* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
body {
background-color: #0b0b0b;
color: #ffffff;
min-height: 100vh;
display: flex;
justify-content: center;
align-items: center;
overflow: hidden;
position: relative;
}

/*Ondas vermelhas no fundo */

body::before, body::after {
content: "";
position: absolute;
left: 50%;
min-width: 300vw;
min-height: 300vw;
background-color: #990000;
animation: rotate 15s infinite linear;
border-radius: 45%;
opacity: 0.15;
z-index: -1;
}
body::after{
    bottom:15vh;
}
body::after {
    bottom: 12vh;
    background-color: #cc0000;
    animation: delay 2s;
    border: radius 47%;
    opacity: 0.1;
}
@keyframes rotate {
    0% {trasform: translate(-50%,0) rotate(0deg); }
    100% {trasform: translate(-50, 0) rotate(360deg);}
}

/* Container do Quiz */
.quiz-container {
    background: rgba(20, 20, 20, 0.85);
    border: 2px solid #cc0000;
    border-radius: 12px;
    padding: 30px;
    width: 90%;
    max-width: 550px;
    box-shadow: 0 8px 32px 0 rgba(204, 0, 0, 0.2);
    backdrop-filter: blur(8px);
    text-align: center;
}
/* Telas e utilitarios */
.screen {
    display: flex;
    flex-direction: column;
    gap:20px
}
.hide{
    display: none !important;
}

h1, h2 {
    color: #ff3333;
    font-size: 2rem;
    margin-bottom: 10px;
}

p {
    color: #ff3333;
    font-size: 2rem;
    margin-bottom: 10px;
}
.quiz-header {
    font-size:1.2rem;
    font-weight: bold;
    color: #ff3333;
    border-bottom: 1px solid #444;
    padding-bottom: 10px;
}
/* Botoes */
.btn {
    background-color: #cc0000;
    color:white;
    border: none;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: bold;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    margin-top: 10px;
}
.btn:hover {
    background-color: #ff3333;
    box-shadow: 0 0 15px #ff3333;
    transform: translateY(-2px);
}
/* Opçoes de resposta */
.options-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 20px 0;
}
.option-btn {
    background-color: #1a1a1a;
    color: #ffffff;
    border: 1px solid #444444;
    padding: 14px;
    text-align: left;
    font-size: 1rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s, background-color 0.2s;
}
.option-btn:hover {
    border-color: #ff3333;
    background-color: #261010;
}
/* Estados de Correçao (js) */
.option-btn.correct {
    background-color: #1b4322 !important;
    border-color: #2ecc71 !important;
    color:#2ecc71
}
.option-btn.wrong {
    background-color: #4a1515 !important;
    border-color: #e74c3c !important;
    color: #e74c3c;
}