@import url('https://fonts.googleapis.com/css2?family=Syne:wght@700;800&family=DM+Sans:wght@400;500&display=swap');

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

:root {
    --bg: #ffffff;
    --card: #f5f5f5;
    --accent: #cc0000;
    --text: #111111;
    --border: #dddddd;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.calculator {
    background: var(--card);
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 32px;
    width: 320px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

input {
    width: 100%;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: 6px;
    font-family: 'DM Sans', sans-serif;
    font-size: 1.2rem;
    padding: 12px 16px;
}

button {
    width: 100%;
    background: var(--bg);
    color: var(--text);
    border: 2px solid var(--border);
    border-radius: 6px;
    padding: 14px;
    font-family: 'DM Sans', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
}

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

#result {
    font-family: 'Syne', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    text-align: right;
}