:root {
    --bg: #f8f9fa;
    --text: #222;
    --accent: #0d6efd;
    --accent-hover: #0b5ed7;
    --input-bg: #fff;
    --input-border: #ccc;
    --success: #28a745;
    --error: #dc3545;
}

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

body {
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
}

/* HEADINGS */
h1 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

h2 {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    font-weight: 400;
    color: #555;
}

/* FORM */
form {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 420px;
    gap: 1rem;
}

/* INPUT FIELDS */
input {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

input:focus {
    outline: none;
    border-color: var(--accent);
}

/* BUTTON */
button {
    background: var(--accent);
    color: #fff;
    padding: 0.8rem 1.2rem;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
}

button:hover {
    background: var(--accent-hover);
}

/* NOTE */
.note {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: #666;
}

/* FOOTER */
footer {
    margin-top: 2rem;
    font-size: 0.75rem;
    color: #888;
}

@media (max-width:600px) {
    h1 {
        font-size: 2.2rem;
    }
    h2 {
        font-size: 1rem;
    }
}