/* 1. Global Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f7f6;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding-top: 2rem;
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 1rem;
}

/* 2. Form Container */
#registrationForm {
    background: #ffffff;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 450px;
}

/* 3. Label and Input Styling */
label {
    display: block;
    font-weight: 600;
    margin-bottom: 5px;
    color: #555;
}

input {
    width: 100%;
    padding: 12px;
    margin-bottom: 5px;
    border: 1.5px solid #ddd;
    border-radius: 6px;
    box-sizing: border-box; /* Important: keeps padding inside the width */
    transition: all 0.3s ease;
    font-size: 1rem;
}

/* 4. Focus State (UX Objective) */
input:focus {
    border-color: #fbc02d; /* Matching your brand yellow */
    outline: none;
    box-shadow: 0 0 8px rgba(251, 192, 45, 0.2);
    background-color: #fffefb;
}

/* 5. Error Message Styling */
.error {
    color: #e74c3c;
    font-size: 0.85rem;
    font-weight: 500;
    display: block;
    height: 1rem; /* Keeps layout stable even without error text */
    margin-bottom: 10px;
}

/* 6. Submit Button */
#submitBtn {
    width: 100%;
    background-color: #fbc02d;
    color: #1a1a1a;
    padding: 14px;
    border: none;
    border-radius: 6px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.1s ease;
    margin-top: 10px;
}

#submitBtn:hover {
    background-color: #f9a825;
}

#submitBtn:active {
    transform: scale(0.98);
}

@media (max-width: 768px) {
  #registrationForm {
    width: 90%;      /* Takes up 90% of the small screen */
    margin: 20px auto; /* 20px top/bottom, auto for left/right centering */
    padding: 1rem;   /* Slightly less padding to save space */
  }

  h1 {
    font-size: 1.5rem;
  }

  #submitBtn {
    width: 100%;
    padding: 12px;
    font-size: 1rem;
  }
}