body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: url('https://images.unsplash.com/photo-1571019613454-1cb2f99b2d8b?q=80&w=2070&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D') center/cover fixed;
  position: relative;
  font-family: 'Poppins', sans-serif;
}

body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 94, 20, 0.8) 0%, rgba(0, 0, 0, 0.9) 100%);
}

.auth-container {
  width: 100%;
  max-width: 450px;
  padding: 20px;
  position: relative;
  z-index: 1;
  animation: fadeIn 0.6s ease;
}

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

.auth-box {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  padding: 50px 40px;
  border-radius: 30px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
  text-align: center;
  animation: slideUp 0.6s ease;
  border: 2px solid rgba(255, 94, 20, 0.2);
  position: relative;
  overflow: hidden;
}

.auth-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, #ff5e14, #ff9c42);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.auth-box h2 {
  margin-bottom: 30px;
  background: linear-gradient(135deg, #ff5e14, #ff9c42);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 2.2em;
  font-weight: 900;
  letter-spacing: -1px;
}

.form-group {
  margin-bottom: 25px;
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  color: #333;
  font-weight: 600;
  font-size: 0.95em;
}

.form-group input {
  width: 100%;
  padding: 15px 20px;
  border: 2px solid #e0e0e0;
  border-radius: 12px;
  font-size: 1em;
  transition: all 0.3s ease;
  background: #f8f9fa;
}

.form-group input:focus {
  outline: none;
  border-color: #ff5e14;
  background: white;
  box-shadow: 0 4px 15px rgba(255, 94, 20, 0.15);
  transform: translateY(-2px);
}

button[type="submit"] {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, #ff5e14 0%, #ff9c42 100%);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 1.1em;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  margin-top: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 8px 20px rgba(255, 94, 20, 0.3);
  position: relative;
  overflow: hidden;
}

button[type="submit"]::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.6s ease;
}

button[type="submit"]:hover::before {
  left: 100%;
}

button[type="submit"]:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(255, 94, 20, 0.4);
  background: linear-gradient(135deg, #ff9c42 0%, #ff5e14 100%);
}

button[type="submit"]:active {
  transform: translateY(-1px);
}

.auth-box p {
  margin-top: 25px;
  color: #666;
  font-size: 0.95em;
}

.auth-box p a {
  color: #ff5e14;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
}

.auth-box p a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: #ff5e14;
  transition: width 0.3s ease;
}

.auth-box p a:hover::after {
  width: 100%;
}

.auth-box p a:hover {
  color: #ff9c42;
}

@media (max-width: 768px) {
  .auth-container {
    max-width: 90%;
  }
  
  .auth-box {
    padding: 40px 30px;
  }
  
  .auth-box h2 {
    font-size: 1.8em;
  }
}
}

.auth-switch {
  margin-top: 20px;
}

.auth-switch a {
  color: var(--primary);
  font-weight: bold;
}

.btn.full {
  width: 100%;
  text-align: center;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  color: white;
  padding: 12px 30px;
  border-radius: 50px;
  display: inline-block;
  margin-top: 10px;
  border: none;
  cursor: pointer;
  transition: background 0.3s ease;
}

.btn.full:hover {
  background: linear-gradient(90deg, #e64a00, #ff8c32);
}