/* Importação de fonte moderna */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

:root {
    --bg-color: #121212; /* Fundo principal: Preto muito escuro */
    --card-bg: #1a202c; /* Fundo do cartão de login: Azul escuro bem fechado */
    --text-color: #e0e0e0; /* Cor do texto claro: Cinza claro */
    --input-bg: #2d3748; /* Fundo dos campos de input: Azul cinzento escuro */
    --input-border: #3a475a; /* Borda dos campos de input: Um azul mais escuro */
    --primary-color: #4a90e2; /* Cor de destaque (botão, etc.): Azul vibrante */
    --primary-hover: #6cb0f0; /* Cor de destaque ao passar o mouse: Azul mais claro */
    --placeholder-color: #a0a0a0; /* Cor do placeholder: Cinza médio */
    --error-color: #ff4d4f; /* Cor para mensagens de erro: Vermelho (mantido para alerta) */
    --success-color: #52c41a; /* Cor para mensagens de sucesso: Verde (mantido para sucesso) */
    --shadow-color: rgba(0, 0, 0, 0.6); /* Sombra mais escura para contraste */
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    color: var(--text-color);
    overflow: hidden;
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    padding: 20px;
    box-sizing: border-box;
}

.login-box {
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--shadow-color);
    text-align: center;
    width: 100%;
    max-width: 400px;
    transform: translateY(0);
    transition: transform 0.5s ease-out, box-shadow 0.3s ease;
}

.login-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow-color);
}

.login-header {
    margin-bottom: 30px;
}

.logo-img {
    max-width: 120px;
    margin-bottom: 20px;
    border-radius: 50%;
    border: 3px solid var(--primary-color);
    padding: 5px;
    box-shadow: 0 0 15px rgba(74, 144, 226, 0.5); /* Brilho sutil azul */
    transition: transform 0.3s ease;
}

.logo-img:hover {
    transform: scale(1.05);
}

.login-header h2 {
    font-size: 2.2rem;
    color: var(--text-color);
    margin-bottom: 10px;
    font-weight: 600;
}

.login-header p {
    font-size: 1rem;
    color: var(--placeholder-color);
}

.login-form .form-group {
    margin-bottom: 20px;
    text-align: left;
    position: relative;
}

.login-form .form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--placeholder-color);
    font-size: 0.9rem;
    font-weight: 300;
    transition: all 0.2s ease;
}

.login-form .form-group label i {
    margin-right: 8px;
    color: var(--primary-color);
}

.login-form input[type="text"],
.login-form input[type="password"] {
    width: calc(100% - 20px);
    padding: 12px 10px;
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    color: var(--text-color);
    font-size: 1.1rem;
    transition: all 0.3s ease;
    outline: none;
    box-sizing: border-box;
}

.login-form input[type="text"]:focus,
.login-form input[type="password"]:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.3); /* Sombra azul no foco */
    background-color: #384358; /* Um pouco mais claro no foco */
}

/* Placeholder styling */
.login-form input::placeholder {
    color: var(--placeholder-color);
    opacity: 0.7;
}

.btn-login {
    width: 100%;
    padding: 15px;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    margin-top: 20px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.btn-login:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(74, 144, 226, 0.4); /* Sombra azul no hover */
}

.btn-login:active {
    transform: translateY(0);
    box-shadow: none;
}

.message-area {
    margin-top: 25px;
    font-size: 0.95rem;
}

.error-msg {
    color: var(--error-color);
    background-color: rgba(255, 77, 79, 0.15);
    padding: 10px 15px;
    border-radius: 8px;
    border: 1px solid var(--error-color);
    animation: fadein 0.5s;
}

.success-msg {
    color: var(--success-color);
    background-color: rgba(82, 196, 26, 0.15);
    padding: 10px 15px;
    border-radius: 8px;
    border: 1px solid var(--success-color);
    animation: fadein 0.5s;
}

@keyframes fadein {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* Responsividade */
@media (max-width: 768px) {
    .login-box {
        padding: 30px 20px;
        border-radius: 10px;
    }

    .login-header h2 {
        font-size: 1.8rem;
    }

    .login-header p {
        font-size: 0.9rem;
    }

    .login-form input {
        padding: 10px;
        font-size: 1rem;
    }

    .btn-login {
        padding: 12px;
        font-size: 1.1rem;
    }
}