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

body {
    width: 100vw;
    height: 100vh;
    background: #111;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Arial, sans-serif;
    overflow: hidden;
}

.app {
    width: 100%;
    max-width: 390px;
    height: 100vh;
    background: #1c1c1c;
    padding: 25px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    color: white;
}

h1 {
    text-align: center;
    font-size: 28px;
    margin-bottom: 10px;
}

label {
    font-size: 16px;
}

input, select {
    width: 100%;
    height: 50px;
    border: none;
    border-radius: 12px;
    padding: 10px;
    font-size: 16px;
    background: #2b2b2b;
    color: white;
}

button {
    width: 100%;
    height: 55px;
    background: #d4af37;
    color: black;
    font-size: 18px;
    font-weight: bold;
    border: none;
    border-radius: 14px;
    margin-top: 10px;
}

#resultat {
    margin-top: 20px;
    text-align: center;
    font-size: 24px;
    font-weight: bold;
}