===================================
   CSS Custom Properties
   =================================== */
:root {
  /* Color Palette - White & Light Spectrum */
  --color-white: #ffffff;
  --color-white-soft: #fafbfc;
  --color-gray-50: #f8f9fa;
  --color-gray-100: #f1f3f5;
  --color-gray-200: #e9ecef;
  --color-gray-300: #dee2e6;
  --color-gray-400: #ced4da;
  --color-text-primary: #2d3748;
  --color-text-secondary: #4a5568;
  --color-text-light: #718096;

  /* Subtle Blue Tints */
  --color-blue-50: #f0f4f8;
  --color-blue-100: #d9e2ec;
  --color-blue-200: #bcccdc;
  --color-blue-300: #9fb3c8;

  /* Gradients */
  --gradient-white: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
  --gradient-soft: linear-gradient(135deg, #fafbfc 0%, #f0f4f8 100%);
  --gradient-subtle: linear-gradient(180deg, #ffffff 0%, #f8f9fa 50%, #f0f4f8 100%);

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 6rem;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Shadows - Very Subtle */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.08);

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--color-text-primary);
  background: var(--gradient-subtle);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* ===================================
   Typography
   =================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text-primary);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--color-text-secondary);
}

/* ===================================
   Layout Components
   =================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-2xl) 0;
  position: relative;
}

/* ===================================
   Sparkle Effect
   =================================== */
.sparkle {
  position: relative;
  display: inline-block;
}

.sparkle::before,
.sparkle::after {
  content: '✦';
  position: absolute;
  font-size: 0.5em;
  color: var(--color-gray-300);
  opacity: 0;
  animation: sparkle 3s ease-in-out infinite;
}

.sparkle::before {
  top: -10px;
  right: -15px;
  animation-delay: 0s;
}

.sparkle::after {
  bottom: -10px;
  left: -15px;
  animation-delay: 1.5s;
}

@keyframes sparkle {

  0%,
  100% {
    opacity: 0;
    transform: scale(0.5) rotate(0deg);
  }

  50% {
    opacity: 0.6;
    transform: scale(1) rotate(90deg);
  }
}

/* Floating sparkles background */
.sparkle-bg {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.sparkle-bg span {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--color-gray-300);
  border-radius: 50%;
  opacity: 0;
  animation: float-sparkle 10s ease-in-out infinite;
}

.sparkle-bg span:nth-child(1) {
  left: 10%;
  top: 20%;
  animation-delay: 0s;
}

.sparkle-bg span:nth-child(2) {
  left: 80%;
  top: 30%;
  animation-delay: 2s;
}

.sparkle-bg span:nth-child(3) {
  left: 30%;
  top: 60%;
  animation-delay: 4s;
}

.sparkle-bg span:nth-child(4) {
  left: 70%;
  top: 70%;
  animation-delay: 6s;
}

.sparkle-bg span:nth-child(5) {
  left: 50%;
  top: 40%;
  animation-delay: 8s;
}

@keyframes float-sparkle {

  0%,
  100% {
    opacity: 0;
    transform: translateY(0) scale(0.5);
  }

  50% {
    opacity: 0.4;
    transform: translateY(-30px) scale(1);
  }
}

/* ===================================
   Hero Section
   =================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--gradient-white);
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: var(--spacing-lg);
}

.hero-logo {
  width: 200px;
  height: auto;
  margin-bottom: var(--spacing-lg);
  opacity: 0;
  animation: fadeInUp 1s ease forwards;
}

.hero h1 {
  margin-bottom: var(--spacing-md);
  opacity: 0;
  animation: fadeInUp 1s ease 0.2s forwards;
}

.hero-tagline {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  font-weight: 300;
  opacity: 0;
  animation: fadeInUp 1s ease 0.4s forwards;
}

/* ===================================
   Buttons
   =================================== */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--color-white);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-gray-200);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: var(--color-white-soft);
}

.btn-group {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  justify-content: center;
  opacity: 0;
  animation: fadeInUp 1s ease 0.6s forwards;
}

/* ===================================
   Services Section
   =================================== */
.services {
  background: var(--gradient-soft);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.service-card {
  background: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  border: 1px solid var(--color-gray-100);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gray-200), var(--color-blue-200));
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  display: block;
}

.service-card h3 {
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

.service-card p {
  line-height: 1.6;
  font-size: 1rem;
}

/* ===================================
   Expertise Section
   =================================== */
.expertise {
  background: var(--gradient-white);
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.expertise-card {
  background: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  border: 1px solid var(--color-gray-100);
  position: relative;
  overflow: hidden;
}

.expertise-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-blue-200), var(--color-gray-200));
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.expertise-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.expertise-card:hover::before {
  opacity: 1;
}

.expertise-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  display: block;
  text-align: center;
  filter: grayscale(20%);
}

.expertise-card h3 {
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
  text-align: center;
}

.expertise-card p {
  line-height: 1.7;
  font-size: 1rem;
  text-align: center;
}

/* ===================================
   About Section
   =================================== */
.about {
  background: var(--gradient-soft);
}

.about-content {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.about-content h2 {
  margin-bottom: var(--spacing-md);
}

.about-content p {
  margin-bottom: var(--spacing-md);
  font-size: 1.125rem;
  line-height: 1.8;
}

.tech-stack {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-lg);
}

.tech-badge {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.tech-badge:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-sm);
}

/* ===================================
   Contact Section
   =================================== */
.contact {
  background: var(--gradient-soft);
  text-align: center;
}

.contact h2 {
  margin-bottom: var(--spacing-md);
}

.contact p {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ===================================
   Footer
   =================================== */
footer {
  background: var(--color-white);
  padding: var(--spacing-lg) 0;
  text-align: center;
  border-top: 1px solid var(--color-gray-100);
}

footer p {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
  .hero {
    min-height: 90vh;
  }

  .hero-logo {
    width: 150px;
  }

  .section {
    padding: var(--spacing-xl) 0;
  }

  .btn-group {
    flex-direction: column;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }
}

/* ===================================
   Accessibility
   =================================== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for keyboard navigation */
a:focus,
button:focus {
  outline: 2px solid var(--color-blue-300);
  outline-offset: 2px;
}