/* singularity_tech_website_8707/frontend/css/style.css */
:root {
  --primary-color: #3b82f6;
  --primary-dark: #1e40af;
  --primary-light: #93c5fd;
  --dark-bg: #0a2463;
  --dark-bg-secondary: #1e50a2;
  --light-text: #f3f4f6;
  --blue-100: #dbeafe;
  --blue-200: #bfdbfe;
  --blue-300: #93c5fd;
  --blue-400: #60a5fa;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --blue-800: #1e40af;
  --blue-900: #1e3a8a;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans SC', sans-serif;
  color: var(--light-text);
  background: linear-gradient(135deg, var(--dark-bg), var(--dark-bg-secondary));
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  font-weight: 700;
  line-height: 1.2;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  font-weight: 500;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid white;
  color: white;
}

.btn-outline:hover {
  background-color: white;
  color: var(--dark-bg);
  transform: translateY(-2px);
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(10, 36, 99, 0.8);
  backdrop-filter: blur(10px);
  transition: background-color 0.3s ease;
}

.navbar.scrolled {
  background-color: rgba(10, 36, 99, 0.95);
}

/* Cards */
.card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 0.5rem;
  overflow: hidden;
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

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

@keyframes slideInUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes float {
  0% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
  100% { transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 1s ease forwards;
}

.animate-slide-up {
  animation: slideInUp 0.6s ease forwards;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

/* Hero section */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--dark-bg), var(--dark-bg-secondary));
  overflow: hidden;
}

/* Form styles */
.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0.5rem;
  color: white;
  transition: all 0.3s ease;
}

.form-input:focus {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: var(--primary-color);
  outline: none;
}

.form-input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

/* Particle animation */
.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.particle {
  position: absolute;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.2);
  animation: float-around 15s linear infinite;
}

@keyframes float-around {
  0% { transform: translate(0, 0) rotate(0deg); }
  100% { transform: translate(100px, 100px) rotate(360deg); }
}

/* Footer */
footer {
  background-color: var(--blue-900);
  color: var(--blue-200);
  padding: 3rem 0;
  border-top: 1px solid var(--blue-800);
}

/* Media Queries */
@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    width: 100%;
    position: absolute;
    top: 70px;
    left: 0;
    background-color: rgba(10, 36, 99, 0.95);
    padding: 1.25rem;
    z-index: 50;
  }
  
  .nav-menu.active {
    display: flex;
  }
  
  .burger {
    display: block;
  }
  
  .hide-mobile {
    display: none;
  }
}

@media (min-width: 769px) {
  .burger {
    display: none;
  }
  
  .hide-desktop {
    display: none;
  }
}

/* Hover animations */
.hover-scale {
  transition: transform 0.3s ease;
}

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

.hover-bright {
  transition: filter 0.3s ease;
}

.hover-bright:hover {
  filter: brightness(1.2);
}

/* Section transitions */
.section {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.section.show {
  opacity: 1;
  transform: translateY(0);
}

/* Utility classes */
.text-gradient {
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  background-image: linear-gradient(90deg, var(--blue-300), var(--primary-light));
}

.bg-glass {
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.shadow-blue {
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.2);
}

.section-divider {
  height: 3px;
  width: 60px;
  background: var(--primary-color);
  margin: 1rem auto;
}

.cursor-pointer {
  cursor: pointer;
}