/* ============================================
   Modern CSS - Latest Features
   ============================================ */

/* CSS Variables for Theme */
:root {
  --primary-color: #ff6b35;
  --secondary-color: #004e89;
  --accent-color: #ffa500;
  --dark-bg: #1a1a2e;
  --light-bg: #f8f9fa;
  --text-dark: #2c3e50;
  --text-light: #ffffff;
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
  --shadow-xl: 0 20px 40px rgba(0,0,0,0.2);
  --border-radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-dark);
  background: var(--light-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Modern Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
  margin-bottom: 1rem;
  color: var(--text-dark);
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

/* Modern Navigation */
.navbar-modern {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  transition: var(--transition);
}

.navbar-modern.scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid rgba(102, 126, 234, 0.1);
}

.navbar-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.2rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

.navbar-brand img {
  height: 55px;
  width: auto;
  transition: var(--transition);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.navbar-brand:hover {
  transform: translateY(-2px);
}

.navbar-brand:hover img {
  transform: scale(1.05);
  filter: drop-shadow(0 4px 8px rgba(102, 126, 234, 0.3));
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 0.5rem;
  align-items: center;
  margin: 0;
  padding: 0;
}

.nav-menu li {
  margin: 0;
}

.nav-menu li a {
  position: relative;
  font-weight: 600;
  color: var(--text-dark);
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  transition: var(--transition);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: block;
}

.nav-menu li a::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  border-radius: 50px;
  opacity: 0;
  transform: scale(0.8);
  transition: var(--transition);
  z-index: -1;
}

.nav-menu li a::after {
  content: '';
  position: absolute;
  bottom: 0.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition);
}

.nav-menu li a:hover,
.nav-menu li a.active {
  color: var(--text-light);
  transform: translateY(-2px);
}

.nav-menu li a:hover::before,
.nav-menu li a.active::before {
  opacity: 1;
  transform: scale(1);
}

.nav-menu li a.active::after {
  width: 60%;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 0.75rem;
  background: transparent;
  border: none;
  border-radius: 8px;
  transition: var(--transition);
  z-index: 1001;
}

.mobile-toggle:hover {
  background: rgba(102, 126, 234, 0.1);
}

.mobile-toggle span {
  width: 28px;
  height: 3px;
  background: var(--text-dark);
  border-radius: 3px;
  transition: var(--transition);
  display: block;
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
  background: var(--primary-color);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(-20px);
}

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
  background: var(--primary-color);
}

/* Hero Section with Modern Design */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  overflow: hidden;
  padding-top: 80px;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('../images/background/image.jpg') center/cover;
  opacity: 0.3;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--text-light);
  max-width: 800px;
  padding: 2rem;
}

.hero-content h1 {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.8s ease-out;
}

.hero-content p {
  color: var(--text-light);
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  animation: fadeInUp 1s ease-out;
}

/* Modern Carousel */
.carousel-modern {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel-slide.active {
  opacity: 1;
  z-index: 1;
}

.carousel-slide::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 0;
}

.carousel-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--text-light);
  padding: 2rem;
}

.carousel-content h2 {
  font-size: clamp(2rem, 5vw, 4rem);
  color: var(--text-light);
  margin-bottom: 1rem;
  animation: fadeInUp 0.8s ease-out;
}

.carousel-controls {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: none;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel-controls:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-50%) scale(1.1);
}

.carousel-prev {
  left: 2rem;
}

.carousel-next {
  right: 2rem;
}

.carousel-indicators-modern {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 1rem;
  z-index: 10;
}

.carousel-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  border: 2px solid rgba(255, 255, 255, 0.8);
  cursor: pointer;
  transition: var(--transition);
}

.carousel-indicator.active {
  background: var(--text-light);
  transform: scale(1.2);
}

/* Modern Card Design */
.feature-card {
  background: var(--text-light);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--text-light);
  font-size: 2rem;
  transition: var(--transition);
}

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

.feature-card h4 {
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.feature-card ul {
  list-style: none;
  padding: 0;
}

