@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700&display=swap');

:root {
    --cor-destaque: #339bcc;
    --cor-gradiente-preto: linear-gradient(113deg, #000 0%, #1E2021 44.96%, #1E2022 100%);
    --cor-clara: #fff;
    --cor-fundo-card: #1E2022;
    --sombra: 0px 4px 20px rgba(0, 0, 0, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Montserrat, sans-serif;
}

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

.container {
    background: var(--cor-fundo-card);
    padding: 3rem 2rem;
    border-radius: 1rem;
    box-shadow: var(--sombra);
    width: 100%;
    max-width: 60rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

h1 {
    color: var(--cor-destaque);
    text-align: center;
    font-size: 3rem;
    font-weight: 700;
    text-transform: uppercase;
}

#entrada-de-texto {
    width: 100%;
    height: 12rem;
    padding: 1.5rem;
    border-radius: 0.75rem;
    border: none;
    font-size: 1.5rem;
    resize: vertical;
    background: #fff;
    color: #000;
}

#entrada-de-texto::placeholder {
    color: #828282;
}

#botao-palavrachave {
    padding: 1rem 2.5rem;
    border-radius: 0.5rem;
    border: none;
    background: var(--cor-destaque);
    color: #000;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}

#botao-palavrachave:hover {
    background: #18465c;
}

#resultado-palavrachave {
    width: 100%;
    background: #fff;
    color: #000;
    border-radius: 0.75rem;
    padding: 1.5rem;
    font-size: 1.3rem;
    max-height: 30vh;
    overflow-y: auto;
    box-shadow: var(--sombra);
}

#resultado-palavrachave ul {
    padding-left: 1.5rem;
}

footer {
    margin-top: 3rem;
    text-align: center;
    padding: 1.5rem;
    font-size: 1rem;
    color: #aaa;
}

footer p {
    margin: 0;
}