/* Modern CSS Variables */
:root {
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --success-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
  --warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
  
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --dark-glass: rgba(0, 0, 0, 0.2);
  
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.8);
  --text-muted: rgba(255, 255, 255, 0.6);
  
  --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 16px 64px rgba(0, 0, 0, 0.15);
  --shadow-strong: 0 24px 96px rgba(0, 0, 0, 0.2);
  
  --border-radius: 20px;
  --border-radius-lg: 30px;
  --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', sans-serif;
  background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #667eea 100%);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Animated Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.2) 0%, transparent 50%);
  z-index: -1;
  animation: backgroundShift 20s ease-in-out infinite;
}

@keyframes backgroundShift {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

/* Floating Elements */
.floating-elements {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.floating-element {
  position: absolute;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  animation: float 15s ease-in-out infinite;
}

.floating-element:nth-child(1) {
  width: 80px;
  height: 80px;
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.floating-element:nth-child(2) {
  width: 120px;
  height: 120px;
  top: 20%;
  right: 15%;
  animation-delay: -5s;
}

.floating-element:nth-child(3) {
  width: 60px;
  height: 60px;
  bottom: 30%;
  left: 20%;
  animation-delay: -10s;
}

.floating-element:nth-child(4) {
  width: 100px;
  height: 100px;
  bottom: 20%;
  right: 10%;
  animation-delay: -7s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  33% { transform: translateY(-30px) rotate(120deg); }
  66% { transform: translateY(15px) rotate(240deg); }
}

/* Glass Morphism Components */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
}

.glass-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-medium);
  border-color: rgba(255, 255, 255, 0.3);
}

/* Navigation */
.navbar {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 1rem 0;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}

.navbar-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 800;
  font-size: 1.8rem;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-link {
  color: var(--text-secondary) !important;
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  border-radius: 12px;
  transition: var(--transition);
  position: relative;
}

.nav-link:hover {
  color: var(--text-primary) !important;
  background: var(--glass-bg);
  transform: translateY(-2px);
}

/* Dropdown Menu */
.dropdown-menu {
  background: rgba(0, 0, 0, 0.9) !important;
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
}

.dropdown-item {
  color: var(--text-secondary) !important;
  transition: var(--transition);
}

.dropdown-item:hover {
  background: var(--glass-bg) !important;
  color: var(--text-primary) !important;
}

/* Main Container */
.main-container {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: 3rem;
  margin: 120px auto 2rem;
  max-width: 800px;
  box-shadow: var(--shadow-strong);
  position: relative;
  z-index: 2;
}

/* Page Header */
.page-header {
  text-align: center;
  margin-bottom: 3rem;
}

.page-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.page-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Form Styles */
.form-section {
  margin-bottom: 2rem;
}

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

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

.input-container {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 0.75rem 1rem;
  transition: var(--transition);
}

.input-container:focus-within {
  border-color: rgba(255, 255, 255, 0.4);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
}

.form-input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1rem;
  outline: none;
  padding: 0.5rem 0;
}

.form-input::placeholder {
  color: var(--text-muted);
}

.input-icon {
  color: var(--text-secondary);
  margin-right: 0.75rem;
  font-size: 1.1rem;
}

/* Buttons */
.btn-primary-custom {
  background: var(--accent-gradient);
  border: none;
  color: white;
  font-weight: 700;
  padding: 1rem 2rem;
  border-radius: 15px;
  font-size: 1.1rem;
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 1px;
  width: 100%;
  margin-bottom: 1rem;
}

.btn-primary-custom:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
  color: white;
}

.btn-secondary-custom {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 2px solid var(--glass-border);
  color: var(--text-primary);
  font-weight: 600;
  padding: 1rem 2rem;
  border-radius: 15px;
  font-size: 1.1rem;
  transition: var(--transition);
  width: 100%;
}

.btn-secondary-custom:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--text-primary);
  transform: translateY(-3px);
}

/* Notifications */
.notification {
  position: fixed;
  top: 100px;
  right: 20px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  padding: 1rem 1.5rem;
  color: var(--text-primary);
  box-shadow: var(--shadow-soft);
  z-index: 1000;
  display: none;
}

.notification.success {
  border-left: 4px solid #4ade80;
}

.notification.error {
  border-left: 4px solid #f87171;
}

/* Responsive Design */
@media (max-width: 768px) {
  .main-container {
    margin: 100px 1rem 2rem;
    padding: 2rem 1.5rem;
  }
  
  .floating-elements {
    display: none;
  }
  
  .page-title {
    font-size: 2rem;
    flex-direction: column;
    gap: 0.5rem;
  }
}

@media (max-width: 576px) {
  .main-container {
    margin: 90px 0.5rem 1rem;
    padding: 1.5rem 1rem;
  }
  
  .page-title {
    font-size: 1.8rem;
  }
  
  .btn-primary-custom,
  .btn-secondary-custom {
    font-size: 1rem;
    padding: 0.9rem 1.5rem;
  }
}