:root {
  --color-bg: #1a1a2e;
  --color-form-bg: #16213e;
  --color-text: #e94560;
  --color-text-light: #ffffff;
  --color-accent: #e94560; /* neon pink/red */
  --color-border: #0f3460;
}

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

body {
  background-color: var(--color-bg);
  color: var(--color-text-light);
  font-family: 'Open Sans', sans-serif;
  padding: 40px 20px;
}

/* center the form on the page */
.container {
  max-width: 600px;
  margin: 0 auto;
  background-color: var(--color-form-bg);
  padding: 40px;
  border-radius: 10px;
  border: 4px solid var(--color-border);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.form-header {
  text-align: center;
  margin-bottom: 30px;
}

.form-header h1 {
  font-family: 'Press Start 2P', cursive; /* retro arcade font */
  font-size: 1.5rem;
  color: var(--color-accent);
  line-height: 1.5;
  margin-bottom: 10px;
}

/* --- FIELDSETS (The sections of the form) --- */
fieldset {
  border: 2px solid var(--color-border);
  border-radius: 6px;
  padding: 20px;
  margin-bottom: 25px;
}

/* the title attached to the top line of the fieldset */
legend {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.7rem;
  color: var(--color-accent);
  padding: 0 10px;
}

/* --- STANDARD INPUTS (Text, Email, Select, Text area) --- */
.form-group {
  display: flex;
  flex-direction: column; /* stacks label on top of input */
  margin-bottom: 15px;
}

.form-group label {
  font-weight: 600;
  margin-bottom: 5px;
  font-size: 0.9rem;
}

/* styling all the typing boxes at once */
input[type="text"],
input[type="email"],
select,
textarea {
  width: 100%;
  padding: 12px;
  background-color: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: 4px;
  color: var(--color-text-light);
  font-family: inherit;
  transition: border-color 0.3s ease;
}

/* THIS IS IMPORTANT: changes border colour when user clicks inside the box */
input[type="text"]:focus,
input[type="email"]:focus,
select:focus,
textarea:focus {
  outline: none; 
  border-color: var(--color-accent); /* neon pink */
}

/* --- CHECKBOXES & RADIOS --- */
.radio-group,
.checkbox-group {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
  cursor: pointer;
}

.radio-group input,
.checkbox-group input {
  width: 18px;
  height: 18px;
  margin-right: 10px;
  cursor: pointer;
  
  /* changes the checkmark colour */
  accent-color: var(--color-accent);
}

.radio-group label,
.checkbox-group label {
  cursor: pointer; /* makes the text clickable too */
  font-size: 0.95rem;
}

/* --- THE SUBMIT BUTTON --- */
.submit-btn {
  width: 100%;
  padding: 15px;
  background-color: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  font-family: 'Press Start 2P', cursive;
  font-size: 0.8rem;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease;
  margin-top: 10px;
}

/* makes the button press down slightly when hovered */
.submit-btn:hover {
  background-color: #ff5e78;
  transform: translateY(2px);
}