:root {
  --primary: #0a58ca;
  --primary-light: #e9f0ff;
  --dark: #0b1a2e;
  --gray: #6c7a8a;
  --light-bg: #f8faff;
  --shadow-sm: 0 8px 30px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 20px 50px rgba(10, 88, 202, 0.12);
  --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --radius: 20px;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: #ffffff;
  color: var(--dark);
  line-height: 1.6;
  padding-top: 76px;
  /* navbar height */
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

.text-gradient {
  background: linear-gradient(135deg, #0a58ca 0%, #6f42c1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-light-custom {
  background-color: var(--light-bg);
}

.glass-nav {
  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  transition: var(--transition);
}

.glass-nav .navbar-brand {
  letter-spacing: -0.5px;
  color: var(--dark);
}

.glass-nav .navbar-brand i {
  font-size: 1.6rem;
}

.glass-nav .nav-link {
  font-weight: 500;
  color: var(--dark);
  padding: 0.5rem 1rem;
  border-radius: 40px;
  transition: var(--transition);
}

.glass-nav .nav-link:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.glass-nav .navbar-toggler {
  padding: 0.4rem 0.8rem;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.glass-nav .navbar-toggler:focus {
  box-shadow: none;
}

.hero-section {
  min-height: 90vh;
  padding: 4rem 0;
  position: relative;
  background: linear-gradient(180deg, #fafcff 0%, #ffffff 100%);
}

.hero-section .badge {
  font-weight: 600;
  letter-spacing: 0.3px;
}

.hero-graphic {
  position: relative;
  z-index: 2;
}

.floating-card {
  border-radius: 16px !important;
  animation: float 6s ease-in-out infinite;
  left: -10% !important;
  top: 10% !important;
  transform: translate(0, 0) !important;
  padding: 12px 20px !important;
  border: 1px solid rgba(0, 0, 0, 0.04) !important;
}

.floating-card i {
  font-size: 2rem;
}

.floating-card span {
  font-size: 1.1rem;
  margin-left: 6px;
}

@keyframes float {
  0% {
    transform: translateY(0px);
  }

  50% {
    transform: translateY(-16px);
  }

  100% {
    transform: translateY(0px);
  }
}

.service-card {
  border-radius: var(--radius) !important;
  transition: var(--transition);
  background: white;
  border: 1px solid rgba(0, 0, 0, 0.02) !important;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover) !important;
  border-color: rgba(10, 88, 202, 0.10) !important;
}

.service-card .icon-box {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: var(--primary-light);
  transition: var(--transition);
}

.service-card:hover .icon-box {
  background: var(--primary);
}

.service-card:hover .icon-box i {
  color: white !important;
}

.service-card .icon-box i {
  font-size: 2rem;
  transition: var(--transition);
}

.testimonial-card {
  border-radius: var(--radius) !important;
  transition: var(--transition);
  background: white;
  border: 1px solid rgba(0, 0, 0, 0.02) !important;
}

.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover) !important;
}

.testimonial-card img {
  object-fit: cover;
  border: 2px solid var(--primary-light);
}

#contact {
  background: linear-gradient(135deg, #0b1a2e 0%, #1a2f4e 100%);
}

#contact .text-secondary {
  color: rgba(255, 255, 255, 0.7) !important;
}

#backToTop {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 56px;
  height: 56px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 50% !important;
  box-shadow: 0 8px 25px rgba(10, 88, 202, 0.35);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.9);
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  cursor: pointer;
}

#backToTop.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

#backToTop:hover {
  background: #0b4d9e;
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 12px 35px rgba(10, 88, 202, 0.45);
}

#backToTop:active {
  transform: scale(0.95);
}

.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

@media (max-width: 991.98px) {
  .hero-section {
    min-height: auto;
    padding: 3rem 0;
  }

  .floating-card {
    display: none;
  }

  .glass-nav .nav-link {
    padding: 0.6rem 0.8rem;
  }

  #backToTop {
    width: 48px;
    height: 48px;
    font-size: 1.4rem;
    bottom: 20px;
    right: 20px;
  }
}

@media (max-width: 575.98px) {
  body {
    padding-top: 68px;
  }

  .hero-section h1 {
    font-size: 2.4rem !important;
  }

  .hero-section .display-3 {
    font-size: 2.2rem !important;
  }

  .service-card {
    padding: 1.5rem !important;
  }

  .testimonial-card {
    padding: 1.5rem !important;
  }

  #contact h2 {
    font-size: 1.8rem !important;
  }
}

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