/* Fundo com Gradiente Dinâmico (Azul, Branco e Amarelo Suave) */
body {
    background: linear-gradient(135deg, #0d6efd 0%, #f8f9fa 50%, #ffc107 100%);
    background-size: 200% 200%;
    animation: gradientMove 10s ease infinite;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

@keyframes gradientMove {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

/* Cartão Flutuante com Efeito Elevado */
.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 1rem;
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.login-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.2);
}

/* Campos de Formulário Modernos */
.form-control {
    border-radius: 0.5rem 0 0 0.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid #ced4da;
    transition: all 0.2s ease-in-out;
}

.form-control:focus {
    border-color: #0d6efd;
    box-shadow: none;
}

.input-group:focus-within {
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.15);
    border-radius: 0.5rem;
}

.input-group:focus-within .form-control,
.input-group:focus-within .btn {
    border-color: #0d6efd;
}

/* Botão do Olho */
.btn-outline-secondary {
    border-radius: 0 0.5rem 0.5rem 0;
    border-color: #ced4da;
    color: #6c757d;
}

.btn-outline-secondary:hover {
    background-color: #e9ecef;
    color: #0d6efd;
    border-color: #ced4da;
}

/* Botão Principal */
.btn-primary {
    border-radius: 0.5rem;
    padding: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    background: linear-gradient(45deg, #0d6efd, #0a58ca);
    border: none;
    transition: filter 0.2s ease;
}

.btn-primary:hover {
    filter: brightness(1.1);
}