/* Reset */
*, *:before, *:after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Body */
body {
  font-family: 'Nunito', sans-serif;
  background: #f9fafc;
  color: #384047;
  padding: 20px;
}

/* Header */
h1 {
  margin: 0 0 25px 0;
  text-align: center;
  font-size: 26px;
  font-weight: 600;
  color: #2c3e50;
}

/* Form Container */
form {
  max-width: 480px;
  margin: 0 auto;
  padding: 25px 30px;
  background: #f4f7f8;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  transition: transform 0.3s ease;
}

form:hover {
  transform: translateY(-2px);
}

/* Labels */
label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  font-size: 14px;
  color: #34495e;
}

label.light {
  font-weight: 300;
  display: inline;
}

/* Inputs & Select */
input[type="text"],
input[type="password"],
input[type="date"],
input[type="datetime"],
input[type="email"],
input[type="number"],
input[type="search"],
input[type="tel"],
input[type="time"],
input[type="url"],
textarea,
select {
  background: #e8eeef;
  border: none;
  font-size: 15px;
  padding: 12px;
  width: 100%;
  border-radius: 6px;
  color: #333;
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.05);
  margin-bottom: 18px;
  transition: border 0.2s ease, background 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
  border: 1px solid #4bc970;
  outline: none;
  background: #fff;
}

/* Radio & Checkbox */
input[type="radio"],
input[type="checkbox"] {
  margin: 0 6px 10px 0;
}

/* Button */
button {
  padding: 14px;
  color: #fff;
  background: linear-gradient(135deg, #4bc970, #3ac162);
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  border-radius: 6px;
  width: 100%;
  border: none;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: linear-gradient(135deg, #3ac162, #36b45e);
  transform: translateY(-2px);
}

/* Fieldset */
fieldset {
  margin-bottom: 20px;
  border: none;
}

legend {
  font-size: 1.2em;
  margin-bottom: 8px;
}

/* Number Badge */
.number {
  background-color: #5fcf80;
  color: #fff;
  height: 28px;
  width: 28px;
  display: inline-block;
  font-size: 0.8em;
  margin-right: 5px;
  line-height: 28px;
  text-align: center;
  border-radius: 50%;
}

/* Loading Overlay */
.loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  backdrop-filter: blur(5px);
  animation: fadeIn 0.3s ease forwards;
}

.spinner {
  width: 60px;
  height: 60px;
  border: 6px solid #f3f3f3;
  border-top: 6px solid #4bc970;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 15px;
}

.loading p {
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.5px;
  animation: bounceText 1.2s infinite;
}

/* Animations */
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes fadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

@keyframes bounceText {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

/* Responsive */
@media screen and (max-width: 600px) {
  form {
    padding: 20px;
  }
  h1 {
    font-size: 22px;
  }
  .spinner {
    width: 50px;
    height: 50px;
    border-width: 5px;
  }
  .loading p {
    font-size: 16px;
  }
}