/*Página básica*/
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    background-color: #121212;
    color: #e0e0e0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    flex-direction: column;
}

/*Containers principais*/
.main_div {
    display: flex;
    background-color: #1e1e1e;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    overflow: hidden;
    max-width: 900px;
    width: 90%;
}

/*Login e cadastro*/
#logCont, #sigCont {
    flex: 1;
    padding: 50px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background-color: #1e1e1e;
}

#logCont h1, #sigCont h1 {
    margin-bottom: 30px;
    font-size: 32px;
    color: #ffffff;
}

form input[type="text"],
form input[type="email"],
form input[type="password"],
form input[type="number"] {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 20px;
    border: 1px solid #444;
    border-radius: 8px;
    background-color: #2b2b2b;
    color: #e0e0e0;
    font-size: 16px;
    transition: all 0.3s ease;
}

form input:focus {
    border-color: #90caf9;
    outline: none;
    box-shadow: 0 0 5px rgba(144,202,249,0.7);
}

form button {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 8px;
    background-color: #90caf9;
    color: #121212;
    font-size: 18px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

form button:hover {
    background-color: #64b5f6;
}

p {
    margin-top: 15px;
    margin-bottom: 15px;
    font-size: 14px;
    color: #ccc;
}

/*Botões Radio*/
input[type="radio"] {
    margin-right: 8px;
}

label {
    margin-right: 15px;
    font-size: 14px;
    color: #e0e0e0;
}

.gender-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 20px;
}

.gender-group label {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    font-size: 14px;
    cursor: pointer;
}

.gender-group input[type="radio"] {
    width: 18px;
    height: 18px;
    margin-right: 10px;
    accent-color: #90caf9; /* cor do círculo quando selecionado */
}

/*Links*/
#logCont a {
    color: #90caf9;
    text-decoration: none;
    font-weight: bold;
}

#logCont a:hover {
    text-decoration: underline;
}

/*Imagens*/
#libImgCont, .main_div > div:last-child {
    flex: 1;
    overflow: hidden;
}

#libImgCont img, .main_div > div:last-child img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-left: 1px solid #444;
}

/*Pág de Livros*/

.menu {
    background-color: #222;
    padding: 10px 20px;
    margin-top: 20px;
    margin-bottom: 10px;
    border-radius: 15px;
}

.menu ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex; 
    justify-content: flex-start; 
    align-items: center;
}

.menu ul li {
    margin: 0 15px;
}

.menu ul li a {
    text-decoration: none;
    color: white;
    font-size: 14px;
    font-weight: bold;
    padding: 8px 12px;
    border-radius: 5px;
    transition: 0.3s;
}


.menu ul li a:hover {
    background-color: #555;
    color: #00c3ff;
}

.menu ul span {
    text-decoration: none;
    color: #90caf9;
    font-size: 14px;
    font-weight: bold;
    padding: 8px 12px;
    border-radius: 5px;
    transition: 0.3s;
}

.menu ul li button {
    width: 100%;
    padding: 8px 12px;
    border: none;
    border-radius: 5px;
    background-color: #222;
    color: #ffffff;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.menu ul li button:hover {
    background-color: #64b5f6;
}

.container {
    max-width: 1000px;
    margin: 20px auto;
    padding: 20px;
    background-color: #1e1e1e;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
}

.container h1 {
    text-align: center;
    color: #ffffff;
    margin-bottom: 30px;
}

#livrosList {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.livro-card {
    background-color: #2b2b2b;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.5);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.livro-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.7);
}

.livro-card h3 {
    margin-bottom: 1px;
    color: #90caf9;
    font-size: 20px;
}

.livro-card p {
    margin-bottom: 10px;
    color: #ccc;
    font-size: 14px;
}

.livro-card button {
    padding: 10px;
    border: none;
    border-radius: 8px;
    background-color: #90caf9;
    color: #121212;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.livro-card button:hover {
    background-color: #64b5f6;
}

/*Pág de Reservas*/

.reserva-card {
    background-color: #90caf9;
    padding: 10px 20px;
    margin: 20px;
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.reserva-card h3 {
    font-size: 20px;
    font-weight: bold;
    color: #2b2b2b;
}

.reserva-card p {
    font-size: 14px;
    color: #2b2b2b;
}

.reserva-card button {
    padding: 10px;
    border: none;
    border-radius: 8px;
    background-color: #2b2b2b;
    color: #90caf9;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.reserva-card button:hover {
    background-color: #000000;
}









/*Erros*/
.error {
    color: #ff5252;
    text-align: center;
    font-weight: bold;
    margin-top: 20px;
}

#livrosList p {
    text-align: center;
    font-size: 16px;
    color: #ccc;
}

/*Responsividade*/
@media (max-width: 768px) {
    .main_div {
        flex-direction: column;
        max-width: 400px;
    }

    .main_div > div:last-child {
        height: 200px;
        border-left: none;
        border-top: 1px solid #444;
    }
}

@media (max-width: 600px) {
    .container {
        margin: 20px;
        padding: 15px;
    }

    .livro-card h3 {
        font-size: 18px;
    }

    .livro-card p {
        font-size: 13px;
    }
}