.feature-card ul li {
  padding: 0.5rem 0;
  color: var(--text-dark);
  position: relative;
  padding-left: 1.5rem;
}

.feature-card ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

/* Modern Button Styles */
.btn-modern {
  display: inline-block;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: var(--transition);
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 0.9rem;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-light);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
}

.btn-outline:hover {
  background: var(--primary-color);
  color: var(--text-light);
}

/* Section Styling */
.section {
  padding: 5rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  position: relative;
  display: inline-block;
  padding-bottom: 1rem;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

/* Grid Layouts */
.grid-modern {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Modern Form Styles */
.form-modern {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-dark);
}

.form-control {
  width: 100%;
  padding: 1rem;
  border: 2px solid #e0e0e0;
  border-radius: var(--border-radius);
  font-size: 1rem;
  transition: var(--transition);
  background: var(--text-light);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 150px;
}

/* Contact Info Cards */
.contact-info-card {
  background: var(--text-light);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: var(--transition);
  margin-bottom: 2rem;
}

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

.contact-info-card i {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.contact-info-card h4 {
  margin-bottom: 0.5rem;
}

/* Modern Footer */
.footer-modern {
  background: var(--dark-bg);
  color: var(--text-light);
  padding: 3rem 0 1rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.footer-section h3 {
  color: var(--text-light);
  margin-bottom: 1rem;
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  transition: var(--transition);
}

.footer-section a:hover {
  color: var(--primary-color);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  margin-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
}

.social-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 1rem;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  color: var(--text-light);
}

.social-link:hover {
  background: var(--primary-color);
  transform: translateY(-3px);
}

/* Scroll to Top Button */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  color: var(--text-light);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.animate-fade-in {
  animation: fadeIn 0.6s ease-out;
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

/* Additional Modern Enhancements */
.category-link:hover i {
  color: white !important;
}

/* Smooth Scroll Enhancement */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

/* Loading Animation */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

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

/* Focus States for Accessibility */
*:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  .navbar-modern,
  .scroll-top,
  .carousel-controls,
  .carousel-indicators-modern {
    display: none;
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .navbar-container {
    padding: 1rem;
  }

  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 2rem;
    gap: 0.5rem;
    transition: var(--transition);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    border-top: 1px solid rgba(102, 126, 234, 0.1);
    overflow-y: auto;
  }

  .nav-menu.active {
    left: 0;
  }

  body.menu-open {
    overflow: hidden;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-menu li a {
    width: 100%;
    text-align: center;
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 0.5rem;
  }

  .nav-menu li a::before {
    border-radius: 12px;
  }

  .nav-menu li a::after {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .navbar-container {
    padding: 1rem;
  }

  .navbar-brand img {
    height: 45px;
  }

  .carousel-controls {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }

  .carousel-prev {
    left: 1rem;
  }

  .carousel-next {
    right: 1rem;
  }

  .section {
    padding: 3rem 0;
  }

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

  .hero-content {
    padding: 1rem;
  }

  .about-grid {
    grid-template-columns: 1fr !important;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* About Page Specific Styles */
.about-hero {
  text-align: center;
  padding: 4rem 0;
}

.about-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: 1rem;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.tech-card {
  text-align: center;
  padding: 2rem;
  transition: var(--transition);
}

.tech-card:hover {
  transform: translateY(-5px);
}

.tech-card i {
  font-size: 3rem;
  margin-bottom: 1rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Mission & Vision Cards */
.mission-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Mission & Vision Grid */
.mission-vision-grid {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .mission-vision-grid {
    grid-template-columns: 1fr 1fr !important;
  }
}

/* Responsive adjustments for About page */
@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr !important;
  }
  
  .service-grid {
    grid-template-columns: 1fr;
  }
  
  .tech-card {
    padding: 1.5rem;
  }
  
  .mission-vision-grid {
    grid-template-columns: 1fr !important;
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.container-modern {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Background Overlay */
.overlay-dark {
  position: relative;
}

.overlay-dark::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 0;
}

.overlay-dark > * {
  position: relative;
  z-index: 1;
}