* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f3f4f6; /* Light gray background */
    padding: 20px;
}

.signup-container {
    background: #ffffff;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    width: 100%;
    max-width: 450px;
}

.signup-form h2 {
    font-size: 1.75rem;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.signup-form p {
    color: #6b7280;
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.input-group {
    margin-bottom: 1.25rem;
    text-align: left;
}

.input-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
}

.input-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    font-size: 1rem;
    outline: none;
    transition: all 0.2s ease;
}

.input-group input:focus {
    border-color: #4f46e5;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.signup-btn {
    width: 100%;
    padding: 0.75rem;
    background-color: #4f46e5;
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 1rem;
    transition: background 0.2s;
}

.signup-btn:hover {
    background-color: #4338ca;
}

.login-link {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.875rem;
    color: #6b7280;
}

.login-link a {
    color: #4f46e5;
    text-decoration: none;
    font-weight: 600;
}

/* Responsive adjustment for small phones */
@media (max-width: 400px) {
    .signup-container {
        padding: 1.5rem;
    }
}