@import url('https://fonts.googleapis.com/css2?family=Archivo+Black&display=swap');

:root {
    --black: #000000;
    --white: #ffffff;
    --acid-green: #d4ff00;
}

body {
    background-color: var(--black);
    color: var(--white);
    font-family: 'Archivo Black', 'Impact', sans-serif;
    margin: 0;
    text-transform: uppercase;
    overflow-x: hidden;
}

/* Header Marquee */
.marquee {
    background: var(--white);
    color: var(--black);
    padding: 10px 0;
    white-space: nowrap;
    overflow: hidden;
    border-bottom: 2px solid var(--white);
}

.marquee span {
    display: inline-block;
    padding-left: 100%;
    animation: marquee 15s linear infinite;
    font-size: 1.2rem;
}

@keyframes marquee {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-100%, 0); }
}

/* Container */
.main-container {
    max-width: 600px;
    margin: 50px auto;
    padding: 20px;
    border: 2px solid var(--white);
    text-align: center;
}

h1 {
    font-size: 3rem;
    line-height: 0.9;
    margin-bottom: 40px;
}

h1 span {
    color: var(--acid-green);
}

/* Formulaire */
form {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

input {
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--white);
    color: var(--white);
    padding: 10px;
    font-family: 'Archivo Black', sans-serif;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

input:focus {
    border-bottom-color: var(--acid-green);
}

input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

/* Bouton */
.btn-submit {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
    padding: 20px;
    font-family: 'Archivo Black', sans-serif;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    margin-top: 20px;
}

.btn-submit:hover {
    background: var(--acid-green);
    color: var(--black);
    border-color: var(--acid-green);
}